[특허]Head up display with incident light filter

Head up display with incident light filter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09G-005/00
출원번호	US-0479253 (1995-06-07)
발명자 / 주소	Borrego Diego A. (Lafayette IN) Greenland Alan R. (Westfield IN) Allison Charles R. (Flint MI) Bordo Robert A. (Harrison Township MI) Stringfellow Steven A. (Oakland MI)
출원인 / 주소	Delco Electronics Corporation (Kokomo IN 02)
인용정보	피인용 횟수 : 97 인용 특허 : 0

초록 ▼

Glare and spurious reflections of external light on the image source of a head up display are eliminated by a circular polarizer in the optical path of the display. The head up display includes a mirror system for projecting a pattern from the image source onto a vehicle windshield where it is reflected to the operator, wherein polarization is effected at the windshield reflection. The circular polarizer includes a linear polarizer and a quarter wave plate arranged to extinguish the external incident light after reflection from the image source. The linear polarizer axis is aligned with the polarization axis at the windshield to optimize the brightness of the display.

대표청구항 ▼

A head up display for reflecting information from a combiner wherein the angle of reflection effects light polarization, the display including optical filtering of extraneous reflections due to external incident light comprising: a light emitting image source for generating display information, the image source comprising selectively energized segments subject to undesired illumination by external light incident on the combiner; an optical system for projecting light from the image source onto the combiner at an incident angle near Brewster\s angle to define a horizontal axis of polarization for light reflected from the combiner that originates from the image source; and a circular polarizer between the optical system and the image source for suppressing external incident light reflected from the display surface, the circular polarizer comprising a linear polarizer and quarter-wave plate in combination, the linear polarizer and quarter-wave plate being disposed to circularly polarized external incident light reaching the image source and to absorb such polarized light after reflection from the image source, and the linear polarizer having a polarization axis substantially parallel to the horizontal axis of polarization for horizontally polarizing light projected onto the combiner that originates from the image source to maximize the display efficiency.

이 특허를 인용한 특허 (97)

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Westort, Kenneth S.; Robinson, Douglas L.; Turner, Randolph J., Method of ghost reduction and transmission enhancement for a real image projection system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Head up display with incident light filter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (97)

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연합인증

Head up display with incident light filter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (97)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

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