AU462019B2 - Optical projection system - Google Patents

Optical projection system

Info

Publication number: AU462019B2
Authority: AU; Australia
Prior art keywords: projection system; optical projection; optical; projection
Prior art date: 1970-11-06
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

AU35279/71A

Other versions

AU3527971A (en

Inventor

LANGFORD LIBBY and MYRL J. MILLER EDWIN

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.)

1970-11-06

Filing date

1971-11-02

Publication date

1975-06-12

1971-11-02 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1973-05-10 Publication of AU3527971A publication Critical patent/AU3527971A/en

1975-06-12 Application granted granted Critical

1975-06-12 Publication of AU462019B2 publication Critical patent/AU462019B2/en

Status 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)

AU35279/71A 1970-11-06 1971-11-02 Optical projection system Expired AU462019B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US8750870A	1970-11-06	1970-11-06
USUS87508		1970-11-06

Publications (2)

Publication Number	Publication Date
AU3527971A AU3527971A (en)	1973-05-10
AU462019B2 true AU462019B2 (en)	1975-06-12

Family

ID=22205608

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU35279/71A Expired AU462019B2 (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

1971
- 1971-09-22 JP JP7350571A patent/JPS541178B1/ja active Pending
- 1971-09-23 NL NL7113050A patent/NL7113050A/xx active Search and Examination
- 1971-09-24 GB GB4457871A patent/GB1336819A/en not_active Expired
- 1971-10-12 FR FR7137749A patent/FR2116380B1/fr not_active Expired
- 1971-10-25 BE BE774410A patent/BE774410A/en not_active IP Right Cessation
- 1971-10-28 CH CH1576071A patent/CH530661A/en not_active IP Right Cessation
- 1971-11-02 AU AU35279/71A patent/AU462019B2/en not_active Expired
- 1971-11-02 ES ES396573A patent/ES396573A1/en not_active Expired
- 1971-11-02 CA CA126,620A patent/CA967796A/en not_active Expired
- 1971-11-05 DE DE19712154944 patent/DE2154944A1/en not_active Ceased

Also Published As

Publication number	Publication date
AU3527971A (en)	1973-05-10
CA967796A (en)	1975-05-20
BE774410A (en)	1972-02-14
NL7113050A (en)	1972-05-09
ES396573A1 (en)	1974-05-16
FR2116380A1 (en)	1972-07-13
DE2154944A1 (en)	1972-05-18
GB1336819A (en)	1973-11-14
JPS541178B1 (en)	1979-01-22
CH530661A (en)	1972-11-15
FR2116380B1 (en)	1974-05-31

Publication	Publication Date	Title
CA944743A (en)	1974-04-02	Light reflector system
CA926119A (en)	1973-05-15	Optical annunciator
CA953556A (en)	1974-08-27	Variable-magnifying-power lens system
CA960493A (en)	1975-01-07	Compact optical display system
AU462019B2 (en)	1975-06-12	Optical projection system
CA928688A (en)	1973-06-19	Lens
CA927470A (en)	1973-05-29	Optical imaging system
CA951804A (en)	1974-07-23	Circular symmetric bootlace lens system
CA954350A (en)	1974-09-10	Multiple slide optical projector
CA961682A (en)	1975-01-28	Optical demodulation system
CA941211A (en)	1974-02-05	Developer system
CA956494A (en)	1974-10-22	Projection system
CA939543A (en)	1974-01-08	Micro-objective reduction lens system
CA972193A (en)	1975-08-05	Optical system
CA831264A (en)	1970-01-06	Lens stabilization system
CA921739A (en)	1973-02-27	Projection system
CA855454A (en)	1970-11-10	Optical systems
CA866513A (en)	1971-03-23	Optical projection system
CA831265A (en)	1970-01-06	Stabilized optical system
CA842621A (en)	1970-05-26	Optical system for photocopying
CA818836A (en)	1969-07-29	Multiple projector optical system
CA834337A (en)	1970-02-10	Electron optical system
CA837339A (en)	1970-03-24	Concentric lens stabilization system
CA837340A (en)	1970-03-24	Stabilized offset lens system
CA836835A (en)	1970-03-17	Micro-objective lens system