WO2015090632A1

WO2015090632A1 - Object magnifier and recording device for imaging an object

Info

Publication number: WO2015090632A1
Application number: PCT/EP2014/062903
Authority: WO
Inventors: Benedikt Schmalz
Original assignee: Benedikt Schmalz
Priority date: 2013-12-19
Filing date: 2014-06-18
Publication date: 2015-06-25
Also published as: CH710740B1; WO2015089677A1; DE202014011527U1; DE112014005765A5

Abstract

The present invention relates to a recording device for imaging an object. Said recording device (1) comprises a recording unit (11). The object is substantially imaged onto two optical paths (111, 112) with a respective angle (α, ß) with respect to an optical axis (10). Each optical path (111, 112) is associated with an image plane (110). Said image plane (110) preferably has one or more light-sensitive elements (112). The angles (α, ß) of the optical paths can be adjusted with respect to the optical axis (10).

Description

Object magnifier and recording device for imaging an object

The present invention relates to a Obj ectvergrösserer and a receiving device for imaging an object according to the preambles of the independent claims.

Receiving devices and obj ektvergrösserer are preferably used in the medical field, and in particular during operations. From the prior art are different

Devices are known to assist physicians and surgeons with operations, and / or an object or a too

enlarge the operating area. By way of example, US Pat. No. 6,525,878 has disclosed a system which allows an operating surgeon and his assistant to assume different positions with respect to the area to be operated on. The device of US 6,525,878 also provides a three-dimensional image. Both the surgeon and the assistant will

identical picture provided. The device comprises a system of lenses and prisms running along one

strung together on the optical axis and which divides the object to be imaged into different channels. This device is expensive to manufacture and maintain. A variety of optical elements, such as lenses and prisms, are needed to image the corresponding images in image rendering devices associated with the surgeon and the assistant. It is an object of the invention to overcome the disadvantages of the prior art. In particular, a device for

Which allows the surgeon and assistant to work independently. The Device should also make it possible to provide both the surgeon and the assistant a working position, which fatigue phenomena, caused by an unnatural working posture or working position, prevents.

This task is carried out by the independent

Claims defined devices solved. Further

Embodiments emerge from the dependent ones

Claims.

An inventive recording device for imaging an object comprises a recording unit with an optical axis. The object is essentially imaged on two optical paths, each with an angle to the optical axis. Each optical path is assigned an image plane. The image plane preferably comprises one or more photosensitive

Elements, wherein the photosensitive elements are preferably CCD sensors or CMOS sensors. Further alternative

Image sensors are conceivable. The angles of the optical paths to the optical axis are adjustable.

The optical axis essentially corresponds to the direction in which an object (possibly on several image planes) is imaged. The optical axis is typically in

Area of the center of the receiving device arranged. The optical paths are the paths in which, for example, a left and a right image are projected and imaged for a stereoscopic image. The image plane is the area in which the object is displayed. The image plane can also be designed as an independent component.

A recording device with two optical paths allows a stereoscopic image of an object. The adjustability the angle of the optical paths to the optical axis makes it possible to make different settings and to image an object regardless of its design. Preferably, the receiving device is designed such that each optical path associated with one or more optical components. The optical components may preferably be protective glasses or lenses arranged in the respective optical paths.

This makes it possible to cover and / or protect the photosensitive elements from the environment. This is

especially in operating theaters of advantage, since both the

Sensors of, for example, liquids that at a

Operation can occur, are protected and that too

Operating object also protected from dust or particles that may be located in and / or on the recording device is protected. With one or more optical lenses, it is possible to provide a pick-up device which has a basic optical setting.

The optical paths preferably have an intersection with the optical axis. The intersection defines a

Object plane. The object plane is the area of

Recording device on which the image of the object

is recorded.

This allows an accurate and defined position of the

Object plane. The adjustability of the angles of the optical paths, it is thus possible, for example, the

Move object plane along the optical axis. Thus, the recording device can be adjusted to different objects, regardless of whether the distance between Recording device and object corresponds to a predefined distance or not. An adjustability of

Recording device along the optical axis is not necessary and / or can be avoided.

Preferably, by adjusting the angle of the optical paths, the object plane can be brought to a working plane.

The working plane is the area in which the surgeon

for example, carries out an operative activity and which is to be mapped.

This allows easy setting and imaging of an object, regardless of its dimension.

Preferably, the angles of the optical paths to the optical axis are adjustable as a function of a distance of the receiving device to the object. Preferably, the distance is automatically detected.

An automatic detection of the distance makes it possible to set the angles of the optical paths, for example in a previously defined dependency. For example, it is conceivable to maintain a predefined offset between work plane and object plane, no matter which

Dimension has the object or what distance between the object and the receiving device actually exists.

The receiving unit of the receiving device is preferably such rotatable and / or pivotally mounted that at a

Rotation and / or pivoting of the receiving unit, the optical axis maintains an intersection with the optical paths. This allows independent positioning of the

Recording device, with predefined settings

to be kept. Working level and object level remain in relation to each other.

The image plane of the recording device can be mounted rotatably and / or pivotably such that the angles of the optical paths to the optical axis can be adjusted by rotating or pivoting the image plane.

This allows easy configuration of the

Cradle. A lightweight construction with few parts is also possible. Such a rotary and / or

Swiveling storage also makes it possible to have one

comply with the predefined intersection with the optical axis.

Preferably, the image planes are for adjusting synchronous angles of the optical paths to the optical axis

motion coupled.

Motion coupled means that only one of two angles has to be adjusted, and the other angle automatically

is set according to the first angle. This is possible for example via mechanical components such as linkage or the like. Also, electronic components such as servomotors are conceivable.

This allows synchronous adjustment of the optical paths while maintaining an intersection with the optical axis. It is also possible, a predetermined offset or a

Maintain angular deviation of the optical paths while adjusting the angles. Another aspect of the invention relates to a

Obj ektvergrösserer comprising two or more receiving devices for imaging an object along an optical axis with a receiving unit with two optical paths, each having an angle to the optical axis. Such an obj ectvergrösserer preferably comprises two or more

Receiving devices as described herein. The angle between the optical axes of the pickup devices is adjustable.

An adjustable angle between the optical axes

allows the imaging of an object in several perspectives. The recording devices can thus be controlled individually.

Preferably, the angles of the optical paths are

Recording unit to the optical axis of the recording device adjustable. This also allows the independent setting of the

optical paths. This is of particular advantage since

Typically, the area in which surgery is not flat and, for example, may have different distances to Obj ektvergrösserer. Typically, the surgeon and assistant perform different during surgery

Activities, for example, different areas of the surgical area in the respective focus of the respective

Engineer. Assistant and surgeon can thus

make individual settings and / or incorporate preferences. Both for the surgeon and for the assistant are thus independent working positions

feasible. Preferably, the receiving units of the obj ektvergrösserers are decoupled from each other and particularly preferably rotatably and / or pivotally mounted. This allows for independent adjustment and movement of the receiving units as described herein.

Preferably, a receiving device or a

Obj ektvergrösserer as described herein a

Image reproduction device for reproducing the image of the

Object. Preferably, an electrical signal generated in the image plane and comprising the image of the object is forwarded to the image reproduction device or is

routable. The electrical signal can preferably be generated by the recording unit.

The generation of an electrical signal in the image plane

allows the transfer of the image also on more

Distances or distances. A direct line of sight, as in conventional microscopes, is also not necessary. Elaborate and expensive optical components such as lenses or prisms to pass on the image are not necessary or can be avoided. The electrical signal can be forwarded, for example, in electrical lines, a conversion to an optical signal or a wireless signal with a wireless transmission is also conceivable.

The cradle or obj ektvergrösserer and

In particular, the image display device can for

Stabilization of the image have an image stabilizer.

Bumps or vibrations which occur at the receiving device or at the obj ectvergrösserer can thus be reduced or be suppressed or filtered. Such image stabilizers can be manufactured in a manner known to the person skilled in the art.

Each recording unit of the recording device or the

Obj ektvergrösserers can a picture reproduction device

be assigned. The receiving unit may be arranged or may be arranged such that an axis perpendicular to an imaging plane of the image display device extends in a plane perpendicular to a plane defined by the optical paths on a plane bisecting the optical paths

Thus, the image display device and the recording device are arranged in a predefined position relative to one another. This also allows the receiving device,

To arrange recording unit or the image plane according to the position of the image display device. For example, if the surgeon moves from one position to a next position, shifting the imaging device or rotating it around the area to be operated, it is possible for the imaging unit to also rotate with it. In the

Image display device is in this case an angle true

Image shown. A direct connection with the

Receiving device or Obj ectvergrösserer is not necessary. The repositioning and setting up of the receiving device or the Obj ektvergrösserers with respect to the object can be omitted.

On the image display device is preferably a

Partial section of the entire image can be displayed. This allows, for example, only a portion of the image in an enlarged view on the

Play back the image display device. The image reproduction apparatus may be, for example, spectacles with two monitors, on each of which the image of a single recording unit or a single image plane is reproduced. Thus, stereoscopic vision is possible. Preferably, the partial cutout is pivotable and / or displaceable as part of the entire image on the image display device. The clipping can be both physically in the area of the image plane and virtually in the area of

Image playback device can be moved or swiveled.

This allows different detail views of an image, regardless of how the recording device or the

Obj ectvergrösserer is set in relation to the object. The obj ektvergrösserer or the receiving device must not be brought out of position.

The partial section can, for example, depending on a polar position (azimuth or polar angle) of the

Image reproduction device to be adjustable to the optical axis. Preferably, image display devices and the partial cutout are motion coupled or motion coupled.

This allows the pivoting or positioning of the partial section depending on the position of the

Image reproduction device, without having to recondition the receiving device or the obj ektvergrösserer and the values set therewith for each shift. The Obj ektvergrösserer or the recording device can

preferably be designed such that the image plane is activated in each case only in the region of the partial section.

Preferably, the image plane has a resolution of at least megapixels (Mpx) and preferably 2 Mpx, and more preferably more than 4 Mpx.

This allows a detailed representation of the object.

The image plane may have a recording range of wavelengths of light 200 nm to 1000 nm.

This allows both the recording in a wide range of light as well as the representation of details not visible to the human eye.

The image plane may have multiple photosensitive elements with different pickup areas for different

Have wavelengths. Preferably, the receiving areas are divided into visible light and non-visible light, wherein the non-visible light above or below the visible wavelength range of the light can be divided into corresponding areas.

This allows the use of photosensitive elements, which in higher wavebands a higher

Have sensitivity.

Other embodiments and possible designs and

Contexts of the invention as described herein are given below: As explained herein, optics may be disposed in the receiving devices. Such an appearance exists

preferably from two or more completely separate

Beam paths, in the present case also called optical paths through which the object can be viewed by a certain angle in relation to the beam path from at least two different directions.

This divergence, i. The angles of the optical paths, in the present case also called optical paths, is an important property of the obj ektvergrösserers and is significantly responsible for the comfort and the stereo image quality and is a major advantage of the device, as controllable or controllable angle of the beam paths before the natural divergence of the human eyes everything while seeing in a short distance under im imitate or adapt to it.

The size of the divergence or the angles of the separate beam paths, through which the object from two directions or with more than two beam paths of several different

Directions is optionally set and / or controlled and / or regulated.

The electronic image sensors may optionally be movable in the direction of the object, and be displaceable, for example, with electric motors in the direction of the object.

The obj ektvergrösserer or the receiving device may be formed with one or more light sources, which depending on the application of Obj ektvergrösserers in the optical

Beam paths or can be arranged close to the optical beam paths. The light sources can be designed as xenon, halogen and / or LED light sources, and can be realized as light sources in the visible as well as outside the visible range depending on the application.

The image sensor, in the present case also called optical element, preferably consisting of one and / or more

electronic sensors can be arranged so that he

geometrically e.g. 2 or 4 optical channels, in the present case optical paths, images and transmits them to at least one display and / or a viewing unit. In this case correspond

usually 2 optical channels a stereo image and 4 optical channels two stereo images for example, 2 observers with different images of the object and / or different image positions, ie positions to the object. The image sensor (s) may be designed and optionally connected with further means such that it recognizes visible images and / or invisible images below and / or above the human-visible region, for example in the UV and IR regions, absorbs and transmits. The inventive object magnification device with the electronic image transmission for images in the non-visible area and for images in the visible range is preferably carried out with a sensor technology or with multiple sensor technologies in a small space and forms these preferably on one and the same viewing units and displays ,

This will be pictures - in the eyes of the human eye

invisible area - for the human eye in the

Displays and / or viewing units made visible. The displays and viewing units can be designed in such a way that images can optionally also be superimposed in the displays and / or viewing units. The Transmission of image data can be wireless and / or cable.

From the image sensor or from the image sensors and their integrated image sensor electronics, the data can be forwarded to one or more external devices for storage, processing and / or reproduction. An internal storage and processing is also possible. An obj ektvergrösserer according to the invention must not be mechanically connected to the object viewing unit, so it can be discontinued by the user. The position and above all the distance of the device to the object can be changed without the user having to change his position. This gives the user more options when using the obj ectvergrösserers and can change the working distance and the position to the object almost arbitrary. He can also set down to the object in not immediate proximity to the object place, which is not possible with previous optical magnification devices.

The recorded and transmitted images can be rotated mechanically or electronically about the optical axis of the obj ektvergrösserers, according to the viewing direction of the observer to the object and are mapped according to this position in the display and / or viewing unit. This allows the user at a certain angle to

Place obj ectvergrösserer, with the Obj ektvergrösserer shows the image from its position while the user expects and receives the image from its position, which does not coincide with the position of the Obj ektvergrösserers but with the aforementioned line of sight. This rotational positioning of the transferred images to the position of the user can be done manually and / or automatically, for example by means of sensors which determine the position of the viewer and / or the position of the display or the

Viewing unit recognizes and the picture accordingly

positioned (position sensor). The rotational positioning of the transmitted images can be performed manually and / or automatically in the object magnifier for all users. Is the

Obj ektvergrösserer designed so that it can take two or more images or stereo images, transmit and display, each viewer can select the image source for his display and / or his viewing unit, in this case also image display device. The device can be optionally integrated, for example

Sensors such as distance, inclination, angle and

Be equipped acceleration sensors. These sensors can be used to calculate paths, position changes, velocities and accelerations of the obj ect enlargement device.

Likewise, the obj ectvergrösserer optionally with distance sensors for three-dimensional position determination in space and to recognize the image and object plane and thus the

Working distance be formed. Thus, an automatic sharpness adjustment based on the working distance determination can be realized.

Obj ektvergrösserer and / or reflected light object magnification devices as described herein can be designed such that the electronic image sensors are designed to be movable in the direction of the object, for example slidably

Electric motors in the direction of the object, and / or the separate beam paths of the optical system and / or the associated Image sensors, through which the object is viewed from two or more different directions, are moved so that the angles of the beam paths are adjusted and / or controlled and / or regulated.

On the basis of figures, which represent only embodiments, the invention will be explained in more detail below. 1 shows a schematic view of a

Recording device according to the invention

Figure 2: A schematic view along the arrow

A of Figure 1 of the receiving device of Figure 1

Figure 3a: a schematic view of a

Obj ektvergrösserers inventive, Figure 3b: another schematic view of a

Obj ektvergrösserers according to the invention

Figure 4: a schematic view of the

Obj ektvergrösserers of Figure 3a along the arrow B of Figure 3a,

Figure 5: a schematic representation

Image reproduction device, Figure 6: a schematic representation of a

Image reproduction device and a

Cradle, Figure 1 shows a schematic representation of a

Recording device 1. The recording device 1 has an optical axis 10. Further elements are in two

Execution shown. For the sake of simplicity, only one of the elements is described and designated in each case. The receiving device has a receiving unit 11. The recording unit 11 is associated with an optical path 111 or 112. An image plane 110 is also assigned. In the optical path 111 or 112, an optic 12 can be shown as a dashed line, as shown here

are located. This optics 12 may for example consist of one or more lenses and a protective glass. In the present case, however, the optics 12 only has a protective glass. Shown are two optical paths 111 and 112, which each have an angle and an angle β to the optical axis 10. The two angles and ß are the same size here. The arrow Q shows the pivotability of the receiving device 1, wherein it is clear that the angle and ß and the intersection point 13 of the optical paths 111 and 112 with the optical axis 10 does not change during pivoting in the direction of arrow Q. Also shown is a pivot arrow N, which indicates that the receiving unit 11 with the image plane 110 and - if available - a lens 12 can be pivoted together, so that the angle changes. In the present case, the two recording units are coupled together, so that angle and ß only change together. By adjusting the angle and β, it is possible to bring an object plane 2 into conformity with a working plane 3.

Figure 2 shows a view of the device of Figure 1 in a schematic representation along the arrow A of Figure 1. The receiving units 11 are indicated within the receiving device 1. In the region of the center of the recording device is the optical axis 10, which for better Representation is indicated as a circle. The receiving units 11 are pivotable and rotatable along the indicated arrow S about the optical axis 10. Another arrow P also indicates the pivotability of the receiving device 1 about its optical axis 10. It is also possible, the

Receiving units 11 to form a rotatable inside them center. Within the receiving device 1, the receiving units 11 are shown, which are additionally referred to herein with L and R.

FIG. 3a shows an obj ect magnifier 100 with two

Receiving devices 1, wherein the two receiving devices 1 are arranged opposite to each other. The optical axes 10 of the recording devices 1 meet in one

Intersection 14. Between the optical axes, the angle γ is shown, which is adjustable in the present case. The

Receiving devices are pivotable along the arrow V.

In the variant of the object magnification device of Figure 3a, the divergence angle can be changed by control or regulation by only the image sensors 110 are changed in their angle to the optical axis 10.

FIG. 3b shows the obj ectvergrösserer of Figure 3, wherein the recording devices 1 is shown in a rotated by 90 ° about its optical axis 10 representation. The optical axes 10 and the optical paths 111 and 112 of the respective units meet together at an intersection. FIG. 4 shows a schematic view of the obj ectvergrösserers of Figure 3a in a schematic view along the arrow B of Figure 3a. Shown are the two schematically

Receiving devices 1, which around a virtual center (indicated by an X) are arranged. For better

Illustration is only one of the recording devices designated. The receiving device 1 can be rotated or pivoted along the arrow T about the virtual center X. By the arrows U is indicated that the receiving units 11 can also rotate about its own axis. Further

Adjustments, as shown in Figure 2, are also possible Figure 5 shows a schematic representation of a

Image display device 4. The image reproduction device 4 has two displays, which are labeled L and R. These displays show the image of the optical paths. These two displays L and R together define a plane through which an axis AI runs at right angles.

FIG. 6 shows a schematic view of a

Recording device 1 in conjunction with a

Image reproduction device 4. The receiving device has two receiving units 11, which in the present case with L and R

are designated. An optical path 111 and 112 extends through the recording units. A first plane E1 is shown through the optical paths. The optical paths have a

Angle bisector, through which a second plane E2 extends. The second plane E2 is perpendicular to the first plane El. As explained with reference to FIG. 5, the image reproduction device 4 extends an axis AI, which in the present FIG. 6 is arranged on the plane E2 or lies in the plane E2. An image of the receiving units 11 / L / R is shown in the sequence corresponding to a right-angled representation on

Image display unit 4 shown. Image display unit 4 and recording device 1 are coupled to each other accordingly. With reference to FIGS. 4 and 6, it is thus conceivable for a first image reproduction unit 4 to be coupled to a first recording device 1 and a second image reproduction unit 4

Image display unit 4 with a second recording device 1. However, both coupled systems are independent of each other. This makes it possible, according to the positioning of the

Image reproduction device 4, the recording devices. 1

independently turning or panning.

Claims

Recording device (1) for imaging an object, comprising a recording unit (11), wherein the object is imaged substantially on two optical paths (111, 112) each with an angle (, β) to the optical axis (10), wherein each optical Path (111, 112) is associated with an image plane (110), which image plane (110) preferably one or more photosensitive elements (112), preferably CCD sensors or CMOS sensors, characterized in that the angles (, ß) the optical paths to the optical axis (10) are adjustable.

A recording device (1) according to claim 1, wherein each optical path (111, 112) has one or more optical paths

Components (12), preferably protective glasses or lenses, are assigned.

Receiving device (1) according to claim 1 or 2, characterized in that the optical paths (111, 112) have an intersection with the optical axis (10), which intersection defines an object plane (2).

Receiving device (1) according to claim 3, characterized

characterized in that by adjusting the optical paths

(111, 112) the object plane (2) on a working plane

(3) can be brought.

Receiving device (1) according to one of claims 1 to 4, characterized in that the angle (, ß) of the

optical paths (111, 112) to the optical axis (10) in dependence on a distance of the receiving device to Object are adjustable, the distance is preferably detected automatically.

6. receiving device (1) according to one of claims 1 to 5, characterized in that the receiving unit (11) is rotatably and / or pivotally mounted such that upon rotation and / or pivoting of the receiving unit (11) the optical axis ( 10) an intersection with the

maintains optical paths (111, 112).

7. Recording device (1) according to one of claims 1 to 6, characterized in that the image plane (110) are rotatably and / or pivotally mounted such that the angle (, ß) of the optical paths (111, 112) for optical Axis (10) by turning or pivoting of the image plane (110) are adjustable.

8. Obj ectvergrösserer (100), comprising two or more

Recording devices (1) for imaging an object along an optical axis (10) with a

Receiving unit (11) with two optical paths (111, 112) each having an angle (, ß) to the optical axis (10), preferably according to one of claims 1 to 7, characterized in that the angle (γ) between the optical axes (10) is adjustable.

9. obj ektvergrösserer (100) according to claim 8, characterized

in that the receiving units (11) are decoupled from one another and are preferably rotatably and / or pivotably mounted.

10. receiving device (1) or Obj ectvergrösserer (100) according to one of claims 1 to 9, comprising a Image reproduction device (4) for reproducing the image of the object, wherein preferably an electrical signal generated in the image plane (110), which image of the image

Object is, is forwarded to the image display device (2) or can be forwarded.

Receiving device (1) or obj ektvergrösserer (100) according to claim 10, characterized in that the

Image reproduction device (4) for stabilizing the

Image has an image stabilizer.

Receiving device (1) or obj ectvergrösserer (100) according to any one of claims 10 or 11, characterized in that each receiving unit (11) has a

Image reproduction device (4) is assigned, wherein

Preferably, the receiving unit (11) is arranged or can be arranged such that an axis perpendicular to an imaging plane (20) of the image display device (4) in a plane perpendicular to a plane defined by the optical paths (El) on a bisecting line of the optical paths plane (E2) extends.

Receiving device (1) or obj ektvergrösserer (100) according to any one of claims 10 to 12, characterized in that on the image display device (4) has a partial

Section of the entire image is displayed.

Receiving device (1) or Obj ektvergrösserer (100) according to claim 13, characterized in that the partial

Section as part of the entire image on the

Image reproduction device (4) pivoting and / or

is displaceable.

15. receiving device (1) or obj ectvergrösserer (100) according to claim 14, characterized in that the partial section depending on a polar position of

Image reproduction device (4) to the optical axis (10) is adjustable and is preferably coupled or bewegungskoppelbar movement.

16. Recording device (1) or Obj ectvergrösserer (100) according to one of claims 1 to 15, characterized in that the image plane (110) has a resolution of at least 1 Mpx, preferably 2 Mpx and more preferably at least 4 Mpx.

17. Recording device (1) or Obj ectvergrösserer (100) according to one of claims 1 to 16, characterized in that the image plane (110) has a recording range of the wavelengths of 200nm to lOOOnm.

18. receiving device (1) or Obj ectvergrösserer (100) according to one of claims 1 to 17, characterized in that the image plane (110) comprises a plurality of photosensitive elements (112) with different receiving areas, wherein the receiving areas preferably in visible light and not visible Light above and not visible light are divided below the visible light.