FR1008438A - Optical viewfinder - Google Patents
Optical viewfinderInfo
- Publication number
- FR1008438A FR1008438A FR1008438DA FR1008438A FR 1008438 A FR1008438 A FR 1008438A FR 1008438D A FR1008438D A FR 1008438DA FR 1008438 A FR1008438 A FR 1008438A
- Authority
- FR
- France
- Prior art keywords
- optical viewfinder
- viewfinder
- optical
- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/02—Viewfinders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1008438T | 1950-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1008438A true FR1008438A (en) | 1952-05-19 |
Family
ID=9567343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1008438D Expired FR1008438A (en) | 1950-01-17 | 1950-01-17 | Optical viewfinder |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1008438A (en) |
-
1950
- 1950-01-17 FR FR1008438D patent/FR1008438A/en not_active Expired
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