FR518977A - Groupe d'objectifs - Google Patents
Groupe d'objectifsInfo
- Publication number
- FR518977A FR518977A FR518977A FR518977DA FR518977A FR 518977 A FR518977 A FR 518977A FR 518977 A FR518977 A FR 518977A FR 518977D A FR518977D A FR 518977DA FR 518977 A FR518977 A FR 518977A
- Authority
- FR
- France
- Prior art keywords
- objective group
- objective
- group
- 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 -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE518977X | 1918-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR518977A true FR518977A (fr) | 1921-06-02 |
Family
ID=6550313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR518977A Expired FR518977A (fr) | 1918-05-06 | 1920-07-05 | Groupe d'objectifs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR518977A (fr) |
-
1920
- 1920-07-05 FR FR518977A patent/FR518977A/fr not_active Expired
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