JPS4922120A - - Google Patents
Info
- Publication number
- JPS4922120A JPS4922120A JP48044626A JP4462673A JPS4922120A JP S4922120 A JPS4922120 A JP S4922120A JP 48044626 A JP48044626 A JP 48044626A JP 4462673 A JP4462673 A JP 4462673A JP S4922120 A JPS4922120 A JP S4922120A
- Authority
- JP
- Japan
- 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.)
- Granted
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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24580072A | 1972-04-21 | 1972-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4922120A true JPS4922120A (https=) | 1974-02-27 |
| JPS5340448B2 JPS5340448B2 (https=) | 1978-10-27 |
Family
ID=22928131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4462673A Expired JPS5340448B2 (https=) | 1972-04-21 | 1973-04-19 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5340448B2 (https=) |
| CA (1) | CA991465A (https=) |
| DE (1) | DE2318510C2 (https=) |
| FR (1) | FR2181312A5 (https=) |
| GB (1) | GB1417044A (https=) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4879200A (https=) * | 1972-01-25 | 1973-10-24 | ||
| JPS50139729A (https=) * | 1974-04-24 | 1975-11-08 | ||
| JPS5796425U (https=) * | 1980-12-04 | 1982-06-14 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942183A (en) * | 1974-07-02 | 1976-03-02 | Polaroid Corporation | Camera with pivoting blades |
| US3995295A (en) * | 1975-08-28 | 1976-11-30 | Polaroid Corporation | Electro-mechanical shutter system having mechanical latch |
| JPS5449128A (en) * | 1977-09-27 | 1979-04-18 | Seiko Koki Kk | Electromagnetic drive apparatus of shutter for camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3641889A (en) * | 1970-09-02 | 1972-02-15 | Polaroid Corp | Exposure control system |
| JPS4817321B1 (https=) * | 1970-09-25 | 1973-05-29 |
-
1973
- 1973-03-09 CA CA165,738A patent/CA991465A/en not_active Expired
- 1973-04-09 GB GB1690073A patent/GB1417044A/en not_active Expired
- 1973-04-12 DE DE2318510A patent/DE2318510C2/de not_active Expired
- 1973-04-12 FR FR7313281A patent/FR2181312A5/fr not_active Expired
- 1973-04-19 JP JP4462673A patent/JPS5340448B2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4879200A (https=) * | 1972-01-25 | 1973-10-24 | ||
| JPS50139729A (https=) * | 1974-04-24 | 1975-11-08 | ||
| JPS5796425U (https=) * | 1980-12-04 | 1982-06-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA991465A (en) | 1976-06-22 |
| JPS5340448B2 (https=) | 1978-10-27 |
| GB1417044A (en) | 1975-12-10 |
| DE2318510C2 (de) | 1983-02-17 |
| DE2318510A1 (de) | 1973-10-31 |
| FR2181312A5 (https=) | 1973-11-30 |