JPS522482A - Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity - Google Patents

Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity

Info

Publication number
JPS522482A
JPS522482A JP7830675A JP7830675A JPS522482A JP S522482 A JPS522482 A JP S522482A JP 7830675 A JP7830675 A JP 7830675A JP 7830675 A JP7830675 A JP 7830675A JP S522482 A JPS522482 A JP S522482A
Authority
JP
Japan
Prior art keywords
detecting
distance
high sensitivity
contrast variation
reference contrast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7830675A
Other languages
Japanese (ja)
Inventor
Shinzo Shioda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP7830675A priority Critical patent/JPS522482A/en
Publication of JPS522482A publication Critical patent/JPS522482A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:High sensitivity detection of an object passing through a given distance by combining two or more lenses in front of the CDS of a detection station and focussing a required distance.
JP7830675A 1975-06-23 1975-06-23 Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity Pending JPS522482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7830675A JPS522482A (en) 1975-06-23 1975-06-23 Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7830675A JPS522482A (en) 1975-06-23 1975-06-23 Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity

Publications (1)

Publication Number Publication Date
JPS522482A true JPS522482A (en) 1977-01-10

Family

ID=13658234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7830675A Pending JPS522482A (en) 1975-06-23 1975-06-23 Non-reference contrast variation detecting system for detecting a spec ific distance with a high sensitivity

Country Status (1)

Country Link
JP (1) JPS522482A (en)

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