FR73199E - Variable magnification optical system - Google Patents
Variable magnification optical systemInfo
- Publication number
- FR73199E FR73199E FR760553A FR760553A FR73199E FR 73199 E FR73199 E FR 73199E FR 760553 A FR760553 A FR 760553A FR 760553 A FR760553 A FR 760553A FR 73199 E FR73199 E FR 73199E
- Authority
- FR
- France
- Prior art keywords
- optical system
- variable magnification
- magnification optical
- variable
- optical
- 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
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR760553A FR73199E (en) | 1958-03-14 | 1958-03-14 | Variable magnification optical system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR760553A FR73199E (en) | 1958-03-14 | 1958-03-14 | Variable magnification optical system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR73199E true FR73199E (en) | 1960-09-23 |
Family
ID=8705984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR760553A Expired FR73199E (en) | 1958-03-14 | 1958-03-14 | Variable magnification optical system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR73199E (en) |
-
1958
- 1958-03-14 FR FR760553A patent/FR73199E/en not_active Expired
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