FR870908A - Photographic lens shutter - Google Patents
Photographic lens shutterInfo
- Publication number
- FR870908A FR870908A FR870908DA FR870908A FR 870908 A FR870908 A FR 870908A FR 870908D A FR870908D A FR 870908DA FR 870908 A FR870908 A FR 870908A
- 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 |
---|---|---|---|
DE870908X | 1940-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR870908A true FR870908A (en) | 1942-03-30 |
Family
ID=6809615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR870908D Expired FR870908A (en) | 1940-01-19 | 1941-03-15 | Photographic lens shutter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR870908A (en) |
-
1941
- 1941-03-15 FR FR870908D patent/FR870908A/en not_active Expired
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