JPS634527U - - Google Patents
Info
- Publication number
- JPS634527U JPS634527U JP1986095975U JP9597586U JPS634527U JP S634527 U JPS634527 U JP S634527U JP 1986095975 U JP1986095975 U JP 1986095975U JP 9597586 U JP9597586 U JP 9597586U JP S634527 U JPS634527 U JP S634527U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting
- prism
- incident
- photometric device
- 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
- 230000004907 flux Effects 0.000 claims 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Exposure Control For Cameras (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は本考案の測光装置を電子カメラに適用
した場合の光学系の概略図、第２図はその一部の
斜視図、第３図は測光装置の側面図、第４図は測
光手段の平面図である。
１……撮影レンズ、２……可動鏡、９……フオ
ーカシングスクリーン、１０……第１プリズム、
１１……第２プリズム、１２……接眼レンズ、１
３……観察用の瞳、１４……採光窓、１５……測
光手段、１６……結像光学系。
Fig. 1 is a schematic diagram of an optical system when the photometric device of the present invention is applied to an electronic camera, Fig. 2 is a perspective view of a part thereof, Fig. 3 is a side view of the photometric device, and Fig. 4 is a photometric means. FIG. 1... Shooting lens, 2... Movable mirror, 9... Focusing screen, 10... First prism,
11...Second prism, 12...Eyepiece, 1
3... Eye for observation, 14... Lighting window, 15... Photometering means, 16... Imaging optical system.
Claims (1)
の入射面Ｓ１と前記入射面Ｓ１より入射した光束
を前記入射面Ｓ１と同一の平面上にある第２反射
面Ｓ１′方向へ反射させる為の第１反射面Ｓ２と
前記第１反射面Ｓ２そして前記第２反射面Ｓ１′
の順で反射した光束を射出させる為の射出面Ｓ３
とを有する第１プリズムと、前記第１プリズムの
射出面Ｓ３から射出してきた光束を入射させる為
の入射面Ｓ４と前記入射面Ｓ４と同一の平面ＳＳ
４上にある第４反射面Ｓ４′方向に反射させる為
の２つの反射面Ｓ５，Ｓ５′からなるダハ面Ｓ５
５′と前記ダハ面Ｓ５５′そして前記第４反射面
Ｓ４′の順で反射した光束を射出させる為の射出
面Ｓ６とを有する第２プリズムの２つのプリズム
からなるフアインダー光学系における前記第２プ
リズムの射出面Ｓ６からの光を該第２プリズム近
傍に配置した測光手段に導光させたことを特徴と
する測光装置。 (2) 前記測光手段は被写界を複数の領域に分割
して測光するマルチ測光手段であることを特徴と
する実用新案登録請求の範囲第１項記載の測光装
置。[Claims for Utility Model Registration] (1) An incident surface S1 for making the light beam for observing an object image incident, and a light beam incident from the incident surface S1 on the same plane as the incident surface S1 . A first reflecting surface S 2 for reflecting in the direction of a certain second reflecting surface S 1 ′, the first reflecting surface S 2 and the second reflecting surface S 1 ′.
Exit surface S3 for emitting the reflected light flux in the order of
a first prism having a first prism, an entrance surface S4 for allowing the light flux emerging from the exit surface S3 of the first prism to enter, and a plane SS that is the same as the entrance surface S4 .
A roof surface S 5 consisting of two reflecting surfaces S 5 and S 5 ′ for reflecting in the direction of the fourth reflecting surface S 4 ′ on
5 ' and an exit surface S6 for emitting the light beam reflected in the order of the roof surface S55' and the fourth reflecting surface S4 '. A photometric device characterized in that light from an exit surface S6 of a second prism is guided to photometric means arranged near the second prism. (2) The photometric device according to claim 1, wherein the photometric device is a multi-photometric device that measures light by dividing a field into a plurality of areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986095975U JPS634527U (en) | 1986-06-25 | 1986-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986095975U JPS634527U (en) | 1986-06-25 | 1986-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS634527U true JPS634527U (en) | 1988-01-13 |
Family
ID=30961187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986095975U Pending JPS634527U (en) | 1986-06-25 | 1986-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS634527U (en) |
-
1986
- 1986-06-25 JP JP1986095975U patent/JPS634527U/ja active Pending
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