An image display device includes a lens array, and a scanner to two-dimensionally scan the lens array with a light beam for image display, in which each of lenses of the lens array includes a convex surface with different curvatures in two directions orthogonal to the optical axis of the lens and to each other.

A luminaire for providing configurable static lighting or dynamically-adjustable lighting. The luminaire uses an array of focusing elements that act on light provided via a corresponding array of sources or via an edge-lit lightguide. Designs are provided for adjusting the number of distinct beams produced by the luminaire, as well as the angular width, angular profile, and pointing angle of the beams. Designs are also provided for systems utilizing the adjustable luminaires in various applications.

A virtual reality display device, a display device, and a calculation method of a line-of-sight angle are provided. The virtual reality display device includes: a display screen configured to display a picture to a user, at least one infrared light source, and an infrared camera; and the infrared camera is on a side of the display screen away from an eye of the user, and is configured to acquire an eye image of the eye of the user that is illuminated by the at least one infrared light source.

A device includes an illumination device for emitting an illumination beam. The illumination device includes an emitter array including multiple light emitters; and a micro-lens array (MLA) including multiple micro-lenses. The MLA is positioned to receive light emitted from the emitter array. Light from the MLA forms the illumination beam. A first region of the MLA is offset from the emitter array by a first offset amount, and a second region of the MLA is offset from the emitter array by a second offset amount different than the first offset amount.

An imaging system comprises a light field camera (3) for recording a hyperspectral light field (CLF). The system also comprises a light projector (4) for projecting a light field in visible light (PLF). The camera and the projector share a common optical axis. The projector projects a light field (PLF) based on the hyperspectral light field (CLF) captured by the light field camera.

A vehicle display device includes a reflection-type hologram disposed inside a windshield of a vehicle, and a projection device including an image display device outputting a display light and a regulating unit configured to regulate a diffusion angle of the display light, and to project the display light having passed through the regulating unit onto the hologram. The hologram outputs the display light projected from the projection device as diffracted light directed to an eye range of the vehicle, and the regulating unit is configured to regulate the diffusion angle of the display light to an upper limit angle or less such that the display light reflected from the windshield is directed in a direction different from the eye range.

A light ranging system including a shaft having a longitudinal axis; a light ranging device configured to rotate about the longitudinal axis of the shaft, the light ranging device including a light source configured to transmit light pulses to objects in a surrounding environment, and detector circuitry configured to detect reflected portions of the light pulses that are reflected from the objects in the surrounding environment and to compute ranging data based on the reflected portion of the light pulses; a base subsystem that does not rotate about the shaft; and an optical communications subsystem configured to provide an optical communications channel between the base subsystem and the light ranging device, the optical communications subsystem including one or more turret optical communication components connected to the detector circuitry and one or more base optical communication components connected to the base subsystem.

Disclosed herein are systems and methods for using microlens arrays for parallel micropatterning of features. In some embodiments, a system includes a laser that emits a laser beam, a beam homogenizer configured to shape the laser beam into a shaped laser beam having a beam profile, and a lenslet array. The beam homogenizer shapes the laser beam such that at least a portion of the beam profile is substantially uniform in power. The lenslets of the lenslet array have the same shape and each receive a respective portion of the shaped laser beam to output a plurality of laser sub-beams. The plurality of laser sub-beams can be directed toward one or more layers of material to generate or modify a plurality of features on the one or more layers in parallel.

A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.

A metrology system includes an illumination source configured to generate an illumination beam, one or more illumination optics configured to direct the illumination beam to a sample, one or more collection optics configured to collect illumination emanating from the sample, a detector, and a hyperspectral imaging sub-system. The hyperspectral imaging sub-system includes a dispersive element positioned at a pupil plane of the set of collection optics configured to spectrally disperse the collected illumination, a lens array including an array of focusing elements, and one or more imaging optics. The one or more imaging optics combine the spectrally-dispersed collected illumination to form an image of the pupil plane on the lens array. The focusing elements of the lens array distribute the collected illumination on the detector in an arrayed pattern.