JPH0364845B2 - - Google Patents
Info
- Publication number
- JPH0364845B2 JPH0364845B2 JP21136581A JP21136581A JPH0364845B2 JP H0364845 B2 JPH0364845 B2 JP H0364845B2 JP 21136581 A JP21136581 A JP 21136581A JP 21136581 A JP21136581 A JP 21136581A JP H0364845 B2 JPH0364845 B2 JP H0364845B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- focus detection
- optical system
- detection device
- teleconverter
- 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
- 238000001514 detection method Methods 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 210000001747 pupil Anatomy 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Optical Elements Other Than Lenses (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21136581A JPS58114008A (ja) | 1981-12-28 | 1981-12-28 | 自動焦点調節可能なテレコンバ−タ− |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21136581A JPS58114008A (ja) | 1981-12-28 | 1981-12-28 | 自動焦点調節可能なテレコンバ−タ− |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58114008A JPS58114008A (ja) | 1983-07-07 |
JPH0364845B2 true JPH0364845B2 (en]) | 1991-10-08 |
Family
ID=16604754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21136581A Granted JPS58114008A (ja) | 1981-12-28 | 1981-12-28 | 自動焦点調節可能なテレコンバ−タ− |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58114008A (en]) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62194242A (ja) * | 1986-02-21 | 1987-08-26 | Nippon Kogaku Kk <Nikon> | 交換レンズ鏡筒 |
-
1981
- 1981-12-28 JP JP21136581A patent/JPS58114008A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58114008A (ja) | 1983-07-07 |
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