FR2155671A7 - - Google Patents
Info
- Publication number
- FR2155671A7 FR2155671A7 FR7235641A FR7235641A FR2155671A7 FR 2155671 A7 FR2155671 A7 FR 2155671A7 FR 7235641 A FR7235641 A FR 7235641A FR 7235641 A FR7235641 A FR 7235641A FR 2155671 A7 FR2155671 A7 FR 2155671A7
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
-
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Shutters For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE1003464 | 1971-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2155671A7 true FR2155671A7 (https=) | 1973-05-18 |
Family
ID=3862626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7235641A Expired FR2155671A7 (https=) | 1971-10-07 | 1972-10-06 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2248918A1 (https=) |
| FR (1) | FR2155671A7 (https=) |
-
1972
- 1972-10-05 DE DE19722248918 patent/DE2248918A1/de not_active Ceased
- 1972-10-06 FR FR7235641A patent/FR2155671A7/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2248918A1 (de) | 1973-04-12 |