Light from an array of laser light sources are spread to cover the modulating face of a DMD or other modulator. The spread may be performed, for example, by a varying curvature array of lenslets, each laser light directed at one of the lenslets. Light from neighboring and/or nearby light sources overlap at a modulator. The lasers are energized at different energy/brightness levels causing the light illuminating the modulator to itself be modulated (locally dimmed). The modulator then further modulates the locally dimmed lights to produce a desired image. A projector according to the invention may utilize, for example, a single modulator sequentially illuminated or separate primary color modulators simultaneously illuminated.

This disclosure relates to the use of variable-pitch light-emitting devices for display applications, including for displays in augmented reality, virtual reality, and mixed reality environments. In particular, it relates to small (e.g., micron-size) light emitting devices (e.g., micro-LEDs) of variable pitch to provide the advantages, e.g., of compactness, manufacturability, color rendition, as well as computational and power savings. Systems and methods for emitting multiple lights by multiple panels where a pitch of one panel is different than pitch(es) of other panels are disclosed. Each panel may comprise a respective array of light emitters. The multiple lights may be combined by a combiner.

A method for controlling a lighting device of a motor vehicle including at least one lighting module having a plurality of light sources, each of the light sources being designed to emit a luminous pixel, and a controller able to selectively control each of the light sources by applying thereto an electrical signal having a parameter of a value determined for the emission of a luminous pixel of given brightness.

A light projection system comprising a light modulator that comprises a plurality of pixels each capable of selectively directing a corresponding modulatable amount of light, and a processor coupled to the light modulator to control the amount of light output from each of the plurality of pixels. The processor is configured to control the light modulator to form a computer generated hologram (CGH) wavefront from the light modulator corresponding to an image to be produced in the far field. The processor is also configured to control the light modulator to selectively direct the CGH wavefront. The light modulator may comprise an angular light modulator (ALM) comprising the plurality of pixels, each of the plurality of pixels having an OFF state and an ON state, the ALM arranged to direct the amounts of light in the direction as the pixels transition between the ON state and the OFF state.

The present disclosure discloses an optical projection imaging system and method. Through additionally installing an angle controller on a Light Emitting Diode (LED) chip, and through adjusting and controlling an emitting angle of light emitted by the LED chip every preset time period by the angle controller, different images projected in different emitting angles are obtained, and a whole image is spliced by the different images projected in the different emitting angles and projected to a projection screen. In addition, the present disclosure further discloses an optical projection imaging method.

Disclosed are a light source system and a control method thereof, as well as a display device and a control method thereof. The light source system includes: an array light source, including M light emitting bodies with independently adjustable brightness; an optical switch disposed on an optical path of light outputted from the array light source, for guiding illumination light emitted by the M light emitting bodies to N sub-regions of a preset illumination region; and a control device for controlling the optical switch to adjust, at a preset frame rate, a direction of the illumination light emitted from each of at least part of the M light emitting bodies, and guiding the illumination light emitted from each of the at least part of the light emitting bodies to a sub-region different from that for one or more image frames previous to the current image frame.

This disclosure relates to the use of variable-pitch light-emitting devices for display applications, including for displays in augmented reality, virtual reality, and mixed reality environments. In particular, it relates to small (e.g., micron-size) light emitting devices (e.g., micro-LEDs) of variable pitch to provide the advantages, e.g., of compactness, manufacturability, color rendition, as well as computational and power savings. Systems and methods for emitting multiple lights by multiple panels where a pitch of one panel is different than pitch(es) of other panels are disclosed. Each panel may comprise a respective array of light emitters. The multiple lights may be combined by a combiner.

This disclosure relates to the use of variable-pitch light-emitting devices for display applications, including for displays in augmented reality, virtual reality, and mixed reality environments. In particular, it relates to small (e.g., micron-size) light emitting devices (e.g., micro-LEDs) of variable pitch to provide the advantages, e.g., of compactness, manufacturability, color rendition, as well as computational and power savings. Systems and methods for emitting multiple lights by multiple panels where a pitch of one panel is different than pitch(es) of other panels are disclosed. Each panel may comprise a respective array of light emitters. The multiple lights may be combined by a combiner.

A system for generating multi-depth image sequence comprising a modulation array. The modulation array comprising a plurality of light modulators which may shift light incident upon the modulators by a number of degrees. The plurality of light modulators may shift light in concert according to a modulation shift pattern. The modulation shift pattern can be configured to focus incident light to a voxel or to form a 3-D image. One or more modulation shift patterns can be changed or cycled through to raster one or more image objects in one or more image depth planes.

A projection display unit includes a first spatial light modulator that first light enters; and an integrator optical system that second light and light passing through the first spatial light modulator enter.