JPS57151928A - Microfilm reader - Google Patents

Microfilm reader

Info

Publication number
JPS57151928A
JPS57151928A JP3743681A JP3743681A JPS57151928A JP S57151928 A JPS57151928 A JP S57151928A JP 3743681 A JP3743681 A JP 3743681A JP 3743681 A JP3743681 A JP 3743681A JP S57151928 A JPS57151928 A JP S57151928A
Authority
JP
Japan
Prior art keywords
lamp
relay
driving circuit
turned
illumination lamp
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
JP3743681A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0345369B2 (enExample
Inventor
Yoshio Ando
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 JP3743681A priority Critical patent/JPS57151928A/ja
Publication of JPS57151928A publication Critical patent/JPS57151928A/ja
Publication of JPH0345369B2 publication Critical patent/JPH0345369B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Projection Apparatus (AREA)
JP3743681A 1981-03-16 1981-03-16 Microfilm reader Granted JPS57151928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3743681A JPS57151928A (en) 1981-03-16 1981-03-16 Microfilm reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3743681A JPS57151928A (en) 1981-03-16 1981-03-16 Microfilm reader

Publications (2)

Publication Number Publication Date
JPS57151928A true JPS57151928A (en) 1982-09-20
JPH0345369B2 JPH0345369B2 (enExample) 1991-07-10

Family

ID=12497457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3743681A Granted JPS57151928A (en) 1981-03-16 1981-03-16 Microfilm reader

Country Status (1)

Country Link
JP (1) JPS57151928A (enExample)

Also Published As

Publication number Publication date
JPH0345369B2 (enExample) 1991-07-10

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