A waveguide display includes a source assembly, an output waveguide, and a controller. The source assembly includes a light source and an optics system. The light source includes source elements arranged in a 1D or 2D array that emit image light. The optics system includes a scanning mirror assembly that scans the image light to particular locations based on scanning instructions. The output waveguide receives the scanned image light from the scanning mirror assembly and outputs an expanded image light. In some embodiments, the waveguide display includes a source waveguide and the 1D array of source elements. The source waveguide receives a conditioned image light from the source assembly. The controller generates the scanning instructions and provides the scanning instructions to the scanning mirror assembly. In some embodiments, the controller provides the scanning instructions to an actuator assembly of the source waveguide.

A system for assisting sharing of information includes circuitry to: input a plurality of sentences each representing a statement made by one of a plurality of users, the sentence being generated by speaking or writing during a meeting or by extracting from at least one of meeting data, email data, electronic file data, and chat data at any time; determine a statement type of the statement represented by each one of the plurality of sentences, the statement type being one of a plurality of statement types previously determined; select, from among the plurality of sentences being input, one or more sentences each representing a statement of a specific statement type of the plurality of types; and output a list of the selected one or more sentences as key statements of the plurality of sentences.

An apparatus includes a backlight, a color filter disposed in front of the backlight along a viewing direction, wherein the color filter includes a plurality of pixels repeating at a first spacing along a first axis. The apparatus further includes a lenticular layer disposed in front of the backlight, the lenticular layer including a section of material having a first index of refraction, a first, substantially flat side, and a second side defining a lenticularly patterned cross section along the first axis, the lenticularly patterned cross section including lens elements repeating at a second spacing and directing light originating from the backlight in two or more directions.

A method of Lissajous scanning includes transmitting a plurality of light pulses at a plurality of time moments based on a trigger signal; driving about a first rotation axis at a first driving frequency (f1) according to a first driving signal and driving about a second rotation axis at a second driving frequency (f2) according to second driving signal; controlling the first and second driving signals to generate a Lissajous scanning pattern according to a predefined frame rate (FR); selecting the first and second driving frequencies such that the frame rate is a greatest common divisor thereof and such that they satisfy the following equation: f2−f1=(2*N+1)*FR; determining the plurality of time moments; and generating the trigger signal based on the determined plurality of time moments, wherein the plurality of time moments (t.sub.i) are determined according to the following equation:

[00001]$t_i=\frac{2i+1}{8*\mathrm{FR}*F_1{F}_2},\mathrm{where}:F_1=\frac{f_1}{\mathrm{FR}},F_2=\frac{f_2}{\mathrm{FR}},i=0,1,2.Math.\left(4F_1{F}_2-1\right).$

A projection display device includes an image display control unit configured to perform a first display control for generating image data in accordance with information received from a control unit that controls the vehicle, and a second display control for generating image data in accordance with the measurement information acquired from the information measuring device without passing through the control unit, and a warning determination unit, wherein the image display control unit performs the second display control when the warning determination unit determines that the warning is necessary, and performs the first display control when the warning determination unit determines that the warning is not necessary, in a first mode in which driving of the vehicle is performed in accordance with an internally generated instruction or an instruction externally and wirelessly received, the image display control unit performs at least the second display control without passing through the control unit.

An optical device comprising may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the wedge-shaped light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

The techniques disclosed herein provide methods, devices, and systems to compensate the drive waveform to a slow-scan mirror in a laser beam scanning (LBS) display device. The slow-scan controller generates the drive waveform, which is combined with feedback and coupled to the input of a notch filter in the control loop. Ripple in the slow-scan mirror trajectory, which occurs as a consequence of mismatches between the notch frequency of the notch filter and the resonance of the slow-scan mirror, is effectively suppressed in real time by an adaptive notch compensator. Consequently, the described compensation scheme allows for relaxed notch filter design criteria with high tolerance and mitigation of ripple is achieved at reduced cost. The parameters, logic and blocks of the adaptive notch compensator scheme may be time-domain or frequency domain solutions that are implemented, in hardware, software or combinations thereof.

An optical device may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the wedge-shaped light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

In one embodiment, a computing system may receive a target color and a propagated error for a pixel location. The system may determine an error-modified target color for the pixel location based on the received target color and the propagated error. The system may identify, based on a location of the error-modified target color in a three-dimensional color space, a subset of pre-determined colors in the three-dimensional color space. The error-modified target color may correspond to a weighted combination of the subset of pre-determined colors. The system may determine a pixel color for the pixel location based on the subset of pre-determined colors and respective weights associated with the subset of pre-determined colors. The system may determine, based on the pixel color, driving signals for light-emitting elements associated with the pixel location. The system may output the driving signals to control the light-emitting elements associated with the pixel location.

A display system comprises a current source, pulse circuitry, a pulsed laser, control circuitry, and a display surface. The pulse circuitry outputs a first pulse of electrical current based upon electrical current emitted by the current source. The pulsed laser emits first light based upon the first pulse, wherein luminance of the first light is based upon a first amplitude of the first pulse. The control circuitry generates an estimate of pulse history effects on second light that is to be emitted by the pulsed laser, the estimate is generated based upon a parameter of the first pulse and a desired luminance of the second light. The control circuitry causes the pulse circuitry to output a second pulse of electrical current based upon the estimate. Based upon the second pulse, the pulsed laser emits second light with the desired luminance.