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JPS57169722A - Optical system for micro - Google Patents

Optical system for micro

Info

Publication number
JPS57169722A
JPS57169722A JP5457281A JP5457281A JPS57169722A JP S57169722 A JPS57169722 A JP S57169722A JP 5457281 A JP5457281 A JP 5457281A JP 5457281 A JP5457281 A JP 5457281A JP S57169722 A JPS57169722 A JP S57169722A
Authority
JP
Japan
Prior art keywords
projection lens
frame
lens
shorter side
condenser lens
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
JP5457281A
Other languages
Japanese (ja)
Inventor
Hisashi 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.)
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 JP5457281A priority Critical patent/JPS57169722A/en
Publication of JPS57169722A publication Critical patent/JPS57169722A/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
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

PURPOSE:To project a film where pictures are photographed in two stages, by changing the illumination region only due to the relative movement of a condenser lens of an illumination optical path in the direction of the shorter side and moving a projection lens in the direction of the shorter side in accordance with this relative movement. CONSTITUTION:The light of a light source 1 is focused to the pupil position of a projection lens 4 by condenser lenses 2 and 3. A frame (a) of a film is magnified and projected onto a screen 5 by the projection lens 4, and the light source 1 is provided in the focus position of the condenser lens 2, and the projection lens 4 is provided in the focus position of the condenser lens 3. When a frame (b) should be projected selectively, the condenser lens 2 is moved to a position 2' in the direction of the shorter side to obtain the magnified image of the frame (b).
JP5457281A 1981-04-10 1981-04-10 Optical system for micro Pending JPS57169722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5457281A JPS57169722A (en) 1981-04-10 1981-04-10 Optical system for micro

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5457281A JPS57169722A (en) 1981-04-10 1981-04-10 Optical system for micro

Publications (1)

Publication Number Publication Date
JPS57169722A true JPS57169722A (en) 1982-10-19

Family

ID=12974401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5457281A Pending JPS57169722A (en) 1981-04-10 1981-04-10 Optical system for micro

Country Status (1)

Country Link
JP (1) JPS57169722A (en)

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