JPS57119313A - Display of focus adjusting state - Google Patents

Display of focus adjusting state

Info

Publication number
JPS57119313A
JPS57119313A JP575481A JP575481A JPS57119313A JP S57119313 A JPS57119313 A JP S57119313A JP 575481 A JP575481 A JP 575481A JP 575481 A JP575481 A JP 575481A JP S57119313 A JPS57119313 A JP S57119313A
Authority
JP
Japan
Prior art keywords
focusing
display
user
focus adjusting
ledc
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
JP575481A
Other languages
Japanese (ja)
Inventor
Mitsuya Hosoe
Takashi Suzuki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP575481A priority Critical patent/JPS57119313A/en
Publication of JPS57119313A publication Critical patent/JPS57119313A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To facilitate the operation of user according to the preference of a user and the conditions of lenses, etc., by providing an outer operating means which switches focusing, front focusing and back focusing. CONSTITUTION:The output of a display circuit DISP is supplied via a display mode changeover switch 24 to the LEDA, LEDB and LEDC which show the front focusing, focusing and back focusing respectively. It is possible to display the back focusing by the LEDA and the front focusing by the LEDC by operating the switch 24 by means of an external operating means 38. And only the focusing is displayed by the LEDB. With use of such external switching means, the focusing mode is easily switched according to the preference of a user, the conditions of lenses, etc.
JP575481A 1981-01-17 1981-01-17 Display of focus adjusting state Pending JPS57119313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP575481A JPS57119313A (en) 1981-01-17 1981-01-17 Display of focus adjusting state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP575481A JPS57119313A (en) 1981-01-17 1981-01-17 Display of focus adjusting state

Publications (1)

Publication Number Publication Date
JPS57119313A true JPS57119313A (en) 1982-07-24

Family

ID=11619899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP575481A Pending JPS57119313A (en) 1981-01-17 1981-01-17 Display of focus adjusting state

Country Status (1)

Country Link
JP (1) JPS57119313A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127704A (en) * 2005-11-01 2007-05-24 Fujinon Corp Lens system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127704A (en) * 2005-11-01 2007-05-24 Fujinon Corp Lens system

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