JPH0353609B2 - - Google Patents

Info

Publication number
JPH0353609B2
JPH0353609B2 JP57013774A JP1377482A JPH0353609B2 JP H0353609 B2 JPH0353609 B2 JP H0353609B2 JP 57013774 A JP57013774 A JP 57013774A JP 1377482 A JP1377482 A JP 1377482A JP H0353609 B2 JPH0353609 B2 JP H0353609B2
Authority
JP
Japan
Prior art keywords
light
hole
subject
photoelectric
photocathode
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.)
Expired - Lifetime
Application number
JP57013774A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58131776A (ja
Inventor
Yoshio Shishido
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP57013774A priority Critical patent/JPS58131776A/ja
Priority to US06/442,087 priority patent/US4538062A/en
Priority to EP82306169A priority patent/EP0080340B1/en
Priority to AT82306169T priority patent/ATE21778T1/de
Priority to DE8282306169T priority patent/DE3272935D1/de
Publication of JPS58131776A publication Critical patent/JPS58131776A/ja
Publication of JPH0353609B2 publication Critical patent/JPH0353609B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Light Receiving Elements (AREA)
  • Focusing (AREA)
JP57013774A 1981-11-19 1982-01-29 光電素子 Granted JPS58131776A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP57013774A JPS58131776A (ja) 1982-01-29 1982-01-29 光電素子
US06/442,087 US4538062A (en) 1981-11-19 1982-11-16 Focusing detecting device with coaxial source and detector
EP82306169A EP0080340B1 (en) 1981-11-19 1982-11-19 A device for detecting the focused state of an optical system
AT82306169T ATE21778T1 (de) 1981-11-19 1982-11-19 Vorrichtung fuer die detektion des fokussierungszustandes eines optisches system.
DE8282306169T DE3272935D1 (en) 1981-11-19 1982-11-19 A device for detecting the focused state of an optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57013774A JPS58131776A (ja) 1982-01-29 1982-01-29 光電素子

Publications (2)

Publication Number Publication Date
JPS58131776A JPS58131776A (ja) 1983-08-05
JPH0353609B2 true JPH0353609B2 (enrdf_load_stackoverflow) 1991-08-15

Family

ID=11842589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57013774A Granted JPS58131776A (ja) 1981-11-19 1982-01-29 光電素子

Country Status (1)

Country Link
JP (1) JPS58131776A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5266448A (en) * 1975-11-28 1977-06-01 Hitachi Ltd Automatic focusing system

Also Published As

Publication number Publication date
JPS58131776A (ja) 1983-08-05

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