CN102375247A - Polarized coupling system - Google Patents
Polarized coupling system Download PDFInfo
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- CN102375247A CN102375247A CN2011103279709A CN201110327970A CN102375247A CN 102375247 A CN102375247 A CN 102375247A CN 2011103279709 A CN2011103279709 A CN 2011103279709A CN 201110327970 A CN201110327970 A CN 201110327970A CN 102375247 A CN102375247 A CN 102375247A
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Abstract
The invention relates to a polarized structure, which is used for fully converting a beam of natural light into linear polarized light for outputting. The polarized structure is formed by compounding a right-angle prism, a rhombic prism, a revolver and a lens beam expanding lens group. The polarized structure has high conversion efficiency and high linear polarization light transmission rate, and is easy for batch production. A Brewster window sheet is arranged behind a lens beam expanding lens, so that emergent light and incident light are on the same straight line.
Description
Technical field
The invention belongs to the optical element field, especially relate to a kind of polarization coupled system.
Background technology
Polarizer is widely used in fields such as national defence, scientific research, production, teaching; Especially the polarizer of the good high-polarization of performance, high permeability; Used widely in the optical instrument with various precisions, for example ultraviolet one visible light light-splitting luminosity, ellipsometer, high polarization are than laser instrument etc.
At present, polarizer mainly contains two big types: the first kind is to be made up of crystalline material, and the material that is commonly used to make polarizer is generally by icelandspar, α-bbo crystal, YVO
4The general polarization structure that adopts is Glan laser, Glan Taylor or glan thompson prism, is characterized in good in optical property, and degree of polarization is high, but inconvenient machining, expensive.Second type is on optical glass, to be coated with the processing of multilayered medium polarization beam splitter to combine, and is characterized in low price.
At present, polarizer output polarization transmitance only is part P light or S light, and transmitance is very low, thereby is necessary to occur the higher polarizer of a kind of conversion efficiency.
Summary of the invention
Present natural light converts polarized light into, and only remaining part P light or O light are linearly polarized light output, and polarization conversion efficiency is low.
It is not enough to the objective of the invention is to overcome seeing through of present polarizing prism; Make full use of combination of devices; All convert natural light to linearly polarized light output, the structure of employing is that a slice right-angle prism, a slice rhombic prism, a slice polarization polarization apparatus, one group of expanded beam lens group and a slice Brewster window are coupled to form.
Description of drawings
Fig. 1 is an a kind of polarization coupled of the present invention system.
Fig. 2 is an a kind of polarization coupled of the present invention system.
Specific embodiment
Like Fig. 1,1 is that right-angle prism, 2 is that rhombic prism, 3 is that λ/2 wave plates, 4 and 5 are one group of expanded beam lens group.All mirror polish that light passes through, the inclined-plane of right-angle prism or the inclined-plane of rhombic prism plating polarizing beam splitting film connect through gummed or optical cement, and λ/2 wave plates are connected with rhombic prism gummed or optical cement, are assembled in the support the inside with expanded beam lens group.Light incides rhombic prism, and in the interfacial polarization beam splitting, P light transmission, S light are reflected into and are mapped to λ/2 wave plates; Through behind λ/2 wave plates; S light becomes the P polarized light, and the P polarized light process lens beam-expanding system that two bundles are parallel narrows down to light beam the same with incident beam big or littler.
Like Fig. 2,1 is that right-angle prism, 2 is that rhombic prism, 3 is that λ/2 wave plates, 4 and 5 are that one group of expanded beam lens group, 6 is the Brewster window.All mirror polish that light passes through, the inclined-plane of right-angle prism or the inclined-plane of rhombic prism plating polarizing beam splitting film connect through gummed or optical cement, and λ/2 wave plates are connected with rhombic prism gummed or optical cement, are assembled in the support the inside with expanded beam lens group.Light incides rhombic prism, and in the interfacial polarization beam splitting, P light transmission, S light are reflected into and are mapped to λ/2 wave plates; Through behind λ/2 wave plates; S light becomes the P polarized light, and the P polarized light process lens beam-expanding system that two bundles are parallel narrows down to light beam the same with incident beam big or littler; The Brewster window on a line, increases the extinction ratio of polarization coupled system with light translation and incident light in addition.
Claims (4)
1. a polarization coupled system comprises that a slice right-angle prism, a slice rhombic prism, a slice polarization polarization apparatus and one group of expanded beam lens group are composited, and it is characterized in that the inclined-plane of right-angle prism or the inclined-plane of rhombic prism are coated with polarizing beam splitting film.
2. a kind of polarization coupled according to claim 1 system is characterized in that polarization rotator can be 1/2 wave plate, 90 degree spinners.
3. a kind of polarization coupled according to claim 1 system is characterized in that the parallel combiner that adopts the lens beam expanding lens that two bundle polarization directions are consistent.
4. a kind of polarization coupled according to claim 1 system is characterized in that adopting the Brewster window with the exit direction deflection of P polarization and incident direction in a straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103279709A CN102375247A (en) | 2011-10-26 | 2011-10-26 | Polarized coupling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103279709A CN102375247A (en) | 2011-10-26 | 2011-10-26 | Polarized coupling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102375247A true CN102375247A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103279709A Withdrawn CN102375247A (en) | 2011-10-26 | 2011-10-26 | Polarized coupling system |
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| CN (1) | CN102375247A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967943A (en) * | 2012-12-12 | 2013-03-13 | 福建福晶科技股份有限公司 | High-transparency polarization module |
| CN103217803A (en) * | 2013-04-09 | 2013-07-24 | 中国科学院半导体研究所 | Polarization coupling device for semi-conductor laser device adopting prism |
| CN103424893A (en) * | 2013-08-23 | 2013-12-04 | 西安电子科技大学 | Optical polarization converter and manufacturing method thereof |
| CN103869625A (en) * | 2012-12-07 | 2014-06-18 | 上海微电子装备有限公司 | Polarization lighting device and polarization illumination method |
| CN104976297A (en) * | 2014-04-14 | 2015-10-14 | 睿励科学仪器（上海）有限公司 | Mechanical transmission device of full-automatic standard ellipsometer |
| CN103854669B (en) * | 2012-12-04 | 2017-12-26 | 希捷科技有限公司 | Polarization rotator |
| CN113495374A (en) * | 2020-03-20 | 2021-10-12 | 中国科学院西安光学精密机械研究所 | Method and system for improving diffraction efficiency of acousto-optic tunable filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388521A (en) * | 2008-10-14 | 2009-03-18 | 福州高意通讯有限公司 | Method realizing adjustment of laser frequency difference and laser thereof |
| CN101688940A (en) * | 2007-05-09 | 2010-03-31 | 瑞尔·D公司 | Polarization conversion system and method for stereoscopic projection |
| CN102004326A (en) * | 2010-10-22 | 2011-04-06 | 福州高意通讯有限公司 | Depolarization delay device |
-
2011
- 2011-10-26 CN CN2011103279709A patent/CN102375247A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688940A (en) * | 2007-05-09 | 2010-03-31 | 瑞尔·D公司 | Polarization conversion system and method for stereoscopic projection |
| CN101388521A (en) * | 2008-10-14 | 2009-03-18 | 福州高意通讯有限公司 | Method realizing adjustment of laser frequency difference and laser thereof |
| CN102004326A (en) * | 2010-10-22 | 2011-04-06 | 福州高意通讯有限公司 | Depolarization delay device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854669B (en) * | 2012-12-04 | 2017-12-26 | 希捷科技有限公司 | Polarization rotator |
| CN103869625A (en) * | 2012-12-07 | 2014-06-18 | 上海微电子装备有限公司 | Polarization lighting device and polarization illumination method |
| CN103869625B (en) * | 2012-12-07 | 2016-07-06 | 上海微电子装备有限公司 | Polarized lighting device and polarization illumination method |
| CN102967943A (en) * | 2012-12-12 | 2013-03-13 | 福建福晶科技股份有限公司 | High-transparency polarization module |
| CN103217803A (en) * | 2013-04-09 | 2013-07-24 | 中国科学院半导体研究所 | Polarization coupling device for semi-conductor laser device adopting prism |
| CN103424893A (en) * | 2013-08-23 | 2013-12-04 | 西安电子科技大学 | Optical polarization converter and manufacturing method thereof |
| CN103424893B (en) * | 2013-08-23 | 2015-11-11 | 西安电子科技大学 | Optical polarization converter and preparation method thereof |
| CN104976297A (en) * | 2014-04-14 | 2015-10-14 | 睿励科学仪器（上海）有限公司 | Mechanical transmission device of full-automatic standard ellipsometer |
| CN104976297B (en) * | 2014-04-14 | 2017-12-05 | 睿励科学仪器（上海）有限公司 | The mechanical driving device of full automatic standard ellipsometer |
| CN113495374A (en) * | 2020-03-20 | 2021-10-12 | 中国科学院西安光学精密机械研究所 | Method and system for improving diffraction efficiency of acousto-optic tunable filter |
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Application publication date: 20120314 |
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| WW01 | Invention patent application withdrawn after publication |