公开(公告)号：US20200225484A1

公开(公告)日：2020-07-16

申请号：US16743082

申请日：2020-01-15

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01 ,  H04N9/31

Abstract: Provided are an imaging element configured to display an image, a projection optical system configured to project an image from the imaging element, and a two-stage structural diaphragm including a first diaphragm forming a first aperture portion in the projection optical system, and a second diaphragm forming a second aperture portion in the projection optical system, in which inclinations of a principal ray, relative to an image plane of an imaging element, of imaging light emitted from a peripheral portion of the image plane differ between in a first direction and in a second direction perpendicular to the first direction among in-plane directions of the image plane, in which the first diaphragm and the second diaphragm in the two-stage structural diaphragm are provided at different positions corresponding to differences between the inclinations of the principal ray in the first direction and in the second direction.

公开(公告)号：US20200174257A1

公开(公告)日：2020-06-04

申请号：US16699174

申请日：2019-11-29

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01 ,  F21V8/00

Abstract: A light-guiding device includes a pair of light-guiding portions, a pair of light-incident portions that causes image light to be incident on the pair of light-guiding portions respectively, and a pair of light-emitting portions that emit image light, guided by the pair of light-guiding portions, to outside respectively, in which a pair of optical members including the pair of light-guiding portions are coupled by a central member having light transmissivity, and separate overcoat layers are provided at the optical member on one side and at the optical member on another side with respect to an approximate center of the central member.

公开(公告)号：US20200049999A1

公开(公告)日：2020-02-13

申请号：US16660891

申请日：2019-10-23

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01 ,  F21V8/00 ,  G02B1/11 ,  G02B27/00

Abstract: A virtual image display device includes a display light guiding unit, and an image forming unit that emits image light to the display light guiding unit, the display light guiding unit includes a first light guiding unit that guides image light corresponding to a first angle of view, and a second light guiding unit that guides image light corresponding to a second angle of view, among angles of view of image light emitted from the image forming unit, and the first light guiding unit and the second light guiding unit respectively include incident side diffraction elements that take the image light beams into the inside, and emission side diffraction elements that emit the image light beams to the outside.

公开(公告)号：US20190310543A1

公开(公告)日：2019-10-10

申请号：US16375934

申请日：2019-04-05

Applicant: SEIKO EPSON CORPORATION

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

IPC: G03B21/20 ,  G06F3/01 ,  G06K9/00 ,  G02B5/02

Abstract: Provided is a virtual image display apparatus including a laser light source, a scanner configured to scan light from the laser light source and render an intermediate image, a diffusion element arranged at a position of the intermediate image formed by the scanner, and an exit pupil forming unit configured to cause light that has passed through the diffusion element to be incident on a position of an exit pupil. The diffusion element separates the light from the scanner into first emission light used as a reference, and second emission light having a separation angle greater than a capturing angle corresponding to an inclination of light toward a predetermined pupil radius relative to the first emission light at an emission position of the light from the diffusion element, and then emits the first emission light and the second emission light.

公开(公告)号：US20190196199A1

公开(公告)日：2019-06-27

申请号：US16229197

申请日：2018-12-21

Applicant: SEIKO EPSON CORPORATION

Inventor： Hayato MATSUKI ,  Shohei YOSHIDA ,  Takashi TAKEDA

IPC: G02B27/01 ,  F21V8/00

Abstract: A light-guiding device according to an aspect of the invention includes an incident section configured to make light incident, a light guide configured to guide the light incident from the incident section, a bonding layer configured to bond the incident section and the light guide, and a reflection member provided on a side surface of the bonding layer.

公开(公告)号：US20190113754A1

公开(公告)日：2019-04-18

申请号：US16162698

申请日：2018-10-17

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01

Abstract: An eyepiece optical system is configured to emit image light that is emitted from a plurality of display elements and corresponds to a plurality of areas being divided, to a position corresponding to an eye of an observer, wherein a first optical member of a complex type disposed at a position closest to an emitting side corresponding to at least two areas of the plurality of areas has a first optical surface on the emitting side, and the first optical surface is expressed by one curvature.

公开(公告)号：US20190079234A1

公开(公告)日：2019-03-14

申请号：US16130641

申请日：2018-09-13

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B5/30 ,  G02B27/01

Abstract: A half mirror 21 provided in an optical path bends the optical path, and a semi-transmissive polarizing plate 23 increases the transmittance of image light GL in a direction along alignment of the eyes of an observer while the virtual image display device has a wide angle of view and is downsized, thus reducing luminance unevenness between the central region and the peripheral region in the image in the direction and allowing the observer to view a high quality image.

公开(公告)号：US20180288359A1

公开(公告)日：2018-10-04

申请号：US15924900

申请日：2018-03-19

Applicant: SEIKO EPSON CORPORATION

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

IPC: H04N5/74 ,  G06F3/01 ,  G02B27/09

CPC classification number: G06F3/013 ,  G02B13/14 ,  G02B27/0172 ,  G02B27/0955 ,  G02B2027/0138 ,  G02B2027/0159 ,  G02B2027/0185 ,  H04N5/74 ,  H04N13/332 ,  H04N13/344

Abstract: An image display device includes: an image display section that displays an image for a user and allows the user to visually recognize external light; a line-of-sight direction and distance detecting section that detects a line-of-sight direction of the user and a distance to an object located in the line-of-sight direction; and a display control section that controls display operation of the image display section. The image display section includes a focal point and convergence changing section that changes a convergence and a focal point of a display image to be projected. The display control section controls the focal point and convergence changing section based on the line-of-sight direction and the distance to the object detected by the line-of-sight direction and distance detecting section.

公开(公告)号：US20180249150A1

公开(公告)日：2018-08-30

申请号：US15899399

申请日：2018-02-20

Applicant: SEIKO EPSON CORPORATION

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

IPC: H04N13/332 ,  G02B27/01 ,  G02B27/09 ,  H04N13/383

CPC classification number: H04N13/332 ,  G02B27/0103 ,  G02B27/0172 ,  G02B27/0955 ,  G02B2027/0105 ,  G02B2027/0147 ,  G02B2027/0178 ,  G02B2027/0187 ,  H04N13/344 ,  H04N13/383 ,  H04N2213/001

Abstract: In a head mounted display, an image is displayed with central resolution higher than peripheral resolution or the peripheral resolution is not necessarily high resolution, and a controller changes the display aspect of the image formed by an image formation apparatus in accordance with a change in the sightline detected with a sightline sensor.

公开(公告)号：US20180024368A1

公开(公告)日：2018-01-25

申请号：US15428598

申请日：2017-02-09

Applicant: SEIKO EPSON CORPORATION

Inventor： Masayuki TAKAGI ,  Toshiaki MIYAO ,  Takashi TAKEDA ,  Akira KOMATSU ,  Takuya IKEDA

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0176 ,  G02B6/0001 ,  G02B7/003 ,  G02B7/025 ,  G02B27/0081 ,  G02B2027/015 ,  G02B2027/0169 ,  G02B2027/0178

Abstract: A virtual image display apparatus includes a case member that stores a image element and is provided with a first end connected to other members, an optical component holding member with which an optical component guiding image light from the image element is assembled and that is provided with a second end connected to the first end, three or more protruding portions that are provided at one of the first end and the second end, have protrusion shapes, and extend toward the other end, three or more grooves that are provided at the other end, have depression shapes corresponding to the three or more protruding portions, and extend, and adhesive portions that fix the three or more protruding portions to the three or more grooves in a state in which the case member is aligned with the optical component holding member.