JPS63153243U - - Google Patents
Info
- Publication number
- JPS63153243U JPS63153243U JP1987046176U JP4617687U JPS63153243U JP S63153243 U JPS63153243 U JP S63153243U JP 1987046176 U JP1987046176 U JP 1987046176U JP 4617687 U JP4617687 U JP 4617687U JP S63153243 U JPS63153243 U JP S63153243U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- screen
- rear projection
- projection screen
- continuous
- 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 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図および第２図はこの考案の一実施例を示
す背面投影スクリーンの一部分の斜視図および１
つのレンズ単位の光拡散状態図、第３図および第
４図はこの考案の他の実施例を示す背面投影スク
リーンの一部分の斜視図および１つのレンズ単位
の光拡散状態図である。
１…スクリーン本体、２…レンチキユラーレン
ズ、３…レンズ単位、４…レンズ部、４ａ…凹レ
ンズ面、４ｂ…凸レンズ面。
1 and 2 are perspective views of a portion of a rear projection screen showing one embodiment of this invention, and FIG.
FIGS. 3 and 4 are perspective views of a portion of a rear projection screen and diagrams of light diffusion of one lens unit, respectively, showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Screen body, 2... Lenticular lens, 3... Lens unit, 4... Lens part, 4a... Concave lens surface, 4b... Convex lens surface.
Claims (1)
させる背面投影スクリーンであつて、スクリーン
表面に多数のレンズ単位が連続するレンチキユラ
ーレンズを形成してなり、かつ前記レンチキユラ
ーレンズの各レンズ単位のレンズ部を、その中央
を凹レンズ面とし、両側を前記凹レンズ面と連続
する凸レンズ面とした形状としたことを特徴とす
る背面投影スクリーン。 A rear projection screen for observing an optical image projected from the rear side from the front side, the screen comprising a lenticular lens in which a large number of continuous lens units are formed on the screen surface, and each lens of the lenticular lens. 1. A rear projection screen characterized in that each unit lens portion has a shape with a concave lens surface at the center and convex lens surfaces continuous with the concave lens surface on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046176U JPS63153243U (en) | 1987-03-28 | 1987-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987046176U JPS63153243U (en) | 1987-03-28 | 1987-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63153243U true JPS63153243U (en) | 1988-10-07 |
Family
ID=30865597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987046176U Pending JPS63153243U (en) | 1987-03-28 | 1987-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153243U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159733A (en) * | 1983-12-30 | 1985-08-21 | ノ−ス・アメリカン・フィリップス・コンシュ−マ・エレクトロニクス・コ−ポレ−ション | Back production screen |
-
1987
- 1987-03-28 JP JP1987046176U patent/JPS63153243U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159733A (en) * | 1983-12-30 | 1985-08-21 | ノ−ス・アメリカン・フィリップス・コンシュ−マ・エレクトロニクス・コ−ポレ−ション | Back production screen |