GB2131249B - Auto-focus decision circuit - Google Patents
Auto-focus decision circuitInfo
- Publication number
- GB2131249B GB2131249B GB08325724A GB8325724A GB2131249B GB 2131249 B GB2131249 B GB 2131249B GB 08325724 A GB08325724 A GB 08325724A GB 8325724 A GB8325724 A GB 8325724A GB 2131249 B GB2131249 B GB 2131249B
- Authority
- GB
- United Kingdom
- Prior art keywords
- auto
- decision circuit
- focus decision
- focus
- circuit
- 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
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17597082A JPS5964818A (en) | 1982-10-05 | 1982-10-05 | Auto-focus discriminating circuit of camera or the like |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8325724D0 GB8325724D0 (en) | 1983-10-26 |
GB2131249A GB2131249A (en) | 1984-06-13 |
GB2131249B true GB2131249B (en) | 1986-08-20 |
Family
ID=16005426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08325724A Expired GB2131249B (en) | 1982-10-05 | 1983-09-26 | Auto-focus decision circuit |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5964818A (en) |
DE (1) | DE3336220A1 (en) |
GB (1) | GB2131249B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2690728B2 (en) * | 1986-07-01 | 1997-12-17 | オリンパス光学工業株式会社 | Auto focus camera |
US6563543B1 (en) | 1998-03-31 | 2003-05-13 | Hewlett-Packard Development Company, L.P. | Digital camera and method of using same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4085320A (en) * | 1976-10-07 | 1978-04-18 | Honeywell Inc. | Automatic focus system with loss of correlation inhibit |
JPS53131035A (en) * | 1977-04-21 | 1978-11-15 | Bell & Howell Japan | Automatic focal point adjusting device |
US4247187A (en) * | 1977-07-14 | 1981-01-27 | Canon Kabushiki Kaisha | Camera having focus detection device |
JPS5420726A (en) * | 1977-07-18 | 1979-02-16 | Bell & Howell Japan | Automatic focus adjusting device |
JPS5451556A (en) * | 1977-09-29 | 1979-04-23 | Canon Inc | Distance measuring apparatus |
JPS55153921A (en) * | 1979-05-17 | 1980-12-01 | Seiko Koki Kk | Automatic focus controller |
JPS5626212A (en) * | 1979-08-10 | 1981-03-13 | Minolta Camera Co Ltd | Distance measuring device |
JPS5882211A (en) * | 1981-11-12 | 1983-05-17 | Asahi Optical Co Ltd | Auto-focusing device |
-
1982
- 1982-10-05 JP JP17597082A patent/JPS5964818A/en active Pending
-
1983
- 1983-09-26 GB GB08325724A patent/GB2131249B/en not_active Expired
- 1983-10-05 DE DE19833336220 patent/DE3336220A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2131249A (en) | 1984-06-13 |
GB8325724D0 (en) | 1983-10-26 |
DE3336220A1 (en) | 1984-05-30 |
JPS5964818A (en) | 1984-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |