公开(公告)号：US20160259167A1

公开(公告)日：2016-09-08

申请号：US15054620

申请日：2016-02-26

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01 ,  G02B5/30 ,  G02B5/02

CPC classification number: G02B27/0172 ,  G02B5/0278 ,  G02B5/1809 ,  G02B5/3083 ,  G02B27/017 ,  G02B27/286 ,  G02B2027/0118 ,  G02B2027/0138

Abstract: imagelight and outside light are viewed to overlap in a half mirror layer which is a semi-transmissive reflection unit from a state in which a polarization property of the outside light is canceled by a depolarization member disposed more outside than a light-guiding region of the imagelight.

Abstract translation: 从外部光的偏振特性被设置在外侧的去极化元件抵消的状态下，在作为半透射反射单元的半透明层中，图像光和外部光被视为与半透明反射单元重叠， imagelight。

公开(公告)号：US20160116744A1

公开(公告)日：2016-04-28

申请号：US14985992

申请日：2015-12-31

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01 ,  G02B17/00 ,  G02B17/08 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B6/0028 ,  G02B6/003 ,  G02B17/008 ,  G02B17/086 ,  G02B2027/011 ,  G02B2027/013

Abstract: An image relay optical system is provided with an optical coupling member before incidence of image light on a light guide member. Among a first light incident surface, a coupling member reflecting surface, and a first light emitting surface provided in the optical coupling member, the coupling member reflecting surface and the first light emitting surface are curved surfaces. Therefore, a large bright virtual image with reduced aberration can be displayed.

Abstract translation: 图像中继光学系统在光引导构件上的图像光入射之前设置有光耦合构件。 在第一光入射表面中，耦合构件反射表面和设置在光耦合构件中的第一发光表面，耦合构件反射表面和第一发光表面是弯曲表面。 因此，可以显示具有减小的像差的大的明亮虚像。

公开(公告)号：US20130222896A1

公开(公告)日：2013-08-29

申请号：US13773058

申请日：2013-02-21

Applicant: SEIKO EPSON CORPORATION

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

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B17/0848 ,  G02B17/086 ,  G02B27/0101 ,  G02B27/017 ,  G02B2027/0123

Abstract: An intermediate image is formed inside a prism by a projection lens and the like. Image light, totally reflected, in the order of a third surface, a first surface and a second surface, on two or more surfaces thereof, reaches an eye of an observer after passing through the first surface. Thus, it is possible to decrease the thickness of the prism and to reduce the size and weight of the entire optical system. Further, it is possible to realize a bright high-performance display with a wide viewing angle. With respect to external light, it is possible to pass the external light through the first surface and the third surface, for example, for observation. Further, by setting diopter at this time to about 0, it is possible to reduce defocusing or warp of the external light when the external light is observed in a see-through manner.

Abstract translation: 通过投影透镜等在棱镜内部形成中间图像。 在其两个或多个表面上以第三表面，第一表面和第二表面的顺序全反射的图像光在通过第一表面之后到达观察者的眼睛。 因此，可以减小棱镜的厚度并减小整个光学系统的尺寸和重量。 此外，可以实现具有宽视角的明亮的高性能显示。 对于外部光，可以使外部光穿过第一表面和第三表面，例如用于观察。 此外，通过将此时的屈光度设定为约0，当以观察方式观察外部光时，可以减少外部光的散焦或翘曲。

公开(公告)号：US20130088415A1

公开(公告)日：2013-04-11

申请号：US13633527

申请日：2012-10-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro TOTANI ,  Masayuki TAKAGI ,  Toshiaki MIYAO ,  Akira KOMATSU ,  Takashi TAKEDA ,  Takeshi FUJISHIRO

IPC: G09G5/00

CPC classification number: G02B27/0176 ,  G02B27/0172 ,  G02B2027/0178 ,  G02B2027/0181

Abstract: In a virtual image display device, direction adjustment of an image optical axis, i.e., angle adjustment of a direction of eyes of an observer can be performed by providing a cushion member or adjusting an amount of shift between an image display unit and a projection system, and thereby, strain on eyes of an observer in use may be reduced. Even when the virtual image display device is used over a long period, for example, stress on the observer may be suppressed.

Abstract translation: 在虚拟图像显示装置中，可以通过提供缓冲构件或调整图像显示单元和投影系统之间的偏移量来执行图像光轴的方向调整，即观察者的眼睛的方向的角度调整 ，从而可以减少使用中的观察者的眼睛的应变。 即使在虚拟图像显示装置长时间使用时，例如也可以抑制对观察者的压力。

公开(公告)号：US20240248309A1

公开(公告)日：2024-07-25

申请号：US18416233

申请日：2024-01-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B2027/0178

Abstract: A virtual image display device includes: a light modulation element including a liquid crystal pixel and a light-transmitting region, a light-blocking member arranged at the external side of the light modulation element, a light-guiding member arranged between the light-blocking member and the light modulation element , a first polarizing plate arranged between the light-guiding member and the light-transmitting region to polarized light in a first polarization direction, a second polarizing plate arranged at the face side of the light modulation element and including a polarizing film as a polarizing region provided corresponding to the liquid crystal pixel, the polarizing film being configured to restrict image light emitted from the liquid crystal pixel to polarized light in a second polarization direction, and a polarization separation lens element arranged at the face side of the second polarizing plate that functions with respect to polarized light of the image light.

公开(公告)号：US20230139134A1

公开(公告)日：2023-05-04

申请号：US17976113

申请日：2022-10-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA

IPC: G02B27/01

Abstract: Provided is a virtual image display apparatus including a display device configured to emit an imaging light; a first mirror configured to reflect the imaging light from the display device; a refractive reflective optical member including a mirror portion configured to reflect the imaging light reflected by the first mirror; and a second mirror configured to reflect the imaging light reflected by the mirror portion toward a position of an exit pupil, wherein a distance from the display device to the first mirror is shorter than a distance from the position of the exit pupil to the second mirror; and a first angle θ formed by the imaging light incident on the second mirror and the imaging light reflected by the second mirror is greater than 0° and 45° or less.

公开(公告)号：US20220276476A1

公开(公告)日：2022-09-01

申请号：US17680237

申请日：2022-02-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA ,  Masayuki TAKAGI ,  Kunihiko YANO

IPC: G02B17/08 ,  G02B13/18 ,  G02B27/01 ,  G09G3/00

Abstract: An optical unit and an image display device include a display element configured to emit imaging light, a first mirror having partial transparency and configured to reflect a portion of the imaging light emitted from the display element, and a second mirror configured to return the imaging light reflected by the first mirror to the first mirror to form an exit pupil. The imaging light is incident on the first mirror from the display element at a first incident angle, and the imaging light is incident on the first mirror at a second incident angle that is smaller than the first incident angle from the second mirror, and the first mirror includes an angle dependent separation film that shows different separation characteristics for the imaging light according to the difference between the first incident angle and the second incident angle.

公开(公告)号：US20220163805A1

公开(公告)日：2022-05-26

申请号：US17534410

申请日：2021-11-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA

IPC: G02B27/01 ,  B29D11/00

Abstract: Provided is a display module including a display element, and a light-guiding optical device that guides image light emitted from the display element to form an exit pupil, in which the light-guiding optical device is an off-axis optical system. The off-axis optical system includes a first optical surface, a second optical surface, a first light-shielding portion, the first light-shielding portion being formed at the first optical surface, and a second light-shielding portion, the second light-shielding portion being formed at the second optical surface, in which the first light-shielding portion exposes, through a first aperture, a part of the first optical surface, and the second light-shielding portion exposes, through a second aperture, a part of the second optical surface, the first aperture and the second aperture having mutually different shapes.

公开(公告)号：US20220137416A1

公开(公告)日：2022-05-05

申请号：US17513889

申请日：2021-10-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Daiki MATSUMOTO ,  Takashi TAKEDA ,  Toshiyuki NOGUCHI

IPC: G02B27/01 ,  G02B5/04

Abstract: A display device includes an image element, a prism mirror that receives image light emitted from the image element through a light incident surface, reflects the image light with an inner reflection surface, and emits the image light from a light emission surface, and a see-through mirror that reflects the image light emitted from the prism mirror toward a pupil position, wherein the prism mirror emits the image light incident from a front to be bent in a direction inclined with respect to the front, and a light emission side of an image source that includes the image element and the prism mirror is covered with a light transmission window that blocks dust.

公开(公告)号：US20220066217A1

公开(公告)日：2022-03-03

申请号：US17458937

申请日：2021-08-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TAKEDA

IPC: G02B27/01 ,  G02B27/09

Abstract: A virtual image display device includes an image generation device, and a concave transmissive mirror configured to reflect image light emitted from the image generation device. A light superimposer is provided on an external side of a partial reflective film provided in the concave transmissive mirror, the light superimposer being configured to superimpose additional light in a visible range on image light transmitted through the partial reflective film.