JPS56168678A - Projection observing and copying device - Google Patents

Projection observing and copying device

Info

Publication number
JPS56168678A
JPS56168678A JP7357680A JP7357680A JPS56168678A JP S56168678 A JPS56168678 A JP S56168678A JP 7357680 A JP7357680 A JP 7357680A JP 7357680 A JP7357680 A JP 7357680A JP S56168678 A JPS56168678 A JP S56168678A
Authority
JP
Japan
Prior art keywords
macro
optical system
copying
imaging optical
luminous fluxes
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
JP7357680A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamada
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7357680A priority Critical patent/JPS56168678A/en
Publication of JPS56168678A publication Critical patent/JPS56168678A/en
Pending 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
    • G03B21/118—Reader-printers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

PURPOSE:To reduce the bulk and weight of an optical system without requiring imaging optical systems by using a focusing type optical transmission body array for the imaging optical system and using one piece of a lens which makes macro- projection light into parallel luminous fluxes. CONSTITUTION:A protection observing device 1 is removably mounted to a copying device 2, and a Fresnel lens 12 is used for making macro-projection light into parallel luminous fluxes. A focusing type optical transmission body array 13 is used for an imaging optical system. With this constitution, the image of a microfilm M is projected via the 1st, 2nd reflecting mirrors 6, 7 to a projection screen 8. In the case of a macro-copying, the mirror 7 is located in the imaginary position of the figure, then macro-projection light enters the lens 12 and enters the array 13 are parallel luminous fluxes. The exit light is projected as imaging light onto a drum 14, whereby prescribed copying is accomplished. Thereby, the bulk and weight of the optical system are reduced without requiring imaging optical systems.
JP7357680A 1980-05-30 1980-05-30 Projection observing and copying device Pending JPS56168678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7357680A JPS56168678A (en) 1980-05-30 1980-05-30 Projection observing and copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7357680A JPS56168678A (en) 1980-05-30 1980-05-30 Projection observing and copying device

Publications (1)

Publication Number Publication Date
JPS56168678A true JPS56168678A (en) 1981-12-24

Family

ID=13522246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7357680A Pending JPS56168678A (en) 1980-05-30 1980-05-30 Projection observing and copying device

Country Status (1)

Country Link
JP (1) JPS56168678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124241U (en) * 1987-02-04 1988-08-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124241U (en) * 1987-02-04 1988-08-12

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