FR698870A - Système de lentilles centrées - Google Patents
Système de lentilles centréesInfo
- Publication number
- FR698870A FR698870A FR698870DA FR698870A FR 698870 A FR698870 A FR 698870A FR 698870D A FR698870D A FR 698870DA FR 698870 A FR698870 A FR 698870A
- Authority
- FR
- France
- Prior art keywords
- lens system
- centered lens
- centered
- 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 -
- G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE698870X | 1929-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR698870A true FR698870A (fr) | 1931-02-06 |
Family
ID=6608273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR698870D Expired FR698870A (fr) | 1929-07-31 | 1930-07-11 | Système de lentilles centrées |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR698870A (fr) |
-
1930
- 1930-07-11 FR FR698870D patent/FR698870A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR654415A (fr) | Système de foyer | |
FR698870A (fr) | Système de lentilles centrées | |
FR37104E (fr) | Système de transmission | |
FR668876A (fr) | Système de fermoir | |
FR681501A (fr) | Système de turbine | |
FR648170A (fr) | Système de raccord | |
FR678478A (fr) | Système d'auto-touage | |
FR667838A (fr) | Système de caléfacteurs tournants | |
FR703249A (fr) | Système de graissage | |
FR660682A (fr) | Système de corset-ceinture | |
FR663623A (fr) | Système de baratte-malaxeuse | |
FR724826A (fr) | Système de téléphonie optique | |
FR696806A (fr) | Système passe-bande | |
FR585311A (fr) | Système de lentilles | |
FR671524A (fr) | Système de classeur | |
FR682395A (fr) | Système de graissage central automatique | |
FR671654A (fr) | Système de charnière invisible | |
FR664604A (fr) | Système de verrouillage | |
FR692639A (fr) | Système de marchepied de sûreté | |
FR671008A (fr) | Système de frein | |
FR662158A (fr) | Système de condenseur | |
FR695617A (fr) | Système de ventilateur pour chaussures | |
DK41445C (da) | Optisk System. | |
FR711495A (fr) | Système de projection optique | |
FR674483A (fr) | Système de phares anti-éblouissants |