JPS5989325U - Stray light removal device for single-lens reflex cameras - Google Patents
Stray light removal device for single-lens reflex camerasInfo
- Publication number
- JPS5989325U JPS5989325U JP1982183552U JP18355282U JPS5989325U JP S5989325 U JPS5989325 U JP S5989325U JP 1982183552 U JP1982183552 U JP 1982183552U JP 18355282 U JP18355282 U JP 18355282U JP S5989325 U JPS5989325 U JP S5989325U
- Authority
- JP
- Japan
- Prior art keywords
- stray light
- lens reflex
- removal device
- detection sensor
- 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
- 230000011514 reflex Effects 0.000 title claims 3
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
Landscapes
- Blocking Light For Cameras (AREA)
- Exposure Control For Cameras (AREA)
- Focusing (AREA)
- Viewfinders (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図および第２図は、本考案の一実施例の構成を示す
それぞれ概略断面図であり、第１図は測距時の状態、第
２図は撮影時の状態を示す。
１・・・・・・光軸、２・・・・・・撮影レンズ、３・
・・・・・ミラーボックス、４・・・・・・メインミラ
ー、６・・・・・・ペンタプリズム、７・・・・・・接
眼レンズ、８・・・・・・測光素子、９・・・・・・サ
ブミラー、１０・・・・・・ミラーボックス底部、１１
・・・：・・合焦検出用センサ設置部、１２・・・・・
・合焦検出用センサ、１７．１９・・・・・・迷光防止
壁、１８・・・・・・シャツタ幕、２２−−−−−−フ
ィルム。1 and 2 are schematic cross-sectional views showing the configuration of an embodiment of the present invention, with FIG. 1 showing the state during distance measurement and FIG. 2 showing the state during photographing. 1...Optical axis, 2...Photographing lens, 3.
... Mirror box, 4 ... Main mirror, 6 ... Pentaprism, 7 ... Eyepiece, 8 ... Photometering element, 9. ...Sub mirror, 10...Mirror box bottom, 11
...: ...Focus detection sensor installation part, 12...
- Focus detection sensor, 17. 19... Stray light prevention wall, 18... Shaft curtain, 22 ------- film.
Claims (1)
ラーを退避可能に斜在せしめたミラボックス内に合焦検
出用センサを設置した一眼レフレックスカメラにおいて
、測距光路外における前記′シャッタ幕面、前記ミラー
ボックス内壁面等にて発生する迷光が少なくとも測距時
に前記合焦検出用センサに射入するのを防止する迷光防
止壁を、前記合焦検出用センサの設置部位近傍に設けた
ことを特徴とする一眼レフレックスカメラにおける迷光
除去装置。In a single-lens reflex camera in which a focus detection sensor is installed in a mirror box in which a mirror for viewfinder observation is retractably placed diagonally between the photographing lens and the shutter curtain, the shutter curtain outside the distance measuring optical path is used. A stray light prevention wall that prevents stray light generated on a surface, an inner wall surface of the mirror box, etc. from entering the focus detection sensor at least during distance measurement is provided near the installation site of the focus detection sensor. A stray light removal device for a single-lens reflex camera, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982183552U JPS5989325U (en) | 1982-12-03 | 1982-12-03 | Stray light removal device for single-lens reflex cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982183552U JPS5989325U (en) | 1982-12-03 | 1982-12-03 | Stray light removal device for single-lens reflex cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5989325U true JPS5989325U (en) | 1984-06-16 |
Family
ID=30397220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982183552U Pending JPS5989325U (en) | 1982-12-03 | 1982-12-03 | Stray light removal device for single-lens reflex cameras |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5989325U (en) |
-
1982
- 1982-12-03 JP JP1982183552U patent/JPS5989325U/en active Pending
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