JPS5852518U - Single-lens reflex camera viewfinder - Google Patents
Single-lens reflex camera viewfinderInfo
- Publication number
- JPS5852518U JPS5852518U JP14721081U JP14721081U JPS5852518U JP S5852518 U JPS5852518 U JP S5852518U JP 14721081 U JP14721081 U JP 14721081U JP 14721081 U JP14721081 U JP 14721081U JP S5852518 U JPS5852518 U JP S5852518U
- Authority
- JP
- Japan
- Prior art keywords
- lens reflex
- reflex camera
- view
- viewfinder
- camera viewfinder
- 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
- Cameras In General (AREA)
- Blocking Light For Cameras (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図イ１口およびハは本考案に係るファインダーに用
いるペンタプリズムの一例を示す斜視図、平面図および
正面図、第２図は本考案の一実施例を示す概略的構成図
、第３図は第２図の実施例における焦点板を示す平面図
、第４図は、第２図の実施例におけるフィルムを示す平
面図、第５図は本考案に係るファインダーにより観察さ
れるファインダー視畔の一例を説明するための説明図で
ある。
１・・・・・・ペンタプリズム、２，３・・・・・・ダ
ハ面、２ａ、 ３ａ・・・・・・重点領域部、２ｂ、
３ｂ・・・・・・非重点領域部、４・・・・・・焦
点板、５・・・・・・撮影レンズ、６・・・・・・可動
反射鏡、７・・・・・・マイクロプリズム、８・・・・
・・フィル今、８ａ・・・・・・透視部、８ｂ・・・・
・・半遮光部、９−・曲コンデンサレンズ、１０・・・
・・・対物レンズ、１１・・・・・・接眼レンズ。1A and 1C are a perspective view, a plan view, and a front view showing an example of a pentaprism used in a finder according to the present invention; FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention; FIG. 4 is a plan view showing the film in the embodiment shown in FIG. 2, and FIG. 5 is a viewfinder view observed by the finder according to the present invention. It is an explanatory view for explaining an example. 1... Pentaprism, 2, 3... Roof surface, 2a, 3a... Focus area part, 2b,
3b...Non-focus area portion, 4...Focal plate, 5...Photographing lens, 6...Movable reflecting mirror, 7... Microprism, 8...
...Fill now, 8a...Transparent part, 8b...
・Semi-shielding part, 9-・Curved condenser lens, 10...
...Objective lens, 11...Eyepiece lens.
Claims (1)
メラのファインダーにおいて、ファインダー視野の中央
部を重点として光像が明瞭に観察し得るようダハ面を部
分的に異なる精度で加工形成してなるプラスチック製ペ
ンタゴナルダハプリズムと、ファインダー視野の略中央
部に対応する部分を透視部となしその他の部分を半遮光
部となしたフィルムとを備え、このフィルムを焦点面近
傍のファインダー光路中に介挿してなることを特徴とす
る一眼レフレックスカメラのファインダー。In the finder of a single-lens reflex camera using a pentagonal roof prism, the plastic pentagonal roof prism is made by processing and forming the roof surface with different precision in parts so that the light image can be observed clearly with emphasis on the center of the viewfinder field of view. and a film in which a portion corresponding to approximately the center of the viewfinder field of view is a transparent portion and the other portion is a semi-light-shielding portion, and this film is inserted into the finder optical path near the focal plane. A viewfinder for a single-lens reflex camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14721081U JPS5852518U (en) | 1981-10-05 | 1981-10-05 | Single-lens reflex camera viewfinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14721081U JPS5852518U (en) | 1981-10-05 | 1981-10-05 | Single-lens reflex camera viewfinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5852518U true JPS5852518U (en) | 1983-04-09 |
Family
ID=29940078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14721081U Pending JPS5852518U (en) | 1981-10-05 | 1981-10-05 | Single-lens reflex camera viewfinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852518U (en) |
-
1981
- 1981-10-05 JP JP14721081U patent/JPS5852518U/en active Pending
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