JPS6424336U - - Google Patents
Info
- Publication number
- JPS6424336U JPS6424336U JP11684287U JP11684287U JPS6424336U JP S6424336 U JPS6424336 U JP S6424336U JP 11684287 U JP11684287 U JP 11684287U JP 11684287 U JP11684287 U JP 11684287U JP S6424336 U JPS6424336 U JP S6424336U
- Authority
- JP
- Japan
- Prior art keywords
- lenticular lens
- transmission screen
- surface side
- lens
- lenticular
- 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
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図、第４図は本考案の透過型スクリーンの
非対称レンチキユラーのレンズ単位の一構成例を
示した図である。第２図は第１図のレンズ単位を
説明するための図である。第３図、第５図は視野
角とスクリーンゲインとの関係を示す図である。
第６図〜第９図は本考案に係る実施例を示すスク
リーンの斜視図である。
１：非対称レンチキユラーのレンズ単位、２：
レンズ単位の光軸、３：スクリーン基材、１２，
１４，２４：非対称レンチキユラー、１６：サー
キユラーのフレネルレンズ、１３，１７，２０，
２１，２２，２３：レンチキユラー。
FIGS. 1 and 4 are diagrams showing an example of the configuration of an asymmetric lenticular lens unit of a transmission screen according to the present invention. FIG. 2 is a diagram for explaining the lens unit of FIG. 1. FIGS. 3 and 5 are diagrams showing the relationship between viewing angle and screen gain.
6 to 9 are perspective views of screens showing embodiments of the present invention. 1: Asymmetric lenticular lens unit, 2:
Optical axis of lens unit, 3: Screen base material, 12,
14, 24: Asymmetric lenticular, 16: Circular Fresnel lens, 13, 17, 20,
21, 22, 23: Lenticular.
Claims (1)
１つの面に水平方向に延びるレンチキユラーレン
ズが形成された透過型スクリーンであつて、この
レンチキユラーレンズのレンズ単位が所定の出射
光量分布を生ぜしめるようにその光軸に対して非
対称形になつていることを特徴とする透過型スク
リーン。 (2) 入射面側に垂直方向のレンチキユラーレン
ズが形成されていると共に、そのレンチキユラー
レンズに対応して出射面側に垂直方向のレンチキ
ユラーレンズが形成され、さらに出射面側のレン
チキユラーレンズに非対称のレンチキユラーレン
ズが重畳的に形成されていることを特徴とする実
用新案登録請求の範囲第１項記載の透過型スクリ
ーン。 (3) 一面内に形成されたレンチキユラーレンズ
のうち、一部が前記非対称形のレンチキユラーレ
ンズで構成され、他の部分が通常の対称形レンチ
キユラーレンズで構成されていることを特徴とす
る実用新案登録請求の範囲第１項記載の透過型ス
クリーン。[Claims for Utility Model Registration] (1) A transmission screen comprising an incident surface and an observation surface, on at least one of which a lenticular lens extending in the horizontal direction is formed, the lenticular lens A transmission screen characterized in that the lens unit is asymmetrical with respect to its optical axis so as to produce a predetermined output light amount distribution. (2) A vertical lenticular lens is formed on the incident surface side, and a vertical lenticular lens is formed on the exit surface side corresponding to the lenticular lens, and a vertical lenticular lens is also formed on the exit surface side. 2. The transmission screen according to claim 1, wherein the lenticular lens is formed with an asymmetric lenticular lens superimposed on the lenticular lens. (3) Among the lenticular lenses formed in one plane, a part is composed of the asymmetrical lenticular lens, and the other part is composed of the normal symmetrical lenticular lens. A transmission screen according to claim 1 of the patented utility model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11684287U JPS6424336U (en) | 1987-07-31 | 1987-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11684287U JPS6424336U (en) | 1987-07-31 | 1987-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6424336U true JPS6424336U (en) | 1989-02-09 |
Family
ID=31359752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11684287U Pending JPS6424336U (en) | 1987-07-31 | 1987-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991430U (en) * | 1983-09-05 | 1984-06-21 | 小松ゼノア株式会社 | brush cutter engine |
| WO2002025369A1 (en) * | 2000-09-21 | 2002-03-28 | Hitachi, Ltd. | Image display |
-
1987
- 1987-07-31 JP JP11684287U patent/JPS6424336U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991430U (en) * | 1983-09-05 | 1984-06-21 | 小松ゼノア株式会社 | brush cutter engine |
| JPH0352979Y2 (en) * | 1983-09-05 | 1991-11-19 | ||
| WO2002025369A1 (en) * | 2000-09-21 | 2002-03-28 | Hitachi, Ltd. | Image display |
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