A light source lighting device includes: a laser light source unit; a converging lens that converges a plurality of light beams emitted from the laser light source unit; a diffuser plate that diffuses a plurality of light beams converged by the converging lens; and a second collimating lens that collimates a light beam diffused by the diffuser plate. The converging lens has an aspherical surface, the second collimating lens has a spherical surface, the aspherical surface of the converging lens has an aspherical surface coefficient that is set to cancel a positive spherical aberration of the second collimating lens. A luminous flux density in a proximity of an optical axis is lower than a luminous flux density in a peripheral part away from the optical axis, the optical axis being an axis of a light beam emitted from the second collimating lens.

A structured-light projector, a camera assembly, and an electronic device are provided. The structured-light projector includes: a first light source, configured to emit a first light beam; a diffractive optical element, provided on a light-emitting side of the first light source and configured to generate structured light based on the first light beam incident on the diffractive optical element; an optical steering element, provided between the first light source and the diffractive optical element; and a second light source, wherein the second light source includes a light emitter, configured to emit a second light beam, the second light beam comprising infrared light. Via the structured-light projector, a scattered image and an infrared image of the target object can be acquired simutaneously.

A laser beam applying unit of a laser processing apparatus for processing a wafer includes a laser oscillator for emitting a pulsed laser beam having a wavelength transmittable through the wafer, a beam condenser for converging the pulsed laser beam emitted from the laser oscillator onto the wafer held on a chuck table, a beam splitter assembly disposed between the laser oscillator and the beam condenser, for splitting the pulsed laser beam emitted from the laser oscillator to form at least two converged spots on the wafer that are spaced from each other in X-axis directions, and a mask assembly disposed between the laser oscillator and the beam condenser, for reducing the width of the converged spots on the wafer in Y-axis directions to keep the converged spots on the wafer within the width of the projected dicing lines on the wafer.

There is provided an illumination system of a navigation device including a light beam shaping optics, and a first light source and a second light source having different characteristics. The light beam shaping optics is used to shape light beams emitted by the first light source and the second light source to illuminate a work surface with substantially identical incident angles and/or beam sizes.

A manipulator device such as a robot arm that is capable of increasing manufacturing throughput for additively manufactured parts, and allows for the manipulation of parts that would be difficult or impossible for a human to move is described. The manipulator can grasp various permanent or temporary additively manufactured manipulation points on a part to enable repositioning or maneuvering of the part.

A diffusion apparatus includes a diffuser, a substrate to which the diffuser is fixed, and a first lens that has a curved surface and a flat surface located on the side opposite the curved surface and is so fixed to the substrate as to face the diffuser. The substrate includes a first recess having a first bottom surface and a first side surface that rises from the first bottom surface and a second recess having a second bottom surface connected to the first side surface and a second side surface that rises from the second bottom surface. The first lens is so disposed in the second recess that the flat surface is in contact with the second bottom surface. The diffuser is fixed to the first bottom surface.

A lens unit includes a positive lens element provided with a convex surface on an incident surface and/or an exit surface; and a lens frame supporting the lens element and being provided with a projection that projects in an inner radial direction from inside the lens frame. The lens frame supports the lens element with the projection fixedly fitted into an outer peripheral portion of the lens element. The projection is provided, on an inner peripheral portion thereof, with a first surface positioned on an incident side in an optical axis direction, a second surface positioned on an exit side in the optical axis direction, and a third surface positioned between the first surface and the second surface. The first, second and third surfaces are tapered surfaces that are respectively inclined relative to the optical axis direction. A method of manufacturing the lens unit is also provided.

A lens positional adjustment device having a lens mounted to a moveable lens body, with the lens body including a bearing member and the lens mounted to the body to enable a laser beam to be projectable at and through the lens. A first voice coil member is mounted to the lens body and is axially offset from the optical axis of the lens. The device also includes a housing having a second voice coil member and a housing bearing with the bearing member of the lens housing being engaged with the housing bearing. The voice coil members are constructed to be one of an electrical coil winding and a magnet that engage to enable movement of the lens body relative to the housing when a current is supplied to the electrical coil winding whereby movement of the lens body relative to the housing adjusts the position of the lens.

A diverged beam optical transmitter is provided that includes a laser source configured to emit a light beam, and one or more lenses. The diverged beam optical transmitter also includes a diffuser placed between the laser source and the one or more lenses, and configured to increase an intrinsic divergence of the light beam and to fill some portion of the one or more lenses such that the light beam is eye safe after the one or more lenses.

Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.