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특허 상세정보

Distance measurement device

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G02B-021/06   
미국특허분류(USC) 356/390 ; 356/390 ; 356/388 ; 356/338
출원번호 US-0075195 (1998-05-11)
우선권정보 JP-0120500 (1997-05-12)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Pillsbury Madison & Sutro LLP
인용정보 피인용 횟수 : 22  인용 특허 : 4
초록

A distance measurement device of the present invention detects a subject image with separation from the background and determines the distance to the subject regardless of backlit or forelit situations. In the distance measurement device, the subject is imaged onto two sensor arrays through different optical paths having parallax. The displacement of one of image signals output from the sensor arrays relative to the other is detected to determine the distance to the subject. On the basis of output signals of the sensor arrays, an object detector unit in ...

대표
청구항

[ I claim:] [1.] A distance measurement device which forms each of two images of a subject which are incident through two optical paths having parallax onto a respective one of two opto-electric conversion sensor arrays and senses the displacement of one of two images signals output from the sensor arrays relative to the other to thereby determine the distance to the subject, comprising:object determining means responsive to output signals of the sensor arrays for determining those areas on the sensor arrays which correspond to the main subject; andopera...

이 특허를 인용한 특허 피인용횟수: 22

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