JPS5232324A - Photoelectric detecting device for in or out of focus in the optical s ystem - Google Patents
Photoelectric detecting device for in or out of focus in the optical s ystemInfo
- Publication number
- JPS5232324A JPS5232324A JP10800875A JP10800875A JPS5232324A JP S5232324 A JPS5232324 A JP S5232324A JP 10800875 A JP10800875 A JP 10800875A JP 10800875 A JP10800875 A JP 10800875A JP S5232324 A JPS5232324 A JP S5232324A
- Authority
- JP
- Japan
- Prior art keywords
- focus
- ystem
- optical
- detecting device
- photoelectric detecting
- 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.)
- Granted
Links
Landscapes
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
PURPOSE: To detect in or out of focus with a high accuracy by fixing a chart plate in which the arranging directions of patterns are changed, and scanning the image of an object with a rotatable prism.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10800875A JPS5232324A (en) | 1975-09-08 | 1975-09-08 | Photoelectric detecting device for in or out of focus in the optical s ystem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10800875A JPS5232324A (en) | 1975-09-08 | 1975-09-08 | Photoelectric detecting device for in or out of focus in the optical s ystem |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5232324A true JPS5232324A (en) | 1977-03-11 |
JPS5613284B2 JPS5613284B2 (en) | 1981-03-27 |
Family
ID=14473640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10800875A Granted JPS5232324A (en) | 1975-09-08 | 1975-09-08 | Photoelectric detecting device for in or out of focus in the optical s ystem |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5232324A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5642205A (en) * | 1979-09-17 | 1981-04-20 | Nippon Kogaku Kk <Nikon> | Focus detecting method |
JPS62262810A (en) * | 1986-05-01 | 1987-11-14 | コンジグリオ ナツオナ−レ デレ リセルシエ | Automatically focusing apparatus |
-
1975
- 1975-09-08 JP JP10800875A patent/JPS5232324A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5642205A (en) * | 1979-09-17 | 1981-04-20 | Nippon Kogaku Kk <Nikon> | Focus detecting method |
JPH0141962B2 (en) * | 1979-09-17 | 1989-09-08 | Nikon Kk | |
JPS62262810A (en) * | 1986-05-01 | 1987-11-14 | コンジグリオ ナツオナ−レ デレ リセルシエ | Automatically focusing apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS5613284B2 (en) | 1981-03-27 |
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