771 results about "Light emitter" patented technology

Disclosed is a three-dimensional reconstruction method based on kinematic calibration of line structured light point set individualization, and the method includes the following steps: rigidly assembling an area-array camera and a line structured light emitter, and mounting the assembly on a motion platform; calibrating structural parameters of the motion platform of a measuring device by using a reference radius of a standard sphere and line structured light scanned data; registering a spatial position relationship of a line structured light point set by taking a calibrated spherical center position of the standard sphere and the reference radius of the standard sphere as constraints; controlling the five-axis motion platform to move and acquiring scanned data of a measured member under different poses; and completing high-quality three-dimensional model reconstruction of the measured member subjected to multi-pose scanning by using the scanned data and a real-time point cloud registration matrix.

The invention provides a light color cast correction method and device based on a target area, and is applied to the technical field of data processing. The method comprises the following steps: acquiring a light original image and a shooting environment parameter through an image acquisition module; a light source point is positioned by using a YOLO algorithm, a white connected domain is extracted by combining an HSV threshold value, a luminous body contour is obtained through closed contour search, and whether correction is needed or not is judged according to the proportion of 80%; a U-Net model with specific parameters is adopted to segment outer-layer halo, and a color reference annular area is obtained through XOR operation; on the basis of pixel data of the region, through formula calculation, abnormal value filtering and class logistic regression function fitting, deducing and compensating an HSV (Hue, Saturation and Value) parameter; and performing non-target area invariance on the color cast area of the inner layer of the light source, and finally outputting a corrected image and verifying the effect, thereby realizing accurate color cast correction.

A method of imaging an internal surface of a conduit, the method including deploying an inspection assembly within an internal volume of a conduit, the inspection assembly having a camera and a lighting array including a plurality of light emitters; illuminating a region of interest on said internal surface using the lighting array; and capturing image data of the region of interest using the camera, the image data including spatial data and intensity data at a plurality of different narrowband wavelength ranges of light.

Example embodiments relate to light detectors for nearby object detection in light detection and ranging (lidar) devices. An example embodiment includes a lidar device. The lidar device includes a light emitter configured to emit a light signal at a first time. The lidar device also includes a light detector configured to detect the emitted light signal. Additionally, the lidar device includes a biasing circuit configured to modify a detector bias using a bias signal. The bias signal ramps the detector bias from a first bias level at the first time to a second bias level at a second time. The second time is separated from the first time by a ramp duration. The ramp duration is sufficient to prevent any internal feedback within the lidar device caused by the emitted light signal from saturating the light detector or detection circuitry associated with the light detector.

Various embodiments of solid state transducer (“SST”) devices are disclosed. In several embodiments, a light emitter device includes a metal-oxide-semiconductor (MOS) capacitor, an active region operably coupled to the MOS capacitor, and a bulk semiconductor material operably coupled to the active region. The active region can include at least one quantum well configured to store first charge carriers under a first bias. The bulk semiconductor material is arranged to provide second charge carriers to the active region under the second bias such that the active region emits UV light.

A medical visualisation system including a main component including an image sensor and a light emitter; a first auxiliary component configured to transmit image data based on the signals; a second auxiliary component configured to receive signals from the main component and to transmit image data based on the signals, the second auxiliary component including a second memory having embedded therein data; and a video processing apparatus including a high frequency wireless transceiver configured to establish an image data communication channel with the high frequency wireless transceiver of the first auxiliary component or with the high frequency wireless transceiver of the second auxiliary component and to receive the image data with the image data communication channel, wherein the first auxiliary component is configured to, based on the data, cause adjustment of one or more components of the main component or the video processing apparatus.

A wearable display system includes one or more emissive micro-displays, e.g., micro-LED displays. The micro-displays may be monochrome micro-displays or full-color micro-displays. The micro-displays may include arrays of light emitters. Light collimators may be utilized to narrow the angular emission profile of light emitted by the light emitters. Where a plurality of emissive micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, e.g., an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

A distance measurement device includes a light emitter for transmitting pulsed light and a light receiver for detecting reflected light from an object, providing an output signal. The device has at least one of a circuit or a processor with memory storing executable computer program code. The circuit or processor calculates an object distance using the time of flight of the pulsed light. Additionally, a histogram representing received light intensity for each time of flight is generated from the output signal. The device determines whether the object is within a short-distance range based on the timing of a peak in the histogram, and calculates the object distance using both a feature value related to the number of light reflections and the timing of the peak's decline.

The embodiment of the invention provides a dust display system and method based on polychromatic light and autonomous cleaning equipment, and belongs to the field of intelligent cleaning equipment. The system comprises a multi-color detection light emitter which is configured to project at least two detection light beams with different wavelengths to a to-be-cleaned ground area in front of or laterally in front of the autonomous cleaning equipment; the light receiver is configured to receive a light signal from the ground area to be cleaned and generate corresponding image data; the control module is electrically connected with the multi-color detection light emitter and the light receiver, and is configured to control the multi-color detection light emitter to switch and emit detection light beams with different wavelengths in a time-sharing mode; and on the basis of multiple groups of image data acquired by the light receiver under the irradiation of the detection light beams with different wavelengths, smudginess identification is performed, and a cleaning strategy control signal is output. The ground background and real dirt can be effectively distinguished, and the false alarm rate is greatly reduced; and meanwhile, the identification capability of smudginess colors and properties is improved, and the method is suitable for diversified family smudginess scenes.

A mobile phone may include an enclosure including a housing component and a front cover coupled to the housing component and defining a front exterior surface of the mobile phone. The mobile phone may further include a display positioned below the front cover and a sensor module positioned below a front-facing sensor region of the front cover and including a biometric sensing system. The biometric sensing system may include a first lens, a light emitter positioned below the first lens and configured to emit light onto an object, a second lens, and a light sensor below the second lens and configured to capture an image of the object. The sensor module may further include a proximity sensing system positioned between the first lens of the biometric sensing system and the second lens of the biometric sensing system.

A virtual image display device includes a backlight, a display panel, an optical system, and a backlight controller. The backlight includes a plurality of light emitters and a light-emitting surface that can emit light from the plurality of light emitters. The display panel includes a display surface that displays an image with light emitted from the light-emitting surface. The optical system enlarges an image of the display surface and an image of the light-emitting surface by different enlargement factors to form a virtual image in a field of view of a user. The backlight controller performs local dimming control by switching each of the plurality of light emitters between an emissive state and a non-emissive state based on the image displayed on the display panel. The light-emitting surface is smaller than the display surface.

The present invention relates to a treatment device comprising a shaft extending between a proximal portion and a distal portion, a surgical instrument located at the distal portion, a handpiece located at the proximal portion, a treatment end located at a distal end of the surgical instrument, the treatment end being capable of applying photodynamic therapy (PDT). The treatment end comprises an applicator for applying a photosensitizing agent to a surface of a target tissue and a light emitter capable of emitting generated light therapy light to activate the photosensitizing agent to ablate the target tissue. A method for providing PDT to a target tissue, the method comprising: inserting the treatment device into a patient; applying a photosensitizing agent and light therapy light to a surface of the target tissue; and removing the device from the patient.

The application discloses an infrared sensing module, which comprises a reflecting part, a driving part, an infrared light emitter and an infrared light receiver, the driving part is connected with the reflecting part, the driving part drives the reflecting part to rotate, and in the case that the reflecting part rotates to a preset position, an infrared reflecting layer of the reflecting part faces the infrared light emitter and the infrared light receiver. The above scheme can solve the problem that the thickness of a terminal device is large due to the fact that infrared sensors are arranged on both sides of the terminal device. The application discloses a terminal device, a control method of a terminal device, a control device for controlling a terminal device and a computer readable storage medium.

The utility model discloses a cable reel cable allowance light sensation method detection device comprising a wrapping post, outer reels are fixed on two sides of the wrapping post, the outer reels are provided with outer protrusions and inner protrusions, the outer protrusions are arranged on the outer diameters of the outer reels, and the inner protrusions are arranged on the inner diameters of the outer reels; notches are formed in the outer protrusions and the inner protrusions, grooves are formed in the face, close to the wrapping post, of the outer disc, the grooves correspond to the notches, integrated induction plates are installed on the grooves, integrated signal boxes are installed on the notches, and the winding thickness of a cable gradually wound in the wrapping post can become higher and higher till the cable gradually shields each light emitter. The optical sensor closer to the wrapping post represents that the number of turns of the cable is less, otherwise, the number of turns of the cable is more, and the shielded optical sensor can feed back data to the integrated signal box; and the integrated signal box processes data and outputs the data to the cloud for remote monitoring, so that a cable reel company can be conveniently reminded to recycle the cable reel after the line is used up, and the monitoring function of the cable reel is greatly improved.

The dustproof beauty mask relates to the cosmetic technical field, including the mask body of the silicone rubber material, the FPC circuit board arranged in the recess of the mask body, the illuminator arranged on the FPC circuit board, the transparent protective layer of the silicone rubber material covering the FPC circuit board and the illuminator, the anti-static cloth is arranged on the outer side of the mask body, the hot melt adhesive film is arranged between the anti-static cloth and the outer side of the mask body, the illuminator is a semiconductor illuminator, more than one semiconductor illuminator constitutes a group of illuminator groups, the illuminator groups are uniformly distributed on the FPC circuit board, and the semiconductor illuminator is fixed on the FPC circuit board through the die bonding technology.Compared with the prior art, the dustproof mask has the advantages that the silicone rubber static level can be effectively reduced, the mask body appearance pattern is enriched, the density of the illuminator can be increased, the uniformity of illumination can be improved, the mask thickness can be significantly reduced to facilitate modeling, the material consumption can be reduced, and the manufacturing cost can be reduced.

An optical device includes a generator, a light emitter, a modulator, an optical amplifier, a current source, a storage, and a controller. The generator generates an electric signal of a multilevel amplitude modulation method. The light emitter emits laser light. The modulator modulates the laser light using the electric signal and outputs an optical signal. The optical amplifier optically amplifies the modulated optical signal according to a drive current. The current source adjusts the drive current to be supplied to the optical amplifier. The storage previously stores an information with respect to input-output characteristics of the optical signal in the optical amplifier relative to drive current value of the drive current. The controller acquires, from the storage, the input-output characteristics corresponding to the drive current value of the drive current supplied to the optical amplifier and controls the electric signal based on the acquired input-output characteristics.

A media detection apparatus for detecting moisture information corresponding to a moisture amount or a moisture percentage of a sheet, the media detection apparatus comprising:a light emitter that emits light;a light receiver that receives the light reflected off the sheet or transmitted through the sheet; anda first hardware processor that determines the moisture information on the basis of temperature information corresponding to a temperature of the media detection apparatus and an output of the light receiver.

The embodiments of the present disclosure disclose a packaging structure and a manufacturing method thereof, wherein the packaging structure comprises a substrate, at least one first interlayer on the substrate, the first interlayer having a first optical element therein; a plurality of light processing unit groups on the first interlayer, each light processing unit group comprising one or more spaced-apart light processing units; a second interlayer, and a light emitter on one side of the second interlayer in the thickness direction, the second interlayer being above the substrate, the second interlayer having a second optical element therein; wherein the light emitter is configured to emit a first light beam towards the second interlayer; the second optical element is configured to divide the first light beam into a plurality of second light beams that are spatially separated and to cause the second light beams to be incident into the first interlayer; and the first optical element is configured to guide the plurality of second light beams incident into the first interlayer to the plurality of light processing unit groups, respectively.

The application discloses a display device and an electronic device. The display device comprises a light-emitting layer and a light-adjusting layer stacked together. The light-adjusting layer is provided with a light transmission hole, and the light-emitting layer comprises light-emitting bodies which are distributed opposite to the light transmission hole. The light-adjusting layer has a light-shielding state and a light-transmitting state. When the light-adjusting layer is in the light-shielding state, the light-adjusting layer is used for blocking light projected from the environment of the display device to the light-adjusting layer. When the light-adjusting layer is in the light-transmitting state, the light-adjusting layer is used for allowing light projected from the environment of the display device to the light-adjusting layer to pass through. The above scheme can alleviate the problem that the display device related to the prior art is difficult to reduce the influence on the function of the optical module under the screen while avoiding affecting the display effect as much as possible.

The invention relates to a fog detector for a vehicle having a specially shaped lens, comprising a light emitter (1) configured to emit at least one light pulse, a first optical element (2) configured to guide light of the at least one light pulse along a first optical path, a second optical element (4) configured to guide scattered light of the at least one light pulse along a second optical path to a focal point of a light receiver (3) of the fog detector, wherein the focal point is spatially offset from an axis extending along the first optical path, the first optical element (2) and the second optical element (4) being arranged and configured such that the first and second optical paths at least partially overlap each other, and the first optical element (2) and the second optical element (4) being arranged and configured such that the light emitter (1) and the light receiver (3) are operable on a common optical axis. The invention also relates to a method for fog detection and to a driving support system comprising the fog detector. Furthermore, the invention relates to a vehicle comprising the driving support system. Moreover, the invention relates to a computer program, to a data carrier signal and to a computer readable medium.

The application discloses a motor assembly, a camera module, an electronic device, a position detection method and device. The motor assembly comprises a first shell, a photosensitive chip arranged in the first shell, the photosensitive chip being capable of moving relative to the first shell, the photosensitive chip being provided with an imaging area, a position detection member arranged in the first shell, the position detection member comprising a second shell connected with the first shell, the second shell being provided with a light transmission part, a light emitter arranged in the second shell, the light emitter being provided with an emitting port, a diffraction grating arranged in the second shell, the diffraction grating being located between the emitting port and the light transmission part, and a pixel unit group arranged in the photosensitive chip, the pixel unit group comprising a first pixel unit and a second pixel unit, the first pixel unit being provided with a plurality of arrayed first light transmission ports, the second pixel unit being provided with a plurality of arrayed second light transmission ports, and the width of the first light transmission port being smaller than the width of the second light transmission port.

A method including emitting, by a light emitter, a first light pulse into an environment at a first time, activating a plurality of light detectors including a first light detector and a second light detector, the first light detector and the second light detector having different fields of view, generating, by the plurality of a light detectors, a plurality of analog signals based on return light reflected from the environment, converting, by a circuit configuration coupled to the plurality of light detectors, the plurality of analog signal to digital data, determining, based on the digital data, distance information associated with one or more objects in the environment.

The invention provides an intraoral light irradiation device which has good wearing comfort and can accurately irradiate light to the gingiva and alveolar mucosa of an orthodontic tooth. An intraoral light irradiation device (1) is provided with: a mouthpiece (2) formed in a U-shape; and a light source (4) which is disposed on the brace (2) and which is provided with a plurality of light emitters (3) that irradiate light to the gums of the wearer. Wherein the mouthpiece (2) comprises a bite tray (5) formed in a U-shape, a front flange (6) facing the outer face of the gum of the wearer, and a rear flange (7) facing the inner face of the gum of the wearer; wherein the front flange (6) and the rear flange (7) are translucent, and the light source (4) is configured to be capable of irradiating light from the inner peripheral surface of the front flange (6) and the outer peripheral surface of the rear flange (7); a protruding part (11) is formed at the end of the front flange (6) and extends out from the meshing tray (5) in the extending direction of the front flange (6).

An imaging system uses a multi-view reflector (MVR) to simultaneously measure the three-dimensional (3D) position and orientation of a light emitter. The MVR is positioned at a back focal plane (BFP) of a light collecting optical system, and uses pyramid reflectors and / or conical reflectors to reflect light in at least two regions of the BFP to at least two detection channels of a detector. The at least two detection channels produce images that are used to determine the 3D position and orientation of a light emitter. The system may be used, for example, to image the structure of molecules or organelles in a cell, track the movement of molecules in a cell, or to study the interaction of molecules within a cell.

In a vehicle lamp in which a light emitter, a light blocking portion, and the reflector's reflecting surface are arranged close to each other in a narrow space partitioned by the reflecting surface of the reflector and a substrate, a temperature rise of the light emitter is suppressed. [Solution] A vehicle lamp 1 includes a first light emitter 411 and a second light emitter 412, a substrate 42 on which the first light emitter 411 and the second light emitter 412 are provided, a first base portion 21A to which the substrate 42 is attached, a reflector 30 that reflects light emitted from the first light emitter 411 and the second light emitter 412 toward the front of the lamp, and a first light-shielding wall 211 and a second light-shielding wall 212 that are arranged to protrude from the first base portion 21A toward the reflector 30 and further forward of the lamp than the first light emitter 411 and the second light emitter 412, and that block light emitted from the first light emitter 411 or the second light emitter 412 toward the front of the lamp. The first light-shielding wall 211 and the second light-shielding wall 212 rise from the first base portion 21A toward the reflector 30 so as to be inclined toward the front of the lamp.

This invention relates to the field of laser positioning drilling, particularly a laser positioning cable bracket drilling device, comprising a main frame; two drilling machine mounting frames, both mounted on the main frame; two drilling machines, each mounted on a separate mounting frame; and four horizontal light emitters, with two emitters symmetrically mounted on each mounting frame. The laser lines emitted by the two emitters on the same mounting frame overlap to form a single laser line, and the laser lines emitted by the emitters on the two mounting frames are parallel. The two drilling machines can operate side-by-side simultaneously, with the two laser lines passing through the centers of the two drilling positions. This invention enables efficient positioning drilling.

A stress luminescence measuring device (100) includes an excitation light source (50), an imaging device (60), optical filters (F1, F2), and a processing device (70). The excitation light source (50) is configured to irradiate an excitation light to a stress luminescence body (90) before and during application of an external force to the stress luminescence body (90). The imaging device (60) images light emitted by the stress luminescence body (90). The optical filters (F1, F2) remove an excitation light component from an image. The processing device (70) calculates a stress luminescence image representing stress luminescence of the stress luminescence body (90) when the external force is applied, based on an image obtained by the imaging device (60).

The present disclosure provides a light-emitting device and a display device, the light-emitting device comprising a plurality of functional layers stacked in sequence, the plurality of functional layers comprising an anode, a hole transport layer, an electron blocking layer, a light-emitting layer, a hole blocking layer, an electron transport layer and a cathode, the light-emitting layer comprising at least two light-emitting bodies, different light-emitting bodies corresponding to different color sub-pixels; the light-emitting device further comprising at least one energy level transition film layer, the energy level transition film layer being arranged between at least one light-emitting body and the hole transport layer and / or the hole blocking layer, wherein the energy band gap difference between two functional film layers adjacent to the energy level transition film layer is greater than a predetermined value, and the energy level of the energy level transition film layer is between the two functional film layers adjacent thereto. The light-emitting device and the display device provided by the embodiments of the present disclosure can improve the light-emitting efficiency of the light-emitting body, so as to improve the problems such as poor display caused by the difference in light-emitting characteristics of RGB three sub-pixels.

The present invention provides an elevator positioning method and an elevator positioning device that can suppress a decrease in the accuracy of positioning the landing threshold on each floor. [Solution] In the elevator positioning method, in the target floor setting step S5, the floor directly above the reference floor where the positioned landing sill is located is designated as the target floor. In the sill-to-sill positioning step S6, the target sill 3b of the target floor is positioned using the reference sill 3a of the reference floor as a reference. The sill-to-sill positioning step S6 includes a light emitter step, a light receiver step, and an adjustment step. In the light emitter step, a light emitter 51 is attached to the reference sill 3a, and in the light receiver step, a light receiver 52 is attached to the target sill 3b. In the adjustment step, after the light emitter step and the light receiver step, the position of the target sill 3b relative to the reference sill 3a is adjusted based on the amount of light received by the light receiver 52, which receives the laser light emitted from the light emitter 51.

The utility model discloses a log gauge system which comprises a camera, a moving mechanism and one or more light emitters. The camera is used for shooting images of a plurality of log end faces in a view finding area; the moving mechanism at least comprises a driving mechanism and one or more moving blocks; the driving mechanism drives the moving block to do reciprocating motion; the light emitter is fixedly connected with the moving block; the light emitter is used for projecting light lines to a plurality of log end faces in the view finding area; when the moving mechanism drives the light emitter to move, light lines projected by the light emitter gradually and completely scan the end faces of all the logs, the camera records the scanning process, and a scanning process image shot by the camera is used for extracting the outline of the end faces of the logs and calibrating the size of the end faces of the logs.