CN106773076A - Various dimensions indicate laser module and laser beam emitting device - Google Patents
Various dimensions indicate laser module and laser beam emitting device Download PDFInfo
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- CN106773076A CN106773076A CN201710203232.0A CN201710203232A CN106773076A CN 106773076 A CN106773076 A CN 106773076A CN 201710203232 A CN201710203232 A CN 201710203232A CN 106773076 A CN106773076 A CN 106773076A
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- laser
- optical lens
- various dimensions
- module
- laser beam
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0966—Cylindrical lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lasers (AREA)
Abstract
The present invention relates to laser application field technical field, laser module and laser beam emitting device are indicated more particularly, to various dimensions.Various dimensions sign laser module includes：Generating laser and optical module；The optical module is removably arranged on the laser beam issuing side of the generating laser, and the optical module is used to for the laser beam of laser transmitter projects to form various dimensions, multi-level linear laser sign.To alleviate the technical problem that presence in the prior art cannot provide various dimensions, multi-level linear laser is indicated.
Description
Technical field
The present invention relates to laser application field technical field, laser module and Laser emission are indicated more particularly, to various dimensions
Device.
Background technology
Line source is obtained in the market relies primarily on conventional laser acquisition spot light again through rod mirror or cylindrical mirror folk prescription
Wire hot spot is obtained to dissipating, or with the depth of parallelism, the dot laser hot spot of good, energy concentration gets to alloy material or glass material
On the reflection axicon lens of matter, uniform toroid hot spot is obtained using the mirror-reflection for reflecting axicon lens.Because of the ring-shaped light spot energy for obtaining
Amount is uniform, line is directly spent, width is thin and consistent, so needing the industry for indicating class to obtain extensively should in building, finishing, packaging etc.
With.
With continuing to develop for technology, the application field of laser level is also constantly expanded, and is currently needed for various dimensions, many
The linear laser sign of level, single linear light spot sign or loop laser line sign cannot meet demand.
The content of the invention
It is an object of the invention to provide a kind of various dimensions sign laser module, cannot be carried with alleviating presence in the prior art
For various dimensions, the technical problem of multi-level linear laser sign.
A kind of various dimensions sign laser module that the present invention is provided, including：Generating laser and optical module；
The optical module is removably arranged on the laser beam issuing side of the generating laser, and the optical module is used
Indicated in the laser beam of laser transmitter projects is formed into various dimensions, multi-level linear laser.
Further, the optical module includes at least one optical lens；
The optical lens middle setting has through hole, and the through hole is coaxially disposed with the optical lens.
Further, also including rod mirror；
Larger one end of bore that the rod mirror is positioned close to the optical lens, the rod mirror is used to make to pass through optical lens
The laser beam of mirror forms the line laser hot spot of certain fan angle.
Further, also including cross cylindrical mirror；
The cross cylindrical mirror includes multiple sub- minute surfaces being arranged in a mutually vertical manner, and the cross cylindrical mirror is used for laser beam
The line laser spot for forming the line laser hot spot of certain fan angle and extending along former direction.
Further, the adjacent optical lens is coaxially disposed.
Further, bore of the area at the larger end of bore of the latter optical lens less than the previous optical lens
The area at larger end.
Further, governor motion is provided between the adjacent optical lens, the governor motion is used to adjust adjacent
The distance between optical lens.
Further, what the both sides of the through hole were spaced is provided with multiple location holes；The governor motion include connecting cylinder,
Two adjusting rods and regulation spring；
The adjusting rod includes：Regulation button, gag lever post and connecting rod, the regulation button and gag lever post are separately positioned on
The two ends of the connecting rod, and the length for adjusting button is more than the length of the gag lever post；
Two adjusting rods by rotating shaft it is arranged in a crossed manner and it is described regulation spring be arranged on two tune of the adjusting rod
Between section button；
Be provided with the connecting cylinder for adjusting the connecting hole that button and gag lever post are passed through, one end of the connecting cylinder with
One in adjacent optical lenses is fixedly connected, and the other end is flexibly connected by gag lever post with another optical lens.
Further, the side of the optical lens is in 45 ° of settings.
A kind of laser beam emitting device, laser module is indicated with above-mentioned various dimensions.
The present invention provides a kind of various dimensions sign laser module；Including：Generating laser and optical module；The optics group
Part is removably arranged on the laser beam issuing side of the generating laser, and the optical module is used for laser transmitter projects
Laser beam form various dimensions, multi-level linear laser sign.Various dimensions, many cannot be provided to alleviate presence in the prior art
The technical problem of the linear laser sign of level.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the front view that a kind of various dimensions provided in an embodiment of the present invention indicate laser module；
Fig. 2 is a kind of stereogram of the optical lens of various dimensions sign laser module provided in an embodiment of the present invention；
Fig. 3 be various dimensions provided in an embodiment of the present invention sign laser module on be provided with the front view of rod mirror；
Fig. 4 is the front view for being provided with cross cylindrical mirror that various dimensions provided in an embodiment of the present invention indicate laser module；
Fig. 5 is the main view for being provided with multiple optical lenses that various dimensions provided in an embodiment of the present invention indicate laser module
Figure；
Fig. 6 is the internal structure signal of governor motion between various dimensions sign laser module provided in an embodiment of the present invention
Figure.
Icon：1- generating lasers；2- optical modules；3- rod mirrors；4- cross cylindrical mirrors；210- through holes；310- adjusting rods；
311- adjusts button；312- gag lever posts；313- connecting rods；320- adjusts spring.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the front view that a kind of various dimensions provided in an embodiment of the present invention indicate laser module.As shown in figure 1, this hair
A kind of various dimensions sign laser module of bright offer, including：Generating laser 1 and optical module 2；
The optical module 2 is removably arranged on the laser beam issuing side of the generating laser 1, the optical module
2 laser beams for being used to launch generating laser 1 form various dimensions, multi-level linear laser sign.
Wherein, the species of generating laser 1 can have various, for example：Gas laser, liquid, chemistry, semiconductor laser
The form such as device and solid state laser, as long as can realize launching laser beam.
In the present embodiment, the optical module 2 is removably arranged on the laser beam issuing side of the generating laser 1,
The laser beam that the optical module 2 is used to launch generating laser 1 forms various dimensions, multi-level linear laser sign.With
Alleviating presence in the prior art cannot provide various dimensions, the technical problem of multi-level linear laser sign.
Fig. 2 is a kind of stereogram of the optical lens of various dimensions sign laser module provided in an embodiment of the present invention.Such as Fig. 2
Shown, on the basis of above-described embodiment, further, the optical module 2 includes at least one optical lens；
The optical lens middle setting has through hole 210, and the through hole 210 is coaxially disposed with the optical lens.
Wherein, optical lens can also be to include hollow fixing pipe, transmissive mirror and reflective mirror；Reflective mirror is tapered, and
Reflective mirror one end is arranged on the circumference of fixing pipe, and on the other end of reflective mirror and the excircle of transmissive mirror, and transmissive mirror is provided with
For the through hole 210 that fixing pipe is fed through, transmissive mirror is fixedly connected with fixing pipe, when laser beam is irradiated on reflective mirror,
Partial laser, through transmissive mirror, so that laser is fed through optical lens, also, is irradiated to through reflective mirror in laser beam
When on reflective mirror, the laser of part is reflected by scintilloscope, forms the hot spot of annular.
Optical lens may also include be oppositely arranged cylinder, the first transmissive mirror minute surface, the second transmissive mirror minute surface and be arranged on
Reflective mirror between first transmissive mirror minute surface and the second transmissive mirror minute surface；First transmissive mirror minute surface and the second transmissive mirror minute surface are set
In the upper and lower ends of cylinder；The area of the first transmissive mirror minute surface minute surface is less than the area of the second transmissive mirror minute surface minute surface, reflective mirror
It is at an acute angle with laser beam to be arranged between the first transmissive mirror minute surface and the second transmissive mirror minute surface.
In the present embodiment, optical module 2 includes at least one optical lens；The optical lens middle setting has through hole
210, the through hole 210 is coaxially disposed with the optical lens.When laser beam is irradiated on optical lens, due to optical lens
Mirror is taper type, also, optical lens middle setting has through hole 210, so, when laser beam is irradiated on optical lens,
Fraction of laser light can be reflected by optical lens, partly by through hole 210 so that laser beam can form the cursor of various dimensions.
Fig. 3 be various dimensions provided in an embodiment of the present invention sign laser module on be provided with the front view of rod mirror.Such as Fig. 3
It is shown, on the basis of above-described embodiment, further, also including rod mirror 3；
Larger one end of bore that the rod mirror 3 is positioned close to the optical lens, the rod mirror 3 is used to make to pass through optics
The laser beam of lens forms the line laser hot spot of certain fan angle.
In the present embodiment, the larger one end of bore near optical lens is provided with rod mirror 3, when laser beam is fed through optics
When lens and the through hole 210 in optical lens, the part that laser beam is passed through is fed through rod mirror 3, by forming certain fan after rod mirror 3
The line laser hot spot at angle, so, laser beam can form a laser for the line of a ring one by rod mirror 3 after passing through transmissive mirror
Sign.
Fig. 4 is the front view for being provided with cross cylindrical mirror that various dimensions provided in an embodiment of the present invention indicate laser module.
As shown in figure 4, further, also including cross cylindrical mirror 4；
The cross cylindrical mirror 4 includes multiple sub- minute surfaces being arranged in a mutually vertical manner, and the cross cylindrical mirror 4 is used for laser
The line laser spot that beam forms the line laser hot spot of certain fan angle and extends along former direction.
Cylindrical mirror is designed to need to carry out the application of one-dimensional shaping to light source.They have flat-recessed and two kinds of plano-convex
Structure, both are respectively used to diverging or converging beam.Be generally used on focus incident light to line, or change image width it is high
Than.Cylindrical mirror has a spherocylindrical surface, incident ray is focused on certain dimension, and stretch image.The focal length of cylindrical mirror
Can be negative or positive, be suitable for laser rays generation or anamorphic beam shaping, to be cyclized laser output.Base material has K9, ultraviolet
Vitreous silica, CaF2, ZNSE etc., all material all may be selected not plated film or plating anti-reflection film.
In the present embodiment, the larger one end of the bore of optical lens is provided with cross cylindrical mirror 4, cross cylindrical mirror 4 includes
Multiple orthogonal sub- minute surfaces, so, when laser beam is injected on cross cylindrical mirror 4, due to the setting side of sub- minute surface
The difference of formula, also, according to the characteristic of minute surface, laser beam is formed the line laser hot spot of certain fan angle, some
Laser beam can converge it is in alignment, realize by laser beam formed the laser facula and the light through sector of sector.
Fig. 5 is the main view for being provided with multiple optical lenses that various dimensions provided in an embodiment of the present invention indicate laser module
Figure.As shown in figure 5, on the basis of above-described embodiment, further, the adjacent optical lens is coaxially disposed.
In the present embodiment, the latter lens between front and rear adjacent optical lens lens to be coaxially disposed and adjacent
And previous lens between can by the two ends of connecting tube respectively with the hollow space grafting of front and rear lens, and by colloid will
Connecting tube is Nian Jie with former and later two lens, so that front and rear lens are connected.
Wherein, previous optical lens and latter optical lens be arranged in parallel.When optical lens is two or more,
So, first annular hot spot is formed through first optical lens in laser beam, enters into second optical lens and form second
Ring-shaped light spot, when optical lens is multiple hot spots that can form multiple annulars.
On the basis of above-described embodiment, further, the area at the larger end of bore of the latter optical lens is less than
The area at the larger end of bore of the previous optical lens.
Wherein, the area at the latter larger end of optical lens bore can also be equal to the through hole 210 set on previous taper type
Diameter or the latter larger end of optical lens medium caliber diameter of the area less than the through hole 210 set on previous taper type.
In the present embodiment, the mouth of the area less than the previous optical lens at the larger end of bore of the latter optical lens
The area at the larger end in footpath.So, can ensure that the laser that laser beam is come in from the through hole 210 of optical lens can directly enter
Enter in next optical lens, it is thus possible to the annular hot spot of multiple is formed, also, laser beam quilt in transmitting procedure
The energy comparison of loss is small, and the intensity of the hot spot for forming it into is protected.
On the basis of above-described embodiment, further, governor motion is provided between the adjacent optical lens, it is described
Governor motion is used to adjust the distance between adjacent optical lenses.
Wherein, the form of governor motion can have various, for example：Telescoping mechanism is provided between adjacent optical lens
Or slide mechanism etc. is provided between optical lens.
In the present embodiment, it is detachably connected between the adjacent optical lens and apart from adjustable, so, adjacent optical lens
Between ring-shaped light spot between spacing can be adjusted, also, be to connect between adjacent optical lens, from
And, when the interval of adjacent lens is adjusted, you can the width of ring-shaped light spot is adjusted.
Fig. 6 is the internal structure signal of governor motion between various dimensions sign laser module provided in an embodiment of the present invention
Figure.As shown in fig. 6, on the basis of above-described embodiment, further, the both sides interval of the through hole 210 is provided with multiple
Location hole；The governor motion includes connecting cylinder, two adjusting rods 310 and regulation spring 320；
The adjusting rod 310 includes：Regulation button 311, gag lever post 312 and connecting rod 313, the regulation He of button 311
Gag lever post 312 is separately positioned on the two ends of the connecting rod 313, and the length of the regulation button 311 is more than the gag lever post
312 length；
Two adjusting rods 310 are arranged in a crossed manner by rotating shaft and the regulation spring 320 is arranged on two regulations
Between the regulation button 311 of bar 310；
It is provided with the connecting cylinder for adjusting the connecting hole that button 311 and gag lever post 312 are passed through, the connecting cylinder
One end is fixedly connected with adjacent optical lenses, and the other end is flexibly connected by gag lever post 312 with another optical lens.
In the present embodiment, between adjacent optical lens when adjustable range is needed, by pressing regulation button
311, regulation spring 320 is squeezed power, so that connecting rod 313 drives the gag lever post 312 to carry out contractile motion, so make regulation
Mechanism departs from optical lens, so as to adjust the distance between adjacent optical lens.
On the basis of above-described embodiment, further, the side conical surface of the optical lens is in 45 ° of settings.
In the present embodiment, the side of optical lens is in 45 ° of settings, also, the side of optical lens is preferably the conical surface, passes through
The reflection of the circular conical surface of speculum planar, reflected light is projected with incident light in 90 ° of angles, i.e., project in the horizontal direction.
Wherein, it is also provided with the optical lens of least significant end in coniform Conical Lenses, the circle of Conical Lenses
The conical surface is reflecting surface；The circular conical surface of Conical Lenses is relative with larger one end of bore of the optical lens located at optical lens end；
Diameter of the bottom surface of Conical Lenses not less than the through hole 210 of the optical lens corresponding thereto；Tapered lens can also be this
Axicon lens.Due to the circular nature of circular conical surface, the reflected light for reflecting thereon is in circular injection, so as to form ring-shaped light spot.By
In the circular conical surface of Conical Lenses and light tight, and because the basal diameter of Conical Lenses is not less than straight with adjacent optical lens
Footpath, so being projected from the bottom surface of Conical Lenses without light.Thus, incident light after the Conical Lenses of multiple optical lenses by forming
Multiple layerings, the ring of light transmission that is spatially distributed and go out.
Wherein, the side of optical lens is preferably metallic mirror surface, and plates one on the light-penetrating mirror of the larger one end of bore
Higher than the film of matrix material, be as all-trans layer refractive index film, can increase the reflectivity of optical surface.Anti-reflection film then be all-trans
Conversely, plate the film of one layer of refractive index less than matrix material on optical surfaces, as anti-reflection film can reduce optical surface to film
Reflectivity.So, the light transmission of optical lens and the effect of reflection can be increased, the operability of optical lens is improved.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of various dimensions indicate laser module, it is characterised in that including：Generating laser (1) and optical module (2)；
The optical module (2) is removably arranged on the laser beam issuing side of the generating laser (1), the optical module
(2) various dimensions, multi-level linear laser sign are formed for the laser beam for launching generating laser (1).
2. various dimensions according to claim 1 indicate laser module, it is characterised in that the optical module (2) is including extremely
A few optical lens；Optical lens is taper type；
Through hole (210) is provided with the optical lens, the through hole (210) is coaxially disposed with the optical lens.
3. various dimensions according to claim 2 indicate laser module, it is characterised in that also including rod mirror (3)；
The rod mirror (3) is positioned close to larger one end of bore of the optical lens, and the rod mirror (3) is for making to pass through optics
The laser beam of lens forms the line laser hot spot of certain fan angle.
4. various dimensions according to claim 2 indicate laser module, it is characterised in that also including cross cylindrical mirror (4)；
The sub- minute surface that the cross cylindrical mirror (4) is arranged in a mutually vertical manner including multiple, the cross cylindrical mirror is used for laser beam
The line laser spot for forming the line laser hot spot of certain fan angle and extending along former direction.
5. various dimensions according to claim 2 indicate laser module, it is characterised in that the adjacent optical lens is coaxial
Set.
6. various dimensions according to claim 5 indicate laser module, it is characterised in that the bore of the latter optical lens
Area of the area at larger end less than the larger end of bore of the previous optical lens.
7. various dimensions according to claim 6 indicate laser module, it is characterised in that set between the adjacent optical lens
Governor motion is equipped with, the governor motion is used to adjust the distance between adjacent optical lenses.
8. various dimensions according to claim 7 indicate laser module, it is characterised in that between the both sides of the through hole (210)
Every be provided with multiple location holes；The governor motion includes connecting cylinder, two adjusting rods (310) and regulation spring (320)；
The adjusting rod (310) includes：Regulation button (311), gag lever post (312) and connecting rod (313), the regulation button
And gag lever post (312) is separately positioned on the two ends of the connecting rod (313), and the length of regulation button (311) is big (311)
In the length of the gag lever post (312)；
Two adjusting rods (310) by rotating shaft it is arranged in a crossed manner and it is described regulation spring (320) be arranged on two regulations
Between the regulation button (311) of bar (310)；
It is provided with the connecting cylinder for adjusting the connecting hole that button (311) and gag lever post (312) are passed through, the connecting cylinder
One end is fixedly connected with adjacent optical lenses, and the other end is connected by gag lever post (312) with the activity of another optical lens
Connect.
9. various dimensions according to claim 8 indicate laser module, it is characterised in that the side of the optical lens is in
45 ° of settings.
10. a kind of laser beam emitting device, it is characterised in that swash with the various dimensions sign as described in claim any one of 1-9
Light module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203232.0A CN106773076A (en) | 2017-03-30 | 2017-03-30 | Various dimensions indicate laser module and laser beam emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203232.0A CN106773076A (en) | 2017-03-30 | 2017-03-30 | Various dimensions indicate laser module and laser beam emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106773076A true CN106773076A (en) | 2017-05-31 |
Family
ID=58965515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203232.0A Pending CN106773076A (en) | 2017-03-30 | 2017-03-30 | Various dimensions indicate laser module and laser beam emitting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106773076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111221133A (en) * | 2019-12-03 | 2020-06-02 | 常州迈纳光电科技有限公司 | A 360-degree transmissive free-form surface shaping laser module and a design method of the free-form surface transmission mirror therein |
| CN112882236A (en) * | 2021-01-20 | 2021-06-01 | 上海闻泰信息技术有限公司 | Nose pad structure and glasses |
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| CN202911696U (en) * | 2012-09-13 | 2013-05-01 | 郑州宇通客车股份有限公司 | Height adjustment mechanism for safety belt and seat with height adjustment mechanism |
| CN106501946A (en) * | 2017-01-10 | 2017-03-15 | 青岛镭创光电技术有限公司 | Optical lens module |
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| US20030095840A1 (en) * | 2001-11-20 | 2003-05-22 | Winston Wang | System of laser positioning of an aperture processing machine |
| US20040223330A1 (en) * | 2003-05-07 | 2004-11-11 | Broude Sergey V. | Methods and apparatuses for homogenzing light |
| CN2680233Y (en) * | 2004-03-08 | 2005-02-23 | 江阴万事兴医疗器械有限公司 | Stretcher for stair |
| CN2798138Y (en) * | 2005-02-06 | 2006-07-19 | 陆建红 | Multiple beam laser generator |
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| CN111221133A (en) * | 2019-12-03 | 2020-06-02 | 常州迈纳光电科技有限公司 | A 360-degree transmissive free-form surface shaping laser module and a design method of the free-form surface transmission mirror therein |
| CN112882236A (en) * | 2021-01-20 | 2021-06-01 | 上海闻泰信息技术有限公司 | Nose pad structure and glasses |
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Application publication date: 20170531 |