To provide a virtual image display device suitable for adaption to a vehicle.SOLUTION: An HUD as a virtual image display device is composed to be loaded on a vehicle and displays an image formed as a virtual image. The HUD includes a light source for emitting an optical beam, an optical scanning unit for scanning an optical beam made incident from a light source at a scanning angle, and a drawing controller for controlling drawing of an image by driving the optical source and the optical scanner unit so that an image is drawn. The drawing controller switches the scanning angle between a wide viewing angle state with a scanning picture angle at a wide viewing angle and a narrow viewing angle state reducing the scanning picture angle for a wide viewing state to a narrow viewing angle.SELECTED DRAWING: Figure 8
【課題】車両への採用に適した虚像表示装置を提供する。【解決手段】虚像表示装置としてのHUDは、車両に搭載されるように構成され、虚像として結像される画像を表示する。HUDは、光ビームを発光する光源と、画像を描画するように、光源から入射する光ビームを走査画角にて走査する光走査部と、光源及び光走査部を駆動させ、画像の描画を制御する描画制御部と、を備える。描画制御部は、走査画角を広画角とする広画角状態と、広画角状態に対して走査画角を狭画角に縮小する挟画角状態と、を切り替える。【選択図】図8
VIRTUAL IMAGE DISPLAY DEVICE AND DRAWING CONTROLLER
虚像表示装置及び描画制御装置
2021-03-01
Patent
Elektronische Ressource
Japanisch
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 / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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