Abstract: A projection lens module includes a lens assembly, a reflector arranged beside the lens assembly, a housing assembly covering the reflector, and a buffer. The reflector includes a reflecting surface and a back surface opposite to each other; the reflecting surface faces the lens assembly to reflect a light beam passing through the lens assembly. The housing assembly includes a flow channel frame, an inner surface. The flow channel frame is arranged on the inner surface and protrudes toward the back surface. The buffer is sandwiched between the flow channel frame and the back surface. A flow channel is formed between the flow channel frame and the back surface and communicates with the air inlet and the air outlet.

Abstract: A display device can include a case having an opening; a first optical mirror disposed on a first side within the case; a second optical mirror disposed on a second side within the case and located under the first optical mirror; and an image display unit disposed on a third side within the case and having a plurality of surfaces for outputting images. Also, the first optical mirror and the second optical mirror are configured to reflect the images output by the plurality of the surfaces of the image display unit and merge the images together to display a combined image at a space located between the opening and a viewer. Also, a second distance between the second optical mirror and the image display unit is proportional to a first distance between the first optical mirror and the second optical mirror for displaying the combined image at a predetermined height.

Abstract: A control method includes a first projector receiving an input concerning a first instruction, the first projector displaying an instruction pattern corresponding to the first instruction, a second projector acquiring an image including the instruction pattern, and the second projector performing an operation corresponding to the instruction pattern. The instruction pattern includes a first figure having a first shape and a first color corresponding to content of the first instruction.

Abstract: A mirror clip for use in an optical mirror housing for an optical emission spectrometer includes a body having a mirror seating portion, at least one hinge member for positioning and attaching the clip to an optical mirror housing, and at least one clamping member for releasably securing the mirror clip to the optical mirror housing. A mirror can be accommodated in the mirror seating portion. The at least one hinge member may include a hook to provide a releasable hinged connection between the mirror clip and the optical mirror housing.

Abstract: According to an aspect, a display device includes: a display panel; a first optical component serving as a switchable optical component capable of being switched between a reflection state and a transmission state of light by a reflection surface thereof; and a second optical component. The reflection surface of the first optical component that faces the display panel is arranged on a light path extending from the display panel. The second optical component has a reflection surface. The reflection surface of the second optical component is on a path of light reflected by the first optical component.

Abstract: The current invention concerns a head-mounted display apparatus, preferably smart glasses, with autofocus system, whereby the alignment of lens assembly and light beam emitter is improved.

Abstract: A method of using a system for generating a centrally located floating image display includes displaying a first image including real-time social media information with a first display, receiving the first image with a first reflector, reflecting the first image with the first reflector, displaying, a second image including real-time social media information with a second display, receiving the second image with a second reflector, reflecting the second image with the second reflector, displaying first private information to the first passenger and second private information to the second passenger with a transparent display positioned between the first passenger and the first reflector and between the second passenger and the second reflector, receiving input from the first and second passengers with the system controller, and collecting images with an external scene camera.

Abstract: An image projection method includes, projecting a plurality of first markers onto a screen, projecting one or more first sub-markers each having an exterior appearance different from an exterior appearance of each of the plurality of first markers onto the screen, determining positions of the plurality of first markers, determining positions of the first sub-markers, determining a shape of a contour of a first image projected on the screen based on the positions of the plurality of first markers, determining a first line and a first edge of a blend area where the first image and a second image different from the first image are mixed with each other based on the positions of the plurality of first markers and the positions of the first sub-markers, and the first line and the first edge forming the contour of the first image, and projecting the first image onto the screen.

Abstract: A head up display arrangement for a motor vehicle includes an image source emitting a light field. A first freeform mirror is positioned to provide a first reflection of the light field. A generally concave second freeform mirror is positioned to receive the first reflection and provide a second reflection of the light field. The second reflection is reflected off of a windshield of the vehicle so as to be visible to a driver of the vehicle as a virtual image. The generally concave second freeform mirror includes a reflective surface having a shape such that the virtual image appears to be curved to the driver of the vehicle.

Abstract: Materials that can be templated by one or more of biological material and biologically-derived material, structures including such materials, and methods of forming and using the materials and structures are disclosed. Exemplary materials and structures can be used to reflect, polarize and/or retard electromagnetic radiation.

Abstract: Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye dioptric component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume. A gap layer exists between the near-eye dioptric component and the total reflection prism, and the gap layer contains substances with a refractive index lower than that of the total reflection prism.

Abstract: A display apparatus includes a waveguide; an input coupler on the waveguide and configured to introduce light containing an image into the waveguide; and an output coupler on the waveguide and configured to output light traveling in the waveguide to the outside of the waveguide, wherein the output coupler includes a plurality of first diffraction grating elements arranged apart from each other and configured to diffract a first light portion in a first wavelength band among the light traveling in the waveguide.

Abstract: A display apparatus includes an image generator including a spatial light modulator that is configured to perform phase modulation on to-be-modulated image light to generate modulated first image light and modulated second image light, and an image display module that is disposed on a light emitting side of the image generator. The image display module includes a first diffusing screen and a second diffusing screen. The first image light is projected on the first diffusing screen and the second image light is projected on the second diffusing screen. A spatial position of the first diffusing screen is different from a spatial position of the second diffusing screen.

Abstract: Disclosed are systems and methods for a vehicle and projector module. The vehicle can include a compartment. The vehicle can include a projector module configured to extend from the compartment to provide light to a projector screen.

Abstract: Disclosed is a rollable and hidden laser television integrated machine. An electric panel opening mechanism, a screen lifting mechanism, a screen rolling and collecting mechanism, and a laser projection display device are arranged inside a television integrated machine main body. The screen lifting mechanism is movably arranged in a lifting groove. The top end of the screen is connected to the screen lifting mechanism, and the bottom end of the screen is connected to the screen rolling and collecting mechanism. A projection groove is formed at the middle position of the upper surface of the television integrated machine main body, and the top end of the electric panel opening mechanism is movably arranged in the projection groove. The laser projection display device is arranged under the electric panel opening mechanism. The middle portion of the box body is provided with a sound transmission mesh plate.

Abstract: A method of controlling a projector includes projecting a correction image having a rectangular shape in which a plurality of correction points is arranged on a first side out of four sides on a projection surface, receiving an operation of moving a first correction point included in the plurality of correction points in a first direction, moving another correction point than the first correction point out of the plurality of correction points in a second direction opposite to the first direction when an amount of movement in the first direction of the first correction point by the operation is larger than a threshold value, and projecting an output image obtained by applying a distortion correction based on the moving the another correction point than the first correction point to an input image on the projection surface.

Abstract: An interactive multimedia device designed to display an image on a flat surface below the device, e.g., on the floor. The interactive multimedia device has a housing (10) which comprises a projector (11), at least one loudspeaker (12), a camera (13), an IR illuminator (15), a power supply module, and a control unit (16), wherein the housing (10) has vents (6) of housing (10), wherein the vents (6) of housing (10) have the same size and shape as those of the vents (17) of projector (11), wherein the vents (6) of housing (10) are oriented in the same way as the vents (17) of projector (11) and the vents (6) of housing (10) are located above the vents (17) of the projector (11).

Abstract: A head mounted display including two display units is provided. An included angle between the two display units is greater than 0 degrees and less than 180 degrees. Each of the two display units includes a display device, a condenser lens and a prism. The condenser lens overlaps the display device. The prism overlaps the condenser lens and the display device. A material of one of the condenser lens and the prism includes flint glass, and a material of the other of the condenser lens and the prism includes crown glass.

Abstract: Described herein are imaging devices and associated methods. Devices and methods are described that include a plurality of topological phase modulators. In one example, the plurality of topological phase modulators includes an array of spiral vortices. Devices and methods are described that include a neural network to reconstruct images using data from the plurality of topological phase modulators.

Abstract: A heat-dissipating module including heat-dissipating fins and heat pipes is provided. The heat-dissipating fins include first and second heat-dissipating fins arranged in an interleaved, spaced apart manner, and arranged in parallel along a first direction. The first heat-dissipating fins have interleaved first vias and first breach holes. The second heat-dissipating fins have interleaved second vias and second breach hole. The first breach holes and the second breach holes are arranged along a second direction, and the second vias respectively correspond to the first vias. The first direction is not parallel to the second direction. The heat pipes are configured to pass through the first vias and the second vias. A position of the orthogonal projection of a first breach hole formed on the second heat-dissipating fins along the first direction and the corresponding second breach hole are not overlap or are partially overlapped, and are arranged in symmetry.