A method for separating a workpiece includes providing ultrashort laser pulses using an ultrashort pulse laser, and introducing material modifications into the workpiece along a separation line using the ultrashort laser pulses. The workpiece includes a transparent material. The method further includes separating the material of the workpiece along the separation line. The laser pulses form a laser beam that is incident onto the workpiece at a work angle. An optical aberration of the laser pulses during a transition into the material of the workpiece is reduced by an aberration correction device. The laser beam has a non-radially symmetric transverse intensity distribution, with the transverse intensity distribution appearing elongate in a direction of a first axis in comparison with a second axis perpendicular to the first axis.

Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are external to the camera lens and that emit visible light in an encrypted pattern are described. The device may process captured frames to detect the encrypted pattern; if the encrypted pattern cannot be detected, recording is disabled. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.

Disclosed embodiments include an energy directing device having one or more energy relay elements configured to direct energy from one or more energy locations through the device. In an embodiment, surfaces of the one or more energy relay elements may form a singular seamless energy surface where a separation between adjacent energy relay element surfaces is less than a minimum perceptible contour. In disclosed embodiments, energy is produced at energy locations having an active energy surface and a mechanical envelope. In an embodiment, the energy directing device is configured to relay energy from the energy locations through the singular seamless energy surface while minimizing separation between energy locations due to their mechanical envelope. In embodiments, the energy relay elements may comprise energy relays utilizing transverse Anderson localization phenomena.

A portable lighting apparatus is provided with a gallium-and-nitrogen containing laser diode based white light source combined with an infrared illumination source which are driven by drivers disposed in a printed circuit board assembly enclosed in a compact housing and powered by a portable power supply therein. The portable lighting apparatus includes a first wavelength converter configured to output a white-color emission and an infrared emission. A beam shaper may be configured to direct the white-color emission and the infrared emission to a front aperture of a compact housing of the portable lighting apparatus. An optical transmitting unit is configured to project or transmit a directional light beam of the white light emission and/or the infrared emission for illuminating a target of interest, transmitting a pulsed sensing signal or modulated data signal generated by the drivers therein. In some configurations, detectors are included for depth sensing and visible/infrared light communications.

An optical system includes at least one optical element which has an optically effective surface and which is designed for an operating wavelength of less than 30 nm. The optical system also includes a heating arrangement for heating this optical element and comprising a plurality of IR emitters for irradiating the optically effective surface with IR radiation. The IR emitters are activatable and deactivatable independently of each other to variably set different heating profiles in the optical element. The optical system further includes at least one beam shaping unit for shaping the beam of the IR radiation steered onto the optically effective surface by the IR emitters. The optical system also includes a multi-fiber head comprising a multi-fiber connector for connecting optical fibers. IR radiation from a respective one of the IR emitters is suppliable by way of each of these optical fibers.

A light source module configured to provide a detection light beam and including a plurality of light-emitting elements, a light spot shaping element, and a micro-mirror element, and a lidar device having a light-emitting end and comprising the light source module are provided. The light-emitting elements are configured to provide light beams. The light spot shaping element has a plurality of light spot shaping regions configured with different deflection angles and light beam convergence capabilities corresponding to the light beams. The micro-mirror element is located on a transmission path of the light beams from the light spot shaping element. A second light beam width of each light beam corresponds to an incidence angle of each light beam incident on a reflecting surface of the micro-mirror element, such that a light spot dimension of each light beam on the reflecting surface substantially coincides with a dimension of the reflecting surface.

Apparatuses for additive manufacturing producing an annular beam are disclosed herein. An apparatus in accordance with an aspect of the present disclosure comprises an energy beam source configured to generate an energy beam and a beam shaping applicator configured to shape the energy beam into a geometry and apply the shaped energy beam to an additive manufacturing material, wherein the geometry includes a two-dimensional shape with a perimeter and a hole in the two-dimensional shape within the perimeter.

Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are integrated in a device's camera and that emit visible light through the camera lens aperture are described. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.

Holographic energy directing systems may include a waveguide array and a relay element. Disclosed calibration approaches allows for mapping of energy locations and mapping of energy locations to angular direction of energy as defined in a four-dimensional plenoptic system. Distortions due to the waveguide array and relay element may also be compensated.

An IR illuminator for providing infrared radiation for a digital camera having a camera lens with a camera field of view, including equidistant mounting substrates arranged adjacent to the digital camera, IR LEDs mounted to each of the mounting substrates, and a cover lens positioned to cover the IR LEDs. The shape of the free form cover lens is such that an emission pattern of radiation is emitted without entering into the camera lens and the emission pattern of IR radiation has an asymmetric field of view. Two IR illuminators adjacent to the camera are tilted at an angle from the camera optical direction. The cover lens may be a Fresnel lens, or include a diffractive layer or a collimator to shift radiation emitted from the LED to an asymmetric distribution.