JPH023528U - - Google Patents
Info
- Publication number
- JPH023528U JPH023528U JP8122488U JP8122488U JPH023528U JP H023528 U JPH023528 U JP H023528U JP 8122488 U JP8122488 U JP 8122488U JP 8122488 U JP8122488 U JP 8122488U JP H023528 U JPH023528 U JP H023528U
- Authority
- JP
- Japan
- Prior art keywords
- plano
- convex lens
- eyepiece
- crt
- placed opposite
- 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
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Blocking Light For Cameras (AREA)
Description
第１図及び第２図は、本考案による電子ビユー
フアインダーの接眼レンズを構成する場合の、平
凸形状レンズ等の位置関係を示す図である。第３
図は、本考案に基づき光学系の設計を行つた一例
について、その設定値を示す図、第４図は、各種
収差特性を示す図である。
１…平凸形状レンズ、２…ＣＲＴ（ＣＲＴ表示
面）、４…アイポイント、３…接眼部。
1 and 2 are diagrams showing the positional relationship of plano-convex lenses, etc. when constructing the eyepiece lens of the electronic view finder according to the present invention. Third
The figure shows set values for an example of an optical system designed based on the present invention, and FIG. 4 shows various aberration characteristics. 1... Plano-convex lens, 2... CRT (CRT display surface), 4... Eye point, 3... Eyepiece.
Claims (1)
に対向配置されるＣＲＴと、前記平凸形状レンズ
の平面側に対向配置され、アイポイントを規定す
る接眼部とを備え、前記ＣＲＴから前記アイポイ
ントまでの距離Ｌと、明視倍率ｍが １０００／３Ｌ−１≦ｍ≦１０００／３Ｌ＋１ を満足するように構成されていることを特徴とす
る電子ビユーフアインダーの接眼部。[Claims for Utility Model Registration] A plano-convex lens, a CRT placed opposite to the convex side of the plano-convex lens, and an eyepiece placed opposite to the flat side of the plano-convex lens to define an eye point. an electronic viewfinder, characterized in that the distance L from the CRT to the eyepoint and the clear vision magnification m satisfy the following: 1000/3L-1≦m≦1000/3L+1. eyepiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8122488U JPH023528U (en) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8122488U JPH023528U (en) | 1988-06-20 | 1988-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023528U true JPH023528U (en) | 1990-01-10 |
Family
ID=31306014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8122488U Pending JPH023528U (en) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023528U (en) |
-
1988
- 1988-06-20 JP JP8122488U patent/JPH023528U/ja active Pending
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