JPS5614782A - Image pickup lens system - Google Patents

Image pickup lens system

Info

Publication number
JPS5614782A
JPS5614782A JP9033979A JP9033979A JPS5614782A JP S5614782 A JPS5614782 A JP S5614782A JP 9033979 A JP9033979 A JP 9033979A JP 9033979 A JP9033979 A JP 9033979A JP S5614782 A JPS5614782 A JP S5614782A
Authority
JP
Japan
Prior art keywords
lens
image pickup
image
reflex mirrors
bias
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
JP9033979A
Other languages
Japanese (ja)
Inventor
Saburo Nobutoki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9033979A priority Critical patent/JPS5614782A/en
Publication of JPS5614782A publication Critical patent/JPS5614782A/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
    • H04N23/40—Circuit details for pick-up tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To reduce an afterimage on an image pickup tube by irradiating an image pickup surface with bias light with even reception quality by arranging miniature reflex mirrors, sufficiently increased in reflectivity, at the principal point of a lens or its circumference. CONSTITUTION:At the circumference of the lens principal point on the lens optical path including lens 1, split bias-lighting reflex mirrors 4 are arranged while their arrangement angles to the optical axis are set nearly to 45 deg.. Then, bias light, emitted from bias light source 5 at an external part, is reflected by those reflex mirrors 4 to the lens projection side and then image-formed at the back part of the lens by refracting, thereby providing total reflection on the image pickup surface. Additionally, part of image pickup light led out of reflex mirrors 4 is image-formed at point 6.
JP9033979A 1979-07-18 1979-07-18 Image pickup lens system Pending JPS5614782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9033979A JPS5614782A (en) 1979-07-18 1979-07-18 Image pickup lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9033979A JPS5614782A (en) 1979-07-18 1979-07-18 Image pickup lens system

Publications (1)

Publication Number Publication Date
JPS5614782A true JPS5614782A (en) 1981-02-13

Family

ID=13995753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9033979A Pending JPS5614782A (en) 1979-07-18 1979-07-18 Image pickup lens system

Country Status (1)

Country Link
JP (1) JPS5614782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01192863A (en) * 1988-01-27 1989-08-02 Wakayama Tekko Kk Continuous treatment of long cloth with fluid and apparatus therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5321447U (en) * 1976-08-02 1978-02-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5321447U (en) * 1976-08-02 1978-02-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01192863A (en) * 1988-01-27 1989-08-02 Wakayama Tekko Kk Continuous treatment of long cloth with fluid and apparatus therefor

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