Abstract: In a control device for a vehicle, a first terminal is disposed downstream of a microcomputer in a current path through which a current flows through the microcomputer. The anode of a connection diode is connected to a connection node between the microcomputer and the first terminal. One end of a connection switch is connected to the cathode of the connection diode. A second terminal is connected to the other end of the connection switch. A switching circuit turns ON the connection switch from OFF when a voltage at the first terminal with respect to the potential of the second terminal increases to a threshold voltage or higher.

Abstract: An actuator may include a stator supporting a magnet; a stationary pole; and a bobbin supporting a winding of a coil, the bobbin being coaxial with the stator and stationary pole, and positioned inside the magnet and outside the stationary pole. A gap may be provided between the bobbin and the stationary pole. A beam steering mechanism may include a mirror; a frame; a pivot anchor fixed to the frame and connected to the mirror; and an actuator. An output end of the actuator may be connected to the rear surface. A beam steering mechanism may alternatively include a flexure; a mirror attached to the flexure; a frame; supports fixed to the frame and the flexure; a pivot anchor fixed to the frame and connected to the mirror or the flexure; and an actuator. An output end of the actuator may be connected to the flexure.

Abstract: A head-up display system for vehicles, which has a light source that emits p-polarized visible light, and laminated glass to which the p-polarized visible light is incident from the vehicle interior side, and which displays a virtual image on the vehicle exterior side of the laminated glass. The laminated glass has a p-polarized light reflecting member in a region where the p-polarized visible light is incident, the incident angle of the p-polarized visible light to the vehicle interior side surface of the laminated glass is 42° to 72°, the virtual image includes a main image observed with the highest luminance and a subsidiary image observed with a lower luminance than the main image, and the ratio of the reflectance of the subsidiary image to the reflectance of the main image is at most 30% within the entire range of the incident angle.

Abstract: Various embodiments provide for grouping cells in a cell library based on iterative clustering, which can be used for pruning the cell library. In particular, various embodiments provide for grouping cells in a cell library based on iterative clustering in view of a criterion (or cell attribute), and for pruning of the cell library based on the grouping of cells, which can optimize the cell library for the criterion. For instance, some embodiments provide for grouping cells in a cell library based on iterative clustering in view of leakage power and then applying cell library pruning to optimize for cell leakage power.

Abstract: A method of manufacturing a light control film. The method includes providing a plurality of alternating layers of transparent material and light absorbing material, where the alternating layers of transparent material and light absorbing material are stacked in a stacking direction. The method also includes cutting, with a triangle wave-shaped edge, across the plurality of alternating layers of transparent material and light absorbing material in a first cutting plane and a second cutting plane thereby resulting in the light control film including a serrated first surface and a serrated second surface, wherein each of the first and second cutting planes is orientated at an angle less than 90° to the stacking direction. The triangle wave-shaped edge includes a cutting edge with a triangular wave shape perpendicular to the first and/or second cutting plane.

Abstract: A detection optical system includes an objective lens, a first relay lens, a second relay lens, and an imaging lens, which are arranged in order from a side of a specimen along an optical path of light from the specimen illuminated by a light source. A primary imaging plane is provided on the optical path between the first relay lens and the second relay lens. An aspherical correction plate that corrects spherical aberration is arranged at a position located between the second relay lens and the imaging lens and substantially conjugate with a pupil position of the objective lens.

Abstract: An optical system includes a movable unit movable in a direction eccentric to an optical axis. The movable unit includes a resin layer and a lens cemented together and satisfies a predetermined condition.

Abstract: In some embodiments, a wearable device performs a visual test that includes simultaneously presenting a first eye stimulus for a first eye of a user of the device and a second eye stimulus for a second eye of the user, where the first eye stimulus has a display characteristic level greater than a display characteristic level of the second eye stimulus. The display characteristic level of the first eye stimulus and second eye stimulus are sequentially increased until feedback information indicates detection of at least one of the first eye stimulus or the second eye stimulus by the user. In response to the feedback information indicating such detection by the user, the other stimulus is presented at one or more sequentially increasing display characteristic levels until the feedback information indicates detection of the other stimulus. Ocular anomaly information of the user is generated based on the feedback information.

Abstract: An objective optical system for an endoscope consisting of, in order from an object side toward an image side: a front group; and a rear group, wherein: the front group consists of, in order from the object side toward the image side: one negative lens; an optical path deflecting prism; an aperture stop; and one positive lens. The objective optical system for an endoscope satisfies a predetermined conditional expression.

Abstract: The technology described herein is directed towards a reconfigurable intelligent surface (RIS) that harvests RF energy from incoming signals. In one implementation, there are two types of RIS elements (unit cells), one type engineered to capture and wirelessly harvest energy from incoming electromagnetic waves, while the other type redirects the incoming signals towards a predetermined direction. The harvested energy is combined and converted to DC power using a harvesting circuit. In one implementation, a dual-mode energy harvesting circuit employs a higher power rectifier sub-circuit and a lower power rectifier subcircuit, with a multiport circulator and switch that self-actuates to use one or the other rectifier subcircuit based on the combined RF input power captured by the energy harvesting elements. A multiple battery approach is described, in which one battery is charging based on the converted DC power, another, previously-charged battery is powering the reconfigurable intelligent surface components.

Abstract: A display device is provided. The display device includes a display module including a display panel, a naked-eye 3D grating, and a reverse prism sheet disposed between the display panel and the naked-eye 3D grating. The reverse prism sheet includes a substrate and a prism layer disposed on a side of the substrate, and the prism layer is disposed toward the display panel. The display device provided by the present disclosure may diverge the light emitted from the backlight through the display panel into the naked-eye 3D grating to enhance the stereoscopic optical effect.

Abstract: Described herein are soft contact lens sets and methods of designing soft contact lens sets based on incorporating different levels of spherical aberration into the lens design depending on the target spherical power. The different levels of spherical aberration are equal to or less than zero D/mm2, and account for clinically measured population-average ocular spherical aberration, manufacturing variations and generalized accommodative ability.

Abstract: A camera module includes a camera motor, a lens, an image sensor assembly, and a variable aperture. The camera motor includes a focusing part, and the focusing part includes a base, a carrier, and a driver. The driver is fastened to the base and is configured to drive the carrier to move relative to the base in a specified direction. The carrier forms an installation hole in a specified direction. The lens is fastened in the installation hole, and an optical axis of the lens is parallel to the specified direction. The variable aperture is fastened on the carrier and located on a light incoming side of the lens. The image sensor assembly is disposed at one end of that is of the base and that is away from the variable aperture. Both of the variable aperture and the lens are disposed on the carrier of the focusing part.

Abstract: A camera module includes an imaging lens assembly and an image sensor. The imaging lens assembly includes a plastic optical element with a light-blocking layer disposed on its transparent surface. The plastic optical element includes an optical effective area, and a peripheral region of the light-blocking layer forms a specific shape around the optical effective area so as to define an aperture region. The peripheral region includes a main portion and a compensation portion. The main portion is physically contacted with the transparent surface. The compensation portion is disposed on an edge of the main portion adjacent to the optical effective area, and an optical density of the compensation portion is lower than an optical density of the main portion. The image sensor is disposed on an image side of the imaging lens assembly for defining a maximum image height and further defining a relative illumination.

Abstract: The head-up display device includes a display element that emits image light and a virtual image optical system. The virtual image optical system includes a lens unit and a free curved surface mirror disposed along the emission direction of the image light in this order from a position close to the display element. The display element is disposed with a tilting attitude with respect to the optical axis of the lens unit with an end on the housing aperture side in an emission surface being close to an incidence surface in the lens unit and with an end on the opposite side of the housing aperture in an emission surface being apart from an incidence surface in the lens unit. The lens unit has an optical characteristic of optically enlarging an optical path length difference according to a virtual image distance difference.

Abstract: A stacked three-dimensional (3D) metasurface includes a first layer with a first kernel configured to apply a first convolution on a first frequency of an incident polarized light, and a second layer with a second kernel different than the first kernel. The second kernel is configured to apply a second convolution different than the first convolution on a second frequency of the incident polarized light and the second frequency is different than the first frequency such that the stack 3D metasurface provides at least two independent convolutions on the incident polarized light.

Abstract: Embodiments of this application disclose a zoom lens, a camera module, and a mobile terminal. The zoom lens includes a first lens group, a second lens group, a third lens group, and a fourth lens group that are arranged along an object side to an image side. The first lens group is a fixed lens group with positive focal power, the second lens group is a zoom lens group with negative focal power, the third lens group is a compensative lens group with positive focal power, and the fourth lens group is a fixed lens group with positive focal power. In a zooming process of the zoom lens from a short-focal end to a long-focal end, the second lens group moves towards the image side along an optical axis, and the third lens group moves towards the object side along the optical axis.

Abstract: An eyeglass device including a variable transmission ophthalmic lens, a method for driving the transmission of such lens, and a non-transitory computer-readable storage medium for implementing such method. The eyeglass device comprises a light sensor configured for measuring an amount of light in the environment of a wearer and a controlling circuit configured for receiving at least light data from said light sensor and for driving the transmission of said ophthalmic lens on the basis of said light data. The controlling circuit is configured for driving the transmission of said ophthalmic lens on the basis further of movement data, said movement data being derived from an estimation of a movement of the wearer's head.

Abstract: An ophthalmic lens including a substrate-independent adhesive primer for joining a functional element to a lens substrate. In particular, the ophthalmic lens includes at least one polymerized lens substrate including at least one thermoset monomer, a functional component including at least one thermoplastic layer, a surface of the at least one thermoplastic layer facing the polymerized lens substrate, and a primer coating deposited onto the surface of the at least one thermoplastic film facing the polymerized lens substrate.

Abstract: An imaging lens consisting of, in order from an object side to an image side: a front group; a stop; and a rear group that has a positive refractive power. The imaging lens satisfies predetermined conditional expressions.