An optical arrangement is provided for converting an input laser beam into a linear output beam propagating along a propagation direction and having in a working plane and a linear beam cross section extending along a line direction and having a non-vanishing intensity. The optical arrangement includes a reshaping optical unit having an input aperture for receiving the input laser beam and an output aperture, and is configured to convert the input laser bean into a beam packet having a multiplicity of beam segments that emerges through the output aperture. In addition, a homogenization optical unit is included having a first lens array and a second lens array arranged downstream of the first lens array in the beam path, the homogenization optical unit configured to mix different beam segments of the beam packet along the line direction. A transformation lens is configured such to superpose the mixed beam segments so as to form the linear output beam, and a displacement device is configured to displace the second lens array relative to the first lens array.

A light source apparatus includes a first light source that includes a plurality of first light emitters arranged in a row along a first direction and emits a first luminous flux, a second light source that includes a plurality of second light emitters arranged in a row along a second direction and emits a second luminous flux in a direction in which the first luminous flux is emitted, and a combiner that combines the first and second luminous fluxes with each other to produce combined light and outputs the combined light to an irradiated region. The combined light has a combined light intensity distribution in which a first region where a light intensity of the first luminous flux is maximized and a second region where a light intensity of the second luminous flux is maximized do not overlap with each other.

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 laser beam combining device includes an emission optical system that emits a plurality of circular laser beams propagated coaxially and having mutually different wavelengths, and a diffractive optical element that is concentric and diffracts the plurality of circular laser beams. The diffractive optical element diffracts the plurality of circular laser beams in accordance with the wavelengths of the circular laser beams, such that local diffraction angles of diffracted light of the plurality of circular laser beams incident at mutually different local incidence angles are equal to each other.

A light-source device, an image projection apparatus, and a display device. The light-source device includes a light source to emit light, an optical element having a lens array on one side or both sides of which a plurality of lenses are arrayed with distance from each other, the distance between a pair of vertices of an adjacent pair of the plurality of lenses of the optical element being equal to or less than one-quarter of width of light flux of the light incident on the optical element, and a wavelength conversion element to convert a wavelength of the light emitted from the light source and passed through the optical element. An image projection apparatus includes the light-source device, a light mixing element to mix the light emitted from the light-source device to uniformize the light, and an illumination optical system to emit the light uniformized by the light mixing element.

A dot pattern projector includes a light source array, a lens and a diffracting unit. The light source array includes a plurality of light sources that emit light beams. The lens is configured to collimate the light beams. The diffracting unit is configured to diffract the collimated light beams thereby to project an illumination pattern, wherein the illumination pattern is formed by overlapping multiple dot patterns that are projected by different light sources or interlacing multiple dot patterns that are projected by different light sources.

A near-eye display device comprises a pupil-expansion optic, first and second lasers, a drive circuit coupled operatively to the first and second lasers, a beam combiner, a spatial light modulator (SLM), and a computer. The first and second lasers are configured to emit in respective first and second wavelength bands. The beam combiner is configured to geometrically combine emission from the first and second lasers into a collimated beam. The SLM is configured to receive the collimated beam and to direct the emission in spatially modulated form to the pupil-expansion optic. The computer is configured to parse a digital image, trigger the emission from the first and second lasers by causing the drive circuit to drive current through the first and second lasers, and control the SLM such that the spatially modulated form of the emission projects an optical image corresponding to the digital image.

A line pattern projector includes a light source array, a lens and a diffractive microlens array. The light source array includes a plurality of light sources that emit light beams, wherein the plurality of light sources are arranged along a first direction. The lens is configured to collimate the light beams. The diffractive microlens array (MLA) is configured to diffract the collimated light beams thereby to project an illumination pattern, wherein a lens pitch of the diffractive MLA with respect to the first direction is wider than a lens pitch of the diffractive MLA with respect to a second direction. The illumination pattern is formed by overlapping multiple dot patterns that are projected by the light sources; and the illumination pattern includes a plurality of line light patterns in the first direction.

The present disclosure relates to a light source apparatus including a laser light source that outputs a laser beam and a collimator system that parallelizes the laser beam. The collimator system includes three lens groups. A first group includes a first anamorphic lens having negative power in a first direction. A second group includes a second anamorphic lens having positive power in a second direction perpendicular to the first direction. A third group includes a third anamorphic lens having positive power in the first direction.