PROBLEM TO BE SOLVED: To provide a transmission type screen having improved visibility.SOLUTION: A transmission type screen includes a first lens array surface 382a having a plurality of first miro-lenses 383a arranged thereon, and a second lens array surface 382b provided distant in a direction perpendicular to the first lens array surface 382a and having a plurality of second micro-lenses 383b with a different shape from that of the first micro-lenses 383a arranged thereon. The first micro-lens 383a has a contour line in the vicinity of the apex in a circular or elliptical shape, and the second micro-lens 383b has a contour line in the vicinity of the apex in an elliptical shape having different ellipticity from the contour line of the first micro-lens 383a.

    【課題】視認性を高めた透過型スクリーンを提供する。【解決手段】透過型スクリーンは、第1のマイクロレンズ383aが複数配列された第1レンズアレイ面382aと、第1レンズアレイ面382aに垂直な方向に離れて設けられ、第1のマイクロレンズ383aとは形状の異なる第2のマイクロレンズ383bが複数配列された第2レンズアレイ面382bと、を備える。第1のマイクロレンズ383aは、頂点付近における等高線が円または楕円形状であり、第2のマイクロレンズ383bは、頂点付近における等高線が第1のマイクロレンズ383aの等高線と楕円率の異なる楕円形状である。【選択図】図7


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    Title :

    TRANSMISSION TYPE SCREEN AND IMAGE DISPLAY DEVICE USING THE SAME


    Additional title:

    透過型スクリーン及びそれを用いた画像表示装置


    Contributors:

    Publication date :

    2015-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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