Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.

Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.

Abstract: The fluorescence measurement system includes a host apparatus and a self-contained, multichannel optical cartridge. The host apparatus includes a well plate receptacle, and a stage having optical cartridge receptacles that are elongate along one axis of the well plate. The stage and the well plate receptacle are movable relative to one another in the direction of the other axis of the well plate. The optical cartridge engages with the optical cartridge receptacle and includes a linear array of optical assemblies each including an excitation light source, and an emission light detector to generate an intensity signal. The optical cartridge also includes, a memory to store calibration information for each optical assembly. The host apparatus additionally includes a processor to correct the intensity signal from each optical assembly of the optical cartridge using the calibration information received from the optical cartridge for the optical assembly.

Abstract: Disclosed are various embodiments of front-end analog circuitry for use in conjunction with optical encoders. Highly accurate analog output signals are provided by front-end analog circuitry in incremental or absolute motion encoders to interpolation circuitry, which is capable of providing high interpolation factor output signals having high timing accuracy. The disclosed interpolation circuits may be implemented using CMOS or BiCMOS processes without undue effort.

Abstract: Disclosed are various embodiments of front-end analog circuitry for use in conjunction with optical encoders. Highly accurate analog output signals are provided by front-end analog circuitry in incremental or absolute motion encoders to interpolation circuitry, which is capable of providing high interpolation factor output signals having high timing accuracy. The disclosed interpolation circuits may be implemented using CMOS or BiCMOS processes without undue effort.