Seiko Epson Corporation

Sieko Epson Corporation

Masayuki Takagi

Takashi Takeda

Toshiaki Miyao

Akira Komatsu

Takahiro Totani

Tokito Yamaguchi

Yoshitaka Hama

Taisuke Yamauchi

Takuya Ikeda

Kazuya Kamakura

Mitsutaka Ide

Noriaki Hiraide

Kunihiko Yano

Takeshi Fujishiro

Nobuhiko Yokoo

Takeshi Koshihara

Toshiyuki Kasai

Masahide Takano

Yoshihiro Tatara

Fusashi Kimura

Hideki Kato

Yutaka Fujimaki

Hayato Matsuki

Kenro Yajima

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.

Optical unit and image display device

An optical module according to the present disclosure includes: a first display panel that emits a first image light, a first virtual image optical system that forms a first exit pupil of the first image light, and a control unit corrects a video image signal to a first correction video signal based on distortion generated in the first optical system, an aspect ratio of the video image signal being smaller than an aspect ratio of the first display panel, wherein the control unit causes the first display panel to emit the first image light from the first display panel based on the first correction video image signal.

Optical module and virtual image display device

A display module includes a display element, a light-guiding optical device, and a control unit configured to perform distortion correction including correction of a chromatic aberration of magnification. The light-guiding optical device is constituted of an optical system having non-axisymmetry in an up-and-down direction with respect to the imaging light entering the light-guiding optical device, and includes a first optical member having positive refractivity, a second optical member having positive refractivity, and a first reflection surface configured to reflect the imaging light toward a pupil position. The refractivity of the first optical member is greater than the refractivity of the second optical member. An abbe number of a constituent material of the first optical member is greater than an abbe number of a constituent material of the second optical member. The control unit performs distortion correction by a different distortion correction amount for each color light.

Display module and display device

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.

Light-guiding device, virtual image display apparatus, and method for manufacturing light-guiding device

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.

Head-mounted display

An image display device is a self-luminous type device including a light emitting portion, and a casing portion of a display device unit has a heat dissipating structure portion through which a part of the image display device is exposed for heat dissipation. In manufacturing the display device unit, when performing simple and reliable assembly while securing a high heat dissipation characteristic, for example, by using characteristics of a silicon substrate, high accurate positioning is performed in a display device positioning portion.

Virtual image display apparatus and video device unit manufacturing method

A display element, and a light-guiding member including a plurality of reflection surfaces and configured to guide image light from the display element by reflecting the image light at an inner surface, and cause the image light and external light to be visually recognized in an overlapping manner are provided, wherein at a boundary between a first reflection surface and a second reflection surface adjacent to each other included in the plurality of reflection surfaces of the light-guiding member with at least one of the first reflection surface and the second reflection surface including a curved surface, an end of the first reflection surface and an end of the second reflection surface match when projected from a specific direction.

Virtual image display device and light-guiding member

A light-guiding device is configured to accept image light through a light incidence part, guide the image light through reflection, and emit, to outside through a light emission part, the image light that is guided, the light-guiding device includes a protective member having a sheet shape and configured to cover a body member in a region corresponding to an optical surface of a surface of the light-guiding device, and an adhesive layer is formed between the body member and the protective member.

Light-guiding device, display device, and method of manufacturing light-guiding device

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 respective pair of light-guiding portions, and a pair of light-emitting portion that causes image light guided by the respective pair of light-guiding portions to exit outside, in which a pair of optical members including the pair of light-guiding portions are coupled by a central member having light transmissivity, and in which the central member includes a light-guide blocking structure that suppresses light from being incident from one end to another end of the central member by absorbing the light.

Light-guiding device and virtual image display apparatus

A head-mounted display includes a display device configured to display an image, a diopter adjustment device configured to adjust a diopter, and a correction processing circuit serving as an image correction device configured to correct a display image in accordance with a degree of diopter adjustment. In the adjustments made on a left side and a right side, respectively, after diopter adjustment, the display image is corrected in accordance with the degree of diopter adjustment.

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.

Virtual image display apparatus

A virtual image display apparatus includes a display element, a projection lens configured to converge image light emitted from the display element, a prism configured to cause the image light by an internal reflecting surface thereof and moreover emit the image light from an emission surface thereof while refracting the image light, and a see-through mirror configured to reflect the image light emitted from the prism toward a pupil position. The projection lens, the prism, and the see-through mirror are arranged to form an off-axis system. AT an off-axis surface of the off-axis system, an intermediate pupil is arranged between the projection lens and the internal reflecting surface, with the intermediate pupil being arranged to be farther to the incident surface side of the prism than to the projection lens and the internal reflecting surface, and an intermediate image is formed between the prism and the see-through mirror.

Virtual image display apparatus and light-guiding device

A panel unit configured to, for imaging light, use different opening ratios depending on a wavelength band for displaying an image, a yellowing optical member that is disposed on an optical path of imaging light emitted from the panel unit, and turns yellow with age, a yellowing degree estimation unit configured to estimate, by prediction, a yellowing degree of the yellowing optical member with age, and a luminance adjustment unit configured to, depending on yellowing of the yellowing optical member, based on data of the yellowing degree estimation unit, adjust luminance of an image in the panel unit, are provided.

A virtual image display apparatus includes a display device (image forming unit), a lens configured to refract imaging light from the display device, a first mirror member configured to reflect imaging light that passed through the lens, a second mirror member being a refractive reflective optical member configured to reflect the imaging light reflected by the first mirror member, and a third mirror member of a transmissive type configured to reflect the imaging light reflected by the second mirror member toward a position of an exit pupil. The refractive reflective optical member includes, across a refractive member, a refractive surface and a mirror surface. The lens and the refractive reflective optical member are integrated as a composite member.

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Matsumoto, Japan

Masayuki Takagi