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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Surface light source device with polarization function

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G02B-005/30    G02B-006/10    F21V-007/04    F21V-009/14   
미국특허분류(USC) 359/487 ; 359/495 ; 385/146 ; 385/043 ; 385/901 ; 362/019 ; 362/032 ; 349/062
출원번호 US-0403323 (1995-03-13)
우선권정보 JP-0083717 (1994-03-31)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Staas & Halsey
인용정보 피인용 횟수 : 103  인용 특허 : 14
초록
▼

Light is supplied into a light incident surface 2 from a fluorescent lamp L enclosed by a silver foil sheet R, and parallelized illuminating light flux is taken out from a light exit surface 3. On a back surface 4 side of a light flux parallelizer 1, across or without a thin air layer 5, a polarization converter .EPSILON. is disposed. The polarization converter .EPSILON. reinforces the polarization function of the surface light source device through polarization conversion action accompanying reflection in the prism. At a position confronting the light e...

대표
청구항
▼

[ What is claimed is:] [1.] A surface light source device with polarization function comprising:a light flux parallelizer composed of a plate form light scattering light guide having a wedge shaped section, and light feed means disposed at the thicker end side of the light flux parallelizer, andlight permeable polarization separating means having reflection characteristic depending on polarization components, being disposed so as to extend along the light exit surface of the light flux parallelizer,wherein the polarization separating means comprises a po...

이 특허에 인용된 특허 (14)

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  13. Winston Roland (Chicago IL) Jacobson Benjamin A. (Chicago IL) Holman Robert L. (Naperville IL) Gitkind Neil A. (Chicago IL). Tapered multilayer luminaire devices. USP1994045303322.
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