JPS60161341U

JPS60161341U - Transparent screen

Info

Publication number: JPS60161341U
Application number: JP1984048529U
Authority: JP
Inventors: 伊沢　晃; 誠本田; 岸田　秀雄
Original assignee: 大日本印刷株式会社
Priority date: 1984-04-04
Filing date: 1984-04-04
Publication date: 1985-10-26

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

[Brief explanation of the drawing]

第１図は本考案の透過型スクリーンの構成を示す斜視図
である一第２図は本考案の透過型スクリーンの１例の断
面図である。１．２・・・レンチキュラーシート、１１・・・入射光
側の凸レンズ、１２・・・出射光側の凸レンズ、３・・
・光源。 −第１図第２図FIG. 1 is a perspective view showing the structure of the transmission screen of the present invention, and FIG. 2 is a sectional view of an example of the transmission screen of the invention. 1.2... Lenticular sheet, 11... Convex lens on the incident light side, 12... Convex lens on the output light side, 3...
·light source. -Figure 1Figure 2

Claims

[Claims for Utility Model Registration] (1) Two lenticular sheets 1 and 2 having lenticular lenses on the front and back sides of a transparent or translucent substrate
are arranged so that the lens axis of one of them is arranged horizontally to appropriately diffuse the light from the light source 3 in the vertical direction, and the lens axis of the other 2 is arranged vertically so that the light is diffused left and right. When the thickness T1 of the lenticular sheet 1 is 1,
The pitch P1 of the lenses is 0.3 to 0.4, and the diameter DIIA of the convex lens 11 on the incident light side in the direction horizontal to the lenticular sheet surface is 0.20 to 0.35. Vertical diameter DI
IB is set to 1:1 to 1.5 with respect to DI IA, and the diameter D12A in the direction horizontal to the lenticular sheet surface of the convex lens 12 on the output light side is 0.15 to 0.2\diameter D in the perpendicular direction.
A transmission screen 10° characterized in that the ratio of 12B to D12A is 1:1 to 2. (2) When the thickness T1 of the one lenticular sheet 1 is 1, the pitch P1 is about 0.35. The cross-sectional shape of the convex lens 11 on the incident light side is approximated to an ellipse, and the diameter DIIA in the direction horizontal to the lenticular sheet surface is approximately 0.3, and the diameter DIIB in the direction perpendicular to the lenticular sheet surface is approximately 0.39X.
2 is approximated to an ellipse, and the diameter D12A in the direction horizontal to the lenticular sheet surface is approximately 0.20. Transmissive screen 1.0° (3) of the utility model registration claim 1 with a diameter D12B in the vertical direction of about 0.24; Although the optical axis of the convex lens 12 on the outgoing light side coincides with the center of the screen,
The transmission screen 10° (4) of the utility model registration claim 1 or 2, which gradually deviates from the center as it moves away from the center. The one lenticular sheet 1
outgoing light. Transmissive screen 10° (5) according to any one of claims 1 to 3, wherein the radius of curvature of the convex lens on the side is larger than the radius of curvature of the convex lens on the output light side. The transmission screen 10° according to any one of claims 1 to 4 of the utility model registration claim, which is matte-finished on at least one side of the screen.