To lower costs, to reduce space, to improve luminance of an image, and to reduce an energy consumption and heat generation.SOLUTION: There is disclosed a multi-viewpoint angle aerial projection device that has a plurality of directional light sources, a display panel, and an imaging concave mirror. The plurality of directional light sources emit a plurality of directional light beams which light up the display panel to form a plurality of directional image beams. The plurality of directional image beams are reflected by a reflector to travel toward the concave mirror. Then the plurality of directional image beams are reflected by the concave mirror respectively to travel toward a plurality of visual field regions differing in visual field angle to form a plurality of aerial projection real images. Lighting regions of the plurality of directional light beams on a display panel are substantially the same, or lighting regions of the plurality of directional image beams on the imaging concave mirror are substantially the same, and the plurality of visual field regions become large in mutual visual field angle difference.SELECTED DRAWING: Figure 8B
【課題】コストが下がり、スペースが縮小し、像の輝度が向上し、エネルギー消費および発熱を低減する。【解決手段】複数の指向性光源、表示パネルおよび結像凹面鏡を有する多視点角度空中投影装置を開示する。複数の指向性光源は、表示パネルを照明して複数の指向性像ビームを形成するための複数の指向性光ビームを放出する。複数の指向性像ビームは、反射器で反射して凹面鏡に向かう。その後、複数の指向性像ビームはそれぞれ、凹面鏡で反射して、視野角の異なる複数の視野領域に向かって複数の空中投影実像を形成する。表示パネル上の複数の指向性光ビームの照明領域はほとんど同じであるか、あるいは、結像凹面鏡上の複数の指向性像ビームの照明領域はほとんど同じであり、複数の視野領域どうしの視野角差が大きくなる。【選択図】図8B
MULTI-VIEWPOINT ANGLE AERIAL PROJECTION DEVICE
多視点角度空中投影装置
2024-01-10
Patent
Electronic Resource
Japanese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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