A LiDAR system has a field of view and includes a polarization-based waveguide splitter. The splitter includes a first splitter port, a second splitter port and a common splitter port. A laser is optically coupled to the first splitter port via a single-polarization waveguide. An objective lens optically couples each optical emitter of an array of optical emitters to a respective unique portion of the field of view. An optical switching network is coupled via respective dual-polarization waveguides between the common splitter port and the array of optical emitters. An optical receiver is optically coupled to the second splitter port via a dual-polarization waveguide and is configured to receive light reflected from the field of view. A controller, coupled to the optical switching network, is configured to cause the optical switching network to route light from the laser to a sequence of the optical emitters according to a temporal pattern.

A display device includes a light source, a spatial light modulator, and an optical assembly. The light source is configured to provide illumination light and the spatial light modulator is positioned to receive the illumination light. The optical assembly includes a first reflective surface with an aperture and a second reflective surface that is opposite to the first reflective surface. The optical assembly is positioned relative to the light source so that at least a first portion of the illumination light received by the optical assembly is reflected by the second reflective surface toward the first reflective surface, is reflected by the first reflective surface toward the second reflective surface, and is transmitted through the second reflective surface. A method performed by the display device is also disclosed.

A HUD system including a light source projecting p-polarized light towards a glazing, the glazing includes an outer sheet of glass having a first surface and a second surface, and an inner sheet of glass having a first surface and a second surface, and the second surface of the inner sheet of glass has a first coating, where both sheets are bonded by at least one sheet of interlayer material, and the first coating includes at least one high refractive index layer having a thickness from 50 to 100 nm, and at least one low refractive index layer having a thickness from 70 to 160 nm, and the least one high refractive index layer has at least one of an oxide of Zr, Nb, Sn; a mixed oxide of Ti, Zr, Nb, Si, Sb, Sn, Zn, In; a nitride of Si, Zr; or a mixed nitride of Si, Zr.

A near-eye display device, including: a display screen (1) used for image display; an imaging lens (2) located at a light emission side of the display screen (1) and used for imaging a displayed image of the display screen (1); a flat plate (3) located on the side of the imaging lens (2) facing away from the display screen (1) and obliquely arranged relative to the optical axis of the imaging lens (2); a phase retardation layer (4) located on the side of the flat plate (3) facing the imaging lens (2); a polarization beam-splitting layer (5) located between the phase retardation layer (4) and the flat plate (3); a polarizing layer (6) located between the polarization splitting layer (5) and the flat plate (3); and a curved mirror (7).

A light source device according to an embodiment of the present disclosure includes: a first light source section that emits light in a first wavelength region; a wavelength conversion section that is disposed on an optical path of the light in the first wavelength region, and is excited by the light in the first wavelength region emitted from the first light source section to emit light in a second wavelength region different from the first wavelength region; a polarization separation element that is disposed between the first light source section and the wavelength conversion section, and separates incident light on the basis of polarization; and a color separation element that is disposed between the first light source section and the polarization separation element, and separates incident light on the basis of a wavelength region.

The present disclosure relates to an apparatus and a method for a thickness and a profile of a multilayer thin film using a vibration insensitive interference method are provided, which allow measuring the phase of a measurement object by acquiring a plurality of different phase-shifted interference signal images at a time through interference signals between a reference flat and the measurement object by a polarizing beam splitter, a quarter-wave plate, a shutter and a pixelated polarizing camera, and which also allow measuring reflectance of the measurement object by acquiring a plurality of reflected signal images obtained at a time through respective reflected lights for each of a reference surface and the measurement object by a plurality of different polarizers.

A display device includes a light source, a spatial light modulator, and an optical element. The optical element includes a reflective surface. The optical assembly is positioned relative to the light source so that at least a portion of the illumination light received by the optical element is reflected at the reflective surface back toward the light source. The spatial light modulator is positioned to receive at least a portion of the illumination light reflected by the reflective surface. A method performed by the display device is also disclosed.

A wavelength conversion element according to the present disclosure includes a wavelength conversion layer having a first surface having a recessed part, and a plurality of air holes, and configured to be excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band, a particle disposed in the recessed part, a light transmissive member disposed so as to cover the recessed part and the particle, a reflecting layer disposed so as to be opposed to the first surface of the wavelength conversion layer, and a base member disposed so as to be opposed to the reflecting layer.

An imaging apparatus has one or more lenses with a common optical axis and that define an image plane. A splitting optic is disposed to split the light along the optical axis to provide, at the image plane, at least a first copy of an image at a first magnification and a second copy of the image at a second magnification different from the first magnification.

Optical systems, receivers, devices, and methods including a free space beam combining and polarization splitting prism to receive local oscillator light and optical signals in substantially parallel input paths that are in the same plane and output two orthogonally polarized beams in substantially parallel output paths that are substantially perpendicular to the plane of the input paths. Light in one of the incoming paths is reflected toward a combining surface that combines the local oscillator light and the optical signal. The combined beam then encounters a polarization splitting surface that splits the combined beam into two orthogonally polarized beams. One of the polarized beam may be reflected 90 degrees in plane and then both orthogonally polarized beams are reflected 90 degrees of out of plane to output each orthogonally polarized beam into substantially parallel optical output paths.