JPS54153629A - Microfilm projector - Google Patents

Microfilm projector

Info

Publication number
JPS54153629A
JPS54153629A JP6193578A JP6193578A JPS54153629A JP S54153629 A JPS54153629 A JP S54153629A JP 6193578 A JP6193578 A JP 6193578A JP 6193578 A JP6193578 A JP 6193578A JP S54153629 A JPS54153629 A JP S54153629A
Authority
JP
Japan
Prior art keywords
frame
marks
projecting
detector
light path
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.)
Granted
Application number
JP6193578A
Other languages
Japanese (ja)
Other versions
JPS6057579B2 (en
Inventor
Yoshiaki Sone
Kazuo Kashiwagi
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 JP6193578A priority Critical patent/JPS6057579B2/en
Publication of JPS54153629A publication Critical patent/JPS54153629A/en
Publication of JPS6057579B2 publication Critical patent/JPS6057579B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Projection-Type Copiers In General (AREA)
  • Projection Apparatus (AREA)

Abstract

PURPOSE: To make possible the use of various kinds of films with one unit of projector by disposing two mark detecting means withdrawably in the projecting light path.
CONSTITUTION: A first mark detector 10 which detects the frame marks 2 of a microfilm F is disposed directly to the substrate 12 between a projecting lens 7 and a mirror 8 and a second mark detector 11 which detects event marks 3 by way of a movable plate 13. Then, at the time of projecting the film F having both of the frame marks 2 and event marks 8 on a screen 9, the movable plate 13 is turned by operating a lever 15 to dispose the second mark detector 11 together with the first mark detector 10 in the projecting light path, by which frame and event retrieval may be accomplished. At the time of projecting the film having only the frame marks 2, the second detector 11 is moved to the outside of the projecting light path, then the entire part of the image may be projected without the effect of the second detector 11 and the frame retrieval may be accomplished.
COPYRIGHT: (C)1979,JPO&Japio
JP6193578A 1978-05-24 1978-05-24 search device Expired JPS6057579B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6193578A JPS6057579B2 (en) 1978-05-24 1978-05-24 search device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6193578A JPS6057579B2 (en) 1978-05-24 1978-05-24 search device

Publications (2)

Publication Number Publication Date
JPS54153629A true JPS54153629A (en) 1979-12-04
JPS6057579B2 JPS6057579B2 (en) 1985-12-16

Family

ID=13185527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6193578A Expired JPS6057579B2 (en) 1978-05-24 1978-05-24 search device

Country Status (1)

Country Link
JP (1) JPS6057579B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514641A (en) * 1981-11-09 1985-04-30 Canon Kabushiki Kaisha Apparatus for retrieving information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514641A (en) * 1981-11-09 1985-04-30 Canon Kabushiki Kaisha Apparatus for retrieving information

Also Published As

Publication number Publication date
JPS6057579B2 (en) 1985-12-16

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