ES396573A1 - Optical projection system - Google Patents

Optical projection system

Info

Publication number
ES396573A1
ES396573A1 ES396573A ES396573A ES396573A1 ES 396573 A1 ES396573 A1 ES 396573A1 ES 396573 A ES396573 A ES 396573A ES 396573 A ES396573 A ES 396573A ES 396573 A1 ES396573 A1 ES 396573A1
Authority
ES
Spain
Prior art keywords
lens
movement
image
moving
projection system
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.)
Expired
Application number
ES396573A
Other languages
Spanish (es)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES396573A1 publication Critical patent/ES396573A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification

Landscapes

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

Abstract

An optical system that incorporates at least one lens element and one reflector member and provides a change in magnification of an image projected on an image plane from an original document plane, a system comprising: means for supporting said element of lens with movement essentially along the optical path of the image transported in said system, in an interval of movement that goes from a first position to a second position, said support means also being arranged to communicate a transverse movement to said element lens when moving from said first position to said second position; and actuation means for moving said lens support means and said lens element as required, from one to the other of said first and second positions. (Machine-translation by Google Translate, not legally binding)
ES396573A 1970-11-06 1971-11-02 Optical projection system Expired ES396573A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8750870A 1970-11-06 1970-11-06

Publications (1)

Publication Number Publication Date
ES396573A1 true ES396573A1 (en) 1974-05-16

Family

ID=22205608

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396573A Expired ES396573A1 (en) 1970-11-06 1971-11-02 Optical projection system

Country Status (10)

Country Link
JP (1) JPS541178B1 (en)
AU (1) AU462019B2 (en)
BE (1) BE774410A (en)
CA (1) CA967796A (en)
CH (1) CH530661A (en)
DE (1) DE2154944A1 (en)
ES (1) ES396573A1 (en)
FR (1) FR2116380B1 (en)
GB (1) GB1336819A (en)
NL (1) NL7113050A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778147A (en) * 1972-07-11 1973-12-11 Xerox Corp Electrostatic reproduction machine having selectable magnification ratios
US3897148A (en) * 1973-11-29 1975-07-29 Ibm Optical scanning system
JPS6014345B2 (en) * 1974-12-25 1985-04-12 株式会社リコー Variable magnification slit exposure method in electronic copying machine
GB1490755A (en) * 1975-03-10 1977-11-02 Seib M Optical viewing apparatus
US4013361A (en) * 1975-06-20 1977-03-22 Xerox Corporation Optical apparatus and reproducing machine
JPS5949574B2 (en) * 1975-10-30 1984-12-04 ゼロツクス、コ−ポレ−シヨン Copy machine
GB1525218A (en) * 1976-09-07 1978-09-20 Ibm Electrophotographic copying machine
US4120578A (en) * 1976-09-07 1978-10-17 International Business Machines Corporation Continuously variable reduction scanning optics drive
US4105327A (en) * 1976-12-09 1978-08-08 International Business Machines Corporation Multiple reduction indicators for continuously variable reduction copier machines
JPS5392126A (en) * 1977-01-25 1978-08-12 Ricoh Co Ltd Exposure regulator for variable magnification copying machine
CA1126800A (en) * 1978-11-09 1982-06-29 Benzion Landa Rotatable focusing means for variable magnification electrophotographic copier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1198539A (en) * 1968-12-09 1970-07-15 Tokyo Shibaura Electric Co Photocopying Apparatus.
JPS4821892B1 (en) * 1969-02-28 1973-07-02

Also Published As

Publication number Publication date
GB1336819A (en) 1973-11-14
CA967796A (en) 1975-05-20
CH530661A (en) 1972-11-15
AU462019B2 (en) 1975-06-12
NL7113050A (en) 1972-05-09
FR2116380A1 (en) 1972-07-13
FR2116380B1 (en) 1974-05-31
JPS541178B1 (en) 1979-01-22
AU3527971A (en) 1973-05-10
DE2154944A1 (en) 1972-05-18
BE774410A (en) 1972-02-14

Similar Documents

Publication Publication Date Title
DK114584B (en) Automatic focusing mechanism for an optical system.
ES360896A1 (en) An optico system. (Machine-translation by Google Translate, not legally binding)
ES295081A1 (en) Apparatus for optically measuring wheel alignment characteristics
GB1260688A (en) Illumination system
GB1291652A (en) Improvements in and relating to optical arrangements
GB1336819A (en) Optical projection system
ES431974A1 (en) Device for exploiting large zones by a television camera. (Machine-translation by Google Translate, not legally binding)
GB1280977A (en) Optical projection device
ES318401A1 (en) Improvements in lighting systems. (Machine-translation by Google Translate, not legally binding)
ES218178A1 (en) Improvements in the construction of fixed view projectors for opaque and transparent bodies (Machine-translation by Google Translate, not legally binding)
GB1203016A (en) Improvements in and relating to photographic exposure arrangements
GB1223409A (en) Improvements in and relating to photo-copying arrangements
ES153220U (en) Frame for slides (Machine-translation by Google Translate, not legally binding)
ES201824A1 (en) Improvements in typographic machines of photomechanical composition (Machine-translation by Google Translate, not legally binding)
ES406491A1 (en) Control circuit for optical projection systems
ES287270A1 (en) Reading device of the optical track of a movie (Machine-translation by Google Translate, not legally binding)
ES403700A1 (en) Image registration in a multiple magnification photocopying system
ES248057A1 (en) System of bars for optical optics (Machine-translation by Google Translate, not legally binding)
ES194297U (en) Coupling support set to support variable measurement film reels in a projection station. (Machine-translation by Google Translate, not legally binding)
GB1229048A (en)
ES425265A1 (en) Improvements in apparatus for the projection and vision of images. (Machine-translation by Google Translate, not legally binding)
GB885508A (en) Improvements in optical means for indicating or recording a path of movement
ES154871U (en) Indicative-intermittent light apparatus. (Machine-translation by Google Translate, not legally binding)
GB507165A (en) Improvements in or relating to cinematographic apparatus
GB1324115A (en) Optical systems

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19931115