Optical system and image display device

An optical system (3) is provided with: a projection optical system (5) that projects image light (L1) that forms an image output from a display element (2); and a light guide member (4) that guides the image light (L1) projected by the projection optical system (5) as a virtual image to a field of...

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Bibliographic Details
Main Authors MINAMI KAZUHIRO, KUZUHARA SATOSHI, OKAYAMA HIROAKI
Format Patent
LanguageChinese
English
Published 17.10.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An optical system (3) is provided with: a projection optical system (5) that projects image light (L1) that forms an image output from a display element (2); and a light guide member (4) that guides the image light (L1) projected by the projection optical system (5) as a virtual image to a field of view (7) of a user. The light guide member (4) is provided with: a coupling region (41) that guides the image light (L1) into the light guide member (4) and causes the image light (L1) to face in the direction of a first axis (X-axis) within the light guide member (4); and a propagation region (42) that propagates the image light (L1) from the coupling region (41) in the direction of the first axis, and that causes a part of the image light (L1) to face a predetermined direction including a directional component of a second axis (Y axis) orthogonal to the first axis. On the optical path of the image light (L1) projected by the projection optical system (5), the distance (D1) from the projection optical system (5) t
Bibliography:Application Number: CN202180095015