PROBLEM TO BE SOLVED: To provide a projection device that is compact and inexpensive, has good light efficiency, and is capable of displaying a display image having a plurality of display distances.SOLUTION: A display unit 21 emits rays of projection light L which display display images M at predetermined positions. An image formation position adjustment mirror 23 receives the rays of projection light L emitted from the display unit 21, changes an image formation distance of at least a part of the incident rays of projection light L to be converted into a plurality of rays of first projection light L1 and second projection light L2 having different image formation distances and reflects the converted rays of the projection light. These first projection light L1 and second projection light L2 are made to form an image on a first screen 30 and a second screen 40 as a real image.SELECTED DRAWING: Figure 1
【課題】コンパクトで安価で光効率がよく、複数の表示距離を有する表示画像を表示可能とする。【解決手段】表示器21は、表示画像Mを所定の位置に表示する投影光Lを出射し、表示器21から出射される投影光Lを受光し、結像位置調整ミラー23は、入射した投影光Lのうち少なくとも一部の投影光Lの結像距離を変えて結像距離の異なる複数の第一投影光L1,第二投影光L2に変換して反射し、これら第一投影光L1,第二投影光L2を、第一スクリーン30,第二スクリーン40に実像として結像させる。【選択図】 図1
PROJECTION DEVICE AND HEAD-UP DISPLAY DEVICE
投影装置及びヘッドアップディスプレイ装置
2016-09-29
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 / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
Projection assembly, projection device and head-up display device
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