JPS5425851A - Focus detector - Google Patents
Focus detectorInfo
- Publication number
- JPS5425851A JPS5425851A JP9118377A JP9118377A JPS5425851A JP S5425851 A JPS5425851 A JP S5425851A JP 9118377 A JP9118377 A JP 9118377A JP 9118377 A JP9118377 A JP 9118377A JP S5425851 A JPS5425851 A JP S5425851A
- Authority
- JP
- Japan
- Prior art keywords
- beam splitter
- focus detector
- optical axis
- providing
- focus detection
- 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
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
PURPOSE: To enable focus detection to be readily performed by providing a conical prism whose vertical angle is of a size of not causing full reflection between a beam splitter on the optical axis of the light split by the beam splitter and photo detectors.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9118377A JPS5425851A (en) | 1977-07-29 | 1977-07-29 | Focus detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9118377A JPS5425851A (en) | 1977-07-29 | 1977-07-29 | Focus detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5425851A true JPS5425851A (en) | 1979-02-27 |
Family
ID=14019327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9118377A Pending JPS5425851A (en) | 1977-07-29 | 1977-07-29 | Focus detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5425851A (en) |
-
1977
- 1977-07-29 JP JP9118377A patent/JPS5425851A/en active Pending
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