CH516172A - Projection device - Google Patents

Projection device

Info

Publication number: CH516172A
Authority: CH; Switzerland
Prior art keywords: projection device; projection
Prior art date: 1969-07-22

Application number

CH1098670A

Other languages

German (de)

Inventor

Szymber Oleg

Original Assignee

Gaf 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.)

1969-07-22

Filing date

1970-07-20

Publication date

1971-11-30

1970-07-20 Application filed by Gaf Corp filed Critical Gaf Corp

1971-11-30 Publication of CH516172A publication Critical patent/CH516172A/en

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
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Focusing (AREA)
Projection Apparatus (AREA)
Automatic Focus Adjustment (AREA)
Transforming Electric Information Into Light Information (AREA)

CH1098670A 1969-07-22 1970-07-20 Projection device CH516172A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US84331169A	1969-07-22	1969-07-22
US3795070A	1970-05-18	1970-05-18

Publications (1)

Publication Number	Publication Date
CH516172A true CH516172A (en)	1971-11-30

Family

ID=26714651

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1098670A CH516172A (en)	1969-07-22	1970-07-20	Projection device

Country Status (11)

Country	Link
JP (1)	JPS5012304B1 (en)
AT (1)	AT312324B (en)
BE (1)	BE753741A (en)
CA (1)	CA948908A (en)
CH (1)	CH516172A (en)
DE (2)	DE7027406U (en)
FR (1)	FR2053071B1 (en)
GB (1)	GB1285870A (en)
IL (1)	IL34951A (en)
NL (1)	NL7010832A (en)
SE (1)	SE360747B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2518767A1 (en) *	1981-12-17	1983-06-24	Centre Nat Etd Spatiales	METHOD FOR AUTOMATICALLY ADJUSTING THE SHARPNESS OF IMAGES PROJECTED ON A SCREEN AND DEVICES FOR CARRYING OUT SAID METHOD
DE3325042A1 (en) *	1983-07-12	1984-02-23	Kodak Ag, 7000 Stuttgart	SELF FOCUSING DEVICE
JPS6351681A (en) *	1986-08-20	1988-03-04	Agency Of Ind Science & Technol	Semiconductor device
DE4116803A1 (en) *	1991-05-23	1992-12-10	Agfa Gevaert Ag	DEVICE FOR THE UNIFORM ILLUMINATION OF A PROJECTION SURFACE
US6835921B2 (en)	2000-11-15	2004-12-28	Agfa Corporation	Focusing system for use in imaging systems
EP1408360A3 (en) *	2002-10-11	2004-07-28	Agfa Corporation	Focusing system and method for use in imaging systems

1970
- 1970-07-19 IL IL34951A patent/IL34951A/en unknown
- 1970-07-20 CH CH1098670A patent/CH516172A/en not_active IP Right Cessation
- 1970-07-20 JP JP45063500A patent/JPS5012304B1/ja active Pending
- 1970-07-21 GB GB35309/70A patent/GB1285870A/en not_active Expired
- 1970-07-21 DE DE7027406U patent/DE7027406U/en not_active Expired
- 1970-07-21 CA CA088,666A patent/CA948908A/en not_active Expired
- 1970-07-21 DE DE2036119A patent/DE2036119C3/en not_active Expired
- 1970-07-22 BE BE753741D patent/BE753741A/en unknown
- 1970-07-22 SE SE10157/70A patent/SE360747B/xx unknown
- 1970-07-22 FR FR7027041A patent/FR2053071B1/fr not_active Expired
- 1970-07-22 AT AT667970A patent/AT312324B/en not_active IP Right Cessation
- 1970-07-22 NL NL7010832A patent/NL7010832A/xx unknown

Also Published As

Publication number	Publication date
DE2036119C3 (en)	1974-03-28
FR2053071A1 (en)	1971-04-16
SE360747B (en)	1973-10-01
AT312324B (en)	1973-12-27
DE2036119A1 (en)	1971-02-04
DE7027406U (en)	1970-12-03
CA948908A (en)	1974-06-11
NL7010832A (en)	1971-01-26
IL34951A0 (en)	1970-09-17
DE2036119B2 (en)	1973-08-23
BE753741A (en)	1970-12-31
GB1285870A (en)	1972-08-16
IL34951A (en)	1973-02-28
JPS5012304B1 (en)	1975-05-10
FR2053071B1 (en)	1977-11-04

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Legal Events

Date	Code	Title	Description
1978-02-28	PL	Patent ceased