JPS59109332U - Transparent projection screen for bright room - Google Patents
Transparent projection screen for bright roomInfo
- Publication number
- JPS59109332U JPS59109332U JP1983000713U JP71383U JPS59109332U JP S59109332 U JPS59109332 U JP S59109332U JP 1983000713 U JP1983000713 U JP 1983000713U JP 71383 U JP71383 U JP 71383U JP S59109332 U JPS59109332 U JP S59109332U
- Authority
- JP
- Japan
- Prior art keywords
- projection screen
- transmission type
- lenticular sheet
- type projection
- utility
- 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
Landscapes
- Overhead Projectors And Projection Screens (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図は本発明の一実施例による透過型スクリーンとプ
ロジェクタとの組み合わせ例を示す斜視図、第２図は第
１図に示した透過型映写スクリーンの詳細を示す拡大図
、第３図は第２図に示したレンチキュラーシートの一部
分を示す斜視図、第４図および第５図は第２図に示した
レンチキュラーシートの断面図における光路を示す図で
ある。
２・・・プロジェクタ、４・・・本考案に係る透過型鉄
−写スクリーン、６． ８． ３０． ３２・・・レ
ンチキュラーシート、１０． １２． １６． １８・
・・柱状の凸面、１４．２０・・・光吸収帯、３４．３
６・・・出射面上の線分。
補正 昭５８． ２． ４
実用新案登録請求の範囲を次のように補正する。
■実用新案登録請求の範囲
（１）両凸型の柱状肉厚レンズを等しいピッチで複数並
列に配列するとともに、入射面による光束の収束点の位
置を出射側の凸面上にほぼ一致させてなるレンチキュラ
ーシートを、前記柱状肉厚レンズの母線方向が互いに直
交するように重ね合わせたことを特徴とする透過型映写
スクリーン。
（２）前記レンチキュラーシートにおける光線出射側の
各谷部に光吸収帯を設けたことを特徴とする実用新案登
録請求の範囲第１項記載の透過型映写スクリーン。
（３）光線出射面における前記柱状肉厚レンズの曲率を
入射面における曲率よりも大きくした前記レンチキュラ
ーシートを用いたことを特徴とする実用新案登録請求の
範囲第１項記載の透過型映写スクリーン。
（４） 前記柱状肉厚レンズの凸面を非円柱面とした
ことを特徴とする実用新案登録請求の範囲第１項記載の
透過型映写スクリーン。FIG. 1 is a perspective view showing an example of a combination of a transmission screen and a projector according to an embodiment of the present invention, FIG. 2 is an enlarged view showing details of the transmission projection screen shown in FIG. 1, and FIG. A perspective view showing a part of the lenticular sheet shown in FIG. 2, and FIGS. 4 and 5 are views showing optical paths in a cross-sectional view of the lenticular sheet shown in FIG. 2. 2... Projector, 4... Transmissive iron screen according to the present invention, 6. 8. 30. 32... Lenticular sheet, 10. 12. 16. 18・
... Columnar convex surface, 14.20 ... Light absorption band, 34.3
6...Line segment on the exit surface. Correction 1984. 2. 4. The scope of claims for utility model registration shall be amended as follows. ■Claims for Utility Model Registration (1) A plurality of thick biconvex columnar lenses are arranged in parallel at equal pitches, and the position of the convergence point of the light beam on the incident surface is almost aligned with the convex surface on the exit side. A transmission type projection screen characterized in that lenticular sheets are stacked on top of each other such that the generatrix directions of the thick columnar lenses are orthogonal to each other. (2) The transmission type projection screen according to claim 1, which is a registered utility model, characterized in that a light absorption band is provided in each valley on the light emitting side of the lenticular sheet. (3) The transmission type projection screen according to claim 1, which is characterized in that the lenticular sheet is used in which the curvature of the columnar thick lenses on the light exit surface is larger than the curvature on the light entrance surface. (4) The transmission type projection screen according to claim 1, wherein the convex surface of the columnar thick lens is a non-cylindrical surface.
Claims (4)
列に配列するとともに、入射面による光束の収束点の位
置を出射側の凸面状にほぼ一致させてなるレンチキュラ
、−シートを、前記柱状肉厚レンズの母線方向が互いに
直交するように重ね合わせたことを特徴とする透過型映
写スクリーン。(1) A lenticular sheet is formed by arranging a plurality of double-convex rod-shaped thick lenses in parallel at equal pitches, and making the position of the convergence point of the light beam on the incident surface almost coincide with the convex shape on the exit side. A transmission type projection screen characterized in that the columnar thick lenses are stacked one on top of the other so that their generatrix directions are perpendicular to each other.
の各谷部に光吸収帯を設けたことを特徴とする実用新案
登録請求の範囲第１項記載の透過型映写スクリーン。(2) The transmission type projection screen according to claim 1, which is a registered utility model, characterized in that a light absorption band is provided in each valley on the light emitting side in the □ of the lenticular sheet.
−率を入射面における曲率よりも太き（した前記へ− レンチキュラーシートを用いたことを特徴とする実用新
案登録請求の範囲第１項記載の透過型映写スクリーン。(3) Utility model registration claim 1, characterized in that a lenticular sheet is used in which the curvature of the columnar thick lens at the light exit surface is thicker than the curvature at the entrance surface. Transparent projection screen.
を特徴とする実用新案登録請求の範囲第１項記載の透過
型映写スクリーン。(4) The transmission type projection screen according to claim 1, wherein the convex surface of the columnar thick lens is a non-cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983000713U JPS59109332U (en) | 1983-01-10 | 1983-01-10 | Transparent projection screen for bright room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983000713U JPS59109332U (en) | 1983-01-10 | 1983-01-10 | Transparent projection screen for bright room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59109332U true JPS59109332U (en) | 1984-07-23 |
| JPH0334742Y2 JPH0334742Y2 (en) | 1991-07-23 |
Family
ID=30132456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983000713U Granted JPS59109332U (en) | 1983-01-10 | 1983-01-10 | Transparent projection screen for bright room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59109332U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5781255A (en) * | 1980-11-10 | 1982-05-21 | Toshiba Corp | Transmission type projection screen |
| JPS5859436A (en) * | 1981-10-06 | 1983-04-08 | Hitachi Ltd | projection screen |
| JPS58108523A (en) * | 1981-12-23 | 1983-06-28 | Toshiba Corp | Light defracting and diffusing plate device |
| JPS58192022A (en) * | 1982-05-06 | 1983-11-09 | Dainippon Printing Co Ltd | Lenticular lens sheet |
| JPS58205140A (en) * | 1982-05-25 | 1983-11-30 | Dainippon Printing Co Ltd | Transparent screen |
-
1983
- 1983-01-10 JP JP1983000713U patent/JPS59109332U/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5781255A (en) * | 1980-11-10 | 1982-05-21 | Toshiba Corp | Transmission type projection screen |
| JPS5859436A (en) * | 1981-10-06 | 1983-04-08 | Hitachi Ltd | projection screen |
| JPS58108523A (en) * | 1981-12-23 | 1983-06-28 | Toshiba Corp | Light defracting and diffusing plate device |
| JPS58192022A (en) * | 1982-05-06 | 1983-11-09 | Dainippon Printing Co Ltd | Lenticular lens sheet |
| JPS58205140A (en) * | 1982-05-25 | 1983-11-30 | Dainippon Printing Co Ltd | Transparent screen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334742Y2 (en) | 1991-07-23 |
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