JPS6299034U - - Google Patents
Info
- Publication number
- JPS6299034U JPS6299034U JP1985191359U JP19135985U JPS6299034U JP S6299034 U JPS6299034 U JP S6299034U JP 1985191359 U JP1985191359 U JP 1985191359U JP 19135985 U JP19135985 U JP 19135985U JP S6299034 U JPS6299034 U JP S6299034U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- pentaprism
- light receiving
- receiving element
- half mirror
- 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
- 238000005375 photometry Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Exposure Control For Cameras (AREA)
Description
第１図はこの考案に係るカメラの測光装置の要
部の一例を示す構成図、第２図及び第３図はペン
タプリズムの第１反射面の構成図である。
１０…撮像光学系、１…フオーカスレンズ系、
３…マスターレンズ系、４…クイツクリターンミ
ラー、７…撮像素子、２０…フアインダー、１１
…ピント板、１２…ペンタプリズム、１２ｃ…第
１反射面、１２ｄ…第２反射面、１３…アイピー
スレンズ、１５…測光用受光素子、２１…ハーフ
ミラー、２４…部分反射面、２５…透明部。
FIG. 1 is a block diagram showing an example of a main part of a photometric device for a camera according to this invention, and FIGS. 2 and 3 are block diagrams of a first reflecting surface of a pentaprism. 10...Imaging optical system, 1...Focus lens system,
3...Master lens system, 4...Quick return mirror, 7...Image sensor, 20...Finder, 11
...Focus plate, 12...Penta prism, 12c...First reflective surface, 12d...Second reflective surface, 13...Eyepiece lens, 15...Photometry light receiving element, 21...Half mirror, 24...Partial reflective surface, 25...Transparent part .
Claims (1)
たは部分反射面とすると共に、上記第１反射面の
後方であつて、主光線の射出方向の位置に受光素
子を設けたことを特徴とするカメラの測光装置。 Photometry for a camera, characterized in that the first reflecting surface of the pentaprism is a half mirror or a partial reflecting surface, and a light receiving element is provided at a position behind the first reflecting surface and in the emission direction of the principal ray. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985191359U JPS6299034U (en) | 1985-12-11 | 1985-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985191359U JPS6299034U (en) | 1985-12-11 | 1985-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6299034U true JPS6299034U (en) | 1987-06-24 |
Family
ID=31145426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985191359U Pending JPS6299034U (en) | 1985-12-11 | 1985-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6299034U (en) |
-
1985
- 1985-12-11 JP JP1985191359U patent/JPS6299034U/ja active Pending
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