CN105511087B - Laser display shimming apparatus for shaping based on fly's-eye lens - Google Patents
Laser display shimming apparatus for shaping based on fly's-eye lens Download PDFInfo
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- CN105511087B CN105511087B CN201610019628.5A CN201610019628A CN105511087B CN 105511087 B CN105511087 B CN 105511087B CN 201610019628 A CN201610019628 A CN 201610019628A CN 105511087 B CN105511087 B CN 105511087B
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- 238000007493 shaping process Methods 0.000 title claims abstract description 24
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000009738 saturating Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001427 coherent effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000001795 light effect Effects 0.000 abstract description 2
- 230000000452 restraining effect Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
-
- 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
- G02B27/0961—Lens arrays
Abstract
The invention provides a kind of laser beam shimming and speckle restraining device.The present apparatus includes collimation lens, diffusion sheet, condenser and fly's-eye lens.The present invention utilizes the even light effect of fly's-eye lens, fly's-eye lens is divided into four identical regions, double fly's-eye lens is input to after laser beam is received, expands and collimated using collimation lens and diffusion sheet and carries out even light shaping, laser beam is subsequently incident to X spectroscopes and carries out light splitting projection.Originally rational in infrastructure to be divided into after four light paths, rationally compensate for X spectroscopes, there is the defect of dark fringe in picture screen center in projection systems.The apparatus structure is simple, and stable, display image screen effect is good, the advantages of light field is uniform, can be applied to the illumination using coherent light as light source or display technology field.
Description
Technical field
The present invention relates to technical field of laser display, be especially applicable to laser lighting, laser display and using coherent light as
The optical device and instrument of light source, specially a kind of laser display shimming apparatus for shaping based on fly's-eye lens.
Background technology
Laser has brightness height, wavelength bandwidth small, the features such as etendue is small, in laser display field and laser lighting
Field has broad application prospects.But, what it is due to laser emitting is single mode or multimode Gaussian beam, and optical field distribution is uneven
It is even, it is therefore desirable to which that laser beam is converted into given shape（Such as rectangle or square）And the light beam of even intensity.
Fly's-eye lens is combined by a series of identical lenticules, the lamp optical system based on fly's-eye lens with
The advantage such as its efficiency of light energy utilization is high, simple in construction, the field for needing Uniform Illumination in optical projection system, illuminator etc. has extensively
Application.In the optical projection system light path based on fly's-eye lens, a whole Shu Baiguang of conventional light source outgoing passes through fly's-eye lens by X
Spectroscope is divided into the road light of RGB three, the display of final picture is realized by the modulation of light engine data signal, by light source
The light beam of every bit outgoing can be all overlapped in the same scope of illumination field of view, so a uniform square focus spot can be obtained.
However, being formed because X spectroscopes generally intersect bonding using the filter plate of two panels different wave length, the efficiency of transmission at crossover location
Low, the core of incident light is formed after fly's-eye lens and X spectroscopes in the corresponding image planes of X spectroscope crossover locations
One details in a play not acted out on stage, but told through dialogues region, projects to after screen and has a strong impact on the uniformity of image, influences projected picture quality.
Therefore, picture centre details in a play not acted out on stage, but told through dialogues how is eliminated, image quality is improved, and the shimming of laser beam is based on compound eye
Problem present in the laser display system of lens.
The content of the invention
It is an object of the invention to provide shimming in a kind of laser display based on fly's-eye lens and laser illumination system is whole
The device of shape.
The present invention adopts the following technical scheme that realization：
A kind of laser display shimming apparatus for shaping based on fly's-eye lens, including shimming component, the shimming component include
First collimation lens, diffusion sheet, concavees lens, the second collimation lens；Incident light sequentially passes through the first collimation lens, diffusion sheet, recessed
Be input to first fly's-eye lens after lens, the second collimation lens, and further across the second fly's-eye lens after, by condenser,
It is last to be carried out projecting after light splitting by X spectroscopes.
During work, piece is penetrated when the laser light incident light beam of fibre optical transmission is irradiated to expansion after the first collimation lens collimation, through expanding
After discrete piece is scattered to incident laser certain angle, light beam is dissipated at an angle by concavees lens, then through the second collimation lens
The laser beam of diverging is collimated, beam orthogonal, which enters, forms a branch of parallel with optical axis parallel after first fly's-eye lens
Light, the lenslet center that light beam is focused on after the lenslet in first fly's-eye lens in corresponding second fly's-eye lens,
I.e. light source formation multiple light sources picture is illuminated by first fly's-eye lens, and each lenslet of the second fly's-eye lens is by the first compound eye
On lens after corresponding lenslet overlapping imaging, the hot spot of the second fly's-eye lens outgoing is focused on lighting screen through condenser.
As shown in figure 1, illuminated because the whole angle pencil of ray of light source is divided into multiple light pencils by first fly's-eye lens, and each light pencil model
Interior small inhomogeneities is enclosed, due to being overlapped mutually in symmetric position light pencil, obtains the small inhomogeneities of light pencil
It must compensate, so that the light energy in whole aperture is effectively and uniformly utilized.Lead to from the hot spot of the second fly's-eye lens outgoing
Cross condenser and X spectroscopes are gathered on lighting screen, the photograph that the every bit of hot spot is sent a little by light source on lighting screen
Penetrate, meanwhile, every bit is sent on light source light beam all crosses again to be overlapped onto in same field range in illumination spot, so
To a uniform square focus spot.
Due to having installed the second fly's-eye lens additional after first fly's-eye lens, light beam after collimation has certain folder with optical axis
Angle, but when being not too big, each small of the second fly's-eye lens of correspondence is deviate from after the lenslet of first fly's-eye lens
The center of mirror but corresponding lenslet unit is not completely offset from.Now due to the light that same point is sent on focal plane, by
After two collimation lenses, by exiting parallel, therefore the directional light of this and parallel optical axis passes through outgoing after the second fly eye lens array
Radiation direction is consistent, is emitted onto identical region, does not produce secondary lobe.
In laser display optical projection system, the light of RGB different-waveband is split by X spectroscopes, X spectroscopes be by
The level crossing of two different plated films formed after overlapping gluing, realizes spectrophotometric result.Second fly's-eye lens central area one
When the light beam of row's lenslet outgoing is glued portions by the spectroscopical central areas of X, luminous energy loss is larger, projects to screen just
Dark fringe can occur by the heart in the picture.During work, shimming reshaping device of the present invention is in order to be prevented effectively from this phenomenon, by laser light
Beam is divided into several regions and inputted.Some groups of shimmings are arranged in Central Symmetry mode positioned at first fly's-eye lens incidence end
Component, then the hot spot of first fly's-eye lens incident end face be evenly distributed on several regions in first fly's-eye lens, it is and different
Without intersection between region.The light distribution of conventional light source input is so distinguished over, it is most strong in this region light energy, therefore the present invention
When middle laser passes through X spectroscopes, the luminous energy being blocked far smaller than conventional light source, so as to effectively eliminate projected picture central area
Partially dark phenomenon.
During work, it is incident that incident beam is divided into several regions, by mechanical structured member adjust the second collimation lens with it is recessed
The distance between lens, adjust spot size, light energy are fully entered in first fly's-eye lens, and ensure that the first compound eye is saturating
The coverage rate of lenslet on mirror reaches more than 78.5%, and conventional light source is only capable of covering the 45%- for being perfunctory to lens after collimation
50%。
In addition, the first collimation lens, diffusion sheet, concavees lens and the second collimation lens pass through overall mechanical structured member
It is connected, it is ensured that coaxial, the concentricity of optics.
The present invention is reasonable in design, simple in construction, and what is reached has the beneficial effect that：
1st, shimming effect is good：If laser beam is divided into stem portion, first fly's-eye lens are incided in progress shimming shaping, incident
Light coverage rate of micro mirror in first fly's-eye lens is up to more than 78.5%, and good shimming effect can be achieved, and incident photosynthetic
The layout of reason avoids the micro mirror in first fly's-eye lens array center region corresponding with X spectroscopes, so as to avoid to form projection
The dark fringe of picture centre.
2nd, laser utilization is high：After collimation lens set, the light beam residue angle of divergence is small, therefore light beam passes through fly's-eye lens
When efficiency high.
3rd, light path integrated level is high：Using concavees lens, shorten optical path distance, improve structural stability.
4th, it is simple in construction, low cost, it is easy to processing and installation, and with adjustable structure design.
5th, each part can be achieved for a long time in device, and continuous-stable work, performance is stable, safe and reliable.
The present invention is utilized after the even light effect of fly's-eye lens, some light paths of classifying rationally, fly's-eye lens is divided into some
Individual identical region, is input to double compound eye saturating after laser beam is received, expands and collimated with diffusion sheet using collimation lens
Mirror carries out even light shaping, and laser beam is subsequently incident to X spectroscopes and carries out light splitting projection, rationally compensate for X spectroscopes in projection
There is the defect of dark fringe in picture screen center in system.The apparatus structure is simple, stable, with display image screen effect
It is really good, the advantages of light field is uniform, can be applied to the illumination using coherent light as light source or display technology field.
Brief description of the drawings
Fig. 1 represents fly's-eye lens Uniform Illumination schematic diagram.
Fig. 2 represents correction principle schematic of second fly's-eye lens to low-angle light path.
Fig. 3 a represent shimming apparatus for shaping light path design schematic diagram（Side view）.
Fig. 3 b represent shimming apparatus for shaping light path design schematic diagram（Overall oblique view）.
Fig. 3 c represent shimming apparatus for shaping light path design schematic diagram（Front view）.
Fig. 4 represents light intensity distribution schematic diagram on fly eye lens array.
Fig. 5 represents Showing Effectiveness On Screen schematic diagram of the present invention.
In figure, the collimation lenses of 1- first, 2- diffusion sheets, 3- concavees lens, the collimation lenses of 4- second, 5- first fly's-eye lens,
The fly's-eye lenses of 6- second, 7- condensers, 8-X spectroscopes, 9- lighting screens（Virtual screen）.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
A kind of laser display shimming apparatus for shaping based on fly's-eye lens, as shown in Figure 1,3, including shimming component, it is described
Shimming component includes the first collimation lens 1, diffusion sheet 2, concavees lens 3, the second collimation lens 4.First collimation lens 1 and collection
Beam fiber exit end is fixedly connected by mechanical parts.First collimation lens 1, diffusion sheet 2, concavees lens 3, the second collimation lens
4 are fixedly connected sequentially by mechanical structured member；The mechanical structured member is the fixed structure of stationary optics, it is possible to changed
The distance between eyeglass in light path, so as to adjust the size of hot spot.Transparent diffusion sheet 2 is existing known features.
Incident light is input to first after sequentially passing through the first collimation lens 1, diffusion sheet 2, concavees lens 3, the second collimation lens 4
Fly's-eye lens 5, and further across the second fly's-eye lens 6 after, by condenser 7, finally carried out throwing after light splitting by X spectroscopes 8
Shadow.
Wherein, bundling optical fiber incidence end axis is overlapped with the axis of the first collimation lens 1, concavees lens 3, and light is described
By preferable shaping in shimming mechanism, there is no off center axis in light shaping, then efficiently conducted, therefore light beam coupling
Efficiency high.
The present embodiment is illustrated exemplified by with four groups of shimming components.
4 groups of shimming components are disposed with Central Symmetry mode positioned at the incidence end of first fly's-eye lens 5, then it is corresponding, first
The hot spot of the incident end face of fly's-eye lens 5 is evenly distributed on 4 of first fly's-eye lens 5 between region, and different zones without intersection.
So, the outgoing beam intensity distribution region of the second fly's-eye lens 6, avoids the central crossbar region of X spectroscopes 8.It is so every
The first collimation lens 1, diffusion sheet 2, concavees lens 3, the second collimation lens 4, first fly's-eye lens 5, second are disposed with individual light path
Fly's-eye lens 6.Wherein, the first collimation lens 1, diffusion sheet 2, the collimation lens 4 of concavees lens 3 and second incidence it is equal with outgoing end face
It is coated with the anti-reflection film of corresponding laser beam wavelength.
During work, as shown in Figure 3 a, penetrated when the laser beam of fibre optical transmission is irradiated to expansion after the first collimation lens 1 collimation
Piece 2, after being scattered through diffusion sheet 2 to incident laser certain angle, is dissipated light beam by concavees lens 3 at an angle, then through the
Two collimation lenses 4 are collimated the laser beam of diverging.Formed as shown in figure 1, beam orthogonal enters after first fly's-eye lens 5
A branch of directional light parallel with optical axis, light beam focuses on the center of the second fly's-eye lens 6 after first fly's-eye lens 5, i.e.,
Light source formation multiple light sources picture is illuminated by first fly's-eye lens 5, and each lenslet of the second fly's-eye lens 6 is by the first compound eye
On lens 5 after corresponding lenslet overlapping imaging, the hot spot of the outgoing of second fly's-eye lens 6 is focused on into lighting screen 9 through condenser 7
On.As shown in figure 1, illuminated because the whole angle pencil of ray of light source is divided into multiple light pencils by first row fly's-eye lens, and it is each thin
Small inhomogeneities in beam range makes the small uneven of light pencil due to being overlapped mutually in symmetric position light pencil
Property compensated so that the light energy in whole aperture is effectively and uniformly utilized.From the light of the outgoing of the second fly's-eye lens 6
Spot is gathered on lighting screen 9 by condenser 7 and X spectroscopes 8, on lighting screen 9 every bit of hot spot by light source institute a little
The irradiation sent, meanwhile, all intersection overlaps onto the same field range in illumination spot to the light beam that every bit is sent on light source again
It is interior, so obtaining a uniform square focus spot.
In addition, in laser display optical projection system, the light of RGB different-waveband is split by X spectroscopes 8, X light splitting
Mirror 8 is to be carried out being formed after overlapping gluing by the level crossing of two different plated films, realizes spectrophotometric result.In second fly's-eye lens 6
When the light beam of the row's lenslet outgoing of heart district domain one is glued portions by the central area of X spectroscopes 8, luminous energy loss is larger, throws
Shadow dark fringe will occur by the heart in the picture to screen.During work, shimming reshaping device of the present invention is it is possible to prevente effectively from this existing
As laser beam is divided into four regions and inputted, as shown in Figure 3 c, after the second collimation lens 4, is evenly distributed in
Four regions of first fly's-eye lens 5, light distribution region are not as shown in figure 4, four incident area cross sections have luminous energy point
Cloth, distinguishes over the light distribution of conventional light source input, most strong in this region light energy, therefore laser passes through X light splitting in the present invention
During mirror 8, the luminous energy being blocked far smaller than conventional light source, so as to effectively eliminate projected picture central area dark phenomenon partially.
During work, incident beam is divided into four region incidences, and the second collimation lens 4 is adjusted and recessed by mechanical structured member
The distance between mirror 3, adjusts spot size, light energy is fully entered in first fly's-eye lens 5, and ensures that the first compound eye is saturating
The coverage rate of lenslet on mirror reaches more than 78.5%, and conventional light source is only capable of covering the 45%- for being perfunctory to lens after collimation
50%。
In addition, the first collimation lens 1, diffusion sheet 2, the collimation lens 4 of concavees lens 3 and second are tied by overall machinery
Component is connected, it is ensured that coaxial, the concentricity of optics.
More preferably, entirely shimming apparatus for shaping it can also be upgraded, using multiple region laser light incidents such as 6 × 6,8 × 8
Mode, hot spot is evenly distributed in 36 or 64 mutually disjoint regions of first fly's-eye lens 5, it is possible to achieve higher
Fly's-eye lens luminous energy coverage rate, the shimming effect of more high-quality.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although ginseng
The present invention is described in detail according to embodiment, it will be understood by those within the art that, to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical scheme, it all should cover the present invention
Claims in.
Claims (9)
1. a kind of laser display shimming apparatus for shaping based on fly's-eye lens, it is characterised in that：Including shimming component, the shimming
Component includes the first collimation lens（1）, diffusion sheet（2）, concavees lens（3）, the second collimation lens（4）；
Incident light sequentially passes through the first collimation lens（1）, diffusion sheet（2）, concavees lens（3）, the second collimation lens（4）After be input to
First fly's-eye lens（5）, and further across the second fly's-eye lens（6）Afterwards, condenser is passed through（7）, finally by X spectroscopes（8）
Projected after light splitting；
Positioned at first fly's-eye lens（5）Incidence end is disposed with some groups of shimming components in Central Symmetry mode, then the first compound eye is saturating
Mirror（5）The hot spot of incident end face is evenly distributed on first fly's-eye lens（5）On several regions, and different zones between without friendship
Fork；If laser beam, which is divided into stem portion progress shimming shaping, incides first fly's-eye lens, and incident light reasonably keep away by layout
The micro mirror in first fly's-eye lens array center region corresponding with X spectroscopes is opened.
2. the laser display shimming apparatus for shaping according to claim 1 based on fly's-eye lens, it is characterised in that：Described
Collimating lens（1）It is fixedly connected with bundling optical fiber exit end by mechanical parts, first collimation lens（1）, diffusion sheet
（2）, concavees lens（3）, the second collimation lens（4）It is fixedly connected sequentially by mechanical structured member.
3. according to laser display shimming apparatus for shaping of the claim 1 or 2 based on fly's-eye lens, it is characterised in that：Positioned at first
Fly's-eye lens（5）Incidence end is disposed with 4 groups or 6 groups or 8 groups of shimming components in Central Symmetry mode, then corresponding, and first answers
Eyelens（5）The hot spot of incident end face is evenly distributed on first fly's-eye lens（5）4 or 6 or 8 regions, and not
With between region without intersection.
4. the laser display shimming apparatus for shaping according to claim 2 based on fly's-eye lens, it is characterised in that：Concentrated light
Fine incidence end axis and the first collimation lens（1）, concavees lens（3）Axis overlap.
5. the laser display shimming apparatus for shaping according to claim 4 based on fly's-eye lens, it is characterised in that：Described
Two collimation lenses（4）Outgoing beam be collimated light beam, be normally incident in first fly's-eye lens（5）Incident end face.
6. the laser display shimming apparatus for shaping according to claim 3 based on fly's-eye lens, it is characterised in that：Concentrated light
Fine incidence end axis and the first collimation lens（1）, concavees lens（3）Axis overlap；Second collimation lens（4）Emergent light
Beam is collimated light beam, is normally incident in first fly's-eye lens（5）Incident end face.
7. the laser display shimming apparatus for shaping according to claim 1 or 2 based on fly's-eye lens, it is characterised in that：The
Collimating lens（1）, diffusion sheet（2）, concavees lens（3）And second collimation lens（4）Incidence be coated with relatively with outgoing end face
Answer the anti-reflection film of laser beam wavelength.
8. the laser display shimming apparatus for shaping according to claim 3 based on fly's-eye lens, it is characterised in that：First is accurate
Straight lens（1）, diffusion sheet（2）, concavees lens（3）And second collimation lens（4）Incidence and outgoing end face be coated with it is relative stress
The anti-reflection film of light light beam wavelength.
9. the laser display shimming apparatus for shaping based on fly's-eye lens stated according to claim 3, it is characterised in that：Pass through machinery
Structural member adjusts the second collimation lens（4）With concavees lens（3）The distance between, spot size is adjusted, light energy is fully entered
To first fly's-eye lens（5）On, and ensure first fly's-eye lens（5）On the coverage rate of lenslet reach more than 78.5%.
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| CN201610019628.5A CN105511087B (en) | 2016-01-13 | 2016-01-13 | Laser display shimming apparatus for shaping based on fly's-eye lens |
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| CN201610019628.5A CN105511087B (en) | 2016-01-13 | 2016-01-13 | Laser display shimming apparatus for shaping based on fly's-eye lens |
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| CN108490744B (en) * | 2018-05-15 | 2024-03-29 | 东莞市中誉光电科技有限公司 | UV-LED optical system and exposure machine |
| CN111360397A (en) * | 2019-08-14 | 2020-07-03 | 方强 | Dodging optical system based on multiple optical fiber output laser modules and processing head |
| CN110900010B (en) * | 2019-12-25 | 2021-08-13 | 广东电网有限责任公司 | Panel laser cutting machine of power equipment production usefulness |
| DE102020103967A1 (en) * | 2020-02-14 | 2021-08-19 | Bayerische Motoren Werke Aktiengesellschaft | Field of view display device with a bright, energy-efficient backlight for a vehicle |
| CN114690521A (en) * | 2020-12-29 | 2022-07-01 | 青岛海信激光显示股份有限公司 | Laser light source device and projection equipment |
| CN112731751A (en) * | 2020-12-31 | 2021-04-30 | 广景视睿科技（深圳）有限公司 | Projection equipment |
| CN112666718B (en) * | 2021-01-27 | 2023-04-25 | 中国人民解放军国防科技大学 | Computing association imaging system and method in smoke screen environment |
| CN113189832B (en) * | 2021-04-08 | 2022-06-17 | 无锡视美乐激光显示科技有限公司 | Light homogenizing device and method, light source device and projection system |
| CN113641063B (en) * | 2021-08-16 | 2023-12-08 | 深圳市火乐科技发展有限公司 | Dodging device, projector optical machine and projector |
| CN114859640A (en) * | 2022-05-09 | 2022-08-05 | 无锡视美乐激光显示科技有限公司 | Light shaping system, light source device and design method of light source device |
| CN114967300A (en) * | 2022-06-02 | 2022-08-30 | 深圳市火乐科技发展有限公司 | Dodging assembly, projection optical machine and projection equipment |
| CN116058961A (en) * | 2023-03-06 | 2023-05-05 | 安徽雷彻科技有限公司 | Coupled ultraviolet laser ablation catheter capable of uniformly applying energy |
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| TW434444B (en) * | 1996-10-30 | 2001-05-16 | Seiko Epson Corp | Projection display and illuminating optical system for it |
| EP1655636B1 (en) * | 2003-07-22 | 2011-12-07 | Panasonic Corporation | Two-dimensional image forming apparatus |
| CN204065561U (en) * | 2014-08-11 | 2014-12-31 | 上海太阳能工程技术研究中心有限公司 | The dodging device of coupling fiber formula semiconductor laser |
| CN205353467U (en) * | 2016-01-13 | 2016-06-29 | 晋煤激光科技股份有限公司 | Laser display shimming shaping device based on compound eye lens |
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Address after: 030032 No. 51 Zhengyang Street, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi Hanwei laser Polytron Technologies Inc Address before: 030006 No. 8, 5th floor, Block A, High-tech International Building, 227 Changzhi Road, Taiyuan City, Shanxi Province Patentee before: JINMEI LASERTEC CORP., LTD. |
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Denomination of invention: Shimming device for laser display based on compound eye lens Effective date of registration: 20200819 Granted publication date: 20170922 Pledgee: Shanxi finance Company limited by guarantee Pledgor: Shanxi Hanwei laser Polytron Technologies Inc. Registration number: Y2020980005115 |
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Denomination of invention: Laser display shimming shaping device based on compound eye lens Effective date of registration: 20211011 Granted publication date: 20170922 Pledgee: Shanxi Transformational Comprehensive Reform Demonstration Zone Financing Guarantee Co.,Ltd. Pledgor: Shanxi Hanwei laser Polytron Technologies Inc. Registration number: Y2021140000039 |