[go: up one dir, main page]

JPS57164762A - Optical device of copying machine - Google Patents

Optical device of copying machine

Info

Publication number
JPS57164762A
JPS57164762A JP937782A JP937782A JPS57164762A JP S57164762 A JPS57164762 A JP S57164762A JP 937782 A JP937782 A JP 937782A JP 937782 A JP937782 A JP 937782A JP S57164762 A JPS57164762 A JP S57164762A
Authority
JP
Japan
Prior art keywords
lens
exposure
manual
movement
dial
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
JP937782A
Other languages
Japanese (ja)
Inventor
Koichi Miyamoto
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 JP937782A priority Critical patent/JPS57164762A/en
Publication of JPS57164762A publication Critical patent/JPS57164762A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To permit automatic correction of exposure and manual control of exposure by controlling an aperture control mechanism by the movement of moving parts for manual power transmission means which are fixed during moving of a lens. CONSTITUTION:A lens L which can be moved for the purpose of changing copying magnifications, a manual aperture adjusting dial 48 which moves integrally with said lens L, movable parts (shafts 65, 66) which are connected mechanically to said dial 48 and move together with this, pulleys 58, 68, 60 which are connected mechanically to these moving parts and are diaposed in home positions, an aperture operating part 63, and worm mechanisms of which a work 50 and a worm wheel 57 are disposed in this order from the part 63 side in the manual operating power transmission route between the part 63 and the pulleys 58, 68, 69 are provided. It is possible to correct exposure automatically and to control exposure manually by controlling the dial 48 automatically by the movement of the shafts 65, 66 during the movement of the lens L.
JP937782A 1982-01-22 1982-01-22 Optical device of copying machine Pending JPS57164762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP937782A JPS57164762A (en) 1982-01-22 1982-01-22 Optical device of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP937782A JPS57164762A (en) 1982-01-22 1982-01-22 Optical device of copying machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10797377A Division JPS5441723A (en) 1977-09-09 1977-09-09 Optical device for copier

Publications (1)

Publication Number Publication Date
JPS57164762A true JPS57164762A (en) 1982-10-09

Family

ID=11718760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP937782A Pending JPS57164762A (en) 1982-01-22 1982-01-22 Optical device of copying machine

Country Status (1)

Country Link
JP (1) JPS57164762A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525529A (en) * 1975-06-27 1977-01-17 Xerox Corp Duplicator of variable multiplieication factor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525529A (en) * 1975-06-27 1977-01-17 Xerox Corp Duplicator of variable multiplieication factor

Similar Documents

Publication Publication Date Title
SE8304535L (en) MANUAL PARTS FOR MOVABLE PARTS, Separate for Firearms and Exposable Firearms
JPS55124136A (en) Hemming mask device for printer provided with automatic correction function
JPS55115024A (en) Automatic focusing camera
US4105327A (en) Multiple reduction indicators for continuously variable reduction copier machines
JPS5595933A (en) Automatic focusing device of lens barrel
JPS57164762A (en) Optical device of copying machine
JPS54136845A (en) Exposure regulator in scanning exposure type copying machine permitting variable power
JPS57179808A (en) Back focus adjusting device for lens of optical system
GB2242034B (en) Device for controlling automatic focusing lens device having manual mode
JPS57173860A (en) Variable magnification device of copier
JPS55127524A (en) Automatic focus control unit
JPS57188068A (en) Variable magnification optical system for copying machine
US3883244A (en) Aperture adjustment in optical assembly
JPS57164760A (en) Magnification setter for gripper type copying machine
JPS55144214A (en) Lens barrel capable of adjusting focus automatically and manually
JPS56162741A (en) Control method for body to be controlled
JPS5214422A (en) Automatic control method of exposure for the electrophotographic copying machine
JPS5790664A (en) Image position adjuster for copying machine
JPS56154749A (en) Driving device of copying machine
GB2003667A (en) Limit switch apparatus in electric motor drive
JPS57124318A (en) Overhead type sliding movie projector
US3215034A (en) Focussing cam structure
GB1139342A (en) Improvements in or relating to apparatus for controlling the operation of a camera
JPS57188067A (en) Optical system with variable magnification for copying machine
JPS57205218A (en) Controlling device of air conditioner for automobile