A laser exposure system includes an electrically-controlled diffraction grating which can be controlled to be in a first state where the incident light beam is undiffracted and a second state where the incident light beam is diffracted into a plurality of light beams including a zero-order light beam and first and second diffracted light beams. An aperture structure which passes the first and second diffracted light beams while blocking the zero-order light beam. A polarization rotator rotates a polarization state of the second diffracted light, and a polarization beam combiner combines the first diffracted light beam and the polarization-rotated second diffracted light beam onto a common path forming a combined light beam. An optical element focuses the combined light beam onto an imaging medium. A controller controls the state of the electrically-controlled diffraction grating in accordance with pixel data to form a printed image.

An apparatus comprising a switchable optical filter comprising a layer of switchable material, the switchable material comprising a photochromic/thermochromic, a photochromic/photochromic, or a photochromic/electrochromic compound; a first light source providing light of a wavelength that causes the switchable material to transition from a faded state to a dark state, or a dark state to a faded state; and a switch for controlling activation of the first light source

Provided a two-dimensional photonic crystal device in which are inserted three waveguides and one resonant cavity by the creation of linear and local defects. Due to the photonic band gap related to the photonic crystal, electromagnetic signals are confined to the interior of waveguides and resonant cavity. By exciting dipole modes in the resonant cavity, with orientation that depends on the intensity of the applied DC magnetic field, the present circulator device can provide the nonreciprocal transmission of signals in the clockwise and counterclockwise directions. It can fulfill the isolation function and it is fork-shaped, providing greater flexibility in the design of integrated optical communication systems.

A multi-channel optical imaging and stimulation system includes a light source to deliver light beams into a light guide. Different light beams are coupled into different spatial modes supported by the light guide. The light guide includes multiple segments, each of which defines a window to couple a specified group of spatial modes out of the light guide to illuminate or stimulate a target. Light reflected, scattered, or emitted by the target is also collected by the windows in the light guide. The light collected by different windows is detected by different pixels of a detector, thereby creating a correspondence between the pixel location and the spatial location of site at which the light is collected. An image of the target is then reconstructed based on this correspondence.

The inventive devices may be produced in various form factors including single display element form factors, dual element form factors, or form factors that incorporate one or more flexible panels instead of hinged flat panels. The devices also include sensors to determine the device configuration. The devices may be placed into various configurations including an upright laptop, stand, tent, small tablet, large tablet, dual monitor display, or book configuration. These devices may change display modes based on the current device configuration, the current task being performed on the device, and/or spatial context as determined by any one of various environmental and configuration sensors. Different display modes include normal, presentation, sharing, augmented reality, tracing, scanning, unobstructed, ambient light, 2.5D/3D modes. Applications can be written that take specific advantage of the inventive display elements, display modes, device form factors, and device configurations.

Provided is a windshield for a low speed vehicle such as a golf car. The windshield comprises a hinge and a top mount allowing the windshield to fold up for improved upper body safety and improved air circulation.

A display device includes an electronic paper display imageable by receiving charges on an imaging surface of the electronic paper display, a ground electrode, and a ground access stripe. The ground electrode is opposite to the imaging surface of the electronic paper display. The ground access stripe is on a surface of the display device and electrically coupled to the ground electrode.

In accordance with some embodiments of the disclosed subject matter, a display device, a display apparatus, a liquid metal material, and related fabricating molds, methods, and apparatus are provided. In some embodiments, the disclosed subject matter provides a display device, comprising: a first substrate; a second substrate; and a liquid metal materiel layer sandwiched by the first substrate and the second substrate; wherein the liquid metal materiel layer comprises: a base fluid, and a plurality of liquid metal particles dispersed in the base fluid.

The display includes a transparent display (TD) element or layer such as at least one Transparent Organic Light Emitting Diode (TOLED) element and at least one active shutter (AS) element or layer such as a liquid crystal shutter. The AS may be opaque or transparent. The TD may be transparent or display or emit light in mixtures of color. Black may be displayed by a TD pixel by having the TD be transparent and turning an AS opaque. Each display is composed of elements that can have many states. The states can be used to create different display modes. Devices with these displays can have many form factors and configurations. These devices may change display modes based on spatial context as determined by any one of various environmental and configuration sensors.

An apparatus is disclosed that includes a switchable optical filter having a layer of switchable material; a light source providing light of a wavelength that causes the switchable material to transition from a faded state to a dark state, or a dark state to a faded state; and a switch for controlling activation of the light source.