Abstract: An image generating apparatus includes an obtaining unit configured to obtain plural pieces of tomographic image data, in which each piece of tomographic image data indicates a cross section of substantially the same position of a subject, a calculation unit configured to calculate a motion contrast value based on the plural pieces of tomographic image data and a comparison result of a representative value of the plural pieces of tomographic image data indicating a signal intensity and a threshold, a generation unit configured to generate a motion contrast image of the subject based on the motion contrast value, and a change unit configured to change the threshold.

Abstract: Optical apparatus includes an acousto-optic medium and an array of multiple piezoelectric transducers attached to the acousto-optic medium. A drive circuit is coupled to apply to the piezoelectric transducers respective drive signals including at least first and second frequency components at different, respective first and second frequencies and with different, respective phase offsets for the first and second frequency components at each of the multiple piezoelectric transducers.

Abstract: Embodiments disclosed herein include devices, systems, and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms. The apparatus and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms may employ ocular surface interferometry (OSI) devices or other imaging and display devices capable of imaging and displaying a picture of a patient's eye during tear film break-up time and blink rate related procedures.

Abstract: An apparatus (110), system (100), and method (900) for displaying an image (880). Instead of using an expensive configuration of prisms (310) such as TIR prisms (311) or RTIR prisms (312) to direct light (800) to and from a DMD (324), a plate (340) with transmissive (374), reflective (372), and/or polarization (373) characteristics is used. The plate (340) can be implemented in a wide variety of different embodiments using a wide variety of different components and configurations.

Abstract: Near-to-eye devices with steerable phased arrays are provided. In some configurations, a device comprises waveguides, e.g., color plates, that are individually formed to couple a corresponding color output of a micro-display engine and project an image into a human vision system. Some configurations include steerable phased arrays for generating light defining a field of view of image content. The generated light is aligned with light from a real-world view to create an output that concurrently displays the real-world view with the field of view of the image content. The light from the steerable phased arrays is directed through one or more waveguides to an output region of the one or more waveguides. The light from the real-world view can pass through transparent portions of waveguides in a manner that aligns a rendering of the image content with the light from the real-world view to create augmented reality views.

Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage.

Abstract: A system and method for an electrowetting display device are presented. The electrowetting display device includes a first support plate and a second support plate, A plurality of pixel walls associated with an electrowetting pixel are formed over the first support plate. A color filter is over the electrowetting pixel. The color filter allows propagation of visible light of a first color and prevents propagation of visible light of a second color. In an embodiment, the color filter includes a layer of light-absorbing photoresist that is patterned into a first plurality of regions and a second plurality of regions. Each region in the first plurality of regions has a first optical density and each region in the second plurality of regions has a second optical density so that the color filter has a non-uniform optical density.

Abstract: A micro-projection system for projecting light on a projection surface, comprising: at least one coherent light source (101); optical elements (102, 108, 109) in the optical path between said coherent light source and said projection surface; said optical elements including at least one reflective member (102) actuated by a drive signal for deviating light from said light source so as to scan a projected image onto said projecting surface; said optical elements including at least one vibrating element (102) actuated by a vibrating signal so as to reduce speckle onto said projecting surface. The corresponding method for reducing speckle is also provided.

Abstract: A head-up display system includes an image-forming and projection device, a combiner, a housing, and a lid body. The lid body includes at least a first divided lid body and a second divided lid body which engage with each other at the time of covering an opening of the housing. The first divided lid body includes an optical path regulator that regulates an optical path of projection light of a display image projected from the image-forming and projection device in use of the combiner onto an inner side of the housing, and allows projection light, which is necessary for formation of the virtual image of the display image in the projection light of the display image, to pass through the optical path regulator. The second divided lid body includes a covering member that covers the optical path regulator at the time of covering the opening.

Abstract: A display device includes a bottom support plate and an opposing top support plate. A pixel region is between the bottom support plate and the top support plate. A color filter layer on an inner surface of the top support plate includes a plurality of color filters, wherein a first color filter of the plurality of color filters is positioned within the pixel region. A black matrix member is disposed between the first color filter and an adjacent second color filter of the plurality of color filters. A portion of the first color filter is disposed over the black matrix material and a portion of the second color filter is disposed over the portion of the first color filter.

Abstract: Methods for presenting dynamic images to a user, configured to evaluate and/or improve the user's foveal and/or peripheral visual acuity. Dynamic computer games are popular, but the moving images of prior art dynamic computer games are not suitable for improving visual acuity. To overcome this restriction, embodiments of the present invention analyze user's responses to the moving images to determine a change in the user's visual acuity, and responsively adjust parameters of the moving images, such as speed, direction of motion, orientation, crowding, contrast, and spatial frequency, in order to improve the user's visual acuity.

Abstract: An iris scanning camera module includes a housing having an internal space, and a first lens module and a second lens module inside the internal space. The first lens module and the second lens module have optical axes parallel to each other. An image sensor is configured to convert light passing through the first lens module and the second lens module into an image. The image sensor is divided into a region including a color pixel array and as another region including a black-and-white pixel array. The color pixel array is aligned in an optical axis direction of the first lens module, and the black-and-white pixel array is aligned in an optical axis direction of the second lens module.

Abstract: A display apparatus (1) for use in displaying an image to a viewer, comprising a transparent optical waveguide display unit (2) arranged for receiving image-bearing light (4) into the optical waveguide display unit, for guiding the received light therealong to an output area (24) thereof, and for outputting from the output area the image-bearing light (6) collimated to present a viewable image. A light-emitting display screen (3) arranged adjacent to and behind the output area of the optical waveguide display unit is visible therethrough behind the output area (24). This combines the light from the light-emitting display screen (e.g. imagery) with the viewable image (6).

Abstract: A wavefront device produces adjustable amplitudes in optical path differences and adjustable axis orientation angles. two substantially identical wave plates have a wavefront profile of at least the third order Zernike polynomial function which are not circularly symmetric, as denoted by Z(i,j) where i?3 and j?0. The wave plates are mounted in rotatable mounts with their optical centers substantially aligned with each other. An subjective wavefront refraction instrument and method are provided to correct low and high order aberrations of the eye, using the adjustable wave plates that have astigmatism and higher order Zernike function optical path difference wavefront profiles.

Abstract: A system and method for determining the measurements needed to fabricate prescription eyeglasses. The system and method take into account how the frames fit naturally on the head and how the person's posture orients the head and alters the line of sight through the lens of the eyeglasses. A sensor unit is provided that is attached to the eyeglass frames. The individual then wears the eyeglass frames and moves through at least one situational simulation. The sensor unit generates data that corresponds to changes in orientation. The data is used to determine how a person's line of sight is altered by the anatomy of the face and the posture of the head.

Abstract: An electrophoretic element according to an embodiment of the present invention includes: a first substrate and a second substrate facing each other; and an electrophoretic layer provided between the first substrate and the second substrate, and has a plurality of pixels. In each pixel, the electrophoretic layer includes a dispersion medium, and a plurality of types of electrophoretic particles dispersed in the dispersion medium. The plurality of types of electrophoretic particles include first electrophoretic particles and second electrophoretic particles that are charged with the same polarity and have different threshold characteristics from each other. In each pixel, the electrophoretic element includes at least three electrodes to which different potentials can be applied.

Abstract: An electrophoretic element according to an embodiment of the present invention includes: a first substrate and a second substrate facing each other; and an electrophoretic layer provided between the first substrate and the second substrate, and has a plurality of pixels. In each pixel, the electrophoretic layer includes a dispersion medium, and a plurality of types of electrophoretic particles dispersed in the dispersion medium. The plurality of types of electrophoretic particles include first electrophoretic particles and second electrophoretic particles that are charged with the same polarity and have different threshold characteristics from each other. In each pixel, the first substrate includes at least three electrodes to which different potentials can be applied.

Abstract: To provide a head-up display apparatus capable of displaying an easily visible image. The apparatus projects a display image displayed on the image displaying part installed in an instrument panel of a vehicle toward a windshield glass (translucent member) through an opening of the instrument panel, reflects the image on the windshield glass, and displays character information and symbol information as a virtual image, which is visible from a predetermined eye-position range. The character information is displayed in a first area where a difference in distortion (binocular parallax) of the virtual image is less than a predetermine value when the translucent member is seen from the predetermined eye-position range.

Abstract: A multi-degree-of-freedom support mechanism includes a first member having a protruding part with a spherical surface, and a second member having a pair of planes opposite to each other across the protruding part. One of the first member and the second member is able to make relative movement with respect to the other with sliding movement of the spherical surface on the pair of planes. The pair of planes is in contact with the spherical surface. The relative movement includes translational movement in two degrees of freedom in planar direction and rotational movement about an axis in three degrees of freedom in the pair of planes.

Abstract: Disclosed a display screen having a mirror function, a control method, a device and a terminal. The display screen includes: a screen lens (20), a liquid crystal screen (22) and a nano suspension layer (21), wherein the nano suspension layer (21) is disposed between the screen lens and the liquid crystal display. The control method includes: controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-off signal; and controlling the upper plate to provide a voltage, or controlling the upper plate to provide a voltage and controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-on signal.