FR1455765A - Improvements to varifocal lenses - Google Patents
Improvements to varifocal lensesInfo
- Publication number
- FR1455765A FR1455765A FR938156A FR938156A FR1455765A FR 1455765 A FR1455765 A FR 1455765A FR 938156 A FR938156 A FR 938156A FR 938156 A FR938156 A FR 938156A FR 1455765 A FR1455765 A FR 1455765A
- Authority
- FR
- France
- Prior art keywords
- varifocal lenses
- varifocal
- lenses
- 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
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR938156A FR1455765A (en) | 1963-06-14 | 1963-06-14 | Improvements to varifocal lenses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR938156A FR1455765A (en) | 1963-06-14 | 1963-06-14 | Improvements to varifocal lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1455765A true FR1455765A (en) | 1966-05-20 |
Family
ID=8806080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR938156A Expired FR1455765A (en) | 1963-06-14 | 1963-06-14 | Improvements to varifocal lenses |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1455765A (en) |
-
1963
- 1963-06-14 FR FR938156A patent/FR1455765A/en not_active Expired
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