公开(公告)号：US20230296890A1

公开(公告)日：2023-09-21

申请号：US18103762

申请日：2023-01-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenji NAGATOMI ,  Norihiro IMAMURA ,  Hirofumi HOSHIDA

IPC: G02B27/01 ,  G02B7/182 ,  B60R1/26

CPC classification number: G02B27/0101 ,  G02B7/182 ,  B60R1/26 ,  B60R2300/205 ,  B60R2300/10 ,  B32B15/016

Abstract: An optical device includes: a display; an optical element that includes a first face and a second face facing the first face, the optical element receiving light from the display through the first face, reflecting the received light on the second face, and emitting the reflected light through the first face; a housing that accommodates the display and the optical element; and a fixing structure that fixes the optical element by holding the optical element from different sides of the optical element.

公开(公告)号：US20220004013A1

公开(公告)日：2022-01-06

申请号：US17364094

申请日：2021-06-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenji NAGATOMI ,  Norihiro IMAMURA

IPC: G02B27/14 ,  G02F1/1333 ,  G02B5/30 ,  G02B5/20

Abstract: A display system includes: a display element that includes a display surface through which light showing an image is emitted; a concave mirror that reflects the light emitted through the display surface of the display element; and an optical element that includes a wave plate and a transmissive polarizing plate that is a polarizing element, the optical element facing the concave mirror. The concave mirror and the optical element are each provided separately from the display element. The optical element (i) transmits reflected light resulting from the light emitted through the display surface of the display element being reflected by the concave mirror, and (ii) reflects light from outside off a surface of the optical element, the surface facing the concave mirror, the light from the outside entering the optical element from a side through which the reflected light exits, and being reflected by the concave mirror.

公开(公告)号：US20210197725A1

公开(公告)日：2021-07-01

申请号：US17125578

申请日：2020-12-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Norihiro IMAMURA ,  Kenji NAGATOMI ,  Michihiro YAMAGATA ,  Shoji SO ,  Keiichi MATSUZAKI

IPC: B60R1/08 ,  B60R1/12

Abstract: A tangent line, described next, is, in top view, parallel to a straight line extending in a width direction of the display surface in a range in which the attitude can be changed. The tangent line is present on a plane orthogonal to the up-down direction of the automobile, and contacts a center of the final reflective surface. In top view, of an angle formed by a straight line connecting a center of the final reflective surface with a center of the display surface and the tangent line of the final reflective surface, a supplementary angle which is supplementary to an angle that is on a rear side of the automobile and that is on a side where the observer is present is an acute angle of less than 90 degrees.

公开(公告)号：US20210101531A1

公开(公告)日：2021-04-08

申请号：US17031270

申请日：2020-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Norihiro IMAMURA ,  Michihiro YAMAGATA ,  Kenji NAGATOMI

IPC: B60R1/00 ,  G02B5/09 ,  G02B17/00 ,  G02B5/30 ,  H04N7/18 ,  G06T5/00 ,  H04N5/262

Abstract: A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.