WO2002046820A1 - Projecteur d'images, motif d'image projete, circuit de commande laser, dispositif imageur - Google Patents
Projecteur d'images, motif d'image projete, circuit de commande laser, dispositif imageur Download PDFInfo
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- WO2002046820A1 WO2002046820A1 PCT/JP2001/010620 JP0110620W WO0246820A1 WO 2002046820 A1 WO2002046820 A1 WO 2002046820A1 JP 0110620 W JP0110620 W JP 0110620W WO 0246820 A1 WO0246820 A1 WO 0246820A1
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- laser
- laser light
- laser beam
- light
- image
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- 238000003384 imaging method Methods 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 230000001678 irradiating effect Effects 0.000 claims description 25
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- 238000000034 method Methods 0.000 description 14
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- 230000001771 impaired effect Effects 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0402—Recording geometries or arrangements
- G03H1/0406—Image plane or focused image holograms, i.e. an image of the object or holobject is formed on, in or across the recording plane
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
- G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/26—Projecting separately subsidiary matter simultaneously with main image
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2249—Holobject properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3161—Modulator illumination systems using laser light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
- H04N9/3176—Constructional details thereof wherein the projection device is specially adapted for enhanced portability wherein the projection device is incorporated in a camera
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0402—Recording geometries or arrangements
- G03H2001/0436—Holographic camera
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
- G03H2001/2213—Diffusing screen revealing the real holobject, e.g. container filed with gel to reveal the 3D holobject
- G03H2001/2215—Plane screen
- G03H2001/2218—Plane screen being perpendicular to optical axis
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
- G03H2001/2213—Diffusing screen revealing the real holobject, e.g. container filed with gel to reveal the 3D holobject
- G03H2001/2221—Screen having complex surface, e.g. a structured object
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2244—Means for detecting or recording the holobject
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/20—2D object
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2222/00—Light sources or light beam properties
- G03H2222/10—Spectral composition
- G03H2222/12—Single or narrow bandwidth source, e.g. laser, light emitting diode [LED]
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2227/00—Mechanical components or mechanical aspects not otherwise provided for
- G03H2227/02—Handheld portable device, e.g. holographic camera, mobile holographic display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
Definitions
- Image projection device projected image pattern, laser drive device, photographing device
- the present invention relates to an image projection device, a projection image pattern, a laser drive device, and a photographing device suitable for use in, for example, an electronic still camera.
- the present invention relates to an image projection device, a projection image pattern, a laser driving device, and a photographing device that can easily perform force adjustment when photographing in the dark, for example.
- a method of illuminating the subject using an auxiliary light projecting device such as an LED to perform autofocus has been implemented.However, in this method, the focus can be adjusted when the contrast of the subject is small. It is difficult.
- a light emitting device with a large output required to obtain sufficient brightness for focusing can not be used near a subject because of large power consumption and large heat generation.
- an image projection apparatus that projects an arbitrary hologram reproduction image using a laser light source and a hologram plate has been proposed.
- Such a hologram reconstructed image can obtain a high contrast of the projected image. Therefore, it is conceivable to project this hologram reproduced image onto a subject and use it for focusing. That is, detection is performed with manual focus and focus using the hologram reproduced image projected on the subject.
- FIG. 14A a laser beam source 71 for generating a single diffused laser beam and a condenser lens 72 for converting the single diffused laser beam to a parallel laser beam are provided in a lens barrel 70.
- a laser beam source 71 for generating a single diffused laser beam and a condenser lens 72 for converting the single diffused laser beam to a parallel laser beam are provided in a lens barrel 70.
- the parallel laser light converted by the condenser lens 72 is used as a laser pointer for indicating an arbitrary point or the like.
- a hologram plate 73 is provided on a lens barrel 74 fitted to the lens barrel 70. A parallel laser is applied to this hologram plate 73.
- a hologram reproduction image is formed and projected.
- the laser-light source 71 and the condenser lens 72 are formed as an integral unit by the lens barrel 70.
- the hologram plate 73 of the lens barrel 74 is additionally provided. For example, if the lens barrel 74 is damaged, only the hologram plate 73 may come off.
- the hologram plate 73 separates as shown in FIG. If the parallel laser beam from step 2 is directly applied to the subject, for example, when the subject is a human, seeing the parallel laser beam may cause discomfort due to glare. When the hologram plate 73 is present, discomfort is alleviated by diffusion of light due to formation of a hologram reproduction image.
- the present application has been made in view of such a point, and the problem to be solved is, for example, in still camera shooting in the dark, a contrast detection type auto focus or manual. Focusing with focus is difficult. On the other hand, a conventional photographing device using an auxiliary light projection device cannot perform sufficient focusing and consumes large power. As a result, it could not be used in small electronic still cameras.
- the present invention is intended to facilitate the focus adjustment, for example, when taking a picture in the dark. For this reason, in the present invention, a photo obtained by using one laser light source and a hologram plate is used.
- An image projection device, a projection image pattern, a laser-driving device, and a photographing device according to the present invention are disclosed in which a reproduction image of an oral Durham is projected onto a subject.
- FIG. 1 is a block diagram showing a configuration of an embodiment of an image projection device and a photographing device to which the present invention is applied.
- FIG. 2 is a flowchart for explaining the operation
- FIG. 3 is a flowchart for explaining the operation
- FIG. 4 is a flowchart of a projected image pattern to which the present invention is applied.
- FIG. 2 is a diagram showing one embodiment.
- FIG.5 is an illustration for explaining this.
- FIG. 6 is a flowchart showing an embodiment of the operation of the laser driving apparatus to which the present invention is applied.
- FIG. 7 is a flowchart showing an operation for adjusting the output of the laser light source as another embodiment of the laser driving apparatus to which the present invention is applied.
- FIG. 8 is a diagram showing an environment for performing the adjustment.
- FIG. 9 is a block diagram showing one embodiment of a specific circuit of the laser drive device to which the present invention is applied.
- FIG. 10 is a flow chart showing the operation of still another embodiment of the laser driving apparatus to which the present invention is applied.
- FIG. 11 is a waveform diagram of a pulse signal for explaining still another embodiment of the laser driving apparatus to which the present invention is applied.
- FIG. 12 is a configuration diagram of a specific embodiment of the image projection device and the photographing device of the present invention.
- FIG. 13 is a diagram for explaining this.
- FIG. 14 is a configuration diagram of a conventional image projection apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows an image projection device and a photographing device to which the present invention is applied.
- FIG. 1 is a block diagram illustrating a configuration of one embodiment.
- image light from a subject is condensed through a main lens 1, a zoom lens 2, and a focus lens 3, and is charged as a charge-coupled device (Charge Coupled Device) as an imaging unit.
- a subject image is formed on the CCD 4.
- the subject image is photoelectrically converted by the CCD 4, and furthermore, a sampling hold and a gain control (hereinafter abbreviated as S / H & AGC). ) Converted to a digital signal by the circuit 5.
- the digital signal is converted into a chrominance signal and a luminance signal by the power camera signal processing circuit 6 and output to a signal recording system (not shown).
- the signal is supplied to an autofocus (hereinafter, abbreviated as AF) detection circuit 7, and a contrast signal required for AF is generated using the luminance signal, and the generated contrast signal is generated.
- AF autofocus
- a contrast signal required for AF is generated using the luminance signal, and the generated contrast signal is generated.
- a control microcomputer hereinafter abbreviated as a microcomputer 8.
- AF is performed by controlling the focus lens 3 so that the above-described contrast signal is maximized.
- the focus lens 3 is controlled by, for example, sending a control amount to the motor driver circuit 10 to drive the focus motor 11.
- the zoom lens 2 is controlled by, for example, the motor driver circuit 10. This is performed by sending a control amount and driving the zoom motor 12.
- control signal from the microcomputer 8 is supplied to the laser Only during the period when this control signal is supplied.
- the laser 14 is driven to generate a laser beam. Further, the generated laser beam is condensed into parallel light by a condensing lens 15, and the parallel light is applied to a hologram plate 16, and the hologram is provided by a hologram provided on the hologram plate 16. Is diffracted. The diffracted laser beams interfere with each other and a hologram reconstructed image 17 is reconstructed.
- the reproduced hologram reproduced image 17 can be projected onto, for example, the subject in the optical axis direction of the main lens 1.
- the projected area can be reduced compared to the projected range, and the illuminance of the object can be increased to achieve contrast. It can project an image with high brightness. In other words, by projecting a high-contrast image, sufficient focus adjustment can be easily performed.
- the projection means (apparatus) of the hologram reproduced image 17 as described above can be easily obtained, for example, as an auxiliary apparatus for an existing laser pointer, and can be easily formed by applying such an apparatus. You can do it.
- Driving the laser diode 14 used in such a laser pointer can be achieved with extremely low power consumption.For example, it can be built into a small electronic still camera and used with a power supply such as a built-in battery. It can also be easily implemented.
- a manual switch 18 for controlling the projection of the hologram reproduced image 17 onto the subject is provided.
- a signal having a high potential is supplied to the microcomputer 8.
- a control signal from the microcomputer 8 is supplied to the flash device 19, and the light emission of the flash device 19 is controlled as necessary.
- data equivalent to measured values and control values formed in microcomputer 8. Is stored in a non-volatile memory (eg, EEPROM) 20.
- FIG. 2 shows a flowchart of an embodiment of a process for performing an autofocus by the above-described apparatus. That is, when the processing is started in FIG. 2, it is first determined in step [1] whether or not the shutter button 9 has been half-pressed. If the shutter button 9 has not been pressed (No), this step [ 1] is repeated. If the shutter button 9 is pressed in step [1] (Yes), the laser diode 14 is driven in step [2] to turn on the laser.
- step [3] An AF operation is performed in step [3], and an AF operation is performed in step [4].
- step [5] Stops the laser diode 14 and turns off the laser. Further, in step [.6], for example, a flash is emitted to capture (take) an image, and the process is stopped.
- the processing when the above-described device is applied to the focus is performed.
- the hologram reproduction image 17 turned on in step [2] is projected on the subject, and the hologram reproduction image 17 is displayed.
- Very good AF operation can be performed by using.
- the hologram reproduced image 17 is turned off by step [5] when the image is captured (photographed), so that it does not disturb the photographing.
- FIG. 3 shows a flowchart of an embodiment of a process when the above-described apparatus is used in manual focus. That is, in this case, for example, the manual switch 18 in the above-described device is used.
- the process is started by being operated.
- step [11] the laser diode 14 is driven to turn on the laser light emission.
- step [1 2] it is determined whether or not the shutter button 9 has been half-pressed.
- steps [1 1] and [1 2] are repeated because the manual focus is not finished.
- laser diode 14 stops in step [13]. To turn off the laser
- the processing when the above-described apparatus is used in the manual focus is performed.
- the hologram reconstructed image 17 turned on in step [11] is projected on the subject, and by confirming the hologram reconstructed image 17, extremely good manual focusing can be performed.
- the hologram reconstructed image 17 is turned off in step [13] when the image is captured (photographed), so that it does not interfere with the photographing.
- the hologram reproduced image obtained by using the laser light source and the hologram plate is projected onto the object, so that the holo-holam reproduced image of sufficient contrast with small power consumption is projected on the object.
- the focus detection with contrast detection and manual focus can be performed satisfactorily, and it is easy to integrate this device into a small electronic still camera, for example. can do.
- contrast detection type auto focus or manual focus In contrast, conventional imaging devices that use the auxiliary light projector cannot perform sufficient focusing and consume large amounts of power because of the difficulty in focusing. According to the present invention, these problems can be easily solved, which cannot be used in a small electronic still camera or the like.
- a projection image pattern of a hologram reconstructed image used for projection uses, for example, a pattern shown in FIG. That is, FIG. 4 shows an embodiment of a projected image pattern to which the present invention is applied.
- the projected image pattern is formed of at least one or more first to fifth line segments A to E in which a predetermined number of light spots are linearly arranged. Then, a first line segment A is provided at the center of the projection image at an angle of about 45 degrees with respect to the horizontal and vertical axes of the imaging plane.
- a square (circumscribed by a dashed line: a square indicated by a dashed line is not a projected image pattern, the same applies to the following) of a square circumscribing the circumference of a predetermined distance a from the center of the first line segment A the second segment B ⁇ B 4 line 4 at an angle you orthogonal to a in is provided. Is found in a square (dotted line shown) of each vertex and each side of the X 2 first into two halves position circumscribing the circumference of twice the distance 2 a predetermined distance from the center of the first line A Eight third line segments C i to C 8 are provided at an angle parallel to the line segment ⁇ .
- each of the line segments A to E is, for example, 15 light spots arranged in a straight line, and the length of these line segments A to E is, for example, the projection angle.
- the angle is set to 0.8 degrees, and the line A is formed by removing the center point of the arranged light spots. That is, a hologram for obtaining such a line segment A to E shown in FIG. 4 as a reproduced image is obtained by calculation, and a hologram based on this calculation is provided on the hologram plate 16.
- a square X The circumference of a predetermined distance a inscribed in the projection is set to a projection angle of 3 degrees.
- the output of the laser diode 14 is set to be below the safety standard.
- the amount of heat does not exceed the safety standard even if the position of the viewpoint is moved at each projection angle.
- the maximum energy with respect to the acceptance angle for this calorific value was obtained by a simulation, and as shown in the graph of FIG. 5, even if continuous light emission was used, it was 100% of JIS Class 1 0 seconds It complies with AEL safety standards.
- the autofocus detection range is set to about 3 degrees as the projection angle, and Even when the optical axis of the shadow lens does not coincide with the center of the projected image pattern, it is possible to eliminate the possibility that a line segment does not enter the detection range at all.
- the light spot at the center among the light spots forming the first line segment A at the center is removed.
- the 0th-order light may be generated at the center of the image. Good detection can be performed without increasing the brightness of the light spot. Even if there is no brightness only at the central light spot, it does not hinder, for example, the detection of auto focus.
- FIG. 6 is a flowchart showing an embodiment of the operation of the laser driving apparatus to which the present invention is applied.
- step [2 1] When the operation is started in FI G. 6, it is first determined in step [2 1] whether or not the shutter button 9 has been half-pressed. If the shutter button 9 has been pressed (Y es), step [2 2] It is determined whether the on-counter value of an arbitrary register is less than 100 seconds. If it is less than 100 seconds (Yes), a predetermined value is added to the on-force counter value in step [23], and the off-counter value of any register is reset to 0 in step [24]. In step [25], laser irradiation is maintained.
- step [26] it is determined whether or not the power-off is instructed. If the power-off is instructed (Yes), the operation is terminated (end), and the power-off is not instructed. Time (N o) is returned to step [2 1]. When the shutter button 9 is not pressed in step [2 1] (No), and when the shutter button 9 is turned on in step [2 2]. If the value is not less than 100 seconds (No), it is determined in step [27] whether or not the off-counter value is less than 5 seconds.
- step [27] If the off-counter value is less than 5 seconds (Y es) in step [27], a predetermined value is added to the off-counter value in step [28]. If the off-counter value is not less than 5 seconds (No) in step [27], the on-counter value is reset to 0 in step [29]. After the execution of steps [28] and [29], the irradiation of the laser beam is stopped in step [30], and the process proceeds to the determination of power-off in step [26].
- the laser irradiation is stopped when the on-counter value exceeds 100 seconds, and the on-count value is not reset while the off-count value is less than 5 seconds.
- the operation is performed so that the stop period of the is always provided for 5 seconds or more. This prevents the output from dropping due to heating or the like when laser irradiation is performed continuously, for example, and eliminates the need for a heat sink or the like used as a conventional heating measure. You.
- FIGS. 7 and 8 show a flow chart of an operation for adjusting the output of the laser diode 14 as another embodiment of the laser driving device to which the present invention is applied.
- Fig. 8 shows the environment for making the adjustment.
- a screen 200 is provided on one wall surface of a box 100 whose inside is painted black.
- the above-described photographing device is arranged in a hole 300 provided on a wall surface facing the screen 200. Then, the above-mentioned Holodaram reproduced image 17 is projected on the screen 200, and the projected image on the screen 200 is photographed by the CCD 4. Further, the photographing output from the CCD 4 is detected, and the output of the laser diode 14 is adjusted.
- step [31] the control value (DA) supplied from the microcomputer 8 to the laser driver 13 is set to the initial value.
- the lens position is set to the distance between the photographing device arranged in the hole 300 and the screen 200.
- step [33] the control value (DA) is supplied from the microcomputer 8 to the laser driver 13 through the DA output. Further, in step [34], driving of the laser diode 14 is started.
- step [35] the automatic exposure (A E) detection value (A E D A T A) is detected from the photographing output, and step [
- the value for adjusting the variation in the output of the laser diode 14 is stored in the nonvolatile memory 20.
- other conditions and the like are set based on the values stored in the memory 20.
- the control value (DA) for driving the laser diode 14 is calculated in consideration of this. In other words, at the time of shooting, the value stored in the memory 20 is read out and used as the base value for adjustment, and the output of the laser diode 14 is controlled in consideration of information such as the aperture and zoom position. Is done.
- the variation in the output of the laser diode 14 can be adjusted using not only the automatic exposure detection value described above but also a contrast detection value.
- the control value (DA) serving as the target value is stored.
- the memory 20 stores not only the above-mentioned control values but also the detection values themselves and other measured values, so that, for example, when performing service checks or repairs after product pick-up at the time of manufacture and shipment. It can also be used for performance checks.
- the output of laser-diode 14 is adjusted, including the sensitivity of CCD4. That is, the output of the laser diode 14 with respect to the control value varies among individuals, but similarly, the sensitivity of the CCD 4 also varies by about 20%. Then, in the state of the imaging apparatus assembled, the output is adjusted using the imaging output from the CCD 4, so that the adjustment that absorbs the variation between the two is performed.
- the laser driver 13 is specifically configured
- FIG. 9 is a block diagram showing an embodiment of a specific circuit of the laser driving apparatus to which the present invention is applied.
- the laser diode 14 is driven by, for example, a 5 V power supply, and other circuits including the microcomputer 8 are driven by a 3.2 V power supply.
- the output signal from the microcomputer 8 is supplied to the switching transistor 52 provided on the 5 V power supply line through the switching transistor 51, and the 5 V power supply is turned on and off. Done.
- the turned on / off 5 V power is supplied to the laser diode 14 via the transistor 53.
- a photo diode 54 is provided near the laser diode 14.
- the output of the photodiode 54 is supplied to the non-inverting input of the operational amplifier 55, and the control value from the microcomputer 8 is supplied to the operational amplifier 55 through the DZA converter (DAC) 56.
- the output of the operational amplifier 55 is supplied to the base of the transistor 53. As a result, the output of the laser diode 14 is adjusted so that the output of the photodiode 54 becomes a desired value.
- the output of the switching transistor 52 is supplied to the falling trigger input of a monostable multivibrator (hereinafter abbreviated as monomulti) 57.
- monomulti monostable multivibrator
- the Q output of the monomulti 57 is supplied to the base of the transistor 59 through the transistor 58, and the signal obtained by the collector of the transistor 59 is supplied from the switching transistor 52. It is supplied to the base of a transistor 60 provided between the power supply line of 5 V and the base of the transistor 53.
- the output of the photodiode 54 is supplied to the A / D conversion input of the microcomputer 8. And this microcomputer 8 Then, the output of the photodiode 54 is monitored, and the operation shown in FIG. 10 is performed, for example.
- FIG. 10 shows a flow chart of a laser driving device to which the present invention is applied, as well as another embodiment.
- step [41] it is first determined in step [41] whether or not the shutter button 9 has been half-pressed. If the shutter button 9 has been pressed (Y es), the shutter diode 9 has been pressed in step [4 2] and the photodiode 5 has been pressed. It is determined whether the monitor voltage obtained from 4 is equal to an arbitrary reference voltage. If they are equal (Y e s), the process proceeds to step [43] to maintain the laser irradiation.
- step [44] Laser irradiation is stopped.
- step [45] it is determined whether or not power off is instructed. When the power is off (Yes), the operation is terminated (end), and when the power off is not instructed. (No) is returned to step [41].
- the irradiation of the laser beam is stopped when the monitor voltage obtained from the photodiode 54 is not equal to an arbitrary reference voltage. That is, the generation of laser light is stopped on condition that the output of the monitor means exceeds an arbitrary allowable range. As a result, the risk of damage to the laser diode 14 or impaired durability due to abnormal driving of the laser diode 14 can be eliminated.
- FIG. 11 shows that the laser to which the present invention is applied is
- FIG. 9 is a waveform diagram of a pulse signal for explaining still another embodiment of the driving device.
- the microcomputer 8 can form a pulse signal with, for example, 0.1 S ⁇ sec accuracy by using a counter.
- the pulse width can be controlled in 0.16 msec units (also, Can be adjusted in 0.1 mW units, for example, in the range of 0 to 3 mW.Therefore, for example, based on the value stored in the memory 20 by the operation of FIG.
- the pulse width is controlled in consideration of other conditions.
- the amplitude of the pulse signal is set to 2.5 mW based on the value stored in the memory 20.
- the pulse width of each pulse signal is controlled in accordance with the use of the built-in flash device 19 and the use of an external flash device. That is, for example, when using the built-in flash device 19
- the shooting distance is expected to be long, so it is controlled at 10 msec.
- a pulse signal is formed at a period of 33 ms in synchronization with the frame. Since the autofocus control is possible within 50 frames, the number of pulses in one operation is set to end at a maximum of 50. In this way, the output of the laser diode 14 is adjusted. That is, such an operation is performed by the software of the microcomputer 8.
- FIG. 11B shows the state of the pulse signal when the shutter button 9 is half-pressed repeatedly.
- it takes about 4 seconds to load the data into the storage device An interval of 4 seconds is formed, but the interval of 1 second is set even if the shutter button 9 is half-pressed quickly.
- Such an operation is also performed by software of the microcomputer 8, and for example, is set from 0 to 4 seconds in units of 0.25 seconds according to the value of the memory 20.
- the light amount of the laser light can be favorably adjusted, and the built-in flash device 19 and the external flash device can be controlled.
- the pulse width is controlled to adjust the amount of light, or when the means for adjusting the amount of light from the laser beam malfunctions, the drive of the laser diode 14 is stopped and the laser is stopped. It is possible to eliminate the possibility that the diode 14 is damaged or the durability is impaired.
- the image projection apparatus includes a laser light source that generates laser light and a hologram plate, and emits laser light.
- a laser light source that generates laser light
- a hologram plate By projecting the hologram reproduction image obtained by irradiating the hologram plate onto the object, a sufficient contrast hologram reproduction image can be projected onto the object with low power consumption, and good focusing is achieved.
- this device is built in, for example, a small electronic still camera.
- the use of the above-described FIG. 4 pattern allows the calorific value to exceed the safety standard even if the viewpoint is moved at each projection angle.
- the distance between the actual line segments can be reduced by half the length of the line segment.
- the detection range It is possible to eliminate the possibility of occurrence of a state in which a line segment does not enter at all.
- the laser driving device of the present invention has a laser light source for generating laser light, and generates laser light on condition that the emission duration of the laser light exceeds a predetermined time. By stopping for a certain period of time or more, the output is prevented from dropping due to heating, for example, when laser irradiation is performed continuously, eliminating the need for a heat sink or the like that has been used as a conventional heating measure. You can do it.
- a laser driving apparatus having a laser light source for generating laser light, a means for adjusting the light amount of the laser light, and a photographing means.
- the output of the laser-light source is adjusted, including the above, and adjustment is made to absorb the variation between the two.
- the laser drive device includes a laser light source that generates laser light, and a monitor that detects the laser light, and the output of the monitor has an arbitrary allowable range.
- a laser driving apparatus having a laser light source for generating laser light and a means for adjusting the light amount of the laser light, wherein the laser light source emits an arbitrary pulse.
- a hologram reproduction image obtained by irradiating the hologram plate with a laser light source and a hologram plate and irradiating the hologram plate with the laser light from the laser light source is projected on the subject.
- a projection means for shadowing a sufficient contrast hologram reconstructed image can be projected onto a subject with low power consumption, focusing can be performed well, and this device is, for example, small. It can be easily realized to be built into an electronic still camera.
- Focusing can be done in one step.
- Light emission efficiency is several times higher than that of conventional light-catching devices, and sufficient illuminance can be obtained with a low-output light emitting device, and energy consumption is reduced by a fraction.
- FIG. 12 shows the configuration of a specific embodiment of the image projection device and the photographing device of the present invention. That is, in FIG. 12A, only the laser diode 14 for generating one light of the diffused laser is provided in the mirror frame 21. A focusing lens 15 for converting one diffused laser beam into a parallel laser beam is provided in a mirror frame 22 fitted to the mirror frame 21, and a hologram plate 16 is formed, for example, by a holding ring. Attached by 23 and provided as an integral unit.
- the lens frames 21 and 22 are fixed with an adhesive or the like. Then, the mirror frame 21 and the mirror frame 22 are attached to predetermined positions of the camera housing 25 through the transparent acrylic cover 24. That is, a window provided with the transparent acrylic cover 24 is formed at a predetermined position of the camera housing 25, and the mirror frames 21 and 22 are attached to the transparent acrylic cover 24.
- the generated diffused laser light is converted into a parallel laser light by the condenser lens 15 and the hologram plate 16 is irradiated with the parallel laser light to form a hologram reproduction image (not shown) (
- the hologram reproduced image is projected toward a subject through a transparent acrylic cover 24 provided at a predetermined position of the camera housing 25.
- the condenser lens 15 and the hologram plate 16 are formed in an integral unit. Therefore, for example, when the lens frame 22 is damaged, both the condenser lens 15 and the hologram plate 16 are separated from the laser diode 14 as shown in FIG. 12B. That is, for example, when the lens frame 22 is damaged and the hologram plate 16 is detached, the focusing lens 15 is also detached from the laser diode 14 at the same time.
- the diffused laser light is generated from the laser diode 14 from which the condenser lens 15 has been detached, so that even if the diffused laser light is directly applied to the subject, for example, Even in the case of humans, there is no danger of seeing such diffused laser light giving discomfort due to glare. Therefore, according to this embodiment, even when the hologram plate is detached, the fear of causing discomfort due to glare can be eliminated.
- a hologram image is projected such that the projection angle of the center circle is about 5 degrees and the projection angle of the outer circle is about 20 degrees. Furthermore, by forming these hologram images with thin lines, it is possible to project light with sufficient brightness even with a device with a small output.
- a laser light source that generates a diffuse laser beam
- a condenser lens that converts a diffuse laser beam into a parallel laser beam
- a parallel laser beam A hologram plate irradiated with light, wherein the condensing lens and the hologram plate are formed as an integral unit, so that even when the hologram plate is detached, the glare is reduced. It is possible to eliminate the fear of causing discomfort.
- a laser light source for generating one diffused laser beam, a condensing lens for converting the diffused laser light to one parallel laser beam, and a hologram plate irradiated with one parallel laser beam has an image projection device in which a condensing lens and a hologram plate are formed as an integral unit, and a hologram reproduction image obtained by irradiating a hologram plate with one parallel laser beam is applied to the subject.
- a sufficiently contrasted hologram reconstructed image can be projected onto the subject to achieve good focusing, and even if the hologram plate is detached, discomfort due to glare Can eliminate the fear of giving
- a hologram plate is composed of a laser light source for generating a laser beam and a hologram plate, and a hologram reproduction image obtained by irradiating the hologram plate with the laser beam is projected onto a subject.
- a sufficient contrast hologram reproduction image can be projected onto the subject with low power consumption, focusing can be performed well, and this device can be easily built into a small electronic still camera, for example. It can be realized in.
- an extremely good AF operation can be performed by performing autofocus using a projection image of a hologram reproduction image projected on a subject.
- the operation means for projecting the hologram reproduction image at the time of manual focusing, it is possible to perform an extremely good manual focus by confirming the hologram reproduction image.
- this hologram reproduction image does not interfere with the photographing.
- a laser beam source for generating a diffuse laser beam, a condenser lens for converting one diffuse laser beam to a parallel laser beam, and a hologram plate irradiated with one parallel laser beam
- a hologram reproduction image obtained by irradiating a hologram plate with one parallel laser beam onto a subject a hologram reproduction image of a sufficient contrast is projected on the subject. Focus on the hologram. -It can eliminate the danger of discomfort caused by glare even if the child comes off.
- the present invention by performing autofocus using the projection image of the hologram reproduction image projected on the subject, it is possible to perform an extremely good AF operation and remove the hologram plate. In this case, the danger of causing discomfort due to glare can be eliminated.
- the calorific value does not exceed the safety standard, and the length of the line segment is not changed.
- the distance between the actual line segments can be reduced by half the distance, and even if the optical axis of the shooting lens does not coincide with the center of the projected image, the line segment can be detected within the detection range. It is possible to eliminate the risk of occurrence of a state in which no data can be entered.
- the light of the center of the first line segment is generated by the 0th-order light. Good detection can be performed without increasing the brightness of the point.
- a laser light source for generating a laser light, and the generation of the laser light is stopped for a predetermined time or more on condition that the laser light emission duration time exceeds a predetermined time.
- a hologram reconstructed image obtained by irradiating an arbitrary hologram plate with a laser beam is projected onto a subject, thereby achieving a sufficient contrast hologram reconstructed image with small power consumption. Can be projected onto the subject to achieve good focusing.
- this device is incorporated in, for example, a small electronic still camera.
- a laser driving apparatus having a laser light source for generating laser light, a means for adjusting the amount of laser light, and a photographing means, wherein the laser light is projected in advance.
- a means is provided for storing the adjustment value obtained in accordance with the output of the photographing means that has taken the image, and the light amount of the laser beam is adjusted based on the stored adjustment value. The output of the light source is adjusted, and the adjustment is made to absorb variations between the two.
- a hologram reproduction image obtained by irradiating an arbitrary hologram plate with a laser beam is projected on the object, so that a sufficient contrast hologram reproduction image with small power consumption can be obtained.
- good focusing can be achieved, and this device can be easily incorporated in, for example, a small electronic still camera.
- the amount of one laser beam is adjusted based on an automatic exposure detection value detected from a video signal photographed by the photographing means, so that a circuit can be used in an existing photographing apparatus. And good adjustments are made.
- the adjustment of the light amount of the laser beam is performed based on the contrast detection value detected from the video signal photographed by the photographing means. Good adjustments can be made by diversion.
- a laser light source for generating a laser beam, and a monitor for detecting the laser beam, provided that the output of the monitor exceeds an arbitrary allowable range.
- a hologram reconstructed image obtained by irradiating an arbitrary hologram plate with a laser beam is projected onto a subject, so that a hologram reconstructed image of sufficient contrast with small power consumption is obtained.
- a laser driving apparatus having a laser light source for generating a laser light and a means for adjusting a light amount of the laser light, wherein the laser light source is pulsed with an arbitrary pulse width.
- Driving adjusts the light intensity of one laser beam.
- the light intensity of one laser beam can be adjusted satisfactorily, and the light intensity can be adjusted according to whether or not a built-in flash device is used. This can eliminate the fear that the laser light source is damaged or the durability is impaired.
- the use of a built-in flash device is provided by having an arbitrary illumination means and controlling the pulse width according to the light quantity of the illumination means to adjust the light quantity of one laser beam.
- the light amount can be adjusted well according to the presence or absence.
- the provision of the means for stopping the generation of the laser light during the malfunction of the means for adjusting the light amount of the laser light causes damage to the laser light source and impairs the durability thereof. This can eliminate the fear of the situation.
- a hologram reconstructed image obtained by using a laser single light source and a hologram plate is projected onto a subject, so that a sufficient contrast hologram reconstructed image with small power consumption can be obtained.
- the contrast detection method can be used for focusing and manual focusing, and this device can be used, for example, with a small electronic still camera. It can be easily implemented in a camera.
- an extremely good AF operation can be performed by performing autofocus using a projection image of a program reproduction image projected on a subject.
- the operation means for projecting the hologram reconstructed image at the time of manual focusing by providing the operation means for projecting the hologram reconstructed image at the time of manual focusing, an extremely good manual force can be performed by confirming the hologram reconstructed image. At the same time, the hologram reproduced image does not interfere with the photographing.
- the laser irradiation is stopped for a certain period of time or more on condition that the laser light emission duration exceeds a predetermined time, so that, for example, laser irradiation can be continued.
- the output is prevented from dropping due to heating or the like, and a heat sink or the like used as a conventional heating measure can be eliminated.
- a means for adjusting the light amount of one laser beam and a photographing means and an adjustment value obtained in advance according to an output of the photographing means which has projected and photographed the one laser beam.
- the output of the laser light source including the sensitivity of the imaging means, is adjusted by adjusting the light amount of the laser beam based on the stored adjustment value. Adjustment that absorbs> ⁇ .
- the amount of one laser beam is adjusted based on an automatic exposure detection value detected from a video signal photographed by the photographing means, so that a circuit can be used in an existing photographing apparatus. And good adjustments are made.
- the adjustment of the light amount of one laser beam is performed based on a contrast detection value detected from a video signal photographed by the photographing means.
- a monitor means for detecting a laser beam and the generation of the laser beam is stopped on condition that the output of the monitor means exceeds an arbitrary allowable range.
- the present invention there is provided means for adjusting the amount of laser light, and the amount of laser light is adjusted by pulse driving the laser light source with an arbitrary pulse width.
- the amount of light is adjusted by pulse driving the laser light source with an arbitrary pulse width.
- a built-in flash device is provided by further providing an arbitrary illumination means and controlling the T pulse width according to the light intensity of the illumination means to adjust the light intensity of the laser beam. It is possible to satisfactorily adjust the amount of light depending on whether or not the light is used.
- the provision of the means for stopping the generation of the laser beam when the means for adjusting the light amount of the laser beam is malfunctioning is provided, so that the damage and durability of the laser beam source are impaired. It can eliminate such fears.
- a hologram reconstructed image obtained using a laser light source and a hologram plate is projected onto a subject, and the hologram plate and a condenser lens for converting laser light are integrated into a single unit.
- an extremely good AF operation can be performed by performing autofocus using a projection image of a hologram reconstructed image projected on a subject.
- the operation means for projecting the hologram reconstructed image at the time of manual focusing, it is possible to perform an extremely good manual force by confirming the hologram reconstructed image. At the same time, the hologram reproduced image does not interfere with the photographing.
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60141121T DE60141121D1 (de) | 2000-12-07 | 2001-12-05 | Kamera mit holografischem autofokus-bildmuster |
US10/203,117 US6892027B2 (en) | 2000-12-07 | 2001-12-05 | Image projector, projected image pattern, laser driver, imaging device |
EP01999850A EP1260844B1 (en) | 2000-12-07 | 2001-12-05 | Camera with holographic autofocus image pattern |
US10/984,388 US7228070B2 (en) | 2000-12-07 | 2004-11-09 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/084,465 US6973263B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/083,790 US6970647B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/083,528 US6990292B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/497,083 US7248795B2 (en) | 2000-12-07 | 2006-08-01 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2000-373075 | 2000-12-07 | ||
JP2000373075 | 2000-12-07 | ||
JP2001269178A JP3928391B2 (ja) | 2000-12-07 | 2001-09-05 | 撮像装置及び撮像方法 |
JP2001-269178 | 2001-09-05 | ||
JP2001269177A JP3992466B2 (ja) | 2000-12-07 | 2001-09-05 | 撮影装置、画像投影方法、及び撮影方法 |
JP2001-269177 | 2001-09-05 |
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US10203117 A-371-Of-International | 2001-12-05 | ||
US10/984,388 Division US7228070B2 (en) | 2000-12-07 | 2004-11-09 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/083,528 Continuation US6990292B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/083,790 Continuation US6970647B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
US11/084,465 Continuation US6973263B2 (en) | 2000-12-07 | 2005-03-18 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus |
Publications (1)
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WO2002046820A1 true WO2002046820A1 (fr) | 2002-06-13 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2001/010620 WO2002046820A1 (fr) | 2000-12-07 | 2001-12-05 | Projecteur d'images, motif d'image projete, circuit de commande laser, dispositif imageur |
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US (6) | US6892027B2 (ja) |
EP (2) | EP1890178B1 (ja) |
KR (1) | KR100889408B1 (ja) |
CN (2) | CN100498408C (ja) |
DE (2) | DE60140705D1 (ja) |
WO (1) | WO2002046820A1 (ja) |
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CN109270767A (zh) * | 2018-09-29 | 2019-01-25 | 苏州福瑞智电电气有限公司 | 具备多套成像的激光镜头瞄准装置 |
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- 2001-12-05 WO PCT/JP2001/010620 patent/WO2002046820A1/ja active Application Filing
- 2001-12-05 CN CNB018064930A patent/CN1208654C/zh not_active Expired - Fee Related
- 2001-12-05 DE DE60140705T patent/DE60140705D1/de not_active Expired - Lifetime
- 2001-12-05 US US10/203,117 patent/US6892027B2/en not_active Expired - Fee Related
- 2001-12-05 EP EP07022917A patent/EP1890178B1/en not_active Expired - Lifetime
- 2001-12-05 DE DE60141121T patent/DE60141121D1/de not_active Expired - Lifetime
- 2001-12-05 KR KR1020027010161A patent/KR100889408B1/ko not_active IP Right Cessation
- 2001-12-05 EP EP01999850A patent/EP1260844B1/en not_active Expired - Lifetime
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2004
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2005
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Also Published As
Publication number | Publication date |
---|---|
CN1418321A (zh) | 2003-05-14 |
US7228070B2 (en) | 2007-06-05 |
US20060263076A1 (en) | 2006-11-23 |
CN1208654C (zh) | 2005-06-29 |
US20050163495A1 (en) | 2005-07-28 |
EP1260844A4 (en) | 2006-09-13 |
CN1603875A (zh) | 2005-04-06 |
EP1260844A1 (en) | 2002-11-27 |
US7248795B2 (en) | 2007-07-24 |
US20050084258A1 (en) | 2005-04-21 |
US6970647B2 (en) | 2005-11-29 |
EP1260844B1 (en) | 2010-01-20 |
US20050163497A1 (en) | 2005-07-28 |
US6892027B2 (en) | 2005-05-10 |
KR100889408B1 (ko) | 2009-03-20 |
DE60141121D1 (de) | 2010-03-11 |
US6973263B2 (en) | 2005-12-06 |
DE60140705D1 (de) | 2010-01-14 |
EP1890178B1 (en) | 2009-12-02 |
US6990292B2 (en) | 2006-01-24 |
EP1890178A1 (en) | 2008-02-20 |
US20050163496A1 (en) | 2005-07-28 |
US20030147050A1 (en) | 2003-08-07 |
KR20020086501A (ko) | 2002-11-18 |
CN100498408C (zh) | 2009-06-10 |
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