公开(公告)号：US20220035165A1

公开(公告)日：2022-02-03

申请号：US17389373

申请日：2021-07-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Takeshi KOSHIHARA

IPC: G02B27/01 ,  G02B27/00

Abstract: An imaging light emitting device, and an optical unit configured to guide imaging light emitted from the imaging light emitting device are included, and the imaging light emitting device emits the imaging light at different densities according to a distortion generated in an optical system constituting the optical unit and an image position.

公开(公告)号：US20210302742A1

公开(公告)日：2021-09-30

申请号：US17218197

申请日：2021-03-31

Applicant: SEIKO EPSON CORPORATION

Inventor： Daiki MATSUMOTO ,  Masatoshi YONEKUBO ,  Takashi TAKEDA

IPC: G02B27/01

Abstract: A virtual image display device includes: an image light generating device; a projection optical system configured to project image light emitted from the image light generating device; a folding mirror configured to reflect, in an intersecting direction, the image light from the projection optical system; a semi-transmissive mirror configured to reflect a portion of the image light from the folding mirror; and a concave surface mirror configured to reflect, toward the semi-transmissive mirror, the image light reflected at the semi-transmissive mirror to form an exit pupil, in which an optical axis of the image light extending from the image light generating device to the folding mirror is disposed between a first virtual extension plane obtained by imaginarily extending the semi-transmissive mirror and a second virtual extension plane obtained by imaginarily extending the concave surface mirror.

公开(公告)号：US20210132388A1

公开(公告)日：2021-05-06

申请号：US17082003

申请日：2020-10-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Tokito YAMAGUCHI ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Akira KOMATSU ,  Takashi TAKEDA

IPC: G02B27/01 ,  G02B3/00 ,  G02B27/14

Abstract: A head-mounted display includes an image display device including a panel unit serving as a display element configured to display an image, a colored optical member disposed on a light path of imaging light emitted from the panel unit and having a yellowness of a predetermined value or greater, and a coloring correction optical member configured to correct a degree of coloring of the imaging light of the entire light path in accordance with the yellowness of the colored optical member.

公开(公告)号：US20210063752A1

公开(公告)日：2021-03-04

申请号：US17004891

申请日：2020-08-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Tokito YAMAGUCHI ,  Mitsutaka IDE

IPC: G02B27/01

Abstract: A virtual image display apparatus includes a display element, an optical element configured to pass therethrough image light emitted from the display element, a reflecting mirror configured to reflect the image light emitted from the optical element, a see-through hologram mirror of a see-through type configured to reflect the image light, emitted from the reflecting mirror, to a pupil position, and a linear diffraction element of a transmissive type arranged on an optical path from the optical element to the hologram mirror. The optical element, the reflecting mirror, and the see-through hologram mirror are arranged to form an off-axis system, and the linear diffraction element compensates wavelength dispersion caused by the see-through hologram mirror at an off-axis surface of the off-axis system.

公开(公告)号：US20200285064A1

公开(公告)日：2020-09-10

申请号：US16811050

申请日：2020-03-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Akio FUKASE ,  Hiroyuki TATSUGI

IPC: G02B27/14 ,  G02B27/01 ,  G02B27/10

Abstract: A display module of the present disclosure includes a display module main body and a housing. The display module main body includes a first, a second display element, and a prism. The housing includes a first, and a second frame. The first frame holds the first display element in a state in which the prism is positioned between a first and a second plate portion, and in which a third plate portion is in contact with the first display element and faces a first surface, and the second frame holds the second display element in a state in which the prism is positioned between a fourth and a fifth plate portion, and in which a sixth plate portion is in contact with the second display element and faces a second surface.

公开(公告)号：US20200213580A1

公开(公告)日：2020-07-02

申请号：US16728315

申请日：2019-12-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Toshiyuki KASAI ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Tokito YAMAGUCHI

IPC: H04N13/344 ,  G02B27/01

Abstract: In a left and right pair of a first display device and a second display device that perform repositionable display, mutually different display contents can be visually recognized as a first video image and a second video image. Further, a display control portion controls the display content in accordance with at least one of the first video image and the second video image.

公开(公告)号：US20200073127A1

公开(公告)日：2020-03-05

申请号：US16555155

申请日：2019-08-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Tokito YAMAGUCHI

IPC: G02B27/01 ,  G06F1/16 ,  G06F3/01 ,  G02B27/09 ,  G02B27/18

Abstract: A virtual image display apparatus includes a display device serving as an image forming unit, an image optical system including a first mirror member serving as an outer mirror member and receiving imaging light from the display device, and a partially reflecting type mirror portion reflecting imaging light emitted from the image optical system toward a position of an exit pupil. The first mirror member serving as the outer mirror member and the partially reflecting type mirror portion are integrated.

公开(公告)号：US20200018967A1

公开(公告)日：2020-01-16

申请号：US16506326

申请日：2019-07-09

Applicant: SEIKO EPSON CORPORATION

Inventor： Akira KOMATSU ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Takashi TAKEDA ,  Tokito YAMAGUCHI

IPC: G02B27/01 ,  G02B5/30 ,  G02B5/08

Abstract: A head-mounted display includes a display device, a projection optical member, and a prism member. The prism member includes a first prism receiving image light from the projection optical member, and a second prism disposed at a position further toward an exit pupil than the first prism. The first prism includes an entrance surface, a first reflection surface, and a first joining surface, the second prism includes a second joining surface joined to the first joining surface via a semi-transmissive reflection surface, a second reflection surface, and a light collecting reflection surface, and the semi-transmissive reflection surface is configured to reflect the image light, reflected by the light collecting reflection surface and then totally reflected by the second reflection surface, to pass through the second reflection surface.

公开(公告)号：US20200018966A1

公开(公告)日：2020-01-16

申请号：US16505852

申请日：2019-07-09

Applicant: SEIKO EPSON CORPORATION

Inventor： Akira KOMATSU ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Takashi TAKEDA ,  Tokito YAMAGUCHI

IPC: G02B27/01

Abstract: A head-mounted display includes a display device, a projection optical member, a prism member, and a light condensing and reflecting surface. The prism member includes a first prism, and a second prism that is disposed further toward an exit pupil side than the first prism. The first prism includes an incident surface, a reflection surface that totally reflects the image light, and a first joining surface that is joined with the second prism via a semi-transmissive reflection surface. The second prism includes a second joining surface that is joined with the first joining surface, and an opposing flat surface that is disposed parallel to the reflection surface to face the reflection surface and configured to transmit the image light, reflected by the semi-transmissive reflection surface and then by the light condensing and reflecting surface and thereafter passing through the semi-transmissive reflection surface.

公开(公告)号：US20190293940A1

公开(公告)日：2019-09-26

申请号：US16357669

申请日：2019-03-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Mitsutaka IDE ,  Akira KOMATSU ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Tokito YAMAGUCHI

IPC: G02B27/01

Abstract: Image formation is performed by using a synthesis optical system, and in a first dichroic film and a second dichroic film that are the synthesis surfaces in the synthesis optical system, a direction in which the cross axis that is the intersecting axis extends corresponds to a direction of alignment of eyes of an observer.