JPS55106431A - Automatic focusing camera - Google Patents
Automatic focusing cameraInfo
- Publication number
- JPS55106431A JPS55106431A JP1408979A JP1408979A JPS55106431A JP S55106431 A JPS55106431 A JP S55106431A JP 1408979 A JP1408979 A JP 1408979A JP 1408979 A JP1408979 A JP 1408979A JP S55106431 A JPS55106431 A JP S55106431A
- Authority
- JP
- Japan
- Prior art keywords
- focusing
- objective lens
- detecting element
- lens
- reflected light
- 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
Abstract
PURPOSE: To detect the focusing of the automatic focusing camera with high accuracy by leading the incident light passing through the peripheral two regions of an objective lens to a pair of reflecting mirrors right after the objective lens and placing a focusing detecting element in the reflected light converging position.
CONSTITUTION: A pair of mirrors 10 are provided behind an objective lens 1, in the laterally symmetrical positions, with the optical axis 2 of said lens as an axis, to reflect the incident light l passing through the peripheral parts of the objective lens 1. A focusing detecting element 11 is disposed in the position where the reflected light l' converges. Since whether focusing or non-focusing is detected in the single place without the formation of images separately on the right and left by the lens peripheral light, the constitution may be simplified without installing the focusing detecting element separately in two positions. Further the focusing is detected by the reflected light from the mirrors 10, hence the entry of optical noise in the detecting rays may be obviated and the accuracy of detection enhanced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1408979A JPS55106431A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1408979A JPS55106431A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55106431A true JPS55106431A (en) | 1980-08-15 |
Family
ID=11851374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1408979A Pending JPS55106431A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55106431A (en) |
-
1979
- 1979-02-09 JP JP1408979A patent/JPS55106431A/en active Pending
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