A technology concerning a pair of spectacle lenses for binocular vision. In each of the pair of spectacle lenses for binocular vision, when an inner horizontal direction of each of the spectacle lenses is a direction toward the nose of a user who wears the spectacle lenses, and an outer horizontal direction of the spectacle lenses is a direction toward an ear of the user, a portion for viewing an object at finite distance is provided in each of the pair of spectacle lenses for binocular vision and a shape of a base in prism is formed in the position such that a line of sight of a user viewing an object through the portion is directed to a direction that is different from a direction from the object.

A portable virtual reality device, which is provided with a board having a length to correspond the focal distances of the left and right lens; a supporting board that it deployed and foldable based on the board; left and right lens plates that are deployed and folded left and rightward on a rear surface of the board based on the board. The smart phone is mounted simply to correspond to the focal distances of the left and right lens when it is used, and when it is carried, the left and right lens plates and the supporting board are fold to form a thin film to be carried conveniently.

The present invention relates to a head-up display apparatus that projects an image of a displaying device forward. The displaying device includes a plurality of display surfaces. The direction of each of the display surfaces differs from the directions of the other display surfaces. At least one display surface is a reference display surface that projects an image in a vertical direction. Another surface is a stereoscopic inclination display surface that projects an image inclined relative to the image of the reference display surface.

Embodiments of the invention provide a camera array imaging architecture that computes depth maps for objects within a scene captured by the cameras, and use a near-field sub-array of cameras to compute depth to near-field objects and a far-field sub-array of cameras to compute depth to far-field objects. In particular, a baseline distance between cameras in the near-field subarray is less than a baseline distance between cameras in the far-field sub-array in order to increase the accuracy of the depth map. Some embodiments provide an illumination near-IR light source for use in computing depth maps.

A head-up display includes a display panel, a reflective optical element, a controller, and an obtainer. The display panel displays a first image. The reflective optical element reflects image light from the first image displayed by the display panel. The controller controls a position at which the first image is displayed on the display panel. The obtainer obtains, as positional information, a position of an eye of a user. The controller changes the position at which the first image is displayed on the display panel in accordance with the positional information.

A head-up display system includes a first projection module that projects a first image to display the first image in a forward direction not directly facing a user, a second projection module that projects a second image to display the second image in a forward direction directly facing the user, and a reflective optical element that reflects at least a part of the first image and at least a part of the second image.

A display device includes a plurality of pixels arranged across a display area of a display device, and a black matrix configured to block a portion of light outputted by each pixel of the plurality of pixels. The black matrix is configured to allow light from the second pixel having a first output intensity distribution having a peak intensity corresponding to a first direction to pass through, and to allow light from the first pixel having a second output intensity distribution having a peak intensity corresponding to a second direction to pass through.

A system for extending the effective aperture of an optical output in a direction parallel to the optical axis of the optical output, the system including a beam splitter configured for receiving an output beam of the optical output along the optical axis of the optical output, the beam splitter configured for splitting the output beam into two light beams; a central mirror for receiving and directing a first of the two light beams from the beam splitter; and a pair of motorized mirrors each motorized mirror including a mobility mechanism and a mirror functionally connected to the mobility mechanism, each of the motorized mirrors is configured to be movable in a direction orthogonal to the optical axis, wherein the optical output is extended to the two light beams separated by a pupil distance adjustable by controlling at least a mobility mechanism of one of the pair of motorized mirrors.

Provided is a light guide plate for an image display device which uses lead-free glass, has excellent color reproducibility and a light weight, and may obtain a wide viewing angle. A light guide plate for an image display device, which guides image light inputted from an image display element and outputs the image light toward a user's pupil, is configured to be made of lead-free glass having a refractive index of 1.8 or more with respect to a wavelength of the image light, and to have internal transmittance of 0.6 or more with respect to a wavelength of 400 nm when a plate thickness is 10 mm.

There is provided a head mounted display including: an optical system comprising: right-eye and left-eye optical systems that guide a real image light and right-eye and left-eye virtual image lights; and an optical element comprising: first polarization plates disposed at emission sides of the right-eye and left-eye optical systems; wherein the right-eye virtual image light from the right-eye optical system and the left-eye virtual image light from the left-eye optical system are blocked by the first polarization plate at the emission side of the left-eye optical system and by that of the right-eye optical system respectively; and at least one of: first wave plates disposed at the emission sides of the right-eye and left-eye optical systems so that the real image light from the right-eye and left-eye optical systems passes therethrough; and second wave plates disposed at incident sides of the right-eye and left-eye optical systems.