To prevent a problem, such as a reduction in luminance of a projected image, even when polarized image light emitted from an intermediate image forming member is projected through a plural film optical member.SOLUTION: In an image projection device comprising: an intermediate image forming member 15 on which an intermediate image G' is formed with light from a light source; and a plural film optical member 510 on which image light forming the intermediate image is incident, the image projection device projecting an image G by using the image light incident on the plural film optical member, the projected image and the intermediate image are shifted from each other in the image rotational position relationship in a rotation direction around an image center between the images, and the plural film optical member is arranged such that the polarization axis of the image light incident on the plural film optical member becomes parallel or perpendicular to an incident surface for the plural film optical member.SELECTED DRAWING: Figure 13
【課題】中間画像形成部材から射出される偏光画像光が複数膜光学部材を経て投写される場合であっても、投写画像の輝度低下などの不具合を抑制する。【解決手段】光源からの光によって中間画像G’が形成される中間画像形成部材15と、前記中間画像を形成した画像光が入射される複数膜光学部材510とを備え、前記複数膜光学部材に入射した画像光を用いて画像Gを投写する画像投写装置において、投写される画像と前記中間画像との間の画像中心軸回りの回転方向における画像回転位置関係が互いにずれるように構成され、前記複数膜光学部材は、該複数膜光学部材に入射する画像光の偏光軸が該複数膜光学部材についての入射面に対して平行又は垂直となるように配置されている。【選択図】図13
IMAGE PROJECTION DEVICE AND MOVABLE BODY
画像投写装置及び移動体
2019-09-26
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 / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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