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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Automatic focusing device of a microscope

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01J-001/20   
미국특허분류(USC) 250/201
출원번호 US-0180150 (1980-08-21)
우선권정보 JP-0110363 (1979-08-31); JP-0138271 (1979-10-27); JP-0112305 (1980-08-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 74  인용 특허 : 3
초록
▼

An automatic focusing device of a microscope having an objective lens and a stage on which a specimen is placed comprises distance varying means for varying the relative distance between the objective lens and the stage, distance detecting means for producing a distance output corresponding to said distance, photoelectric detector means for photoelectrically detecting a high frequency component of the space frequency component of the image of the specimen on the stage by the objective lens, judging means for judging whether or not a predetermined peak sm...

대표
청구항
▼

An automatic focusing device of a microscope having an objective lens and a stage on which a specimen is placed, said device comprising: (a) distance varying means for varying the relative distance between said objective lens and said stage; (b) distance detecting means for producing a distance output corresponding to said distance; (c) photoelectric detector means for photoelectrically detecting a high frequency component of the space frequency component of the image of the specimen by said objective lens; (d) judging means for judging whether or not a ...

이 특허에 인용된 특허 (3)

  1. Utagawa Ken (Yokohama JPX) Hoshino Kunihisa (Kawasaki JPX) Shirasu Hiroshi (Kawasaki JPX) Ogasawara Akira (Yokohama JPX). Focus detecting device. USP1981104297571.
  2. Stauffer Norman L. (Englewood CO) Wilwerding Dennis J. (Littleton CO). Low frequency enhancement range finding equipment. USP1981034254330.
  3. Green James E. (Box 734 Fayetteville TN 37334). Method and apparatus for dual resolution analysis of a scene. USP1976073970841.

이 특허를 인용한 특허 피인용횟수: 74

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