A simple optical layout for a grazing angle probe mount that allows coupling to a mid-infrared (MIR), laser-based spectrometer is provided. The assembly enables doing reflectance measurements at high incident angles. In the case of optically thin films and deposits on MIR reflective substrates, a double pass effect, accompanied by absorption by the chemicals or biological samples deposited in an Infrared Reflection-Absorption Infrared Spectroscopy (IRRAS) modality is achieved. The optical system includes a probe that allows the passage of MIR light through the same sampling area twice. Initially, the infrared beam produces a spot on the surface, and then the light is returned in back reflection to the sample surface producing a new little slightly larger spot onto the selfsame position.

An optical arrangement converts a laser beam into a line-type beam having a line-type beam cross-section that extends along a line direction with a non-vanishing intensity. The arrangement has: reshaping optics having: an input aperture through which the laser beam is radiated in; and an elongate output aperture, the reshaping optics being configured such that the laser beam radiated in is converted into a beam packet with beam segments that emerge through the output aperture; homogenization optics, which contribute to the conversion of the beam packet into the line-type output beam, and by which different beam segments are mixed and superposed along the line direction; and redirection optics configured to redirect the laser beam such that an incidence position/direction of laser beam on the input aperture is changed in dependence on time.

Disclosed are a lidar, and a detection method for the lidar. The lidar includes a plurality of laser transceiver module groups, each configured to be integrated with at least one laser transmitting end and at least one laser receiving end, and a scanning module. The plurality of laser transceiver module groups are arranged in a distributed manner relative to the scanning module, and an at least partially stitched field of view of the lidar is formed by sub-fields of view correspondingly formed by the plurality of laser transceiver module groups. Further disclosed are a lidar and a manufacturing method for the lidar. The lidar includes a laser transmitting end, a laser receiving end, a scanning module and an isolation mechanism. A scanning component of the scanning module is constructed as a rotatable plate-shaped double-faceted mirror or a rotatable prism.

In one example, an on-mirror adaptive optics system may include a substrate including a deformable surface, a controller and a plurality of pockets defined in a substrate. Each of the pockets may include a an electrooptical sensor and an actuator. The controller may be communicatively coupled to the electrooptical sensor and the actuator. The controller may be configured to generate control voltages based on signals received from the electrooptical sensor to deform a portion of the deformable surface proximate a corresponding pocket of the plurality of pockets.

An illuminator for a display panel includes a light source for providing a light beam and a lightguide coupled to the light source for receiving and propagating the light beam along the substrate. The lightguide includes an array of out-coupling gratings that runs parallel to the array of pixels for out-coupling portions of the light beam from the lightguide such that the out-coupled light beam portions propagate through the substrate and produce an array of optical power density peaks at the array of pixels due to Talbot effect. A period of the array of peaks is an integer multiple of a pitch of the array of pixels.

A laser soldering system includes a laser source module, a polarization adjusting assembly, a temperature sensor, and a controller. The laser source module is configured to emit a laser beam. The polarization adjusting assembly includes a plurality of polarization elements and at least one stepping motor. The polarization elements are configured to split the laser beam into a Gaussian beam and a ring-shaped beam. The Gaussian beam illuminates the first element, and the ring-shaped beam is illuminates the second element. The stepping motor is configured to adjust a size of the ring-shaped beam. The temperature sensor is configured to monitor temperatures of the first element and a temperature of the second element. The controller is electrically connected to the temperature sensor, the laser source module, and the polarization adjusting assembly.

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 beam intensity uniformizing element includes an optical base, a first lens array disposed at a front surface of the optical base; and a second lens array disposed at a back surface of the optical base. The first lens array includes first mold lens cells arranged in different directions along the front surface of the optical base. The first mold lens cells have surfaces constituting the front surface of the optical base. The surfaces of the first mold lens cells have first linear marks thereon extending in a first direction. The second lens array includes second mold lens cells arranged in different directions along the back surface of the optical base. The second mold lens cells have surfaces constituting the back surface of the optical base. The surfaces of the second mold lens cells have second linear marks thereon extending in a second direction different from the first direction. This element suppresses generation of an interference pattern and reduces cost.

A display device includes: a light source having a light emitting surface configured to emit light, a light transmitting layer covering the light source and having a light exit surface configured to receive the light emitted from the light emitting surface, a first metasurface formed between the light emitting surface and the light transmitting layer and configured to concentrate the light emitted by the light source in a first direction along the light emitting surface, and a second metasurface formed on the light exit surface and configured to split the light received by the light exit surface in the first direction.

A system with a deformable membrane for speckle mitigation. In some embodiments, the system includes a laser for producing laser light; a photodetector for detecting the laser light after interaction of the laser light with a sample; and a silicon deformable membrane, for modulating the phase of the laser light.