FR870180A - Objectif photographique - Google Patents
Objectif photographiqueInfo
- Publication number
- FR870180A FR870180A FR870180DA FR870180A FR 870180 A FR870180 A FR 870180A FR 870180D A FR870180D A FR 870180DA FR 870180 A FR870180 A FR 870180A
- Authority
- FR
- France
- Prior art keywords
- photographic lens
- 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
- 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 |
---|---|---|---|
DE870180X | 1940-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR870180A true FR870180A (fr) | 1942-03-04 |
Family
ID=6804412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR870180D Expired FR870180A (fr) | 1940-05-06 | 1941-02-20 | Objectif photographique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR870180A (fr) |
-
1941
- 1941-02-20 FR FR870180D patent/FR870180A/fr not_active Expired
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