JPH0548454B2 - - Google Patents

Info

Publication number
JPH0548454B2
JPH0548454B2 JP57058453A JP5845382A JPH0548454B2 JP H0548454 B2 JPH0548454 B2 JP H0548454B2 JP 57058453 A JP57058453 A JP 57058453A JP 5845382 A JP5845382 A JP 5845382A JP H0548454 B2 JPH0548454 B2 JP H0548454B2
Authority
JP
Japan
Prior art keywords
lens
image
secondary imaging
images
image forming
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
JP57058453A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58174913A (ja
Inventor
Susumu Matsumura
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 JP5845382A priority Critical patent/JPS58174913A/ja
Publication of JPS58174913A publication Critical patent/JPS58174913A/ja
Publication of JPH0548454B2 publication Critical patent/JPH0548454B2/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
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
    • G02B7/343—Systems for automatic generation of focusing signals using different areas in a pupil plane using light beam separating prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
JP5845382A 1982-04-08 1982-04-08 合焦検知装置 Granted JPS58174913A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5845382A JPS58174913A (ja) 1982-04-08 1982-04-08 合焦検知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5845382A JPS58174913A (ja) 1982-04-08 1982-04-08 合焦検知装置

Publications (2)

Publication Number Publication Date
JPS58174913A JPS58174913A (ja) 1983-10-14
JPH0548454B2 true JPH0548454B2 (enrdf_load_stackoverflow) 1993-07-21

Family

ID=13084839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5845382A Granted JPS58174913A (ja) 1982-04-08 1982-04-08 合焦検知装置

Country Status (1)

Country Link
JP (1) JPS58174913A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243611A (ja) * 1985-08-22 1987-02-25 Canon Inc 焦点検出用光学系
JP2532460B2 (ja) * 1987-04-30 1996-09-11 キヤノン株式会社 原稿読取装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295221A (en) * 1976-02-04 1977-08-10 Minolta Camera Co Ltd Detector for focusing

Also Published As

Publication number Publication date
JPS58174913A (ja) 1983-10-14

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