A virtual image display device includes an intermediate image formation unit on which a real image based on an image display light is formed. The intermediate image formation unit includes a principal surface on which a first area, a second area, and a third area are arranged in a stated order in a predetermined direction, and a reflective part. The first area is provided with a transmission-type screen on which a first display light forms an image, and the third area is provided with a reflection-type screen on which a second display light forms an image. The first display light is transmitted through the transmission-type screen, reflected by the reflective part, transmitted through the second area, and output toward a projection mirror. The second display light is reflected by the reflection-type screen and output toward the projection mirror.
Virtual image display device, intermediate image formation unit, and image display light generation unit
2021-11-16
Patent
Electronic Resource
English
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 / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / 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 |
European Patent Office | 2021
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