CH411383A - Objectif optique à longueur focale variable - Google Patents
Objectif optique à longueur focale variableInfo
- Publication number
- CH411383A CH411383A CH1131563A CH1131563A CH411383A CH 411383 A CH411383 A CH 411383A CH 1131563 A CH1131563 A CH 1131563A CH 1131563 A CH1131563 A CH 1131563A CH 411383 A CH411383 A CH 411383A
- Authority
- CH
- Switzerland
- Prior art keywords
- focal length
- optical lens
- variable focal
- length optical
- variable
- Prior art date
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
- G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/17—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +--
-
- 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
- G02B15/144—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 four groups only
- G02B15/1441—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 four groups only the first group being positive
- G02B15/144109—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 four groups only the first group being positive arranged +--+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB35088/62A GB1064323A (en) | 1962-09-14 | 1962-09-14 | Improvements in or relating to optical objectives of variable equivalent focal length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH411383A true CH411383A (fr) | 1966-04-15 |
Family
ID=10373658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1131563A CH411383A (fr) | 1962-09-14 | 1963-09-13 | Objectif optique à longueur focale variable |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5231743B1 (fr) |
| CH (1) | CH411383A (fr) |
| DE (1) | DE1289327B (fr) |
| FR (1) | FR1376655A (fr) |
| GB (1) | GB1064323A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1520489A (fr) * | 1967-01-25 | 1968-04-12 | Optique Prec Soc D | Objectif à distance focale variable |
| JPH1054938A (ja) * | 1996-08-12 | 1998-02-24 | Asahi Optical Co Ltd | 大口径非球面ズームレンズ系 |
| JP3723643B2 (ja) * | 1996-08-12 | 2005-12-07 | ペンタックス株式会社 | 高変倍ズームレンズ系 |
| CN105676434B (zh) * | 2016-04-27 | 2018-08-21 | 佛山华国光学器材有限公司 | 一种透雾60x大变倍光学系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB760588A (en) * | 1953-10-09 | 1956-11-07 | Watson W & Sons Ltd | Improvements in or relating to variable magnification optical systems |
| US2766658A (en) * | 1955-05-20 | 1956-10-16 | Schwesinger Gerhard | Variable focal length focusing lens system and device therefor |
| US3038378A (en) * | 1959-01-12 | 1962-06-12 | Bell & Howell Co | Variable focal length optical objective |
| DE1109397B (de) * | 1959-04-20 | 1961-06-22 | Dresden Feinmess | Lichtstarkes Objektiv veraenderlicher Brennweite mit einem mindest 6-fachen Variationsbereich |
-
1962
- 1962-09-14 GB GB35088/62A patent/GB1064323A/en not_active Expired
-
1963
- 1963-09-12 DE DER36100A patent/DE1289327B/de active Pending
- 1963-09-13 FR FR947414A patent/FR1376655A/fr not_active Expired
- 1963-09-13 CH CH1131563A patent/CH411383A/fr unknown
- 1963-09-14 JP JP38049040A patent/JPS5231743B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1289327B (de) | 1969-02-13 |
| FR1376655A (fr) | 1964-10-31 |
| GB1064323A (en) | 1967-04-05 |
| JPS5231743B1 (fr) | 1977-08-17 |
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