FR71917E - Obturateur d'objectif photographique - Google Patents
Obturateur d'objectif photographiqueInfo
- Publication number
- FR71917E FR71917E FR71917DA FR71917E FR 71917 E FR71917 E FR 71917E FR 71917D A FR71917D A FR 71917DA FR 71917 E FR71917 E FR 71917E
- Authority
- FR
- France
- Prior art keywords
- photographic lens
- lens shutter
- shutter
- photographic
- lens
- 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
- 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
- G03B9/08—Shutters
- G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
- G03B9/18—More than two members
- G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR71917T | 1953-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR71917E true FR71917E (fr) | 1960-03-14 |
Family
ID=8703438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR71917D Expired FR71917E (fr) | 1953-04-23 | 1953-04-23 | Obturateur d'objectif photographique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR71917E (fr) |
-
1953
- 1953-04-23 FR FR71917D patent/FR71917E/fr not_active Expired
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