JPH0219038U - - Google Patents
Info
- Publication number
- JPH0219038U JPH0219038U JP9381288U JP9381288U JPH0219038U JP H0219038 U JPH0219038 U JP H0219038U JP 9381288 U JP9381288 U JP 9381288U JP 9381288 U JP9381288 U JP 9381288U JP H0219038 U JPH0219038 U JP H0219038U
- Authority
- JP
- Japan
- Prior art keywords
- lens system
- traveling direction
- objective lens
- light beam
- real
- 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
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
第１図は本考案のフアインダー光学系の斜視図
、第２図は第１図に示す光学系の分解斜視図、第
３図は第１図に示す光学系の背面図である。第４
図は他の遮光板を示す図である。第５図は、従来
一般的なポロプリズムを示す図である。
１，２……対物レンズ系、３……遮光板、５…
…接眼レンズ。
1 is a perspective view of the finder optical system of the present invention, FIG. 2 is an exploded perspective view of the optical system shown in FIG. 1, and FIG. 3 is a rear view of the optical system shown in FIG. 1. Fourth
The figure shows another light shielding plate. FIG. 5 is a diagram showing a conventional general Porro prism. 1, 2... Objective lens system, 3... Light shielding plate, 5...
...eyepiece.
Claims (1)
系との間に四面の反射面を有するポロプリズムを
配置した実像式のフアインダー系に於いて、光束
の進行方向から数えて第１の反射面と第４の反射
面とは相隣る位置関係を有し、これら反射面の間
であつて、且つ前記対物レンズ系を通過する光束
の進行方向に沿つて遮光板を配置したことを特徴
とする実像式フアインダー。 In a real-image finder system in which a Porro prism having four reflective surfaces is arranged between an objective lens system having positive refractive power and an eyepiece lens system, the first reflective surface is counted from the traveling direction of the light beam. It is characterized by having a positional relationship adjacent to the fourth reflecting surface, and disposing a light shielding plate between these reflecting surfaces and along the traveling direction of the light beam passing through the objective lens system. Real image finder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9381288U JPH0219038U (en) | 1988-07-15 | 1988-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9381288U JPH0219038U (en) | 1988-07-15 | 1988-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0219038U true JPH0219038U (en) | 1990-02-08 |
Family
ID=31318289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9381288U Pending JPH0219038U (en) | 1988-07-15 | 1988-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04274959A (en) * | 1991-03-04 | 1992-09-30 | Daifuku Co Ltd | Rail device |
-
1988
- 1988-07-15 JP JP9381288U patent/JPH0219038U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04274959A (en) * | 1991-03-04 | 1992-09-30 | Daifuku Co Ltd | Rail device |