FR2053071B1 - - Google Patents
Info
- Publication number
- FR2053071B1 FR2053071B1 FR7027041A FR7027041A FR2053071B1 FR 2053071 B1 FR2053071 B1 FR 2053071B1 FR 7027041 A FR7027041 A FR 7027041A FR 7027041 A FR7027041 A FR 7027041A FR 2053071 B1 FR2053071 B1 FR 2053071B1
- Authority
- FR
- France
- 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
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
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Transforming Electric Information Into Light Information (AREA)
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 (2)
| Publication Number | Publication Date |
|---|---|
| FR2053071A1 FR2053071A1 (en) | 1971-04-16 |
| FR2053071B1 true FR2053071B1 (en) | 1977-11-04 |
Family
ID=26714651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7027041A Expired FR2053071B1 (en) | 1969-07-22 | 1970-07-22 |
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)
| 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 CA CA088,666A patent/CA948908A/en not_active Expired
- 1970-07-21 DE DE7027406U patent/DE7027406U/en not_active Expired
- 1970-07-21 DE DE2036119A patent/DE2036119C3/en not_active Expired
- 1970-07-22 AT AT667970A patent/AT312324B/en not_active IP Right Cessation
- 1970-07-22 BE BE753741D patent/BE753741A/en unknown
- 1970-07-22 FR FR7027041A patent/FR2053071B1/fr not_active Expired
- 1970-07-22 NL NL7010832A patent/NL7010832A/xx unknown
- 1970-07-22 SE SE10157/70A patent/SE360747B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1285870A (en) | 1972-08-16 |
| BE753741A (en) | 1970-12-31 |
| IL34951A (en) | 1973-02-28 |
| JPS5012304B1 (en) | 1975-05-10 |
| NL7010832A (en) | 1971-01-26 |
| CA948908A (en) | 1974-06-11 |
| FR2053071A1 (en) | 1971-04-16 |
| DE2036119A1 (en) | 1971-02-04 |
| SE360747B (en) | 1973-10-01 |
| CH516172A (en) | 1971-11-30 |
| DE2036119B2 (en) | 1973-08-23 |
| DE2036119C3 (en) | 1974-03-28 |
| DE7027406U (en) | 1970-12-03 |
| IL34951A0 (en) | 1970-09-17 |
| AT312324B (en) | 1973-12-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |