Abstract: An optical device includes: a light guide plate receiving, for each of N types of wavelength bands, a plurality of parallel light beams with different incident angles each corresponding to view angles, and guiding the received parallel light beams; a first and a second volume hologram gratings of reflection type having a diffraction configuration which includes N types of interference fringes each corresponding to the N types of wavelength bands, and diffracting/reflecting the parallel light beams. The optical device satisfies for each wavelength band, a relationship of ‘P>L’, where ‘L’ represents a central diffraction wavelength in the first and second volume hologram gratings, defined for a parallel light beam corresponding to a central view angle, and ‘P’ represents a peak wavelength of the parallel light beams.

Abstract: Provided is an image display device used by being mounted to a head or a face of a user, including a first display unit that displays an internal image seen from a side of the user, a second display unit that displays an external image seen from outside the image display device, and a control unit that controls display of the internal image and the external image.

Abstract: According to the present disclosure, there is provided a control device including a detection unit configured to detect, as a manipulation region, at least a part of a substantial object present at a position at which a user is estimated to be able to perform a manipulation, a function setting unit configured to perform setting in a manner that a predetermined function matches the manipulation region detected by the detection unit, and a control unit configured to perform the function matched with the manipulation region based on a positional relation between the manipulation region and a manipulator.

Abstract: Provided is an image display device used by being mounted to a head or a face of a user, including a first display unit that displays an internal image seen from a side of the user, a second display unit that displays an external image seen from outside the image display device, and a control unit that controls display of the internal image and the external image.

Abstract: According to the present disclosure, there is provided a control device including a detection unit configured to detect, as a manipulation region, at least a part of a substantial object present at a position at which a user is estimated to be able to perform a manipulation, a function setting unit configured to perform setting in a manner that a predetermined function matches the manipulation region detected by the detection unit, and a control unit configured to perform the function matched with the manipulation region based on a positional relation between the manipulation region and a manipulator.

Abstract: A display apparatus includes: a glass-type frame mounted to a head of an observer; and two image displaying devices for the left and right eyes that are attached to the frame. Each of the image displaying devices includes an image forming device, an optical system making light from the image forming device to be parallel light, and an optical device to which the light from the optical system is incident, and in which the light is guided so as to be output, at least one of the image displaying devices further includes a movement device relatively moving optical axes of the image forming device and the optical system in a horizontal direction, and a convergence angle is adjusted by relatively moving the optical axes of the image forming device and the optical system in the horizontal direction using the movement device depending on an observation position of an observer.

Abstract: A display apparatus assembly including: a display apparatus; and a speed measuring device that measures a movement speed of the display apparatus, wherein the display apparatus includes a glass-type frame that is mounted on a head of an observer and two image displaying devices for left and right eyes that are mounted in the frame, each of the image displaying devices includes an image forming device, an optical system that forms light output from the image forming device to be parallel light, and an optical device to which light output from the optical system is incident and in which the light is guided so as to be output, and a convergence angle is changed based on the movement speed of the display apparatus that is measured by the speed measuring device.

Abstract: There is provided an image display device used by being mounted to a head or a face of a user, the image display device including a display device configured to display an image, a waveguide configured to guide the image to each of a location seen from a side of the user and a location seen from an outside of the image display device, and a control unit configured to control display of an internal image and an external image, the internal image being seen from the side of the user, the external image being seen from the outside.

Abstract: A display that includes a frame to be worn on a head of an observer, two image creation devices, two light guides to guide light beams output from the image creation devices and to output the light beams toward pupils of the observer, and an optical plate attached to a center part of the frame and attached to a periphery part of the light guides via an adhesive. The center part of the frame is thicker than an outside part of the frame.

Abstract: An image display apparatus 100 includes: (A) an image generating device 111 including a light source 160 and a transmissive spatial light modulating device 150 formed with pixels 152 arranged in a two-dimensional matrix; and (B) a light guiding unit 120 that guides light from the image generating device 111, and emits the light toward an eye 21 of a viewer 20, wherein the transmissive spatial light modulating device 150 includes, on a light emitting side thereof, a microlens array 170 including a microlens corresponding to each pixel, and when an incident solid angle of light entering a pixel from the light source 160 is assumed to be ?in, and an emitting solid angle of light that passes through the pixel and is emitted from the microlens corresponding to the pixel is assumed to be ?out, ?out>?in is satisfied.

Abstract: A head-mounted display device including an image display apparatus configured to display a captured image of a portion of an environment viewable through the head-mounted display device; and a dimmer configured to, while the captured image is displayed, allow a portion of ambient light from the environment to pass through the dimmer. Also, a method of displaying information on a head-mounted display device. The method may include displaying a captured image of a portion of an environment viewable through the display device; and dimming ambient light received through the head-mounted display device from the environment while displaying the captured image.

Abstract: A display apparatus assembly including: a display apparatus; and a speed measuring device that measures a movement speed of the display apparatus, wherein the display apparatus includes a glass-type frame that is mounted on a head of an observer and two image displaying devices for left and right eyes that are mounted in the frame, each of the image displaying devices includes an image forming device, an optical system that forms light output from the image forming device to be parallel light, and an optical device to which light output from the optical system is incident and in which the light is guided so as to be output, and a convergence angle is changed based on the movement speed of the display apparatus that is measured by the speed measuring device.

Abstract: A head-mounted display device including an image display apparatus configured to display a captured image of a portion of an environment viewable through the head-mounted display device; and a dimmer configured to, while the captured image is displayed, allow a portion of ambient light from the environment to pass through the dimmer. Also, a method of displaying information on a head-mounted display device. The method may include displaying a captured image of a portion of an environment viewable through the display device; and dimming ambient light received through the head-mounted display device from the environment while displaying the captured image.

Abstract: An image display device with an image display element; an optical system; an optical waveguide having a light incident port at a first portion of the optical waveguide and a light outgoing port at a second portion of the optical waveguide, the optical waveguide configured to (a) receive light from the image display element via the optical system and (b) output the light via the light outgoing port; a light shielding element; a first element that deflects light received through the first portion of the optical waveguide; and a second element that deflects light conveyed in the optical waveguide to output the light through the second portion of the optical waveguide, wherein, the first portion and the second portion are at different positions along the optical waveguide, and the first element is between the light incident port of the optical waveguide and the light shielding element.

Abstract: An image display apparatus includes: an image forming device; an optical system converting light emitted from the image forming device into parallel light; and an optical device to which the light beams converted into the parallel light by the optical system enter, in which the light beams are guided, and from which the light beams are emitted, wherein a central light beam emitted from the center of the image forming device, passing through the nodal point of the optical system and entering the optical device at an optical device center point intersects an XY plane defined by an X axis that passes through the optical device center point, and is parallel to the axis direction of the optical device and a Y axis that passes through the optical device center point, and coincides with the normal axis of the optical device at angles other than 0 degree.

Abstract: A display apparatus assembly includes: a display apparatus; and a speed measuring device that measures a movement speed of the display apparatus, wherein the display apparatus includes a glass-type frame that is mounted on a head of an observer and two image displaying devices for left and right eyes that are mounted in the frame, each of the image displaying devices includes an image forming device, an optical system that forms light output from the image forming device to be parallel light, and an optical device to which light output from the optical system is incident and in which the light is guided so as to be output, and a convergence angle is changed based on the movement speed of the display apparatus that is measured by the speed measuring device.

Abstract: An image display apparatus includes an image forming device, a collimating optical system, and an optical device. The optical device includes a light guide plate, a first deflecting member that deflects light incident on the light guide plate, and a second deflecting member that deflects the light, which propagates in the light guide plate by total reflection, a plurality of times. The first and second deflecting members are provided in the light guide plate. Light having one wavelength emitted from at least one pixel satisfies the following condition: 2t·sin ??2?WY?2t·sin ?+2 where an axial direction of the light guide plate is the Y-direction, WY prepresents the width in the Y-direction of the light incident on the light guide plate, t represents the thickness of the light guide plate, and 0 represents the total reflection angle.

Abstract: An image display apparatus includes: an image forming device; an optical system converting light emitted from the image forming device into parallel light; and an optical device to which the light beams converted into the parallel light by the optical system enter, in which the light beams are guided, and from which the light beams are emitted, wherein a central light beam emitted from the center of the image forming device, passing through the nodal point of the optical system and entering the optical device at an optical device center point intersects an XY plane defined by an X axis that passes through the optical device center point, and is parallel to the axis direction of the optical device and a Y axis that passes through the optical device center point, and coincides with the normal axis of the optical device at angles other than 0 degree.

Abstract: An optical device includes: a light guide plate receiving, for each of N types of wavelength bands, a plurality of parallel light beams with different incident angles each corresponding to view angles, and guiding the received parallel light beams; a first and a second volume hologram gratings of reflection type having a diffraction configuration which includes N types of interference fringes each corresponding to the N types of wavelength bands, and diffracting/reflecting the parallel light beams. The optical device satisfies for each wavelength band, a relationship of ‘P>L’, where ‘L’ represents a central diffraction wavelength in the first and second volume hologram gratings, defined for a parallel light beam corresponding to a central view angle, and ‘P’ represents a peak wavelength of the parallel light beams.

Abstract: An image display apparatus includes an image forming device, a collimating optical system, and an optical device. The optical device includes a light guide plate, a first deflecting member that deflects light incident on the light guide plate, and a second deflecting member that deflects the light, which propagates in the light guide plate by total reflection, a plurality of times. The first and second deflecting members are provided in the light guide plate. Light having one wavelength emitted from at least one pixel satisfies the following condition: 2t·sin ??2?WY?2t·sin ?+2 where an axial direction of the light guide plate is the Y-direction, WY prepresents the width in the Y-direction of the light incident on the light guide plate, t represents the thickness of the light guide plate, and ? represents the total reflection angle.