A photodetector including: a semiconductor substrate including therein a photoelectric conversion section; a scattering structure provided cyclically on the semiconductor substrate on a side of an incident surface of light; and a prism-shaped on-chip lens provided further on the scattering structure on a side of an incident surface of the light, and having a planar incident surface of the light.

The present disclosure is a substrate processing apparatus including: a chamber configured to accommodate a substrate; a heat source configured to heat-treat the substrate; a heat ray sensor provided outside the chamber and configured to receive infrared rays radiated from the substrate; and an infrared ray transmission window provided in the chamber and configured to transmit an infrared ray having a wavelength greater than or equal to 8 μm to the heat ray sensor.

An optical device stack includes at least one of a photodetector or an optical emitter and a metasurface. The metasurface is disposed over a light-receiving surface of the photodetector or a light emission surface of the optical emitter. The metasurface includes a first conductive layer having an electrically-tunable optical property and an array of conductive nanostructures disposed on a first side of the first conductive layer. A second conductive layer is disposed on a second side of the first conductive layer. An electrical insulator is disposed between the first conductive layer and the second conductive layer. A change in an electrical bias between the metasurface and the second conductive layer, from a first electrical bias to a second electrical bias, tunes the electrically-tunable optical property from a first state to a second state, and changes an electrically-tunable optical filtering property of the metasurface.

Disclosed is a blue to white light conversion device, comprising: a light conversion subassembly comprising at least one light conversion layer, sandwiched between two light transmitting members, wherein the light conversion layer comprises a light conversion material comprising phosphors and/or quantum dots; at least one light diffusing subassembly neighboring the light conversion subassembly; and a top frame and a bottom frame surrounding the light diffusing subassembly and light conversion subassembly, respectively.

Systems that enable observing celestial bodies during daylight or in under cloudy conditions.

A sensor window may include a substrate and a set of layers disposed onto the substrate. The set of layers may include a first subset of layers of a first refractive index and a second set of layers of a second refractive index different from the first refractive index. The set of layers may be associated with a threshold transmissivity in a sensing spectral range. The set of layers may be configured to a particular color in a visible spectral range and may be associated with a threshold opacity in the visible spectral range.

Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence.

The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.

The present invention provides a photosensitive composition with which a cured film having excellent patterning properties and excellent electrode anticorrosion properties can be produced. In addition, it also provides a cured film formed of the photosensitive composition, a color filter, a light shielding film, an optical element, a solid-state imaging element, an infrared sensor, and a headlight unit.

The photosensitive composition of the present invention contains a zirconium nitride-based particle containing one or more selected from the group consisting of zirconium nitride and zirconium oxynitride a resin, a polymerizable compound, and a photopolymerization initiator, in which the zirconium nitride-based particle contains 0.001% to 0.400% by mass of a Fe atom with respect to a total mass of the zirconium nitride-based particle.

An optical sensing device includes a substrate, a sensing element layer, a first planarization layer, and a second planarization layer. The sensing element layer is located on the substrate and includes a plurality of sensing elements. The first planarization layer is located on the sensing element layer and has a first slit. The second planarization layer is located on the first planarization layer and has a second slit. An orthogonal projection of the first slit extending in a direction and located on the substrate is not overlapped with an orthogonal projection of the second slit extending in the same direction and located on the substrate, and the orthogonal projection of the second slit on the substrate has a curved pattern.