PROBLEM TO BE SOLVED: To provide a translucent screen that features flat scattered light intensity within a predetermined scattering angle.SOLUTION: A translucent screen 50 of the present invention includes a first principal surface 51 extending in a first direction and a second direction perpendicular to the first direction, and a second principal surface 52 opposing the first principal surface 51 and extending in the first direction and the second direction. The first principal surface 51 is provided with a microlens array 57 comprising a plurality of microlenses 55, and a light diffusion layer 60 containing a plurality of fine particles is disposed between the first principal surface 51 and the second principal surface 52, the light diffusion layer 60 having a diffusion angle that is 0.2 to 0.4 times a diffusion angle of the microlens array 57, inclusive.SELECTED DRAWING: Figure 4
【課題】所定の散乱角内で、散乱光強度がフラットな透過型スクリーンを提供する。【解決手段】本発明の透過型スクリーン50は、第1方向と、前記第1方向と直交する第2方向に広がる第1主面51と、前記第1主面51と対向すると共に、前記第1方向と、前記第2方向に広がる第2主面52と、を有し、前記第1主面51には、複数のマイクロレンズ55からなるマイクロレンズアレイ57が設けられ、前記第1主面51と前記第2主面52との間には、複数の微粒子を含む光拡散層60が設けられ、前記光拡散層60の拡散角は、前記マイクロレンズアレイ57の拡散角の0.2以上0.4以下であることを特徴とする。【選択図】 図4
TRANSLUCENT SCREEN AND HEAD-UP DISPLAY DEVICE HAVING THE SAME
透過型スクリーン及びそれを用いたヘッドアップディスプレイ装置
2016-05-09
Patent
Electronic Resource
Japanese
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 / G09F DISPLAYING , Anzeigewesen |
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