JPS5430822A - Focus detector - Google Patents
Focus detectorInfo
- Publication number
- JPS5430822A JPS5430822A JP9681577A JP9681577A JPS5430822A JP S5430822 A JPS5430822 A JP S5430822A JP 9681577 A JP9681577 A JP 9681577A JP 9681577 A JP9681577 A JP 9681577A JP S5430822 A JPS5430822 A JP S5430822A
- Authority
- JP
- Japan
- Prior art keywords
- focus detector
- ball
- glass
- focus
- disposing
- 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.)
- Pending
Links
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To detect the focus with a high accuracy in a relatively simple constitution by arranging many very fine glass-ball lenses parallel with the focal plane, and disposing a photo-detector behind every glass-ball.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9681577A JPS5430822A (en) | 1977-08-12 | 1977-08-12 | Focus detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9681577A JPS5430822A (en) | 1977-08-12 | 1977-08-12 | Focus detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5430822A true JPS5430822A (en) | 1979-03-07 |
Family
ID=14175075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9681577A Pending JPS5430822A (en) | 1977-08-12 | 1977-08-12 | Focus detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5430822A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109341A (en) * | 1981-12-24 | 1983-06-29 | Toshiba Corp | Jam detector |
JPS60153256A (en) * | 1984-01-20 | 1985-08-12 | Sanyo Electric Co Ltd | Jam detecting circuit of original carrying device |
-
1977
- 1977-08-12 JP JP9681577A patent/JPS5430822A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109341A (en) * | 1981-12-24 | 1983-06-29 | Toshiba Corp | Jam detector |
JPS60153256A (en) * | 1984-01-20 | 1985-08-12 | Sanyo Electric Co Ltd | Jam detecting circuit of original carrying device |
JPH0329224B2 (en) * | 1984-01-20 | 1991-04-23 | Sanyo Electric Co |
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