JPS60161340U

JPS60161340U - Transparent screen

Info

Publication number: JPS60161340U
Application number: JP1984048528U
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。第２図は、第１図の透過型スクリーンの要部
を示す断面図である。１．２・・・−レンチキュラーシート、２１・・・入射
光側の凸レンズ、２２・・・出射光側の凸レンズ、３・
・・光源。FIG. 1 is a perspective view showing the configuration of a transmission screen according to the present invention. FIG. 2 is a sectional view showing essential parts of the transmission screen shown in FIG. 1. 1.2...-lenticular sheet, 21... Convex lens on the incident light side, 22... Convex lens on the output light side, 3.
··light source.

Claims

[Scope of utility model registration request]

(1) Two lenticular sheets 1 and 2 with lenticular lenses on the front and back sides of a transparent or translucent substrate
The lens axis of one of them 1 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 to diffuse it left and right. When the thickness T2 of the lenticular sheet 2 is 1, the pitch P2 of the lenses is 0.7 to 0.9, and the diameter D21A of the convex lens 21 on the incident light side in the direction horizontal to the lenticular sheet surface is 0.4 to 0.9. 0.5. Vertical diameter D21
B is 1:1 to 2 with respect to D21A, and the diameter D in the direction horizontal to the lenticular sheet surface of the convex lens 22 on the outgoing light side
22A to 0.20~o, :ys, diameter D22 in the vertical direction
Transparent screen 10° characterized by B being 0.8 to 1.2 with respect to D22A

(2) When the thickness T2 of the other lenticular sheet 2 is 1, the pitch P2 is approximately 0.81, the cross-sectional shape of the convex lens 21 on the incident light side is approximated to an ellipse, and the cross-sectional shape of the convex lens 21 on the incident light side is approximated to an ellipse. The diameter D21A is 0.45. The diameter D21B in the vertical direction is approximately 0.71, the shape of the convex lens on the outgoing light side is approximated to an ellipse, the diameter D22A in the horizontal direction to the lenticular sheet surface is approximately 0.2 & the diameter D2 in the vertical direction
Transmissive screen 10° according to claim 1 of the utility model registration claim where 2B is about 0.26

(3) The transmission screen 10 according to claim 1 or 2 of the utility model registration claim, in which at least one surface of the other lenticular sheet 2 is matted.
゜

(4) In the other lenticular sheet 2, the transmission screen 10° according to any one of claims 1 to 3 of the utility model registration claims, which forms a black light shielding part between the convex lenses on the outgoing light side.