JPS55106429A - Automatic focusing camera - Google Patents
Automatic focusing cameraInfo
- Publication number
- JPS55106429A JPS55106429A JP1408779A JP1408779A JPS55106429A JP S55106429 A JPS55106429 A JP S55106429A JP 1408779 A JP1408779 A JP 1408779A JP 1408779 A JP1408779 A JP 1408779A JP S55106429 A JPS55106429 A JP S55106429A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- mirrors
- focusing
- optical path
- incident 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
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To perform focusing detection with high accuracy by leading the incident light passing through the peripheral two regions of an objective lens to a spectral lens and mirrors and placing a focusing detecting element on the optical path of the mirrors.
CONSTITUTION: Behind an objective lens 1 are provided a pair of mirrors 12 in symmetrical positions with an optical axis 2 as their axis. A concave lens 13 as a spectral lens for leading light to these mirrors is provided in ring form. Hence, the convave lens 13 does not obstruct the optical path to the finder optical system and film 11. A focusing detecting element 14 is disposed on the reflecting optical path of this mirror 12. Hence, by detecting the focusing from the incident light passing the peripheral two regions of the lens, the light for focus detection may be fetched without becoming hindrance to the incident light to the finder system or film, whereby the detection accuracy may be enhanced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1408779A JPS55106429A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1408779A JPS55106429A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55106429A true JPS55106429A (en) | 1980-08-15 |
Family
ID=11851318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1408779A Pending JPS55106429A (en) | 1979-02-09 | 1979-02-09 | Automatic focusing camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55106429A (en) |
-
1979
- 1979-02-09 JP JP1408779A patent/JPS55106429A/en active Pending
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