A transmission unit for a LIDAR device for emitting collimated beams into a scanning area. The transmission unit includes at least one beam source for generating beams in the form of a beam bundle, the beam source being designed as a surface emitter or an emitter array, and a transmission optical unit including at least one lens. The transmission unit includes a diaphragm including at least one aperture, which is configured to delimit a cross section of the beam bundle of the generated beams in a horizontal direction and/or a vertical direction. The at least one lens of the transmission optical unit is situated downstream from the diaphragm in the emission direction of the beams. A LIDAR device is also described.

A laser radar includes: a light source including a laser diode; an optical system configured to shape laser light emitted from the laser diode, into a line beam that is long in one direction, and project the line beam to a target area; and a scanner configured to perform scanning with the line beam in a short side direction of the line beam. The laser diode is disposed such that a fast axis of the laser diode extends along a direction corresponding to the short side direction of the line beam.

Disclosed is a LIDAR apparatus for a vehicle including a light-emitting unit configured to generate and emit laser light, a light-receiving unit configured to receive reflected light based on the laser light, at least one electronic component electrically connected to the light-emitting unit and the light-receiving unit, and a case configured to accommodate the light-emitting unit, the light-receiving unit, and the electronic component therein, wherein the case is formed of a metal material, and is in contact with at least one element included in at least one of the light-emitting unit, the light-receiving unit, or the electronic component.

An irradiation optical system includes a uniformizing section and an irradiation lens section. The uniformizing section brings in-plane distribution of light emitted from a light source, close to uniform in-plane distribution. The irradiation lens section diffuses the light in a predetermined direction. The in-plane distribution of the light is brought close to the uniform in-plane distribution by the uniformizing section. The irradiation lens section includes, in order from the light source, a first cylindrical lens and a second cylindrical lens each having negative refractive power in the predetermined direction.

A device for generating a laser line on a work plane includes a first laser light source configured to generate a first raw laser beam, a second laser light source configured to generate a second raw laser beam, and an optical arrangement configured to reshape the first raw laser beam to form a first illumination beam with a first caustic and a first beam profile, and reshape the second raw laser beam to form a second illumination beam with a second caustic and a second beam profile. The first illumination beam and the second illumination beam are directed with overlap on the work plane and define a joint illumination direction. The first beam profile and the second beam profile jointly form the laser line on the work plane. The optical arrangement is configured to position the first caustic and the second caustic offset from one another in the illumination direction.

A transmission unit of a LIDAR device. The transmission unit includes at least one beam source for generating electromagnetic beams having a linear or rectangular cross section, and transmission optics. The transmission unit has an optical homogenizer which is arranged in a beam path of the generated beams in front of or behind the transmission optics and has at least one lens array. A LIDAR device is also described.

The disclosed subject matter relates to a method of manufacturing a light projector module, comprising the steps of: providing a base plate, a light source on the base plate, and a micro-electro-mechanical-system (MEMS) scanning assembly, wherein the base plate has, between the light source and the MEMS scanning assembly, a mounting surface accessible at one side of the base plate; positioning a set of one or more lenses on the mounting surface and adjusting the position of the one or more lenses of the set while the light source is emitting and at least one light beam projected by the light projector module is monitored in a display area; and mounting the one or more lenses of the set in the adjusted position fixedly on the base plate.

Embodiments are disclosed for projection systems with rotatable anamorphic lenses. In an embodiment, an optical projection system comprises: a light source; an optical integrator configured to receive light from the light source and to distribute a uniform pattern of light; a relay lens system including two or more rotatable anamorphic lenses, the anamorphic lenses oriented about an optical axis to transform the uniform pattern of light into an image having a specified aspect ratio; at least one spatial light modulator configured to receive the image and direct a spatially modulated image along an optical path; and at least one projection lens configured to receive the spatially modulated image from the optical path and to project the spatially modulated image onto an image plane with the specified aspect ratio. In a DLP projection system, the relative angle of the two or more rotatable anamorphic lenses is less than 90 degrees to pre-distort the image, resulting in a more rectangular spatially modulated image having the specified aspect ratio.

A light source device includes a light source device includes a first light source configured to emit first light, and a first lens that includes a first surface on which the first light having a first optical axis is incident and a second surface from which a second light having a second optical axis is emitted. An intensity of the first light has a first value on the first optical axis of the first light.

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.