FR93504E - Dispositif de réglage de la lumination pour appareil de prise de vues. - Google Patents
Dispositif de réglage de la lumination pour appareil de prise de vues.Info
- Publication number
- FR93504E FR93504E FR82707A FR82707A FR93504E FR 93504 E FR93504 E FR 93504E FR 82707 A FR82707 A FR 82707A FR 82707 A FR82707 A FR 82707A FR 93504 E FR93504 E FR 93504E
- Authority
- FR
- France
- Prior art keywords
- lumination
- cameras
- adjusting
- Prior art date
- 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
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking 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
- 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)
- Spectroscopy & Molecular Physics (AREA)
- Shutters For Cameras (AREA)
- Diaphragms For Cameras (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31041563A | 1963-09-20 | 1963-09-20 | |
US542373A US3292517A (en) | 1963-09-20 | 1966-04-13 | Exposure control systems for cameras |
Publications (1)
Publication Number | Publication Date |
---|---|
FR93504E true FR93504E (fr) | 1969-04-11 |
Family
ID=24163540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR82707A Expired FR93504E (fr) | 1963-09-20 | 1966-11-07 | Dispositif de réglage de la lumination pour appareil de prise de vues. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3292517A (fr) |
BE (1) | BE689229A (fr) |
CH (1) | CH463270A (fr) |
DE (1) | DE1285297B (fr) |
DK (1) | DK118117B (fr) |
FR (1) | FR93504E (fr) |
GB (1) | GB1181805A (fr) |
LU (1) | LU52309A1 (fr) |
NO (1) | NO118688B (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3651748A (en) * | 1968-12-13 | 1972-03-28 | Nihon Eigakikai Kk | Camera iris blade |
US3633475A (en) * | 1969-04-09 | 1972-01-11 | Bell & Howell Co | Information display apparatus |
US3517598A (en) * | 1969-10-27 | 1970-06-30 | Eastman Kodak Co | Systems for removing a normally fixed mask from a lens aperture |
US3810207A (en) * | 1972-04-24 | 1974-05-07 | Bell & Howell Co | Exposure control system |
US20120325781A1 (en) * | 2011-06-23 | 2012-12-27 | Deere & Company | Protective enclosure |
-
1966
- 1966-04-13 US US542373A patent/US3292517A/en not_active Expired - Lifetime
- 1966-10-26 DK DK557866AA patent/DK118117B/da unknown
- 1966-11-02 NO NO165427A patent/NO118688B/no unknown
- 1966-11-03 BE BE689229D patent/BE689229A/xx unknown
- 1966-11-07 FR FR82707A patent/FR93504E/fr not_active Expired
- 1966-11-07 LU LU52309D patent/LU52309A1/xx unknown
- 1966-11-29 DE DEE32950A patent/DE1285297B/de active Pending
-
1967
- 1967-02-02 CH CH154767A patent/CH463270A/fr unknown
- 1967-04-13 GB GB45955/66A patent/GB1181805A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK118117B (da) | 1970-07-06 |
NO118688B (fr) | 1970-01-26 |
LU52309A1 (fr) | 1967-01-09 |
CH463270A (fr) | 1968-09-30 |
DE1285297B (de) | 1968-12-12 |
BE689229A (fr) | 1967-04-14 |
US3292517A (en) | 1966-12-20 |
GB1181805A (en) | 1970-02-18 |
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