CN1320388C - Light splitting apparatus for parallel type laser level gauges - Google Patents
Light splitting apparatus for parallel type laser level gauges Download PDFInfo
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- CN1320388C CN1320388C CNB2004100488223A CN200410048822A CN1320388C CN 1320388 C CN1320388 C CN 1320388C CN B2004100488223 A CNB2004100488223 A CN B2004100488223A CN 200410048822 A CN200410048822 A CN 200410048822A CN 1320388 C CN1320388 C CN 1320388C
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- eyeglass
- lay
- grain
- lens barrel
- block form
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Abstract
The present invention discloses a light splitting device of a parallel laser level instrument, which comprises two optical systems, wherein the two optical systems are arranged on the same level in parallel in opposite directions; each optical system comprises a laser diode, an integrated light lens, a diffusion lens, a light splitting prism and a housing for holding the assemblies; the integrated light lens and the diffusion lens are positioned between the laser diode and the light splitting prism. The present invention sets the light splitting prism at the back, the light splitting is carried out by the light splitting prism to form a fan-shaped light beam plane larger than 180 DEG after integrated and diffused, and thereby, the present invention can ensure that two paths of vertical light beams are crossed to form a straight line in the horizontal direction, and a circumference light beam plane of 360 DEG can be formed by adopting the two optical systems.
Description
[technical field]
The present invention relates to a kind of light-dividing device of block form laser level instrument, especially about a kind of light-dividing device of the block form laser level instrument that the laser diode emergent ray can be converted to 360 degree ring-like light horizontal outgoing and the laser level instrument of using this light-dividing device.
[background technology]
In the building engineering construction process, on different walls, be difficult to determine same surface level to have only the method that adopts dipstick metering in the past, the horizontal line that draws on the wall roughly, this method is the slow and out of true of speed not only, makes construction quality can not get guaranteeing; Perhaps utilize the isobaric relation of liquid in the elongated water pipe, obtain contour same surface level mark on different walls, but this method is difficult to be applied on the large-scale operational base, people's invention level meter is in order to indicate horizontal datum for this reason.
The mode that existing level meter indicates horizontal datum mainly contains two kinds of direct outgoing formula and optically-active formulas.Wherein directly the outgoing formula is to adopt prismatic mirror that laser beam is scattered to bigger angle in the horizontal direction to form a word light outgoing, and makes it be radiated at the body surface of required sign.The disadvantage of this mode is through outgoing beam horizontal direction angle behind the prismatic mirror limited, it is a word light limited length of outgoing, for in particular cases, needing that determinand is carried out longer horizontal datum indicates, or need 360 to spend when indicating in full week, then need repeatedly to indicate or will be by the realization that combines of many arrangements of mirrors group, above-mentioned dual mode has shortcoming not easy to operate or that unitized construction is numerous and diverse.Another kind of optically-active mode is that the laser hot spot high speed rotating that will be point-like forms horizontal covering of the fan, utilizes the characteristics of human body optic nerve persistence of vision, and this luminous point can form linear light spot always in the distant place of the vertical surfaces of revolution, reaches the sign purpose.The shortcoming of this mode is that the rotation of mechanism's part can make system produce vibrations, has influence on the precision of system, and needs power during rotation, and the manufacturing cost of instrument will be improved, and it is big that volume becomes.
For obtaining the light of the horizontal outgoing of 360 degree ring-types, by a kind of Known designs is that four groups of identical direct outgoing formula optical system are formed a laser level instrument, each optical system is 90 degree mutually and puts in same surface level, each optical system comprises a laser diode (LD), lay the grain eyeglass and column eyeglass, the light that is produced by laser diode produces the emergent ray of horizontal direction dispersion angle greater than 90 degree through lay the grain eyeglass and column eyeglass, by position and the inclination angle of adjusting four groups of optical system, can be integrated into 360 degree outgoing to four groups of horizontal emergent raies.Yet this class known design need adopt four laser diode and four groups of optical system, increase the cost of product, and need in the processing procedure four groups of optical system are adjusted, cause the complexity of assembling and difficulty higher, time-consuming, be unfavorable for promoting production efficiency.
In addition, the applicant of this case once proposed the application for a patent for invention case of No. 093104690 " block form laser level instrument " at TaiWan, China on February 24th, 2004, be to adopt two groups of identical direct outgoing formula optical system to form a light-dividing device in this case, these two groups of optical system are 180 degree and put in same surface level, each optical system comprises a laser diode, one Amici prism and two covers are lay the grain eyeglass and the column eyeglass that 90 degree are put mutually, the light that is produced by laser diode is through Amici prism, it is vertical mutually that lay the grain eyeglass and column eyeglass can form the two-way direction, level is to the light of big 90 degree of dispersion angle, by position and the inclination angle of adjusting two groups of optical system, four tunnel horizontal emergent raies are integrated into 360 degree outgoing.Though be that two groups of optical system are only used in this design, but still need quadruplet lay the grain eyeglass and column eyeglass, thereby still increase cost of products, and also need complicated assembling and adjustment process on producing, be unfavorable for promoting production efficiency.
In view of this, be necessary in fact to provide that a kind of cost is low, volume is little and light-dividing devices simple in structure but that can produce 360 degree emergent raies carry out multi-direction circumference level for laser level instrument and indicate.
[summary of the invention]
The object of the present invention is to provide a kind of simple in structure, volume is little and cost is low, can produce the light-dividing device of 360 degree emergent raies with the block form laser level instrument that carries out multi-direction circumference level and indicate, and the laser level instrument of using this light-dividing device.
The objective of the invention is to be achieved through the following technical solutions: the light-dividing device of block form laser level instrument comprises two optical system, these two optical system are opposite in placement arranged side by side of same surface level and direction, this each optical system comprises that a laser light source, a lay the grain eyeglass, a diffusion eyeglass, an Amici prism reach in order to accommodate the shell of aforementioned components, and wherein this lay the grain eyeglass and diffusion eyeglass are between this laser light source and Amici prism.
The light-dividing device of block form laser level instrument of the present invention, wherein the lay the grain eyeglass of each optical system and diffusion eyeglass are to arrange successively to Amici prism from laser diode along same optical axis direction.
The light-dividing device of block form laser level instrument of the present invention, wherein the lay the grain eyeglass is a positive lens.
The light-dividing device of block form laser level instrument of the present invention, wherein spreading eyeglass is a column non-spherical lens.
The light-dividing device of block form laser level instrument of the present invention, wherein each optical system also comprises a lens barrel, laser diode and lay the grain eyeglass are to be disposed at coaxially in this lens barrel, thereby form a light source module.
Compared with prior art, effect of the present invention is: light-dividing device of the present invention need not rotating mechanism, can improve precision and stability.The present invention utilizes two identical optical system, and first lay the grain, diffusion form the fan beam plane of spending greater than 180 by the Amici prism beam split again, can guarantee that the two-way normal beam intersects in line in the horizontal direction, reduces the adjustment process in producing.And, only need two optical system can form the circumference beam plane of 360 degree, reach the effect that the circumference level indicates, and each optical system only needs a laser diode, a lay the grain eyeglass, a diffusion eyeglass and an Amici prism, the number of components is few, cost is low, and small product size is little, adjusting mechanism is few, assembling is convenient, helps enhancing productivity.
[description of drawings]
Fig. 1 is the vertical view of the light-dividing device of block form laser level instrument of the present invention.
Fig. 2 is the stereographic map of single optical system of the light-dividing device of block form laser level instrument of the present invention.
Fig. 3 is the vertical view of single optical system shown in Figure 2.
Fig. 4 is the horizontal direction cut-open view of single optical system shown in Figure 2.
Fig. 5 is the cut-open view of the light source module of single optical system shown in Figure 2.
Fig. 6 is the vertical direction cut-open view of single optical system shown in Figure 2.
Fig. 7 is the index path of single optical system shown in Figure 2.
[embodiment]
See also Fig. 1, the light-dividing device of block form laser level instrument of the present invention is included in same surface level and places side by side and two opposite optical system 100 of direction, because the composition member and the principle of work of these two optical system 100 are identical, thus below be that example explains only with one group of optics.
See also Fig. 1 to Fig. 6, an optical system 100 in the light-dividing device of block form laser level instrument of the present invention, it comprise a laser light source 1, a lay the grain eyeglass 2, a diffusion eyeglass 3, an Amici prism 4 and by lower cover 5 and loam cake 6 form in order to accommodate the shell of aforementioned components, in concrete enforcement, lay the grain eyeglass 2 may be selected to be a positive lens, and diffusion eyeglass 3 may be selected to be a column non-spherical lens.Aforementioned laser diode 1 and lay the grain eyeglass 2 are to be disposed in the lens barrel and to form light source module 10.As Fig. 3, Fig. 4 and shown in Figure 5, this light source module 10 comprises first lens barrel 11 and second lens barrel 12, laser diode 1 is an end that is installed in first lens barrel 11, second lens barrel 12 has the aperture difference but identical first hole 121 and second hole 122 of axial line, wherein the external diameter of the aperture in first hole 121 and first lens barrel 11 is complementary, this first lens barrel 11 is to be contained in this first hole 121 and can be in wherein moving axially to adjust the position, the aperture in second hole 122 then is complementary with the size of lay the grain eyeglass 2, in order to hold and this lay the grain eyeglass 2 of fixing.Hole wall in first hole 121 of this second lens barrel 12 is provided with trip bolt 123, when first lens barrel 11 moving when adjusting laser diode 1 and make it be in focusing position in first hole 121, can utilize trip bolt 123 that first lens barrel 11 is fixed with the distance of 2 on lay the grain eyeglass.Adopt this light source module 10, can guarantee laser diode 1 and the right alignment of lay the grain eyeglass 2 and accurately focusing.
See also Fig. 2, Fig. 3, Fig. 4 and Fig. 6, an end of the lower cover 5 of optical system 100 is formed with a cavity volume 53, in order to hold light source module 10.Be provided with first seat 51 and second seat 52 successively adjacent to these cavity volume 53 parts, respectively in order to settle diffusion eyeglass 3 and Amici prism 4.And loam cake 6 is respectively equipped with trip bolt 61,62 corresponding to first seat 51 of lower cover 5 and the position at second seat 52, and is distributed with three adjustment screws 64 around trip bolt 62.Light source module 10 is placed cavity volume 53 places of lower cover 5 and uses set bolt 13 fixing, diffusion eyeglass 3 and Amici prism 4 are positioned over respectively in first seat 51 and second seat 52 of lower cover 5, wherein put a rubber blanket 7 in Amici prism 4 below pads, its elasticity of mat provides the adjustment space of this Amici prism in vertical direction.Loam cake 6 is assembled to lower cover 5 and fixing and form the shell of optical system 100 with set bolt 63, wherein, on branch light direction, offers the optical channel that connects respectively for beam projecting in the end wall at this shell rear portion and sidewall corresponding to Amici prism 4. Trip bolt 61,62 is screwed in and fix this diffusion eyeglass 3 and Amici prism 4 respectively, finely tune the front and back position of first lens barrel 11 in second lens barrel 12, make horizontal emergent ray the thinnest, fix first lens barrel 11 in a specified distance (for example ten meters places); Pass through to adjust three on the loam cake 6 verticality of adjusting screws 64 with the reflecting surface of adjustment Amici prism 4 then, and make reflection ray become horizontal line, promptly finish the assembling and the adjustment of optical system 100.
The principle of the light-dividing device of block form laser level instrument of the present invention as shown in Figure 7, the light of laser diode 1 emission forms horizontal light beam through 2 transmissions of lay the grain eyeglass, to be column non-spherical lens 3 with light level evenly expand to spend 100 to the angle of divergence more injects Amici prism 4 by diffusion eyeglass 3, through Amici prism 4 reflections and refraction, form vertical mutually and each the horizontal light of two bundles greater than 90 degree of the angle of divergence of exit direction, each integrates this vertical mutually and angle of divergence greater than the two-beam lines of 90 degree and forms the horizontal lines of the angles of divergence greater than 180 degree.As shown in Figure 1, identical and put the opposite optical system of direction 100 with two structures, the light-dividing device of block form laser level instrument of the present invention can produce the circumference ring-type horizon light lines of one 360 degree.
Because the light-dividing device of block form laser level instrument of the present invention need not the effect that rotating mechanism can be reached the horizontal emergent ray of 360 degree,, therefore can improve precision and stability without any vibration effect.The present invention utilizes two identical optical system, with the Amici prism postposition, be that first lay the grain, diffusion form the fan beam plane of spending greater than 180 by the Amici prism beam split again, can guarantee that the vertical light of two bundles intersects in line in the horizontal direction, reduces the adjustment process in producing.And, only need two optical system can form the circumference beam plane of 360 degree, reach the effect that the circumference level indicates, and each optical system only needs a laser diode, a lay the grain eyeglass, a diffusion eyeglass and an Amici prism, component count is few, cost is low, and small product size is little, adjusting mechanism is few, assembling is convenient, helps enhancing productivity.
Claims (20)
1. the light-dividing device of a block form laser level instrument, comprise two optical system, these two optical system are opposite in placement arranged side by side of same surface level and direction, each optical system includes laser light source, the lay the grain eyeglass, the diffusion eyeglass, Amici prism and be provided with cavity volume in order to accommodate the shell with the above-mentioned member of fixing, it is characterized in that: described lay the grain eyeglass and diffusion eyeglass are between described laser light source and Amici prism, lay the grain eyeglass and diffusion eyeglass are to discharge successively to Amici prism from laser light source along same optical axis direction, wherein said lay the grain eyeglass is the position of being located at contiguous described laser light source along the beam projecting direction of laser light source, and described diffusion eyeglass is along the position of being located at contiguous described lay the grain eyeglass through the beam projecting direction of lay the grain eyeglass transmission.
2. the light-dividing device of block form laser level instrument as claimed in claim 1 is characterized in that: described laser light source is a laser diode.
3. the light-dividing device of the described block form laser level instrument of claim 1, it is characterized in that: described lay the grain eyeglass is a positive lens.
4. the light-dividing device of block form laser level instrument as claimed in claim 1 is characterized in that: described diffusion eyeglass is a column non-spherical lens.
5. the light-dividing device of block form laser level instrument as claimed in claim 1 is characterized in that: described each optical system also includes lens barrel, and described laser light source and lay the grain eyeglass are to be disposed at coaxially in this lens barrel, and form a light source module.
6. the light-dividing device of block form laser level instrument as claimed in claim 5 is characterized in that: described lens barrel comprises first lens barrel and second lens barrel, and described laser light source is to be located in first lens barrel.
7. the light-dividing device of block form laser level instrument as claimed in claim 6, it is characterized in that: described second lens barrel has the aperture difference but identical first hole and second hole of axial line, described first lens barrel is to be contained in movably in described first hole, and the lay the grain eyeglass then is immobilizated in described second hole.
8. the light-dividing device of block form laser level instrument as claimed in claim 7 is characterized in that: the hole wall in first hole of described second lens barrel is provided with the trip bolt in order to fastening described first lens barrel.
9. the light-dividing device of block form laser level instrument as claimed in claim 8, it is characterized in that: described shell comprises loam cake and lower cover, and described lower cover is provided with successively in order to the cavity volume that holds described light source module and respectively in order to accept first seat and second seat of described diffusion eyeglass in location and Amici prism.
10. the light-dividing device of block form laser level instrument as claimed in claim 9 is characterized in that: described loam cake is respectively equipped with trip bolt corresponding to first seat of described lower cover and the position at second seat.
11. the light-dividing device of block form laser level instrument as claimed in claim 10 is characterized in that: described loam cake is laid with some adjustment screws corresponding to the position at second seat of described lower cover.
12. the light-dividing device of block form laser level instrument as claimed in claim 11 is characterized in that: second of described lower cover is positioned at the Amici prism below and is lined with rubber blanket.
13. block form laser level instrument, it includes a light-dividing device, this light-dividing device comprises two optical system, described two optical system be on same surface level, place side by side and direction opposite, it is characterized in that: described each optical system includes a laser light source, one lay the grain eyeglass, one diffusion eyeglass, one Amici prism reaches in order to accommodate the shell of aforementioned components, wherein said lay the grain eyeglass and diffusion eyeglass are between this laser light source and Amici prism, lay the grain eyeglass and diffusion eyeglass are to discharge successively to Amici prism from laser light source along same optical axis direction, wherein said lay the grain eyeglass is the position of being located at contiguous described laser light source along the beam projecting direction of laser light source, and described diffusion eyeglass is along the position of being located at contiguous described lay the grain eyeglass through the beam projecting direction of lay the grain eyeglass transmission.
14. block form laser level instrument as claimed in claim 13 is characterized in that: described laser light source is a laser diode.
15. block form laser level instrument as claimed in claim 14 is characterized in that: described lay the grain eyeglass is a positive lens.
16. block form laser level instrument as claimed in claim 15 is characterized in that: described diffusion eyeglass is a column non-spherical lens.
17. as claim 13 or 16 described block form laser level instruments, it is characterized in that: described each optical system also includes lens barrel, described laser light source and lay the grain eyeglass are to be disposed at coaxially in this lens barrel, and form a light source module.
18. block form laser level instrument as claimed in claim 17 is characterized in that: described lens barrel comprises first lens barrel and second lens barrel, and described laser light source is to be located in first lens barrel.
19. block form laser level instrument as claimed in claim 18, it is characterized in that: described second lens barrel has the aperture difference but identical first hole and second hole of axial line, described first lens barrel is to be contained in movably in described first hole, and the lay the grain eyeglass then is immobilizated in described second hole.
20. block form laser level instrument as claimed in claim 19 is characterized in that: the hole wall in first hole of described second lens barrel is provided with the trip bolt in order to fastening described first lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100488223A CN1320388C (en) | 2004-05-31 | 2004-05-31 | Light splitting apparatus for parallel type laser level gauges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100488223A CN1320388C (en) | 2004-05-31 | 2004-05-31 | Light splitting apparatus for parallel type laser level gauges |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1704796A CN1704796A (en) | 2005-12-07 |
| CN1320388C true CN1320388C (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100488223A Expired - Fee Related CN1320388C (en) | 2004-05-31 | 2004-05-31 | Light splitting apparatus for parallel type laser level gauges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1320388C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI608287B (en) * | 2012-12-05 | 2017-12-11 | 羅伯特博斯奇股份有限公司 | Laser module and scanner projector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022155917A1 (en) * | 2021-01-22 | 2022-07-28 | 欧菲光集团股份有限公司 | Transmitting module, imaging module and electronic device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5754582A (en) * | 1995-04-03 | 1998-05-19 | Momentum Laser, Inc. | Laser level |
| US5864956A (en) * | 1996-11-22 | 1999-02-02 | Dong; Dawei | Level line and limb line combination |
| US6043879A (en) * | 1998-06-01 | 2000-03-28 | Dong; Dawei | Automatic laser level |
| CN2445288Y (en) * | 2000-06-08 | 2001-08-29 | 陈嵣 | Portable laser level gauge |
| CN2447724Y (en) * | 2000-10-27 | 2001-09-12 | 彭伟文 | 360 degree laser level |
| US6539638B1 (en) * | 2000-04-27 | 2003-04-01 | Victor Pelletier | Line projecting device |
| JP2003329815A (en) * | 2002-05-16 | 2003-11-19 | Hitachi Koki Co Ltd | Bean splitter and multibeam optical system using the same, and laser marking device mounted therewith |
-
2004
- 2004-05-31 CN CNB2004100488223A patent/CN1320388C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5754582A (en) * | 1995-04-03 | 1998-05-19 | Momentum Laser, Inc. | Laser level |
| US5864956A (en) * | 1996-11-22 | 1999-02-02 | Dong; Dawei | Level line and limb line combination |
| US6043879A (en) * | 1998-06-01 | 2000-03-28 | Dong; Dawei | Automatic laser level |
| US6539638B1 (en) * | 2000-04-27 | 2003-04-01 | Victor Pelletier | Line projecting device |
| CN2445288Y (en) * | 2000-06-08 | 2001-08-29 | 陈嵣 | Portable laser level gauge |
| CN2447724Y (en) * | 2000-10-27 | 2001-09-12 | 彭伟文 | 360 degree laser level |
| JP2003329815A (en) * | 2002-05-16 | 2003-11-19 | Hitachi Koki Co Ltd | Bean splitter and multibeam optical system using the same, and laser marking device mounted therewith |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI608287B (en) * | 2012-12-05 | 2017-12-11 | 羅伯特博斯奇股份有限公司 | Laser module and scanner projector |
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| Publication number | Publication date |
|---|---|
| CN1704796A (en) | 2005-12-07 |
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