JPS5671380A - Television camera - Google Patents

Television camera

Info

Publication number
JPS5671380A
JPS5671380A JP14861579A JP14861579A JPS5671380A JP S5671380 A JPS5671380 A JP S5671380A JP 14861579 A JP14861579 A JP 14861579A JP 14861579 A JP14861579 A JP 14861579A JP S5671380 A JPS5671380 A JP S5671380A
Authority
JP
Japan
Prior art keywords
pickup
objective
image
optical system
light flux
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
JP14861579A
Other languages
Japanese (ja)
Inventor
Michihiro Tokuhara
Tetsuo Sueda
Kazuo Tanaka
Takamasa Hirose
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 JP14861579A priority Critical patent/JPS5671380A/en
Publication of JPS5671380A publication Critical patent/JPS5671380A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/671—Focus control based on electronic image sensor signals in combination with active ranging signals, e.g. using light or sound signals emitted toward objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To enable the focus adjustment with fast response to faster objective and to enable the pickup of images always in matched focus, by scanning the distance measuring objective and obtaining the distance information in a short time immediately before or after the scanning of pickup objective image. CONSTITUTION:The light flux radiated from the objective passes through the focal zoom 1 of the pickup optical system, and the light flux through the semitransparent mirror 4 of a beam splitter 3 forms the objective image on the photoforming plane of a pickup device 7. On the other hand, the light flux reflected from the semitransparent mirror 4 is formed on the second image 15 as normal image, which is observed by the operator. Further, under another pickup optical system, the distance optical system introducing the light flux for automatic focussing to the image plane of the pickup device 7 is placed. The front lens group 10 of the pickup lens system and the image forming lens of the distance optical system are interlocked through a link mechanism 31 and adjustment is made so that the objective images of both are focussed. Accordingly, the pickup of objective for pickup and the distance between objectives can almost simultaneously be made.
JP14861579A 1979-11-15 1979-11-15 Television camera Pending JPS5671380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14861579A JPS5671380A (en) 1979-11-15 1979-11-15 Television camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14861579A JPS5671380A (en) 1979-11-15 1979-11-15 Television camera

Publications (1)

Publication Number Publication Date
JPS5671380A true JPS5671380A (en) 1981-06-13

Family

ID=15456737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14861579A Pending JPS5671380A (en) 1979-11-15 1979-11-15 Television camera

Country Status (1)

Country Link
JP (1) JPS5671380A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128622U (en) * 1980-02-28 1981-09-30
JPS5888709A (en) * 1981-11-24 1983-05-26 Canon Inc Optical system for focusing detection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351924A (en) * 1976-10-22 1978-05-11 Hitachi Ltd Video input unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351924A (en) * 1976-10-22 1978-05-11 Hitachi Ltd Video input unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128622U (en) * 1980-02-28 1981-09-30
JPS5888709A (en) * 1981-11-24 1983-05-26 Canon Inc Optical system for focusing detection

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