FR597670A - Téléobjectif - Google Patents
TéléobjectifInfo
- Publication number
- FR597670A FR597670A FR597670DA FR597670A FR 597670 A FR597670 A FR 597670A FR 597670D A FR597670D A FR 597670DA FR 597670 A FR597670 A FR 597670A
- Authority
- FR
- France
- Prior art keywords
- telephoto
- 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
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE597670X | 1924-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR597670A true FR597670A (fr) | 1925-11-26 |
Family
ID=6574079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR597670D Expired FR597670A (fr) | 1924-05-14 | 1925-05-05 | Téléobjectif |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR597670A (fr) |
-
1925
- 1925-05-05 FR FR597670D patent/FR597670A/fr not_active Expired
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