An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and at least three damping materials. The movable portion is configured to connect an optical member that has an optical axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The damping materials are located on an imaginary plane, and the imaginary plane is parallel to the optical axis.

A head-mounted display apparatus for a viewer has an optical imager having a display generator that is energizable to emit image-bearing light in a first direction and a prism that is configured to redirect the generated light in a second direction that is toward the viewer's eye and orthogonal to within +/−30 degrees relative to the first direction. A housing is configured to form a sealed chamber that encloses at least the display generator of the optical imager and to expose at least a portion of the prism extended from the sealed chamber. A releasable coupling formed onto a cover element of the sealed chamber is configured to cooperate with a mounting fixture formed on headgear worn by the viewer for mounting the housing and suspending the exposed portion of the prism into a field of view of the viewer's eye.

A laser system includes: A. a solid-state laser apparatus configured to output a pulse laser beam having light intensity distribution in a Gaussian shape that is rotationally symmetric about an optical path axis; B. an amplifier including a pair of discharge electrodes and configured to amplify the pulse laser beam in a discharge space between the pair of discharge electrodes; and C. a conversion optical system configured to convert the light intensity distribution of the pulse laser beam output from the amplifier into a top hat shape in each of a discharge direction of the pair of discharge electrodes and a direction orthogonal to the discharge direction.

An AR headset optical system that includes a wide field of view, a waveguide or lightguide eyepiece, and several display sources. The augmented reality headset (ARHS) utilizes a display system that incorporates a projection engine containing two or more displays. The displays are each associated with a projection system, the displays and projection systems are aligned with each other to create a field-of-view (FOV) of at least 60 degrees.

A method for material processing of a workpiece includes radiating a pulsed raw laser beam into an optical beam shaping system in order to form a quasi-non-diffractive laser beam with a focal zone extending in a longitudinal direction for the material processing of the workpiece. The optical beam shaping system is configured to impose a phase onto a beam cross section of the raw laser beam for forming phase-imposed laser radiation. The method further includes focusing the phase-imposed laser radiation into the workpiece so that the quasi-non-diffractive laser beam is formed and the focal zone has an intensity distribution that is adjustable along the longitudinal direction. The phase imposed on the beam cross section of the raw laser beam is set so that the intensity distribution of the quasi-non-diffractive laser beam in the focal zone is at least approximately constant in the longitudinal direction.

An image capturing device is provided. The image capturing device includes an aperture unit, an image sensor, and a first lens unit. The first lens unit includes a first light-entering end and a first light-exiting end for focusing an external light on the image sensor. The aperture unit, the first lens unit, and the image sensor are sequentially arranged in a travel direction of the external light.

Provided is a fixing device for line laser output. The device includes a laser beam expander having: a laser via hole defined in an axial direction thereof; an emitter embedding groove disposed at a laser entry end of the laser via hole, the emitter embedding groove having a peripheral wall coaxial with a peripheral wall of the laser via hole, and a bottom wall perpendicular to the peripheral wall of the laser via hole; and a Powell lens embedding groove disposed at a laser exit end of the laser via hole, the Powell lens embedding groove having a peripheral wall coaxial with the peripheral wall of the laser via hole, and a bottom wall perpendicular to the peripheral wall of the laser via hole.

A lighting device comprising a plurality of lighting modules arranged concentrically about an optical axis is disclosed wherein the plurality of lighting modules emit light in at least one of a plurality of wavelength ranges (UV, visible (e.g., blue, green, yellow, orange, red, white, etc.), IR) and are arranged at a non-parallel angle to an optical axis of the lighting device, wherein the emitted light is directed towards a lens system that focuses the light onto a viewing point. A second lighting device is disclosed, wherein the lighting device comprises a plurality of lighting modules arranged concentrically about an inner circumference of the lighting device, wherein the plurality of lighting modules emit light in at least one of a plurality of wavelength ranges (UV, visible (e.g., blue, green, yellow, orange, red, white, etc.), IR) onto a lighting director device that redirects the emitted light toward a lens system that focuses the light onto a viewing point.

A 3D object information capturing system is provided, including a camera module, a distance measuring module, and a processing module. The camera module captures image information of an object, and the distance measuring module captures distance information of the object. The processing module receives the image information and the distance information respectively from the camera module and the distance measuring module, and constructs a 3D model of the object according to the image information and the distance information.

An example device may include a light source, an optical element, and, optionally, an encapsulant layer. A light beam generated by the light source may be received by the optical element and redirected towards an illumination target, such as an eye of a user. The optical element may include a material, for example, with a refractive index of at least approximately 2 at a wavelength of the light beam. The light source may be a semiconductor light source, such as a light-emitting diode or a laser. The optical element may be supported by an emissive surface of the light source. Refraction at an exit surface of the optical element, and/or within a metamaterial layer, may advantageously modify the beam properties, for example, in relation to illuminating a target. In some examples, the light source and optical element may be integrated into a monolithic light source module.