JPS49141841U - - Google Patents
Info
- Publication number
- JPS49141841U JPS49141841U JP4012473U JP4012473U JPS49141841U JP S49141841 U JPS49141841 U JP S49141841U JP 4012473 U JP4012473 U JP 4012473U JP 4012473 U JP4012473 U JP 4012473U JP S49141841 U JPS49141841 U JP S49141841U
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G02B15/22—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 movable lens means specially adapted for focusing at close distances
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4012473U JPS49141841U (en) | 1973-04-04 | 1973-04-04 | |
FR7411815A FR2224768B1 (en) | 1973-04-04 | 1974-04-03 | |
DE19742416400 DE2416400A1 (en) | 1973-04-04 | 1974-04-04 | ZOOM LENS |
GB1492574A GB1461614A (en) | 1973-04-04 | 1974-04-04 | Zoom lenses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4012473U JPS49141841U (en) | 1973-04-04 | 1973-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS49141841U true JPS49141841U (en) | 1974-12-06 |
Family
ID=12572061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4012473U Pending JPS49141841U (en) | 1973-04-04 | 1973-04-04 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS49141841U (en) |
DE (1) | DE2416400A1 (en) |
FR (1) | FR2224768B1 (en) |
GB (1) | GB1461614A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57186872A (en) * | 1981-05-13 | 1982-11-17 | Hitachi Ltd | Auto-focusing device of video camera |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3659921A (en) * | 1969-07-26 | 1972-05-02 | Canon Kk | Zoom lens capable of extreme closeup photography |
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1973
- 1973-04-04 JP JP4012473U patent/JPS49141841U/ja active Pending
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1974
- 1974-04-03 FR FR7411815A patent/FR2224768B1/fr not_active Expired
- 1974-04-04 DE DE19742416400 patent/DE2416400A1/en active Pending
- 1974-04-04 GB GB1492574A patent/GB1461614A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3659921A (en) * | 1969-07-26 | 1972-05-02 | Canon Kk | Zoom lens capable of extreme closeup photography |
Also Published As
Publication number | Publication date |
---|---|
FR2224768A1 (en) | 1974-10-31 |
GB1461614A (en) | 1977-01-13 |
DE2416400A1 (en) | 1974-10-24 |
FR2224768B1 (en) | 1976-12-17 |