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특허 상세정보

Uniform illumination of large, thin surfaces particularly suited for automotive applications

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F21V-007/04   
미국특허분류(USC) 362/31 ; 362/26 ; 362/32 ; 362/61
출원번호 US-0496485 (1990-03-20)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 45  인용 특허 : 0
초록

A thin, efficient and uniform illuminator for large areas comprises a plastic wedge of a series of plastic wedges applied to or formed integrally with a back surface of an area to be illuminated. Light is collected and concentrated from a high efficiency light source. The concentrated light is focused as an input to one or more light guides. The light guides may be optical fibers. The light guides or fibers are fused or mated in some other way to an edge or edges of an optically clear plastic wedge or wedges. The wedge shape increases the angle of the in...

대표
청구항

An illuminator for large surface areas comprising: a transparent wedge having back and front surfaces and a generally rectangular shaped edge between said surfaces, said front surface being co-extensive with an area to be illuminated; a high efficiency light source; at least one light guide optically coupling light from said light source to said rectangular shaped edge so that light entering the wedge is internally reflected from the back surface and emitted from said front surface, and, wherein said wedge is provided with scattering centers throughout i...

이 특허를 인용한 특허 피인용횟수: 45

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