Abstract: An electrophoretic display (100) comprises an electrophoretic medium (114) having electrically charged particles disposed in a fluid and capable of moving through the fluid on application of an electric field. An electrode (104, 120) is disposed adjacent the electrophoretic medium and arranged to apply an electric field thereto. A dielectric layer (106, 118) is disposed between the electrophoretic medium (114) and the electrode (104, 120) and has at least one aperture (107, 119) extending therethrough. The provision of the apertures (107, 119) in the dielectric layers enables the dielectric layers (106, 118) to protect the electrodes (104, 120) while reducing electro-optical kickback. When multiple electrodes (104, 120) are present adjacent the electrophoretic medium (114), more than one or all of the electrodes (104, 120) may be provided with apertured dielectric layers (106, 118).

Abstract: Provided are an apparatus and method for measuring a visual acuity (VA) by using a focus-tunable lens. The apparatus includes a display engine, an image combiner, a focus-tunable lens provided on a path of the light guided by the image combiner, an input device, and a processor configured to control the focus-tunable lens to assign different first and second optical powers to first and second lens regions, respectively, on a lens surface of the focus-tunable lens, control the display engine to display a VA measuring image through first and second output regions of the image combiner, control the input device to receive a user's input with respect to the VA measuring image, specify one optical power of the first and second optical powers based on the user's input, and determine a VA of a user based on the specified optical power.

Abstract: A method for determining a gaze convergence distance for a user of an eye tracking system. The method involves identifying a plurality of candidate convergence points along a combined gaze vector; and for each candidate convergence point, calculating a probability that the candidate convergence point is at the gaze convergence distance based on: a) the angle between a left gaze vector and a line from a left eye origin through the candidate convergence point; b) the angle between a right gaze vector and a line from a right eye origin through the candidate convergence point; c) the distance between the left gaze vector and the candidate convergence point; and d) the distance between the right gaze vector and the candidate convergence point. The method then involves calculating the gaze convergence distance based on the candidate convergence point that has the highest probability.

Abstract: In one aspect, an apparatus includes a first aspheric refractive surface defined by a first polynomial and positioned to receive input light, and a first aspheric mirror surface comprising a first reflective coating, the first mirror surface defined by a second polynomial and positioned to receive light from the first aspheric refractive surface. The apparatus includes a second aspheric mirror surface comprising a second reflective coating, the second aspheric mirror surface defined by a third polynomial and positioned to receive light from the first aspheric mirror surface, and a second aspheric refractive surface defined by a fourth polynomial and positioned to receive light from the second aspheric mirror surface, wherein the first aspheric refractive surface, the first aspheric mirror surface, the second aspheric mirror surface, and the second aspheric refractive surface are arranged to have a fixed alignment with respect to each other as part of a monolithic structure.

Abstract: An oscillator system includes a oscillator structure configured to oscillate about an axis; a driver configured to generate a driving signal to drive an oscillation of the oscillator structure about the axis with an oscillation phase and an oscillation frequency, wherein the driver includes a phase detector configured to generate a phase error signal representative of a phase error between a measured oscillation of the oscillator structure about the axis and an expected oscillation having the oscillation phase; and a phase controller configured to receive the phase error signal and generate an actuation value based on the phase error signal, wherein the phase controller is configured to adjust the actuation value based on the phase error signal to adjust an actuation phase of the oscillator structure about the axis to minimize the phase error. The driver is configured to generate the driving signal based on the actuation value.

Abstract: An eyewear apparatus includes an adaptive lens per eye; a frame employed to hold the adaptive lens; and at least one photovoltaic device per eye. A photosensitive surface of the at least one photovoltaic device is arranged at a periphery of the adaptive lens. The at least one photovoltaic device is to be employed to convert light incident upon the photosensitive surface into electricity, the electricity being usable to power the adaptive lens.

Abstract: The present application relates to smart glasses including: a frame; a first temple and a second temple, head ends of which are connected to two opposite sides of the frame, the first temple and the second temple each including a first temple member and a second temple member arranged opposite to each other, the first temple member and the second temple member being connected to form an accommodating cavity; a first circuit board accommodated in the accommodating cavity; an external interface provided at a tail end of at least one of the first temple and the second temple, the external interface being electrically connected to the first circuit board; and a first fastener fitted over an outer periphery of the tail end of the temple provided with the external interface, to fix tail ends of the connected first temple member and second temple member.

Abstract: A system for control of optical properties of light comprises a cell comprising a first optically transparent member and a second optically transparent member. The members are disposed in a vertical direction, parallel to each other and at a distance from each other with closed edges, thereby defining a space therebetween. A first fluid is configured to be received within the space. A second fluid, different from the first fluid, is configured to be received into the space, while at least a portion of the first fluid is disposed in the space, causing the first fluid to be displaced. The first and second fluid interface with each other, while remaining separate. The second fluid is configured to be withdrawn from the space leaving the first fluid in the space.

Abstract: An object of the present invention is to provide an optical switch element, an optical switch device, an optical communication system, and an optical computer capable of operating even in a temperature range higher than the Néel temperature. An optical switch element (10) according to the present invention includes a substance including a plurality of transition metal elements having electrons in d-orbitals, and a plurality of anions arranged around each of the plurality of transition metal elements, in which the plurality of transition metal elements are arranged in a lattice form, t2g-orbitals into which the d-orbitals of each of the plurality of transition metal elements are split are connected annularly, and in a state in which the substance does not have a long-range magnetic order, the polarization of signal light (L1) is rotated when control light (C1) is applied.

Abstract: The lens apparatus comprises a second lens barrel configured to hold a lens, a first guide bar configured to guide the second lens barrel in an optical axis direction, a bar holding member that holds one end side of the first guide bar, a cam follower engaged with the bar holding member and including a portion eccentric with respect to a rotation axis, and a first fixing member configured to hold the bar holding member via the cam follower. A position on of the one end side of the first guide bar in a plane perpendicular to the optical axis is adjustable by rotating the cam follower with respect to the fixing member from a direction orthogonal to a direction along the optical axis of the lens.

Abstract: An optical device is provided that includes a first optical member made of a birefringent material and disposed so that an optical axis of the first optical member is neither parallel nor orthogonal to a direction in which incident light travels. Moreover, a second optical member made of a birefringent material is disposed so that an optical axis of the second optical member is neither parallel nor orthogonal to the direction in which the incident light travels. A third optical member is disposed between the first and second optical members and generates an optical path difference of {¼+m×(½)}×? (m is an integer) between orthogonal polarization components of light emitted from the first optical member. At least one of the optical members is rotatable about an axis of the incident light.

Abstract: The application provides a display device and a display method of the display device. A plurality of display components and a plurality of optical components are installed on a rotating mechanism, wherein each of the optical components is located on a corresponding one of the display components, and each of the optical components is disposed obliquely with respect to the corresponding one of the display components. So that when the driving mechanism drives the rotating mechanism to move, the light emitted by the plurality of display components is projected into an imaging space outside the rotating mechanism through the corresponding optical components to form a stereoscopic image.

Abstract: A system and method are provided for spectral shaping of light from a broadband source including multiple wavelengths. The system includes a beam splitter (BS) to receive and transmit an input beam, a dispersive element to disperse the input beam into dispersed beams separated by wavelength, and optic-elements to direct the dispersed beams onto a spatial light modulator (SLM). The SLM selectively modulates the dispersed beams reflected from the SLM, and the optic elements transmit a 0th-order of the reflected light through the dispersive element, which recombines the beams to form a reflected beam directed toward the BS. The BS separates the reflected beam from the input beam and directs it to an optical output of the system. The SLM includes multiple electrostatically deflectable reflective ribbons suspended over a reflective surface of a substrate, wherein the ribbons are separated by a distance equal to a width of the ribbons.

Abstract: There is provided a thin optical system for real-world occlusion in an augmented reality display. The optical system according to an embodiment includes: a first DCRA configured to reflect light beams focused on holes; a mask positioned on a light emitting surface of the first DCRA to pass or block the light beams emitted from the first DCRA; and a second DCRA configured to reflect the light beams which are focused on holes after passing through the mask. Accordingly, the optical system can implement real-world occlusion in the unit of pixel while having a thin form factor.

Abstract: A scanner for a lidar system is configured to direct emitted light to scan a field of regard of the lidar system in accordance with a scan pattern. The scanner includes a mirror and an actuator assembly. The mirror includes a reflective surface and a rear surface and is pivotable along a mirror axle. The actuator assembly is disposed along the rear surface of the mirror and is configured to exert a torque on the mirror to cause the mirror to pivot about the mirror axle.

Abstract: The present invention provides a polarizing plate for a foldable display free of a risk of causing distortion in an image displayed at a folding portion thereof after being repeatedly folded. The polarizing plate for a foldable display includes: a polarizer; and a polarizer protective film formed of a polyester film laminated on at least one surface of the polarizer, wherein the polyester film satisfies the following conditions: (1) a refractive index in a bending direction is from 1.590 to 1.620; (2) a refractive index in a folding portion direction is from 1.670 to 1.700; (3) a refractive index in a thickness direction is 1.520 or less; and (4) a density is 1.380 g/cm3 or more, wherein the bending direction refers to a direction orthogonal to a folding portion of the polyester film at a time when the polyester film is folded.

Abstract: The invention relates to a binocular having two tubes, which are connected to one another by means of a hinged bridge pivotable about a hinge axis for adjusting the interpupillary distance, wherein an axially displaceable focusing means is arranged in each one of the two tubes, and wherein a common focusing device for displacing the focusing means is formed, wherein the focusing device comprises a housing and a focusing knob rotatable about a rotational axis and the rotational axis is arranged coaxially to the hinge axis, and wherein the focusing knob is rotationally coupled to a focusing gear and the focusing gear, in each case, comprises a push rod, by means of which the focusing gear is, in each case, coupled to one of the two focusing means, wherein a direction of a back-and-forth displacement of the push rod and a direction of the hinge axis are aligned obliquely with respect to each other.

Abstract: Example embodiments of systems, methods, and devices for transaction card alignment are provided. In one example embodiment, a mobile device may include a first component and a second component foldable with respect to one another between a first configuration and a second configuration. The mobile device may further include a screen interface on an interior side of the first component, and an alignment feature along the interior side, the alignment feature providing alignment for a contactless card with respect to the screen interface, wherein the contactless card is uncovered by the second component in the first configuration and covered by the second component in the second configuration.

Abstract: Apparatus for positioning a microscope slide and comprising co-acting first and second clamping jaws attached to a robot arm and adapted to receive and carry a microscope slide.

Abstract: A wearable display device suitable for use in an augmented reality environment is disclosed. The wearable display device can include a projector configured to project light through diffractive optical elements that then distributed the light to multiple display regions. Each of the display regions can be arranged to project light out of the wearable display device towards an eye of a user. Since each of the display regions are positioned in different locations with respect to an eye of a user, the result is that each display region directs light in a different direction. In this way the apparent field of view for a user of the wearable display can be substantially increased.