381 results about "Digital Light Processing" patented technology

Apparatus for adaptively and interactively lighting a scene includes a digital light projector that includes a light emitter and a digital light processor optically coupled to the emitter such that the emitter light is projected onto respective individual fields of view of a field of regard illuminating the scene in accordance with a projector control signal. A camera adjacent to the projector is operative to detect light reflected or projected from the illuminated scene and generate a signal corresponding to the detected light. A signal processor coupled to the projector and the camera is operative to receive the camera signal, process the received signal into a light projector control signal in accordance with an associated set of instructions, and apply the control signal to the light projector such that the light projected onto the respective individual fields of view of the illuminating array is controlled in accordance with the instructions.

Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article.

A hyperspectral imaging system having an optical path. The system including an illumination source adapted to output a light beam, the light beam illuminating a target, a dispersing element arranged in the optical path and adapted to separate the light beam into a plurality of wavelengths, a digital micromirror array adapted to tune the plurality of wavelengths into a spectrum, an optical device having a detector and adapted to collect the spectrum reflected from the target and arranged in the optical path and a processor operatively connected to and adapted to control at least one of: the illumination source; the dispersing element; the digital micromirror array; the optical device; and, the detector, the processor further adapted to output a hyperspectral image of the target. The dispersing element is arranged between the illumination source and the digital micromirror array, the digital micromirror array is arranged to transmit the spectrum to the target and the optical device is arranged in the optical path after the target.

Images with enhanced resolution are created with a display device comprising a non-transmissive light valve including addressable pixels, a light source that directs light to the light valve, and a lens positioned between the light valve and the light source, the lens directing light from the light source to the pixels on the light valve and the light valve directing light to viewing optics. The light valve is an integrated circuit ferroelectric liquid crystal device (ICFLCD), or other light valve arrays such as a digital light processor (DLP) display, having an array of addressable pixels. Such light valves may be mounted in a head mounted display.

A system (100) for the adaptive imaging of a scene includes a digital light processing apparatus (150) adapted for controllably reflecting an image of the scene in at least a first direction to thereby reflect an intensity modulated image of the scene along at least the first direction, an image detector (140) for detecting the intensity modulated image of the scene and generating corresponding image data, and an image data processor (154) for processing the image data into control data and providing the control data to the digital light processing (150) apparatus for control thereof.

A hyperspectral imaging system having an optical path. The system including an illumination source adapted to output a light beam, the light beam illuminating a target, a dispersing element arranged in the optical path and adapted to separate the light beam into a plurality of wavelengths, a digital micromirror array adapted to tune the plurality of wavelengths into a spectrum, an optical device having a detector and adapted to collect the spectrum reflected from the target and arranged in the optical path and a processor operatively connected to and adapted to control at least one of: the illumination source; the dispersing element; the digital micromirror array; the optical device; and, the detector, the processor further adapted to output a hyperspectral image of the target. The dispersing element is arranged between the illumination source and the digital micromirror array, the digital micromirror array is arranged to transmit the spectrum to the target and the optical device is arranged in the optical path after the target.

The invention has two main embodiments, a first called column switching and blanking and a second embodiment called doubling. The first embodiment is a projector for displaying a stereoscopic image with projector using one or more digital micromirror devices positioned into a plurality of columns and rows. The projector itself includes a light source, an optical system, a video processing system and a data system for driving the micromirror devices. The data subsystem provides separate data to a plurality of column pairs of the micromirrors. The projector includes a stereoscopic control circuit having a first state of the control circuit for inputting a first eye view of the stereoscopic image and causing the micromirrors of a first column of each column pair to be in various on and off states during said first eye view of said stereoscopic image and for causing all of said micromirrors of a second column of each column pair to be in an off state during said first eye view of said stereoscopic image. A second state of the control circuit is used for inputting a second eye view of the stereoscopic image and causes the micromirrors of the second column of each column pair to be in various on and off states during the second eye view of the stereoscopic image and for causing all of the micromirrors of the first column of each column pair to be in an off state during the second eye view of said stereoscopic image. The second embodiment is a projector for displaying a stereoscopic image with the projector using one or more digital micromirror devices positioned into a plurality of columns and rows. The projector includes a light source, an optical system, a video processing system and a data system for driving said micromirror devices. The data subsystem provides separate data to a plurality of column pairs of the micromirrors. The projector includes a stereoscopic control circuit having a first state for inputting a first eye view of the stereoscopic image and causing each micromirror of each column pair to be in various but identical on and off states during said first eye view of said stereoscopic image. A second state of the control circuit for inputs a second eye view of the stereoscopic image and causes each micromirror of each column pair to be in various but identical on and off states during the second eye view of the stereoscopic image.

An optical light engine (100) includes one or more light-emitting diode (LED) panels (101, 102, 103) that are combined into a common path and directly imaged onto panel device to provide a source of light to a microdisplay panel (109). Preferably, the LED panel (101, 102, 103) is shaped such that the aspect ratio of light propagating the LED panel is substantially equal to the light received at the microdisplay panel (109). An aspect ratio of 4:3 or 16:9 is typically selected in view of the sizes of the LED panels used in the light engine.

Photo-curable compositions for artificial teeth and denture base and a method for manufacturing denture by a three-dimensional printing system are provided. The compositions include photo-curable organic compounds, surface modified nano-sized inorganic filler, photo-initiator, colorant, and stabilizer. The composition is in a viscous liquid state having 1500-5000 cps at ambient temperature and has a low viscosity of 50-500 cps at jetting temperature or dispensing temperature. The composition also has an excellent curing rate for three-dimensional printing. Using the compositions, denture having a distinctive denture base and a set of artificial teeth can be manufactured via an inkjet type or digital light process type three-dimensional printing according to Computer Aided Design (CAD) data.

The invention discloses a three-dimension measuring system for a dynamic object, which comprises a clock synchronous controller, a digital light processing (DLP) projector, two charge coupled device (CCD) cameras, an image acquisition card and a computer, wherein a color wheel for generating colorful images is removed from the DLP projector, included angles between optical mandrels of the CCD cameras and the optical mandrel of the DLP projector are both between 20 and 60 degrees, and the relative positions of the DLP projector and the CCD cameras are unchanged during measurement; the computer is a graphic card with a calculation-based uniform equipment framework; and the clock synchronous controller is connected with the DLP projector and the CCD cameras respectively, the DLP projector is connected with the computer, and the CCD cameras are connected with the computer through the graphic card respectively. The system has a most obvious characteristic of high measuring speed and can calculate and display the three-dimensional information of the dynamic object in real time.

A 3D scanning device comprises: a digital light encoding unit comprising a digital micromirror device for encoding a rapidly changing shape signal onto a light beam directed to an object, a shape of said signal being selected such that distortions thereof by a contoured object reveal three-dimensional information of said contour; a detector synchronized with said digital light processing unit for detecting reflections of said light beam from said object, and a decoder for determining a 3D shape of said object from distortions of said signal in said detected reflections.

An apparatus and method for stereoscopic 3D image projection and viewing using a single projection source, alternating polarization, and passive eyewear. This approach is applicable to frame sequential video created using existing 3D graphics APIs, as well as other video signal formats, and is compatible with existing digital light processor (DLP) technology for both front and rear projection systems. A alternating polarizer filter actuator in the form of a closed feedback loop with pulse width modulated control is used to modulate the projected image. A preferred embodiment enables an existing DLP projection system to be enhanced with 3D capability.

The present disclosure provides a light source module including three light source units each comprising a light source and respectively emitting light of different color. At least one light source unit of the three light source units is a first light source unit. Each first light source unit further includes a rotatable light converter located on the light path of the light emitted from the light source The rotatable light converter is covered with fluorescent powder. The fluorescent powder is located on the light path of the light emitted from the light source, and configured for converting the emitted light from the light source into light of different color when the fluorescent powder is stimulated by the emitted light. The present disclosure also provides a digital light processing projector with the light source module.

The invention discloses a projector area calibration method by utilizing concentric circular rings on the basis of a lens distortion rule, and solves a problem of low calibration precision when a field of view is enlarged at present while a problem of insufficient optical lens distortion processing is solved. The method comprises the following steps: firstly, projecting a specially-designed checkerboard image onto a plane calibration board by utilizing a DLP (Digital Light Processing) projector, and capturing a calibration object image which contains a pasting checkerboard and a projection checkerboard by a CCD (Charge Coupled Device) camera; changing the position of the plane calibration board for multiple times to obtain multiple pairs of calibration object images; according to the lens distortion rule, taking the center of each calibration image as a center of a circle, calculating distance between each angle point to the center of a circle, and comparing the distance with a given radius value to divide the concentric circular ring areas; on the basis of each concentric circular ring, calibrating a camera, carrying out distortion correction to the data of the projection checkerboard by utilizing calibration parameters so as to calibrate the projector to obtain the internal and external parameters of the projector of a corresponding area; and repeating the above operations to the circular ring areas to finish the calibration of the projector.

The invention discloses a part of a DLP (Digital Light Processing) photo-curing 3D printer and in particular relates to a worktable assembly of a DLP photo-curing 3D printer. The worktable assembly comprises a worktable and a transparent resin tank, wherein a mounting bottom frame is connected onto the worktable in parallel, the transparent resin tank is fixed on the mounting bottom frame, one side of the mounting bottom frame instantly inclines upwards when a printing layer and the bottom surface of the transparent resin tank are demoulded and the mounting bottom frame can automatically restore after the demoulding process is finished. The worktable assembly achieves the technical effect that the mounting bottom frame can incline and deviate relative to a base plate of the worktable when the DLP photocuring 3D printer works and the printing layer and the bottom surface of the transparent resin tank are demoulded, thereby saving energy and materials and improving the product printing quality of the DLP photocuring 3D printer.

An apparatus and method for stereoscopic 3D image projection and viewing using a single projection source, alternating polarization, and passive eyewear. This approach is applicable to frame sequential video created using existing 3D graphics APIs, as well as other video signal formats, and is compatible with existing digital light processor (DLP) technology for both front and rear projection systems. An alternating polarizer in the form of a magnetomechanically resonant polarizing filter actuator is used to modulate the projected image. A preferred embodiment enables an existing DLP projection system to be enhanced with 3D capability.

The invention discloses a system for manufacturing teeth correcting equipment and a method for preparing the concealed teeth correcting equipment by the system. The system comprises a data acquisition system, a modeling system, a model making system, a thermoplastic forming system and a detection system. The manufacturing method includes the steps: acquiring initial oral cavity state information and building an initial digital model of upper and lower jaws; designing the ideal state of each tooth and making a standard digital model according to oral conditions; designing a series of stage digital models between the initial digital model and the standard digital model; manufacturing the needed concealed teeth correcting equipment according to a series of solid dental models. The stage digital models represent preset target situations at different correcting stages, and the solid dental models are made by a 3D (three-dimensional) printing DLP (digital light processing) surface exposure process. The teeth correcting system can correct patients in any age groups.

The invention relates to a processing method applicable to network video monitoring of a digital light processing (DLP) multi-screen splicing display wall. In the method, each display unit is provided with a built-in personal computer (PC) which performs single-image and multi-image signal processing on a remote-end IP camera signal, and the processing process comprises the following steps: a network camera is started; the display unit of the built-in PC is started; the built-in PC in the display unit automatically starts a client; the display unit monitors and plays the camera signal; a built-in splicing processor of the DLP multi-screen splicing display wall finishes image splicing and amplifies, minifies and moves the signal; the DLP multi-screen splicing display wall displays the processed signal; and multi-channel signals are displayed by repeating the steps. Compared with the prior art, the method of the invention has low cost, is simple in construction and can ensure infinite increase of the number of monitoring signal sources along with digital matrix functions, and the like.

The invention relates to function features or parts of a vehicle illumination signal device or system, provides an LiFi-and-DLP-based automotive illumination system and a vehicle illumination signal device hereof. An LED main light source is used as a sending light source of a light fidelity (LiFi) sending assembly to send driving data of a vehicle out. A built-in LiFi receiving assembly is used for receiving a light signal sent by an opposite-side vehicle; decoding is carried out to obtain driving data of the opposite-side vehicle; and the data are transmitted to a vehicle bus. A digital light processing (DLP) projection system based on a DMD chip is used for providing projection illumination; according to the driving data, obtained by the LiFi receiving assembly, of the opposite-side vehicle, a projection illumination area is controlled; and a phenomenon that driving security is affected by dazzling light caused by a headlamp can be avoided by adjusting a projection area of light projected to an opposite-side driver position, so that information interaction between vehicles in a vehicle light signal reaching range is realized. A driving state of an adjacent vehicle is estimated and thus early warning of a vehicle collision accident is realized, thereby reducing the probability of a traffic accident effectively.

A digital light processing projector comprising a light source, a splitter module, a plurality of total internal reflection (TIR) prisms and digital mirror devices (DMDs), a combiner and a projection lens is provided. The splitter module is disposed in the light path of the light after the light source to split the light into a plurality of color lights. Each color light is incident to the total reflection plane of the TIR prism with an incident angle larger than the critical angle, and then is totally reflected to the DMD. Thereafter, each color light is reflected by the DMD being incident to the total reflection plane of the TIR prism with an incident angle smaller than the critical angle, and then passes through the TIR prism directly. The color lights passing through the TIR prisms are combined by the combiner and then projected by the projection lens.

The invention relates to a DMD (Digital Micromirror Device) projection display system. The invention discloses the DMD projection display system adopting laser sources. A control chip of the DMD projection display system can use an ordinary commercial microprocessor, and special chips of Texas instruments and the like are not needed, so that the monopoly is broken. The laser projection display system adopts at least three laser sources containing three primary colors, the laser sources are controlled by a DLP (Digital Light Processing) control system, each monochromatic source is lightened, light shot on the DMD is light which has different colors and generated by a color wheel rotating, and the light is reflected by the DMD to synthesize a projection image. The control mode can utilize a PWM (Pulse Width Modulation) port of a laser source control device MCU (Microprogrammed Control Unit) to generate a color wheel feedback waveform in a simulative mode, only the waveform and the simulative color wheel synchronously rotate, and the laser projection display system can obtain a correct image like the traditional UHP (Ultra High Pressure) light-source projection system.

The invention discloses an adapter on-line detection system, comprising two DLP (Digital Light Processing) projectors, four CCD cameras, an image acquisition card and a computer, wherein models of the DLP projectors and models of the cameras are the same; an angle between a light spindle of a CCD camera in each subsystem and a light spindle of a DLP projector is between 20 DEG and 60 DEG, and a relative position between the DLP projector and the CCD camera is not changed in measurement; the computer is provided with a figure video card based on a calculating unified equipment framework. A clock synchronous controller is respectively in connection with the DLP projectors and the CCD cameras to trigger the cameras and the projector to synchronously collect raster image deformed after modulation; the DLP projectors is in connection with the computer; the four CCD cameras are all in connection with the computer through the image acquisition card. The adapter on-line detection system has the outstanding characteristics of high measuring efficiency and accurate abrasion loss assessment.

A combined power and data track lighting system includes an elongated track, having a number of longitudinal guide ways, for attachment to a support surface, as well as a number of current carrying conductors arranged within at least some of the guide ways. The first of these conductors are power conductors and the second conductors are data conductors, the conductors being electrically isolated from each other. The lighting system further contains a first adapter for connection to source of electrical power for the power conductors, and a second adapter for connection to a source of control data. There is at least one LED luminaire present in the system, and this luminaire contains a number of LEDs, each of which, when energized, generates a single color out of a discrete plurality of colors. A data converter converts data along the data lines to control the currents in the individual groups of color LEDs, so that they create a desired composite color. Further, at least electrically, the LED luminaire is electrically connected to the power conductors and data conductors located in the lighting track. Likewise, at least one each of a Quartz luminaire, Metal-Halide luminaire, Digital Light Processor (DLP) automated computer luminaire, Liquid Crystal Display (LCD) automated computer luminaire, and DMX controlled device can be used in the present system including support trusses. The main control data will be Remote Device Management RDM supplied by an external controller applied to the data conductors of the combined power and data track lighting system.

The present invention relates to the use of free-radically curable compositions, comprising chain-like and / or cyclic and / or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and / or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and / or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.

An integrated speaker and display that includes a display and a speaker assembly. The display is substantially integrated within the speaker assembly. The display is embedded between a coil of the speaker assembly and / or magnets of the speaker assembly. The speaker assembly may include a diaphragm located either on a side of the display facing a viewer of the display or opposite a side of the display facing a viewer of the display. The electronic device may be any type of device, for example, a mobile phone, a personal digital assistant (PDA), an electronic game, a computer, an audio player, a video player, a television, or a display device. The display may be any type of display, for example, a liquid crystal display (LCD), a digital light processing (DLP) display, a light-emitting diode display (LED), or a plasma display.