The disclosure relates to a device for providing a multi-colored light beam for a projector. The device comprises a first light source, a second light source, a waveguide element, a beam forming device and a structure element. The waveguide element forms a first waveguide for guiding light from the first light source, a second waveguide for guiding light from the second light source and a coupling out region for coupling light out of the first waveguide and the second waveguide. The beam forming device is designed to form the multi-colored light beam using the light coupled out of the coupling out region. The first light source, the second light source, the waveguide element and the beam forming device are arranged on the structure element.

A display apparatus configured to display an image corresponding to an image signal includes a receiver configured to receive a first command irregularly transmitted from outside, a transmitter configured to transmit the first command and a second command for requesting an operation of the image signal for each frame to another display apparatus, and a controller configured to cause the transmitter to transmit the first command and the second command to the other display apparatus for each frame.

A scanning light imaging device for continuously pseudo randomly scanning patterns of light in a beam onto a remote surface to achieve spatio-temporal super resolution for finding remotely located objects. The scanning light imaging device employs a scanner to project image beams of visible or non-visible light and/or tracer beams of non-visible light onto a remote surface or remote object to detect reflections. The device employs a light detector to sense at least the reflections of light from one or more of the image beams or the tracer beams incident on the remote surface or remote object. The device employs the sensed reflections of light beams to predict the trajectory of subsequent scanned beams in a pseudo random pattern and determine up to a six degrees of freedom position for the remote surface or remote object.

The invention relates to an image generating device having a radiation source for one or more output beams having Gaussian radiation characteristic, in particular a laser beam source, having a device for generating Bessel-like beams from one or more output beams, having a controllably drivable MEMS scanner, wherein the Bessel-like beams are directed onto the MEMS scanner and are deliberately deflected by the MEMS scanner to generate an image, and having at least one display body at least partially transmissive to the Bessel-like beams, onto which the Bessel-like beams are guided by the MEMS scanner.

A projection system includes a projection device that projects drawings individually onto a plurality of work spots in a work site. The projection device includes a driver that changes an orientation of the projection device. When drawings are individually projected onto a first work spot and a second work spot in a stated sequence, and the second work spot is outside a projection angle that is projectable by the projection device, the driver changes the orientation of the projection device to include the second work spot within the projection angle after work at the first work spot is finished. The first work spot and the second work spot are included in the plurality of work spots.

A scanning projector display includes a plurality of light engines coupled to a MEMS scanner. Each light engine includes a light source subassembly for providing a diverging light beam optically coupled to a collimator for collimating the diverging light beam. In operation, the collimated light beams of the plurality of light engines impinge onto the tiltable reflector at different angles of incidence. A controller may be operably coupled to the light source subassembly of each light engine of the plurality of light engines and the MEMS scanner for tilting the tiltable reflector of the MEMS scanner. The controller is configured to energize the light source of each light engine in coordination with tilting the tiltable reflector for displaying the image.

Display systems, such as near eye display systems or wearable heads up displays, may include a laser projector having an optical switch assembly disposed an at input to an optical scanner of the laser projector. The optical switch assembly includes at least one optical switch, and a controller selectively modifies the orientation of each optical switch to selectively change an angle at which laser light is directed onto a scan mirror of the optical scanner. Changing this angle shifts the scan region over which the scan mirror scans the laser light and, relatedly, shifts a region of a field of view of the display. In some embodiments, the controller is configured to modify the optical switch orientation(s) to correct non-idealities in the angle of the laser light.

A display device includes: a light source unit that outputs laser light; a light-guide optical system that forms a plurality of optical paths of the laser light; an optical path switch element that switches an optical path of the laser light to any one of the plurality of optical paths; an optical member that forms a single optical path in a subsequent stage of the plurality of optical paths; and a projection mirror that forms a projection image to be projected on a screen by scanning the laser light that passed through the single optical path. The plurality of optical paths includes an optical path for low luminance and an optical path for high luminance which make the laser light have different luminance. The optical path switch element is disposed on an optical path between the light source unit and the projection mirror.

In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs

The present disclosure generally relates to micro-ribbon structures used in display systems and methods of fabrication thereof. Individual fibers are made using an extrusion process whereby a core surrounded by an ink portion is extruded to create an individual fiber. The ink portion may include both an inner portion that is in contact with the core and an outer shell portion over the inner portion. The individual fibers are then bonded to adjacent fibers to create micro-ribbon structures. The micro-ribbon structures are of one color and spaced from adjacent micro-ribbon structures of a different color by a light blocking fiber. The micro-ribbon structures are each bonded to the light blocking fiber to create the color stripes used in the display system.