FR889281A - Objectif photographique perfectionné - Google Patents
Objectif photographique perfectionnéInfo
- Publication number
- FR889281A FR889281A FR889281DA FR889281A FR 889281 A FR889281 A FR 889281A FR 889281D A FR889281D A FR 889281DA FR 889281 A FR889281 A FR 889281A
- Authority
- FR
- France
- Prior art keywords
- photographic lens
- advanced photographic
- advanced
- lens
- photographic
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US889281XA | 1940-05-17 | 1940-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR889281A true FR889281A (fr) | 1944-01-05 |
Family
ID=1556564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR889281D Expired FR889281A (fr) | 1940-05-17 | 1942-12-18 | Objectif photographique perfectionné |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR889281A (fr) |
-
1942
- 1942-12-18 FR FR889281D patent/FR889281A/fr not_active Expired
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