CN106918921A - A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping - Google Patents
A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping Download PDFInfo
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- CN106918921A CN106918921A CN201710281561.7A CN201710281561A CN106918921A CN 106918921 A CN106918921 A CN 106918921A CN 201710281561 A CN201710281561 A CN 201710281561A CN 106918921 A CN106918921 A CN 106918921A
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- fly
- light
- eye lens
- lens
- pbs
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- 238000007493 shaping process Methods 0.000 title claims abstract description 17
- 239000013307 optical fiber Substances 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000010287 polarization Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Shimming apparatus for shaping is polarized the invention discloses a kind of laser display based on fly's-eye lens, belongs to technical field of laser display.The device optical fiber, collimation lens, PBS, speculum, half-wave plate, fly's-eye lens I, fly's-eye lens II and lens；Half-wave plate is set on the exit facet that collimation lens and PBS, PBS are set on the emitting light path of optical fiber, PBS by after the laser beam light splitting of optical fiber, S light reflected through the interior reflective surface of PBS after outgoing；P light transmissions are changed into S light outgoing after crossing half-wave plate, and fly's-eye lens I, fly's-eye lens II and lens are set gradually on emitting light path；The two-way S light of reflection and outgoing realizes the hot spot after shimming and integer with identical angle incidence fly's-eye lens I, fly's-eye lens II and lens.The present invention realizes shimming, integer, is polarized function, reasonable in design, simple structure.
Description
Technical field
The present invention relates to technical field of laser display, it is especially applicable to laser lighting, laser display and is with coherent light
The optical device and instrument of light source, specially a kind of shimming apparatus for shaping light path design based on fly's-eye lens.
Background technology
The features such as laser has high brightness, Single wavelength, good beam quality, has in laser display field and field of laser illumination
Have broad application prospects.But because laser emitting light is polarised light, and power is low, in Gaussian Profile, in order to realize big work(
Rate laser lighting, generally uses laser and fiber coupling, and multifiber boundling realizes that high power laser is exported, using two panels
Formula compound eye lens group and spherical mirror realize shimming integer, then (PCS-Polarizing Conversion System are inclined using PCS
Shake photoconverter) realize that non-polarized light is converted into polarised light, it is specific as shown in Figure 1.
It is approximate flat in Lcos (Lcos-Liquid Crystal on Silicon liquid crystal on silicon) and LCD optical projection systems
Light field 6 of the priority of non-polarized light 1 of row light after 2,3 fly's-eye lenses and lens 5 realize shimming and integer, while just compound eye is saturating
Between mirror 3 and spherical mirror 5, PCS4 is placed, realize that non-polarized light is converted into line polarization light, the shimming device based on fly's-eye lens must
Must realize that polarised light is changed using PCS, cause system component high cost, system light efficiency to be less than 60%.
The content of the invention
In view of this, shimming apparatus for shaping is polarized the invention provides a kind of laser display based on fly's-eye lens, can
High efficiency and be achieved at low cost shimming integer and polarization state light conversion.
A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping, the device include optical fiber, collimation lens,
PBS (Polarizing Beam splitters polarization splitting prisms), speculum, half-wave plate, fly's-eye lens I, fly's-eye lens II
And lens；
Half-wave plate, PBS are set on the exit facet that collimation lens and PBS, PBS are set gradually on the emitting light path of the optical fiber
After the laser beam light splitting of optical fiber, speculum is set in the light path of S light reflection, S light reflects on the mirror；P light is saturating
It was changed into S light outgoing after penetrating half-wave plate, fly's-eye lens I, fly's-eye lens II and lens was set gradually on emitting light path；Reflection and
The two-way S light of outgoing injects fly's-eye lens I with identical angle, through fly's-eye lens II and lens, after realizing shimming and integer
Hot spot.
Further, in order to simplify light channel structure, the combination of PBS and speculum is replaced using internal reflector PBS.
Further, the output of P light can be realized by changing the position of half-wave plate.
Further, reduce axial light path size to be limited with suitable for different spaces, the optical fiber is vertical with collimation lens
Set in fly's-eye lens axis direction, half-wave plate is arranged on the reflection light-emitting face of internal reflector PBS；Light beam is through internal reflector
PBS light splitting, S light is directly incident on fly's-eye lens after internal reflector PBS, and the P light after light splitting is through interior reflective surface internal reflection
Afterwards, S light is converted into through half-wave plate, with identical angle incidence fly's-eye lens I, through fly's-eye lens and lens, realizes shimming and whole
Hot spot after type.
Further, in order to improve illumination luminous power, using two fiber coupling modes；It is the optical fiber, collimation lens, interior
, into S light outgoing components, two groups of S light outgoing components are centrosymmetric setting, two groups of S light outgoing groups for speculum PBS and half wave plate group
The light beam of optical fiber is located normal on the straight line of fly's-eye lens axis direction simultaneously in part.
Further, in order to overcome limitation of the different spaces to light path design, directional light is used when collimation lens are input into
Beam, collimated light beam directly inputs to realize using collimation lens to optical fiber output beam collimation or using space collimated light beam.
Further, using multifiber, various incident angle modes realize shimming integer and are polarized function.
Further, diffusion sheet is placed between incident light position, or BPS and compound eye lens group before PBS, it is further even
Change, improve shimming effect.
Beneficial effect：
1st, low production cost of the invention：Because PCS is that tens prisms and wave plate gluing are formed, machining accuracy is high, work
Sequence is complicated, therefore price is high, and the present invention instead of PCS using PBS, and PBS quantity is few, and difficulty of processing is low, therefore can be significantly
Reduce component cost；
2nd, light efficiency of the invention is high：Because PCS smooth surfaces are to be spaced apart, it is necessary to after being placed in fly's-eye lens, incident light
The angle of divergence is big, and light efficiency is less than 60%, and light beam after collimation is first converted into polarization by the present invention using PCS, fly's-eye lens mode
Light, then by fly's-eye lens shimming and integer, light efficiency is more than 90%, and the present invention can improve system light efficiency.
3rd, polarization conversion effect of the invention is good：Due to PCS as fly's-eye lens after, the incident light residue angle of divergence is big,
Polarization converted effect is poor, and delustring is smaller；After the present invention is using collimation lens collimation, the incident light angle of divergence is small, is polarized through PBS
After state conversion, extinction ratio is big.
4th, each device efficiency is high in device of the invention, and caloric value is small, can continuous-stable work, stable performance safely may be used
Lean on.
Brief description of the drawings
The laser display based on fly's-eye lens and PCS is polarized the index path of shimming apparatus for shaping to Fig. 1 in the prior art
Fig. 2 present invention is polarized the index path of shimming apparatus for shaping based on fly's-eye lens and PBS laser displays
Fig. 3 present invention replaces the embodiment of PBS using internal reflector PBS
Fig. 4 present invention uses the embodiment of vertical incidence light path design
Fig. 5 embodiments for being based on 2 × 2 internal reflector PBS and fly's-eye lens shimming, integer and being polarized light path of the invention (are hung down
It is straight incident)
Fig. 6 embodiments for being based on 2 × 2 internal reflector PBS and fly's-eye lens shimming, integer and being polarized light path of the invention are (flat
Row is incident)
Fig. 7 present invention is based on many PBS and fly's-eye lens shimming, integer and is polarized the embodiment of light path
Fig. 8 is based on the light path design of Lcos
Wherein：1- incident beams, 2- fly's-eye lenses I, 3- fly's-eye lenses II, 4-PCS, 5- lens, light after 6- shimming integers
, 7,71,72,73- optical fiber, 8,81,82,83- collimation lenses, 9-PBS, 91,92,93- internal reflectors PBS, 10,101,102,
103- half-wave plates, 11- speculums, 111- interior reflective surfaces, 12,16,19-Lcos modules, 13- beam cementing prisms, 14- projection lens,
15-X Amici prisms, 17- speculums, 18- spectroscopes, 20- speculums.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, and the present invention will be described in detail.
Embodiment 1
As shown in Figure 2, shimming apparatus for shaping is polarized the invention provides a kind of laser display based on fly's-eye lens, should
Device includes optical fiber 7, collimation lens 8, PBS9, speculum 11, half-wave plate 10, fly's-eye lens I 2, fly's-eye lens II 3 and lens
5；
Half-wave plate 10 is set on the exit facet that collimation lens 8 and PBS9, PBS9 are set on the emitting light path of optical fiber, and PBS9 will
After the laser beam light splitting of optical fiber, speculum 11 is set in the light path of S light reflection, S light reflects on speculum 11；P light
It is changed into S light outgoing after transmitted through half-wave plate 10, fly's-eye lens I 2, fly's-eye lens II 3 and lens is set gradually on emitting light path
5；The two-way S light of reflection and outgoing injects fly's-eye lens I 2 with identical angle, through fly's-eye lens II 3 and lens 5, realizes shimming
With the hot spot 6 after integer.
Embodiment 2
As shown in figure 3, the interior reflective surface 111 using internal reflector PBS91 on the basis of embodiment 1 realizes internal reflection,
Instead of the speculum 11 in embodiment 1, the overall structure of device is simplified.
Embodiment 3
As shown in figure 4, optical fiber 7 is incident perpendicular to the axis direction of fly's-eye lens 2 with collimation lens 8, through PBS91 light splitting, S light
Reflected through internal reflector PBS91, be directly incident on fly's-eye lens I 2, the P light after light splitting is passed through after the internal reflection of interior reflective surface 111
Half-wave plate 10 is converted into S light, with identical angle incidence fly's-eye lens I 2.The present embodiment advantageously reduces axial light path size,
Suitable for different spaces limitation.
Embodiment 4
In order to improve illumination luminous power, two fiber coupling modes can be used, as shown in figure 5, optical fiber 71, collimation lens
81st, internal reflector PBS91 and the composition S light outgoing components of half-wave plate 101, two groups of S light outgoing components are centrosymmetric setting, two groups
The light beam of optical fiber is located normal on the straight line of fly's-eye lens axis direction simultaneously in S light outgoing components.
The two light beams of the output of optical fiber 71 and 72, after collimated lens 81 and 82 are collimated, using internal reflector PBS91 and 92
It is polarized, P light is converted into S light through two panels half-wave plate 101 and 102, fly's-eye lens I 2 is irradiated in the lump, the S light after light splitting is in
The interior reflective surface 111 of speculum PBS91 and 92 reflects, and is directly incident on fly's-eye lens I 2, real through fly's-eye lens II 3 and lens 5
Hot spot 6 after existing shimming and integer.
Embodiment 5
In order to overcome limitation of the different spaces to light path design, can be using optical fiber and collimation lens parallel to fly's-eye lens axle
The mode of line is incident, as shown in Figure 6.
Embodiment 6
As shown in Figure 7, the present embodiment uses three optical fiber incidences, wherein the S light outgoing where optical fiber 71 and optical fiber 73
Component incident angle is consistent, and optical fiber 72 is located between optical fiber 71 and optical fiber 73, the S light outgoing component incident angles where optical fiber 72
180 degree is differed with the S light outgoing component incident angles where optical fiber 71 and optical fiber 73；Optical fiber 71,72 and 73 and collimation lens 81,
82 and 83 is incident in the way of parallel to the axis of fly's-eye lens I 2 and II 3, and light beam is distinguished collimated lens 81,82 and 83 and collimated
Afterwards, be polarized using internal reflector PBS91,92 and 93, P light be converted into S light through three half-wave plates 101,102 and 103, in the lump according to
It is mapped to fly's-eye lens I 2；S light after light splitting reflects through the interior reflective surface 111 of internal reflector PBS91,92 and 93, is directly incident on
Fly's-eye lens I 2 realizes the hot spot 6 after shimming and integer through fly's-eye lens II 3 and lens 5.
Embodiment 7
As shown in figure 8, it is a kind of be based on projection display equipment of the invention, including shimming integer type device part of the invention with
And Projection Display part.During work, LASER Light Source 71,72 through optical fiber output white laser, by after the collimation of collimation lens 81,82
It is collimated light beam, by being two beam P light and two beam S light after PBS91,92 light splitting, after P light is through wave plate 101,102, is converted into S light,
After four beam S light beams are converged through plus lens 5, the light splitting of X Amici prisms 15, green glow (or feux rouges, or blue light) reflected mirror 20 reflects
Afterwards, incident Lcos modules 12, through the image modulation of Lcos modules 12 after, incide beam cementing prism 13；After the light splitting of X Amici prisms 15
Other two kinds of light (green glow and blue light) reflected mirrors 17 reflect, and after the light splitting of spectroscope 18, be respectively radiated to Lcos modules 16,
19, through Lcos modules 16,19 image modulations after, incide beam cementing prism 13, realize Projection Display through projection lens 14.
Device is converted to fixed polarization state by incident natural light is efficient, through X mirrors and spectroscope be divided into it is red,
Green, Lan Sanlu light incides the modulation that light is carried out in respective Lcos, finally realizes the output of image.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (8)
1. a kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping, it is characterised in that the device includes optical fiber, standard
Straight lens, PBS, speculum, half-wave plate, fly's-eye lens I, fly's-eye lens II and lens；
Half-wave plate is set on the exit facet that collimation lens and PBS, PBS are set gradually on the emitting light path of the optical fiber, and PBS is by light
After fine laser beam light splitting, speculum is set in the light path of S light reflection, S light reflects on the mirror；P light transmission mistakes
It is changed into S light outgoing after half-wave plate, fly's-eye lens I, fly's-eye lens II and lens is set gradually on emitting light path；Reflection and outgoing
Two-way S light with identical angle incidence fly's-eye lens I, through fly's-eye lens II and lens, realize the hot spot after shimming and integer.
2. the laser display based on fly's-eye lens as claimed in claim 1 is polarized shimming apparatus for shaping, it is characterised in that utilize
Internal reflector PBS replaces the combination of PBS and speculum.
3. the laser display based on fly's-eye lens as claimed in claim 1 is polarized shimming apparatus for shaping, it is characterised in that pass through
Realize the output of P light in the position for changing half-wave plate.
4. the laser display based on fly's-eye lens as claimed in claim 2 is polarized shimming apparatus for shaping, it is characterised in that described
Optical fiber is set with collimation lens perpendicular to fly's-eye lens axis direction, and half-wave plate is arranged on the reflected light outgoing of internal reflector PBS
On face.
5. the laser display based on fly's-eye lens as claimed in claim 2 is polarized shimming apparatus for shaping, it is characterised in that described
Optical fiber, collimation lens, internal reflector PBS and half wave plate group are centrosymmetric and set into S light outgoing components, two groups of S light outgoing components
Put, the light beam of optical fiber is located normal on the straight line of fly's-eye lens axis direction simultaneously in two groups of S light outgoing components.
6. the laser display based on fly's-eye lens as claimed in claim 2 is polarized shimming apparatus for shaping, it is characterised in that alignment
Straight lens use collimated light beam when being input into, collimated light beam is to optical fiber output beam collimation or parallel using space using collimation lens
Light beam directly inputs to realize.
7. the laser display based on fly's-eye lens as described in claim 5 or 6 is polarized shimming apparatus for shaping, it is characterised in that
Using multifiber, various incident angle modes realize shimming integer and are polarized function.
8. the laser display based on fly's-eye lens as claimed in claim 7 is polarized shimming apparatus for shaping, it is characterised in that
Diffusion sheet is placed before PBS between incident light position or BPS and compound eye lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281561.7A CN106918921A (en) | 2017-04-26 | 2017-04-26 | A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281561.7A CN106918921A (en) | 2017-04-26 | 2017-04-26 | A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping |
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| Publication Number | Publication Date |
|---|---|
| CN106918921A true CN106918921A (en) | 2017-07-04 |
Family
ID=59568270
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710281561.7A Pending CN106918921A (en) | 2017-04-26 | 2017-04-26 | A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861178A (en) * | 2017-10-10 | 2018-03-30 | 青岛海信电器股份有限公司 | Compound eye lens group and apply its projection arrangement |
| CN109375330A (en) * | 2018-10-18 | 2019-02-22 | 哈尔滨工程大学 | A kind of alignment system and method for fiber array and fly lens |
| CN109782454A (en) * | 2018-12-17 | 2019-05-21 | 重庆爱奇艺智能科技有限公司 | A kind of polarization converter |
| WO2021027657A1 (en) * | 2019-08-14 | 2021-02-18 | 方强 | Optical homogenization system employing multiple fiber output laser modules, and machining head |
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| JPH09244021A (en) * | 1996-03-04 | 1997-09-19 | Casio Comput Co Ltd | Liquid crystal display device |
| US20040021832A1 (en) * | 2002-07-16 | 2004-02-05 | Chikara Yamamoto | Polarizing illumination optical system and projection-type display device which uses same |
| CN101169520A (en) * | 2006-11-16 | 2008-04-30 | 中国科学院长春光学精密机械与物理研究所 | Polarized light conversion device for liquid crystal projection display |
| CN102004321A (en) * | 2010-08-27 | 2011-04-06 | 浙江金成科技发展有限公司 | Optical structure of LED liquid crystal projector with single polarization converter |
| JP2015210488A (en) * | 2014-04-30 | 2015-11-24 | キヤノン株式会社 | Illumination optical system and image display device having the same |
| CN206906709U (en) * | 2017-04-26 | 2018-01-19 | 北京镭创高科光电科技有限公司 | A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping |
-
2017
- 2017-04-26 CN CN201710281561.7A patent/CN106918921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09244021A (en) * | 1996-03-04 | 1997-09-19 | Casio Comput Co Ltd | Liquid crystal display device |
| US20040021832A1 (en) * | 2002-07-16 | 2004-02-05 | Chikara Yamamoto | Polarizing illumination optical system and projection-type display device which uses same |
| CN101169520A (en) * | 2006-11-16 | 2008-04-30 | 中国科学院长春光学精密机械与物理研究所 | Polarized light conversion device for liquid crystal projection display |
| CN102004321A (en) * | 2010-08-27 | 2011-04-06 | 浙江金成科技发展有限公司 | Optical structure of LED liquid crystal projector with single polarization converter |
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| CN206906709U (en) * | 2017-04-26 | 2018-01-19 | 北京镭创高科光电科技有限公司 | A kind of laser display based on fly's-eye lens is polarized shimming apparatus for shaping |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861178A (en) * | 2017-10-10 | 2018-03-30 | 青岛海信电器股份有限公司 | Compound eye lens group and apply its projection arrangement |
| CN109375330A (en) * | 2018-10-18 | 2019-02-22 | 哈尔滨工程大学 | A kind of alignment system and method for fiber array and fly lens |
| CN109375330B (en) * | 2018-10-18 | 2021-03-30 | 哈尔滨工程大学 | System and method for aligning optical fiber array and fly-eye lens |
| CN109782454A (en) * | 2018-12-17 | 2019-05-21 | 重庆爱奇艺智能科技有限公司 | A kind of polarization converter |
| WO2021027657A1 (en) * | 2019-08-14 | 2021-02-18 | 方强 | Optical homogenization system employing multiple fiber output laser modules, and machining head |
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Application publication date: 20170704 |