JPS6438634U - - Google Patents
Info
- Publication number
- JPS6438634U JPS6438634U JP1987134854U JP13485487U JPS6438634U JP S6438634 U JPS6438634 U JP S6438634U JP 1987134854 U JP1987134854 U JP 1987134854U JP 13485487 U JP13485487 U JP 13485487U JP S6438634 U JPS6438634 U JP S6438634U
- Authority
- JP
- Japan
- Prior art keywords
- green
- red
- rear projection
- full
- projection screen
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第1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断面図、第2図〜第4図はそ
れぞれこの考案の他の実施例を示す背面投影スク
リーンの一部分の断面図、第5図は背面投影型投
影装置の原理図、第6図は従来の背面投影スクリ
ーンを示す第5図A部における拡大断面図である
。
10……スクリーン本体、11……光屈折面、
12……プリズム面、12a……平坦面、12b
,12c……立上り面、13……光拡散層、14
……ブラツクストライプ、15……レンチキユラ
ーレンズ面、15a……レンズ面。
FIG. 1 is a sectional view of a part of a rear projection screen showing one embodiment of this invention, FIGS. 2 to 4 are sectional views of a part of a rear projection screen showing other embodiments of this invention, and FIG. This figure is a principle diagram of a rear projection type projector, and FIG. 6 is an enlarged sectional view of section A in FIG. 5 showing a conventional rear projection screen. 10...Screen body, 11...Light refractive surface,
12... Prism surface, 12a... Flat surface, 12b
, 12c... rising surface, 13... light diffusion layer, 14
...Black stripe, 15... Lenticular lens surface, 15a... Lens surface.
Claims (1)
に並ぶフルカラー画像を前面側から観察させる背
面投影スクリーンであつて、スクリーンに投影さ
れるフルカラー画像の隣接する赤、緑、青の画素
光のうち両側の画素光を中央の画素光側に屈折さ
せて前記赤、緑、青の画素光を重ね合せる多数の
プリズム面が連続する光屈折面を形成したことを
特徴とする背面投影スクリーン。 This is a rear projection screen that allows a full-color image projected from the back side, in which red, green, and blue pixels are arranged alternately, to be observed from the front side, and the adjacent red, green, and blue pixel lights of the full-color image projected onto the screen. A rear projection screen characterized in that a plurality of prism surfaces forming a continuous light refracting surface refract pixel light on both sides toward the central pixel light side and superimpose the red, green, and blue pixel lights.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987134854U JPH0521073Y2 (en) | 1987-09-03 | 1987-09-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987134854U JPH0521073Y2 (en) | 1987-09-03 | 1987-09-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438634U true JPS6438634U (en) | 1989-03-08 |
JPH0521073Y2 JPH0521073Y2 (en) | 1993-05-31 |
Family
ID=31393973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987134854U Expired - Lifetime JPH0521073Y2 (en) | 1987-09-03 | 1987-09-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0521073Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7492447B2 (en) | 2002-10-30 | 2009-02-17 | Atago Co., Ltd. | Refractometer |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794740A (en) * | 1980-12-03 | 1982-06-12 | Matsushita Electric Ind Co Ltd | Transmission type screen |
JPS58192033A (en) * | 1982-05-07 | 1983-11-09 | Hitachi Ltd | Radiosensitive composition and pattern formation using it |
-
1987
- 1987-09-03 JP JP1987134854U patent/JPH0521073Y2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794740A (en) * | 1980-12-03 | 1982-06-12 | Matsushita Electric Ind Co Ltd | Transmission type screen |
JPS58192033A (en) * | 1982-05-07 | 1983-11-09 | Hitachi Ltd | Radiosensitive composition and pattern formation using it |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7492447B2 (en) | 2002-10-30 | 2009-02-17 | Atago Co., Ltd. | Refractometer |
Also Published As
Publication number | Publication date |
---|---|
JPH0521073Y2 (en) | 1993-05-31 |