ATA917676A - Pankratisches objektiv - Google Patents
Pankratisches objektivInfo
- Publication number
- ATA917676A ATA917676A AT917676A AT917676A ATA917676A AT A917676 A ATA917676 A AT A917676A AT 917676 A AT917676 A AT 917676A AT 917676 A AT917676 A AT 917676A AT A917676 A ATA917676 A AT A917676A
- Authority
- AT
- Austria
- Prior art keywords
- panratic
- lens
- panratic lens
- 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
- G02B15/177—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 negative front lens or group of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- 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
- G02B15/1445—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 negative
- G02B15/144511—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 negative arranged -+-+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lenses (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT917676A AT346102B (de) | 1976-12-10 | 1976-12-10 | Pankratisches objektiv |
DE19772754950 DE2754950A1 (de) | 1976-12-10 | 1977-12-09 | Pankratisches objektiv |
FR7737163A FR2373803A1 (fr) | 1976-12-10 | 1977-12-09 | Objectif pancratique |
JP14870977A JPS5373150A (en) | 1976-12-10 | 1977-12-09 | Zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT917676A AT346102B (de) | 1976-12-10 | 1976-12-10 | Pankratisches objektiv |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA917676A true ATA917676A (de) | 1978-02-15 |
AT346102B AT346102B (de) | 1978-10-25 |
Family
ID=3611841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT917676A AT346102B (de) | 1976-12-10 | 1976-12-10 | Pankratisches objektiv |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5373150A (de) |
AT (1) | AT346102B (de) |
DE (1) | DE2754950A1 (de) |
FR (1) | FR2373803A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2780309B2 (ja) * | 1989-02-28 | 1998-07-30 | ミノルタ株式会社 | コンパクトなズームレンズ系 |
JP2516522B2 (ja) * | 1992-04-21 | 1996-07-24 | 株式会社エルモ社 | ワイドズ―ムレンズ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924934A (en) * | 1972-12-26 | 1975-12-09 | David S Grey | Compact seven element zoom lens with mechanical compensation |
-
1976
- 1976-12-10 AT AT917676A patent/AT346102B/de not_active IP Right Cessation
-
1977
- 1977-12-09 DE DE19772754950 patent/DE2754950A1/de not_active Withdrawn
- 1977-12-09 FR FR7737163A patent/FR2373803A1/fr not_active Withdrawn
- 1977-12-09 JP JP14870977A patent/JPS5373150A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2373803A1 (fr) | 1978-07-07 |
AT346102B (de) | 1978-10-25 |
DE2754950A1 (de) | 1978-06-15 |
JPS5373150A (en) | 1978-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EIH | Change in the person of patent owner | ||
ELJ | Ceased due to non-payment of the annual fee |