Abstract: A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video.

Abstract: 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 (ti) are determined according to the following equation: t i = 2 ? i + 1 8 * FR * F 1 ? F 2 , where : F 1 = f 1 FR , F 2 = f 2 FR , i = 0 , 1 ,

Abstract: A system including two dimensional, microelectromechanical system (MEMS) based spatial light modulators and anamorphic optics for improved contrast is provided. Generally, the system comprises an array of modulators having a plurality of pixels along a longitudinal axis, each pixel comprising a plurality of modulators along a transverse axis of the array. An illumination source including a laser and anamorphic optics for focuses light from the laser onto the array, and imaging optics focus modulated light from the array onto an image plane. The anamorphic optics are configured to provide a transverse numerical aperture (NA) along the transverse axis of the array that is smaller than a diffraction angle of the modulated light reflected from the array along a transverse axis of the image plane, and a longitudinal NA along the longitudinal axis of the array that is greater than the transverse NA. Other embodiments are also provided.

Abstract: Systems, devices, and methods for optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. The optical engines include an optical director element that includes a curved reflective surface (e.g., parabolic cylinder) that redirects laser light beams and collimates the same along the fast axes thereof. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

Abstract: Provided are a display apparatus, an apparatus for proof of play, and a method for proof of play of contents, to determine whether content is played normally by analyzing a captured image displayed on the display apparatus. A display apparatus according to an embodiment includes a display configured to display a content image; a communicator configured to receive a camera image captured by the display; and a controller configured to compare the content image and the camera image using a pixel value of the content image and a pixel value of the camera image, and determine whether the content image is displayed normally on the display based on the comparison result.

Abstract: A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video.

Abstract: A projection-type display device includes: a light source; a dust-proof case; heat-dissipating fins; a heat-dissipation fan that causes cooling air to flow into the heat-dissipating fins; a prism unit that is provided inside the dust-proof case and that separates light from the light source into a multiplicity of illumination light beams; an internal circulation fan; heat-receiving fins; and heat pipes that connect the heat-dissipating fins and the heat-receiving fins. The heat-receiving fins and the heat-dissipating fins are both formed in a substantially rectangular parallelepiped shape, each having, as cooling air inflow surfaces that are effective in heat dissipation or heat reception, a first surface and a second surface whose area is greater than the first surface. The cooling airflow inside the dust-proof case that is supplied by the internal circulation fan flows from the first and second surfaces of the heat-receiving fins.

Abstract: A method for automatically producing an optical blend mask arranged in a beam path (8) of a projector (2) in a projection system with two projectors (2), by determining an actual state of the projection system by calibrating and producing an ideal blending, ascertaining an individual distortion of the projector (2) by using a front or back projection surface (11), introduced into the beam path (8), using patterns (13) from which points are derived, ascertaining the alignment and the position of the front or back projection surface (11) within a blend mask plane, calculating the optical blending for a partial image, for positioning and/or a transformation of the ideal blending, adapting the ideal blending for compensating a soft focus, applying the ascertained, individual distortion of the projector (2) to the blending, ascertaining data of the optical blend mask and outputting data for producing the optical blend mask.

Abstract: A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video.

Abstract: Systems, devices, and methods for optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. The optical engines include an optical director element that includes a curved reflective surface (e.g., parabolic cylinder) that redirects laser light beams and collimates the same along the fast axes thereof. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

Abstract: An optical design system is used to design a light shaping element that directs light from a specified source to a specified light distribution. The process includes designing related faceted optical devices (reflective or refractive) such that light from a common source point is distributed across multiple target points.

Abstract: A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video.

Abstract: A light source device includes a light source section that emits laser beam, a member reducing light quantity unevenness of the laser beam, a diffusion member that is provided in a traveling optical path of the laser beam between the light source section and the member reducing light quantity unevenness and diffuses the laser beam, a detection element that detects a physical characteristic of the diffusion member and outputs a state detecting signal, and an abnormal state determiner that determines an abnormal state of the diffusion member based on the state detecting signal.

Abstract: A display device includes a display panel including an upper surface, a rear surface facing the upper surface, and a side surface connecting the upper and rear surfaces to each other, a mold frame under the display panel and defining a first frame portion thereof facing the rear surface of the display panel, and a second frame portion extended bent downwards from side surfaces of the first frame portion; and a guide member detachably coupled to the mold frame, the guide member defining a first portion thereof configured to face an outer surface of the second frame portion, the first portion extending bent to define a second portion of the guide member, the second portion configured to face the side surface of the display panel when the first portion faces the outer surface of the second frame portion.

Abstract: A plurality of framing blades; and a multiparameter theater light including a light source; and an optical component. Each of the plurality of framing blades configured to be placed in a path of the light source so that at least one surface of each of the plurality of framing blades reflects light rays from the light source. At least one surface of each of the plurality of framing blades may include a plurality of peaks and a plurality of troughs, alternating between a peak and a trough, and the distance between adjacent peaks varies; and wherein light rays incident on the at least one surface with the same angle of incidence with respect to a straight line defining a length of each of the plurality of framing blades, have a different angle of reflection with respect to the straight line, depending on where the light rays are incident on.

Abstract: Optical films for reducing color shift, and organic light-emitting display apparatuses, employing the same include a first lens pattern layer including a plurality of first grooves, and a second lens pattern layer on the first lens pattern layer having the plurality of first grooves. The second lens pattern layer has a plurality of second grooves crossing the plurality of first grooves. The plurality of first and second grooves are each shaped in the form of a stripe.

Abstract: A wide-angle camera and fabrication method thereof includes a sensor with a plurality of pixel sub-arrays and an array of optical elements on a first side of a substrate. Each of the optical elements is capable of forming an image from a field of view onto a different one of the pixel sub-arrays. The wide-angle camera also includes an array of achromatic doublet prisms on a second side of the substrate, where each of the achromatic doublet prisms is aligned to provide a viewing angle with a different one of the optical elements. The sensor captures a wide-angle field of view while having a compact format.

Abstract: A high efficiency configuration for a solar cell module comprises solar cells arranged in a shingled manner to form super cells, which may be arranged to efficiently use the area of the solar module, reduce series resistance, and increase module efficiency. In some variations a solar module comprises a white backing sheet on which rows of super cells are arranged, and the white backing sheet comprises darkened stripes having locations and widths corresponding to gaps between the rows of super cells such that white portions of the backing sheet are not visible through the gaps between the rows of super cells.

Abstract: Hand gestures may be performed to control a visual projector. When a human hand is placed into a projection field of the visual projector, the visual projector responds to hand gestures performed by the human hand. The human hand, for example, may gesture to rotate a projected image or to correct the projected image. The visual projector may thus manipulate and/or correct the projected image in response to the gesture performed by the human hand.

Abstract: Described is a light emitting diode (LED) linear illumination system that includes a linear array of LED groups, high efficiency non-imaging optics and aberration corrected imaging optics. Each LED group can include one or more LEDs. The system provides uniform high intensity in near and far fields. System applications include machine vision and inspection of high reflectivity targets. Illumination can include one or more colors, including white light. The described system has improved thermal and optical performance and is generally more compact and lower in cost relative to conventional systems based on pre-packaged commercially available LED devices.

Abstract: An image display apparatus is provided, which uses a light deflection element capable of deflecting incident light so as to follow the position of an observer, and suppressing reduction in the intensity of light reaching eyes of the observer, regardless of the position of the observer. The light deflection element according to the present disclosure is configured to deflect incident light, and includes: a first optical element that deflects incident light; a second optical element that changes a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a first electrode provided on the first optical element side; a plurality of second electrodes provided on the second optical element side; and a control section that controls the voltage applied to the second optical element.

Abstract: A polarizer unit that polarizes light incident thereon and causes the polarized light to exit includes an inorganic polarizer (light-exiting-side polarizer) that polarizes the incident light, a transparent substrate that is disposed in contact with the light-exiting-side polarizer and allows the light having exited out of the light-exiting-side polarizer to pass and exit, and a holding member that presses the light-exiting-side polarizer and the transparent substrate from opposite sides to sandwich and hold the light-exiting-side polarizer and the transparent substrate.

Abstract: Disclosed are methods and systems for displaying images, and for implementing volumetric user interfaces. One exemplary embodiment provides a system comprising: a light source; an image producing unit, which produces an image upon interaction with light approaching the image producing unit from the light source; an eyepiece; and a mirror, directing light from the image to a surface of the eyepiece, wherein the surface has a shape of a solid of revolution formed by revolving a planar curve at least 180° around an axis of revolution.

Abstract: A projector includes a projection section adapted to project a projection image on a projection surface including a target part, a detection section adapted to detect a distance from a predetermined position to the target part, and a control section adapted to set an area to be projected on the projection surface other than the target part out of the projection image as a partial area based on the distance thus detected, and change a display state of the projection image so that the partial area set is masked.

Abstract: Optical systems, such as 2-D and 3-D projection systems, may be configured to have a compact back focal length to allow for more compact projection lenses, lower throw ratios, improved contrast, or any combination thereof. In an embodiment, an optical system may include a relay element configured to form an intermediate image having a focal point proximate to a projection lens.

Abstract: A projection system that includes a singe light modulation device and a plurality of light sources of different wavelengths. Each wavelength of light is incident on the light modulation device at a spatially distinct location and a temporally distinct time. The use of a scanning mirror allows the projection system to sequentially form, in full-color, each of the columns or rows of an image. The projection system is characterized by the reduction of color separation or the rainbow effect due to the rendering of each column or row in full color.