BE446653A - - Google Patents
Info
- Publication number
- BE446653A BE446653A BE446653DA BE446653A BE 446653 A BE446653 A BE 446653A BE 446653D A BE446653D A BE 446653DA BE 446653 A BE446653 A BE 446653A
- Authority
- BE
- Belgium
- Prior art keywords
- cell
- objective
- light rays
- exposure time
- lens
- Prior art date
Links
- 238000012937 correction Methods 0.000 claims 1
- 230000011514 reflex Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000005338 frosted glass Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- 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
- G03B7/099—Arrangement of photoelectric elements in or on the camera
- G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
- G03B7/0997—Through the lens [TTL] measuring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446653A true BE446653A (h) |
Family
ID=102706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446653D BE446653A (h) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE446653A (h) |
-
0
- BE BE446653D patent/BE446653A/fr unknown
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