A high brightness light engine apparatus is disclosed, comprising at least one long red wavelength light source with a peak wavelength longer than 630 nm, at least one green wavelength light source and at least one blue wavelength light source. Furthermore, the long wavelength red light may be combined with short wavelength red light and green/blue lights into a co-axial light path by at least one beam combiner such as wedged dichroic mirror, X-plate dichroic mirror or a dichroic X-cube. A 3-channels/4-channels/5-channels light engine apparatus and a hybrid laser LED light engine apparatus are disclosed that comprises at least a long wavelength red light source, one blue light source, and one converted green light source, combined by a dichroic mirror together with a X-plate dichroic mirror, a wedged dichroic mirror or a dichroic X-cube without Etendue increase to achieve high brightness light engine output as high as 5000 lm.

The present invention relates to a photodetector array for capturing image data, comprising: photodetector cells arranged on a substrate, each including a single-photon avalanche diode, wherein the active areas of the photodetector cells are neighbored along a hexagonal grid; microlenses, having a hexagonal or circular shape, each arranged on one photodetector cell to focus light onto the photodiode.

To provide a laser irradiation apparatus which suppresses adhesion of foreign matters to an optical element, a laser irradiation device includes: emission optical systems, which form a beam in which laser light generated by a laser oscillator converges on a predetermined beam spot, and continuously change an irradiation direction or the like of the beam; and a protective member which is arranged between the emission optical system and the beam spot, and protects the emission optical system from foreign matters scattered from an irradiation object side, and the protective member has an aperture through which the beam passes and moves in connection with a change of the irradiation direction or the like of the beam so that the aperture is positioned on a path of the beam.

Systems for generating solar power are provided. One such system includes a solar radiation collector and one or more side-emitting fiber-optic cables, coupled to the solar radiation collector. The system further includes one or more photovoltaic cell enclosures, including an outer housing and one or more photovoltaic cells, wherein the one or more side-emitting fiber-optic cables is positioned within the outer housing and configured to emit, to the one or more photovoltaic cells, solar radiation collected from the solar radiation collector.

A Concentrating PhotoVoltaic (CPV) system employs an inflatable non-imaging CPC concentrator to concentrate sunlight to realize extremely low cost and a synergistically combined photonic crystal waveguide solar spectrum splitter and perovskite integrated circuitry solar cell package to realize ultra-high conversion efficiency of solar radiation. The corporation of band gap variable perovskite materials into the integrated circuit solar cell not only reduces the cost and raises the efficiency of the photovoltaic package as the receiver, but also addresses the unstable issue of the perovskite materials through sealing the perovskite materials into package to prevent moisture, reducing the heat generation to low the temperature, and filtering the UV light and channel to other elemental solar made of broader band gap photovoltaic materials.

A light source apparatus can avoid double-counting of particles in a flow cytometer for measuring and analyzing a plurality of particles flowing in a flow cell. A light source apparatus for a flow cytometer includes a semiconductor laser for emitting a laser beam, a collimating lens for collimating the laser beam emitted from the semiconductor laser in a spread light state, a first beam conversion unit composed of prisms and a second beam conversion unit composed of prisms for matching a flow cell length direction with a slow axis direction of the collimated laser beam in a flow cell after reducing the beam diameter in a fast axis direction and increasing the beam diameter in the slow axis direction, and a focusing lens for focusing the laser beam passed through these beam conversion units in the flow cell.

A LiDAR-integrated lamp device for a vehicle, wherein a headlamp and a LiDAR system are mounted at the same position, such that the layout may be reduced and the number of parts may be decreased by sharing and combining parts, reducing the manufacturing cost.

An optical device includes a range finding module. The range finding module includes a first light condenser unit, a light emitting unit and a light receiving unit. The first light condenser unit defines an optical axis and a hole disposed along the optical axis. The first light condenser unit, the light emitting unit and the light receiving unit are sequentially arranged along the optical axis. The light is emitted by the light emitting unit, passes through the hole, reaches an object, is reflected by the object, is converged by the first light condenser unit and is received by the light receiving unit to generate an electrical signal.

Reduction or elimination of negative consequences of reflected stray light from lens surfaces is achieved by propagating a laser beam through an eccentric pupil that excludes the optical axis of the system, which is rotationally symmetric. In such systems, stray light reflections eventually are focused onto the unique optical axis of the system, in either a real or virtual focal region. By using an eccentric pupil, all damage due to focusing of the stray light lies outside of the beam. These focal regions can, e.g., be physically blocked to eliminate beam paths that lead to optical damage, re-pulse beams and parasitic lasing.

A security light having optional connection to multiple power supplies. The lighting controller can sense the appropriate connected supply and automatically connect to three different power supplies which include house voltage connection through a typical junction box, a remote solar charging station, and on-board batteries that can be used as a third backup power supply. Additional implementations include power outage detection and backup illumination along with low voltage power supply from a mounting structure.