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특허 상세정보

Apparatus for detecting edge of semitransparent plane substance

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01N-021/86   
미국특허분류(USC) 250/560; 250/561; 250/222.1; 356/386
출원번호 US-0498726 (1983-05-27)
우선권정보 JP-0093046 (1982-06-02); JP-0121292 (1982-07-14); JP-0050642 (1983-03-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Staas & Halsey
인용정보 피인용 횟수 : 86  인용 특허 : 3
초록

An apparatus for detecting an edge of a semitransparent plane substance provided with a light source array including a plurality of light sources and a photosensor array including a plurality of photosensors. A selection circuit selects a pair of one of the light sources and one of the photosensors, respectively, and a comparator circuit compares the outputs of each of the photosensors in each pair when no detected substance exists between the light source array and the photosensor array, and the corresponding outputs when a substance exists between the ...

대표
청구항

1. An apparatus for detecting an edge of a semitransparent plane substance provided with a light source array including a plurality of light sources and a photosensor array including a plurality of photosensors having outputs, comprising: means, operatively connected to the light source array and said photosensor array, for selecting a light source and photosensor pair and for providing a selection signal; means, operatively connected to said selecting means, for driving the selected light source and photosensor pair; and means, operatively connecte...

이 특허를 인용한 특허 피인용횟수: 86

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