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KR940005967A - Magneto-optical scanning device comprising a polarization-sensitive beam splitter, a method of manufacturing the same and a beam splitter - Google Patents

Magneto-optical scanning device comprising a polarization-sensitive beam splitter, a method of manufacturing the same and a beam splitter Download PDF

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Publication number
KR940005967A
KR940005967A KR1019930011291A KR930011291A KR940005967A KR 940005967 A KR940005967 A KR 940005967A KR 1019930011291 A KR1019930011291 A KR 1019930011291A KR 930011291 A KR930011291 A KR 930011291A KR 940005967 A KR940005967 A KR 940005967A
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South Korea
Prior art keywords
beam splitter
wedge
polarization
shaped
sensitive beam
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KR1019930011291A
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KR100282101B1 (en
Inventor
아타 무슈타파 힉메트 리파트
게라르트 오페이 빌렘
요하네스 마리아 브라트 요세푸스
Original Assignee
에프.제이.슈미트
필립스 일렉트로닉스 엔.파우.
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Optical Head (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE: To provide a splitter which is small in size and is light in weight by providing a wedgelike element formed of a unidirectionally oriented polymer material composed of a setting liquid crystal monomer composition. CONSTITUTION: The beam splitter is formed of the wedgelike element 1 composed of the unidirectionally oriented polymer material. Namely, the orientation of molecules of the wedgelike element 1 in a direction 2 is so selected that it is perpendicular to the optical axis of the element and parallel to the narrow end of the wedge, and an incident unpolarized beam 3 is split into an extraordinary light beam 4 and an ordinary light beam 5 which have mutually different polarizing directions. The angle value between the two output beams is proportional to the wedge angle and its birefringence value. Since the birefringence of the polymer material in use is relatively large, a relatively small wedge angle may be selected so as to actualize a given output beam angle. The wedge angle is determinative to the thickness of the beam splitter, so this beam splitter can be made thinner than a quartz beam splitter.

Description

편광 감지성 비임 분할기, 이의 제조방법 및 비임 분할기를 포함하는 자기 광학 주사장치Magneto-optical scanning device comprising a polarization-sensitive beam splitter, a method of manufacturing the same and a beam splitter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 발명에 따른 쐐기형 소자를 형성하는데 적합한 단량체를 나타낸 것이고,1 shows a monomer suitable for forming a wedge-shaped device according to the invention,

제5도는 편광 감지성 비임분할기기에 사용하기 위한 쐐기형(wedge-shaped) 소자를 도시한 것이고,5 shows a wedge-shaped element for use in a polarization sensitive non-dividing device,

제6도는 2개의 쐐기형 소자를 포함하는 편광 감지성 비임 분할기의 2개의 상이한 양태를 도시한 것이며,6 shows two different aspects of a polarization sensitive beam splitter comprising two wedge shaped elements,

제9도는 자기 광학 기록 반송자를 주사하는 장치를 도시한 것이며,9 shows an apparatus for scanning a magneto-optical record carrier,

제10도는 자기 광학 기록 반송자를 주사하는 장치를 도시한 것이다.10 shows a device for scanning a magneto-optical record carrier.

Claims (8)

쐐기형 소자가 경화된 액정 단량체 조성물로부터 제조된 단축 배향 중합체 물질을 포함함을 특징으로 하는, 복굴절 물질로 이루어진 하나 이상의 투명한 쐐기형 소자를 포함하는 편광 감지성 비임 분할기.A polarization-sensitive beam splitter comprising at least one transparent wedge-shaped element made of birefringent material, characterized in that the wedge-shaped element comprises a uniaxially oriented polymeric material made from a cured liquid crystal monomer composition. 제1항에 있어서, 2개의 쐐기형 소자의 중합체 물질의 배향 방향이 서로 상이함을 특징으로 편광 감지성 비임 분할기.The polarization-sensitive beam splitter according to claim 1, wherein the orientation directions of the polymer materials of the two wedge-shaped devices are different from each other. 제1항에 있어서, 중합체 물질의 배향 방향이 외부의 2개는 동일하나 내부 소자의 배향 방향과는 상이한 내부 소자의 양옆에 2개의 외부 소자가 배열되어 있는 3개의 쐐기형 소자를 특징으로 하는 편광 감지성 비임 분할기.The polarization device of claim 1, wherein the polymer material has three wedge-shaped elements in which two external elements are arranged on both sides of an internal element, wherein two external elements are the same but different from the internal direction. Sensitive Beam Splitter. 제1항, 제2항 또는 제3항에 있어서, 입사 표면(entrance surface) 및 출사 표면(exit surface) 중의 하나 이상에 반사 방지 격자가 제공되어 있음을 특징으로 하는 편광 감지성 비임 분할기.4. A polarization sensitive beam splitter according to claim 1, 2 or 3, characterized in that an antireflective grating is provided on at least one of an entrance surface and an exit surface. 제2항. 제3항 또는 제4항에 있어서, 쐐기형 소자에서 중합체 물질의 2개의 배향 방향 사잇각이 45°이상임을 특징으로 하는 편광 감지성 비임 분할기.Article 2. The polarization-sensitive beam splitter according to claim 3 or 4, wherein the two orientation directions of the polymer material in the wedge-shaped device are 45 degrees or more. 주사 비임을 공급하기 위한 광원, 주사 비임을 기록 반송자의 정보면 위에 향하게 하기 위한 광학 시스템, 기록 반송자로부터 주사 비임의 경로내에 배열된 감광성 감지 시스템과 제1항, 제2항, 제3항, 제4항 또는 제5항에 청구된 바와 같은 편광 감지성 비임 분할기를 포함하고 감지 시스템 앞의 상기 경로에 배열된 자기 광학 기록 반송자 주사용 장치.A light source for supplying a scanning beam, an optical system for directing the scanning beam onto the information carrier's information surface, a photosensitive sensing system arranged in the path of the scanning beam from the recording carrier, and the first, second and third, Apparatus for magneto-optical record carrier scanning comprising a polarization sensitive beam splitter as claimed in claim 4 or 5 and arranged in said path in front of the sensing system. 두개의 기판에 배향층을 각각 제공하고, 쐐기형 내부 공간을 형성하면서 기관이 배향층과 서로 마주보도록 배열하고, 내부 공간을 계속해서 경화되는 액정 단량체 조성물로 충전시키면서 쐐기형 소자를 형성하고, 경우에 따라, 기판을 제거함을 특징으로 하는, 복굴절 물질로 이루어진 하나 이상의 투명한 쐐기형 소자를 포함하는 편광 감지성 비임 분할기의 제조방법.Each of the two substrates is provided with an alignment layer, the wedge shaped elements are arranged so that the organs face each other while forming the wedge shaped inner space, and the wedge shaped device is formed while the inner space is continuously filled with a liquid crystal monomer composition which is cured. According to claim 1, characterized in that for removing the substrate, a method of manufacturing a polarization-sensitive beam splitter comprising at least one transparent wedge-shaped element of birefringent material. 제7항에 있어서, 배향 방향이 상이한 단축 배향 중합체 물질의 제2의 투명한 쐐기형 소자를 유사한 방법으로 형성하고 광학적으로 중성인 접착제를 이용하여 2개의 쐐기형 소자를 결합시킴을 특징으로 하는 방법.8. The method of claim 7, wherein a second transparent wedge shaped device of uniaxially oriented polymeric material having a different orientation direction is formed in a similar manner and the two wedge shaped devices are joined using an optically neutral adhesive. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930011291A 1992-06-23 1993-06-21 Magneto-optical scanning device comprising a polarization-sensitive beam splitter, a manufacturing method thereof and a beam splitter Expired - Fee Related KR100282101B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP92201837.9 1992-06-23
EP92201837 1992-06-23
EP92204087 1992-12-28
EP92204087.8 1992-12-28

Publications (2)

Publication Number Publication Date
KR940005967A true KR940005967A (en) 1994-03-22
KR100282101B1 KR100282101B1 (en) 2001-02-15

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KR1019930011291A Expired - Fee Related KR100282101B1 (en) 1992-06-23 1993-06-21 Magneto-optical scanning device comprising a polarization-sensitive beam splitter, a manufacturing method thereof and a beam splitter

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JP (1) JPH0659125A (en)
KR (1) KR100282101B1 (en)
CN (1) CN1061443C (en)
AT (1) ATE160884T1 (en)
DE (1) DE69315484T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2368133A (en) * 2000-10-13 2002-04-24 Sharp Kk Polarisation conversion system, optical lens array and projection display system
US6824654B2 (en) * 2002-10-01 2004-11-30 Asml Holding N.V. Method of making a cube
CN101551542B (en) * 2009-05-14 2011-08-31 复旦大学 Electric control switch type holographic polymer dispersed liquid crystal diffractive beam splitter
US9158072B2 (en) * 2011-10-31 2015-10-13 Finisar Corporation Multicast optical switch
JP6709899B2 (en) * 2016-03-28 2020-06-17 パナソニックＩｐマネジメント株式会社 Blower fan and blower unit using the same
CN109116635A (en) * 2018-10-11 2019-01-01 北京航空航天大学 A kind of liquid crystal polarization gratings preparation method

Also Published As

Publication number Publication date
DE69315484D1 (en) 1998-01-15
CN1080729A (en) 1994-01-12
ATE160884T1 (en) 1997-12-15
DE69315484T2 (en) 1998-06-04
JPH0659125A (en) 1994-03-04
KR100282101B1 (en) 2001-02-15
CN1061443C (en) 2001-01-31

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