CN205353467U - Laser display shimming shaping device based on compound eye lens - Google Patents
Laser display shimming shaping device based on compound eye lens Download PDFInfo
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- CN205353467U CN205353467U CN201620028329.3U CN201620028329U CN205353467U CN 205353467 U CN205353467 U CN 205353467U CN 201620028329 U CN201620028329 U CN 201620028329U CN 205353467 U CN205353467 U CN 205353467U
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- fly
- lens
- eye lens
- shimming
- collimating lens
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Abstract
The utility model provides a laser display shimming shaping device based on compound eye lens. This device is including collimating lens, diffusion piece, condensing lens and compound eye lens. The utility model discloses utilize compound eye lens 's even light efficiency fruit, be divided into four the same regions with compound eye lens, utilize collimating lens and diffusion piece to laser beam receive, expand restraint and the collimation after import double compound eye lens and spare the polishing and appear, laser beam incides the X spectroscope afterwards and carries out the branch optical projection. This is rational in infrastructure divide four light paths into after, rationally compensatied the defect that the dark fringe appears in X spectroscope picture screen center in projecting system. The device simple structure, the operation is stable, and screen display image is effectual, and light field advantage such as even can be applied to and use the illumination or the demonstration technical field of coherent light as the light source.
Description
Technical field
This utility model relates to technical field of laser display, be especially applicable to laser lighting, laser display and with coherent light be light source optical device and instrument, be specially a kind of laser display shimming apparatus for shaping based on fly's-eye lens.
Background technology
It is little that laser has brightness height, wavelength bandwidth, and the features such as etendue amount is little have broad application prospects in laser display field and field of laser illumination.But, due to laser emitting is single mode or multimode Gaussian beam, and optical field distribution is uneven, it is therefore desirable to laser beam is converted to the light beam of given shape (such as rectangle or square) and even intensity.
Fly's-eye lens is combined by a series of identical lenticulees, based on the lamp optical system of fly's-eye lens with advantages such as its efficiency of light energy utilization height, simple in construction, needs the field of Uniform Illumination to have a wide range of applications in optical projection system, illuminator etc..Based in the optical projection system light path of fly's-eye lens, one whole Shu Baiguang of conventional light source outgoing is divided into RGB three road light through fly's-eye lens by X spectroscope, the display of final picture is realized by the modulation of light engine digital signal, a uniform square focus spot all can be overlapped by the light beam of the every bit outgoing of light source in the same scope of illumination field of view, so can be obtained.But, owing to X spectroscope generally adopts the filter plate intersection bonding of two panels different wave length to form, at crossover location place, efficiency of transmission is low, the core of incident illumination is after fly's-eye lens and X spectroscope, the image planes that X spectroscope crossover location is corresponding are formed a details in a play not acted out on stage, but told through dialogues region, have a strong impact on the uniformity of image after projecting to screen, affect projected picture quality.
Therefore, how to eliminate picture centre details in a play not acted out on stage, but told through dialogues, improve image quality, and the shimming of laser beam be the difficult problem existed in based on the laser display system of fly's-eye lens.
Summary of the invention
The purpose of this utility model is in that to provide the device of shimming shaping in a kind of laser display based on fly's-eye lens and laser illumination system.
This utility model adopts the following technical scheme that realization:
A kind of laser display shimming apparatus for shaping based on fly's-eye lens, including shimming assembly, described shimming assembly includes the first collimating lens, diffusion sheet, concavees lens, the second collimating lens；Incident illumination is input to the first fly's-eye lens after sequentially passing through the first collimating lens, diffusion sheet, concavees lens, the second collimating lens, and further across after the second fly's-eye lens, by condenser lens, projects after finally being carried out light splitting by X spectroscope.
During work, sheet is penetrated when the laser light incident light beam of fibre optical transmission is irradiated to expansion after the first collimating lens collimation, after diffusion sheet is to incident laser certain angle scattering, by concavees lens, light beam is dispersed at an angle, then through the second collimating lens, the laser beam dispersed is collimated, beam orthogonal forms a branch of directional light parallel with optical axis after entering the first fly's-eye lens, light beam focuses on the lenslet center in the second fly's-eye lens of correspondence after the lenslet in the first fly's-eye lens, namely light source is formed multiple smooth source image and is illuminated by the first fly's-eye lens, each lenslet of the second fly's-eye lens is by after lenslet overlapping imaging corresponding on the first fly's-eye lens, through condenser lens, the hot spot of the second fly's-eye lens outgoing is focused on lighting screen.As shown in Figure 1, owing to the whole angle pencil of ray of light source is divided into multiple light pencil to illuminate by the first fly's-eye lens, and the small inhomogeneities within the scope of each light pencil, owing to being in being overlapped mutually of symmetric position light pencil, the small inhomogeneities making light pencil obtains and compensates, so that the light energy in whole aperture is utilized effectively and uniformly.It is gathered in lighting screen from the hot spot of the second fly's-eye lens outgoing by condenser lens and X spectroscope, on lighting screen, the every bit of hot spot is all subject to the irradiation that light source sends a little, simultaneously, the light beam that on light source, every bit sends all crosses again in the same field range overlapping onto in illumination spot, so obtaining a uniform square focus spot.
Owing to having installed the second fly's-eye lens after the first fly's-eye lens additional, when the light beam after collimation and optical axis have certain angle, but when not being too big, after the lenslet of the first fly's-eye lens, deviate from the center of each lenslet of corresponding second fly's-eye lens but do not completely offset from the lenslet unit of correspondence.Now due to the light that same point on focal plane sends, after the second collimating lens, by exiting parallel, therefore this is consistent by the radiation direction of outgoing after the second fly eye lens array with the directional light of parallel optical axis, 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 spectroscope, and X spectroscope is to be carried out overlapping gluing by the plane mirror of two different plated films to be subsequently formed, it is achieved spectrophotometric result.The light beam of lenslet outgoing is arranged through the spectroscopical central area of X and glued portions in second fly's-eye lens central area one, and luminous energy loss is relatively big, and projecting to screen dark fringe will occurs by the heart in the picture.During work, laser beam, in order to be prevented effectively from this phenomenon, is divided into several regions to input by shimming reshaping device of the present invention.Namely be positioned at the first fly's-eye lens incidence end and arrange some groups of shimming assemblies in centrosymmetry mode, then the hot spot of the first fly's-eye lens incident end face is evenly distributed on several regions on the first fly's-eye lens, and without intersecting between zones of different.So distinguishing over the light distribution of conventional light source input, the strongest at this area light energy, therefore in the present invention, laser is through X spectroscope, and the luminous energy being blocked is far smaller than conventional light source, thus effectively eliminating the phenomenon that projected picture central area is partially dark.
During work, incident beam is divided into several regions incident, the distance between the second collimating lens and concavees lens is adjusted by mechanical structured member, adjust spot size, light energy is fully entered on the first fly's-eye lens, and ensure that the coverage rate of the lenslet on the first fly's-eye lens reaches more than 78.5%, and conventional light source is only capable of covering the 45%-50% being perfunctory to lens after collimation.
In addition, the first collimating lens, diffusion sheet, concavees lens and the second collimating lens connect fixing by overall mechanical structured member, it is ensured that coaxial, the concentricity of optics.
This utility model is reasonable in design, simple in construction, and what reach has the beneficial effect that:
1, shimming is effective: laser beam is divided into some parts to carry out shimming shaping and incide the first fly's-eye lens, incident illumination on the first fly's-eye lens the coverage rate of micro mirror up to more than 78.5%, good shimming effect can be realized, and the rational layout of incident illumination avoids the micro mirror of first fly eye lens array central area corresponding to X spectroscope, thus avoiding the dark fringe forming projected image center.
2, laser utilization is high: after collimation lens set, and the light beam residue angle of divergence is little, and therefore light beam is high through fly's-eye lens efficiency.
3, light path integrated level is high: adopt concavees lens, shortens optical path distance, improves structural stability.
4, simple in construction, cost is low, it is easy to processing and installation, and has adjustable structure design.
5, in device, each ingredient all can realize for a long time, and continuous-stable works, and stable performance is safe and reliable.
This utility model utilizes the even light effect of fly's-eye lens, after some light paths of classifying rationally, fly's-eye lens is divided into the region that several are identical, utilize collimating lens to be input to double fly's-eye lens after laser beam being received, expands and collimate with diffusion sheet and carry out even light shaping, laser beam is subsequently incident to X spectroscope and carries out light splitting projection, rationally compensate for X spectroscope picture screen center in projection systems and the defect of dark fringe occurs.This apparatus structure is simple, stable, has the advantages such as display image screen is effective, light field is uniform, can be applicable to coherent light be light source illumination or Display Technique field.
Accompanying drawing explanation
Fig. 1 represents fly's-eye lens Uniform Illumination schematic diagram.
Fig. 2 represents second fly's-eye lens correction principle schematic to low-angle light path.
Fig. 3 a represents shimming apparatus for shaping light path design schematic diagram (side view).
Fig. 3 b represents shimming apparatus for shaping light path design schematic diagram (overall oblique view).
Fig. 3 c represents 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 this utility model Showing Effectiveness On Screen schematic diagram.
In figure, 1-the first collimating lens, 2-diffusion sheet, 3-concavees lens, 4-the second collimating lens, 5-the first fly's-eye lens, 6-the second fly's-eye lens, 7-condenser lens, 8-X spectroscope, 9-lighting screen (virtual screen).
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
A kind of laser display shimming apparatus for shaping based on fly's-eye lens, as shown in Figure 1,3, including shimming assembly, described shimming assembly includes the first collimating lens 1, diffusion sheet 2, concavees lens the 3, second collimating lens 4.Described first collimating lens 1 is connected by mechanical parts is fixing with bundling optical fiber exit end.Described first collimating lens 1, diffusion sheet 2, concavees lens the 3, second collimating lens 4 are fixedly connected sequentially by mechanical structured member；Described mechanical structured member is the fixed structure of stationary optics, it is possible to change the distance between eyeglass in light path, thus adjusting the size of hot spot.Transparent diffusion sheet 2 is existing known features.
Incident illumination is input to the first fly's-eye lens 5 after sequentially passing through the first collimating lens 1, diffusion sheet 2, concavees lens the 3, second collimating lens 4, and further across after the second fly's-eye lens 6, by condenser lens 7, projects after finally being carried out light splitting by X spectroscope 8.
Wherein, the dead in line of bundling optical fiber incidence end axis and the first collimating lens 1, concavees lens 3, light by good shaping, does not have off center axis in described shimming mechanism in light shaping, then conducted efficiently, and therefore light beam coupling efficiency is high.
The present embodiment illustrates to have four groups of shimming assemblies.
Be positioned at the first fly's-eye lens 5 incidence end and be provided with 4 groups of shimming assemblies in centrosymmetry mode, then corresponding, the hot spot of the first fly's-eye lens 5 incident end face is evenly distributed on 4 regions of the first fly's-eye lens 5, and without intersecting between zones of different.So, the outgoing beam intensity distributions region of the second fly's-eye lens 6, avoid the central crossbar region of X spectroscope 8.So each light path is provided with the first collimating lens 1, diffusion sheet 2, concavees lens 3, the second collimating lens 4, the first fly's-eye lens 5, the second fly's-eye lens 6.Wherein, the incidence of the first collimating lens 1, diffusion sheet 2, concavees lens 3 and the second collimating lens 4 is all coated with the anti-reflection film of corresponding laser beam wavelength with outgoing end face.
During work, as shown in Figure 3 a, sheet 2 is penetrated when the laser beam of fibre optical transmission is irradiated to expansion after the first collimating lens 1 collimation, after diffusion sheet 2 is to incident laser certain angle scattering, by concavees lens 3, light beam is dispersed at an angle, then through the second collimating lens 4, the laser beam dispersed is collimated.As shown in Figure 1, beam orthogonal forms a branch of directional light parallel with optical axis after entering the first fly's-eye lens 5, light beam focuses on the center of the second fly's-eye lens 6 after the first fly's-eye lens 5, namely light source is formed multiple smooth source image and is illuminated by the first fly's-eye lens 5, the hot spot of the second fly's-eye lens 6 outgoing, by after lenslet overlapping imaging corresponding on the first fly's-eye lens 5, is focused on lighting screen 9 by each lenslet of the second fly's-eye lens 6 through condenser lens 7.As shown in Figure 1, owing to the whole angle pencil of ray of light source is divided into multiple light pencil to illuminate by first row fly's-eye lens, and the small inhomogeneities within the scope of each light pencil is owing to being in being overlapped mutually of symmetric position light pencil, the small inhomogeneities making light pencil obtains and compensates, so that the light energy in whole aperture is utilized effectively and uniformly.It is gathered in lighting screen 9 from the hot spot of the second fly's-eye lens 6 outgoing by condenser lens 7 and X spectroscope 8, on lighting screen 9, the every bit of hot spot is all subject to the irradiation that light source sends a little, simultaneously, the light beam that on light source, every bit sends again all intersection overlap onto in the same field range in illumination spot, so obtaining a uniform square focus spot.
It addition, in laser display optical projection system, the light of RGB different-waveband is split by X spectroscope 8, X spectroscope 8 is to be carried out overlapping gluing by the plane mirror of two different plated films to be subsequently formed, it is achieved spectrophotometric result.The light beam of lenslet outgoing is arranged through the central area of X spectroscope 8 and glued portions in second fly's-eye lens 6 central area one, and luminous energy loss is relatively big, and projecting to screen dark fringe will occurs by the heart in the picture.During work, shimming reshaping device of the present invention can be prevented effectively from this phenomenon, laser beam is divided into four regions input, as shown in Figure 3 c, after the second collimating lens 4, it is evenly distributed in four regions of the first fly's-eye lens 5, light distribution region is as shown in Figure 4, four incident area cross sections do not have photic-energy transfer, distinguish over the light distribution of conventional light source input, the strongest at this area light energy, therefore in the present invention laser when X spectroscope 8, the luminous energy being blocked is far smaller than conventional light source, thus effectively eliminating the phenomenon that projected picture central area is partially dark.
During work, incident beam is divided into four region incidences, the distance between the second collimating lens 4 and concavees lens 3 is adjusted by mechanical structured member, adjust spot size, light energy is fully entered on the first fly's-eye lens 5, and ensure that the coverage rate of the lenslet on the first fly's-eye lens reaches more than 78.5%, and conventional light source is only capable of covering the 45%-50% being perfunctory to lens after collimation.
In addition, the first collimating lens 1, diffusion sheet 2, concavees lens 3 and the second collimating lens 4 connect fixing by overall mechanical structured member, it is ensured that coaxial, the concentricity of optics.
More preferably, can also upgrade by whole shimming apparatus for shaping, the mode of multiple regions laser light incident such as employing 6 × 6,8 × 8, hot spot is evenly distributed in six or eight mutually disjoint regions of the first fly's-eye lens 5, it is possible to achieve the shimming effect of higher fly's-eye lens luminous energy coverage rate, more high-quality.
It should be noted last that; above example is only in order to illustrate the technical solution of the utility model and unrestricted; although this utility model being described in detail with reference to embodiment; it will be understood by those within the art that; the technical solution of the utility model is modified or equivalent replacement; without departure from the spirit and scope of the technical solution of the utility model, it all should be contained in claims of the present utility model.
Claims (10)
1. the laser display shimming apparatus for shaping based on fly's-eye lens, it is characterised in that: including shimming assembly, described shimming assembly includes the first collimating lens (1), diffusion sheet (2), concavees lens (3), the second collimating lens (4)；
Incident illumination is input to the first fly's-eye lens (5) after sequentially passing through the first collimating lens (1), diffusion sheet (2), concavees lens (3), the second collimating lens (4), and further across after the second fly's-eye lens (6), by condenser lens (7), project after finally being carried out light splitting by X spectroscope (8).
2. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 1, it is characterized in that: described first collimating lens (1) is connected by mechanical parts is fixing with bundling optical fiber exit end, and described first collimating lens (1), diffusion sheet (2), concavees lens (3), the second collimating lens (4) are fixedly connected sequentially by mechanical structured member.
3. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 1 and 2, it is characterized in that: be positioned at the first fly's-eye lens (5) incidence end and be provided with some groups of group shimming assemblies in centrosymmetry mode, then the hot spot of the first fly's-eye lens (5) incident end face is evenly distributed on several regions on the first fly's-eye lens (5), and without intersecting between zones of different.
4. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 3, it is characterized in that: be positioned at the first fly's-eye lens (5) incidence end and be provided with 4 groups or 6 groups or 8 groups of shimming assemblies in centrosymmetry mode, then corresponding, the hot spot of the first fly's-eye lens (5) incident end face is evenly distributed on 4 or 6 or 8 regions of the first fly's-eye lens (5), and without intersecting between zones of different.
5. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 2, it is characterised in that: the dead in line of bundling optical fiber incidence end axis and the first collimating lens (1), concavees lens (3).
6. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 5, it is characterised in that: the outgoing beam of described second collimating lens (4) is collimated light beam, is normally incident in the first fly's-eye lens (5) incident end face.
7. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 3, it is characterised in that: the dead in line of bundling optical fiber incidence end axis and the first collimating lens (1), concavees lens (3)；The outgoing beam of described second collimating lens (4) is collimated light beam, is normally incident in the first fly's-eye lens (5) incident end face.
8. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 1 and 2, it is characterised in that: the incidence of the first collimating lens (1), diffusion sheet (2), concavees lens (3) and the second collimating lens (4) is all coated with the anti-reflection film of corresponding laser beam wavelength with outgoing end face.
9. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 3, it is characterised in that: the incidence of the first collimating lens (1), diffusion sheet (2), concavees lens (3) and the second collimating lens (4) is all coated with the anti-reflection film of corresponding laser beam wavelength with outgoing end face.
10. the laser display shimming apparatus for shaping based on fly's-eye lens according to claim 4, it is characterized in that: adjust the distance between the second collimating lens (4) and concavees lens (3) by mechanical structured member, adjust spot size, light energy is fully entered on the first fly's-eye lens (5), and ensure that the coverage rate of the lenslet on the first fly's-eye lens (5) reaches more than 78.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028329.3U CN205353467U (en) | 2016-01-13 | 2016-01-13 | Laser display shimming shaping device based on compound eye lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028329.3U CN205353467U (en) | 2016-01-13 | 2016-01-13 | Laser display shimming shaping device based on compound eye lens |
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| CN205353467U true CN205353467U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620028329.3U Withdrawn - After Issue CN205353467U (en) | 2016-01-13 | 2016-01-13 | Laser display shimming shaping device based on compound eye lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511087A (en) * | 2016-01-13 | 2016-04-20 | 晋煤激光科技股份有限公司 | Fly's-eye lens-based laser display shimming shaping device |
| CN112230500A (en) * | 2019-07-15 | 2021-01-15 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
-
2016
- 2016-01-13 CN CN201620028329.3U patent/CN205353467U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511087A (en) * | 2016-01-13 | 2016-04-20 | 晋煤激光科技股份有限公司 | Fly's-eye lens-based laser display shimming shaping device |
| CN112230500A (en) * | 2019-07-15 | 2021-01-15 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN112230500B (en) * | 2019-07-15 | 2021-10-08 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN113835288A (en) * | 2019-07-15 | 2021-12-24 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN113835289A (en) * | 2019-07-15 | 2021-12-24 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN113835289B (en) * | 2019-07-15 | 2022-07-01 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
| CN113835288B (en) * | 2019-07-15 | 2022-07-29 | 青岛海信激光显示股份有限公司 | Laser projection system and light source device |
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Granted publication date: 20160629 Effective date of abandoning: 20170922 |
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| AV01 | Patent right actively abandoned |