A transmission apparatus for laser radar, which includes: a light source including a light emitting array composed of M*N light emitting unit(s) configured for transmitting M*N beam(s) of light, where each row of the light emitting units of the light emitting array are arranged along a first direction, each column of the light emitting units of the light emitting array are arranged along a second direction; a collimating mirror configured for collimating the M*N beam(s) of light; a diffusion sheet including a first field of view in the first direction configured for converting the M*N beam(s) of light into M*N beam(s) of linear light with a first divergence angle in the first direction, and projecting the linear light to a target object to form N linear light spots parallel to the first direction, and the first field of view being equal to the first divergence angle.

A light-emitting device includes: a plurality of light-emitting elements arranged in an array on a base member; and a lens that comprises at least four Fresnel lenses disposed above the base member and facing the plurality of light-emitting elements. In a top plan view, a center of each of the plurality of light-emitting elements is offset from a lens center of the corresponding one of the Fresnel lenses of the lens in a direction toward a center of the lens. The plurality of light-emitting elements include at least two first light-emitting elements and at least two second light-emitting elements, wherein an emission color of the first light-emitting elements is different from an emission color of the second light-emitting elements.

Provided is an imaging device including a sensing array including a plurality of sensing elements, an imaging lens array including a plurality of imaging optical lenses, each of the plurality of imaging optical lenses having a non-circular cross-section perpendicular to an optical axis, and configured to transmit light received from an outside of the imaging device, and a condensing lens array including a plurality of condensing lenses disposed between the imaging lens array and the sensing array, and configured to transmit the light passing through the imaging lens array to the sensing elements, wherein a number of the plurality of imaging optical lenses is less than a number of the plurality of condensing lenses.

Focus system (1) comprising an imaging objective (10) with an optical element (100), two emitters (20) for emitting a beam (200) respectively, wherein the imaging objective (10) is arranged to depict an object (3) located in an object plane (30) in an image plane (31), the optical element is arranged to adjust a distance (300) from the object plane (30) to the imaging objective (10), the beams (200) are transmitted through or reflected by the optical element (20), and the beams (200) intersect at the object plane (30).

A light field projector device is described which outputs a light field. The projector has a projector base with a projection optical system configured to output light rays to form a projected image, a collimating optical system configured for collimation of the projected image light rays to form a second projected image, which is directed to a display optical system to produce a light field image. Light field projector devices may be used individually or in combination with one or more other projectors which can be arranged to form a direct projection light field display. The arrangement of light field projector devices may have an individual or shared display optical system. The projector device is designed to provide high pixel density, providing an image that looks crisp and unpixellated.

Provided are a display panel and a display device. The display panel includes a substrate, light-emitting units, a first organic layer, and light extraction structures located between the light-emitting units and the first organic layer. The first light extraction layer has a first central axis and is symmetrical about the first central axis, the second light extraction layer has a second central axis and is symmetrical about the second central axis, and the first central axis and the second central axis are perpendicular to the substrate. A surface of the second light extraction layer connecting the first light extraction layer is a first surface, a surface of the second light extraction layer facing away from the first light extraction layer is a second surface, and at least one of the first surface and the second surface comprises straight lines in a cross-section perpendicular to the substrate.

Imaging systems, cameras, and image sensors of this disclosure include imaging pixels that include subpixels. Diffractive optical elements such as a metasurface lens layers or a liquid crystal polarization hologram (LCPH) are configured to focus image light to the subpixels of the imaging pixels.

According to an aspect, a detection device includes: a substrate that has a detection region; a plurality of photodiodes provided in the detection region; a plurality of lenses provided so as to overlap the respective photodiodes; and a plurality of dummy lenses that are provided in a peripheral region between an outer perimeter of the detection region and edges of the substrate and are provided so as not to overlap the photodiodes.

Disclosed is a wearable electronic device. The wearable electronic device includes: a display module comprising a display; a housing to which the display module is coupled; and a projection display disposed on a side portion of the housing and configured to display information on a display area adjacent to the housing, the projection display may include: a substrate disposed along a mounting surface provided on a side portion of the housing; a plurality of light-emitting devices comprising light-emitting circuitry disposed on the substrate in a grating arrangement; and a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices.

An optical aperture system is provided that includes a photonic integrated circuit. The photonic integrated circuit includes a plurality of apertures, a plurality of optical phase shifters coupled to respective apertures of the plurality of apertures, an optical splitter-combiner coupled to the plurality of optical phase shifters, an optical switch coupled to the optical splitter-combiner, a light source coupled to the optical switch, and a photodetector coupled to the optical switch. The optical aperture system further includes a controller configured to execute a first set of instructions to control the plurality of optical phase shifters and the light source in accordance with a first operating mode of a plurality of operating modes of the optical aperture system, and a processor configured to execute a second set of instructions to process an output of the photodetector in accordance with the first operating mode of the optical aperture system.