164 results about "Light sensitive" patented technology

Provided are multi-wavelength phototherapy devices, systems and methods for the treatment of a disorder or disease, including multi-wavelength low level light therapy (“PBM”), in particular to multi-wavelength PBM and other phototherapy systems and methods for improving functionality in and / or restoring functionality to a cell and / or tissue through the coordinated and targeted delivery to the cell or tissue of two or more doses of light having distinct wavelengths, wherein the two or more doses of light, when delivered in a coordinated fashion, can stimulate the activity of two or more light sensitive factors that, when activated, provide and / or enhance a desired target cell functionality. Ophthalmic phototherapy devices, systems, and treatment methods to expose an eye to selected multi-wavelengths of light to promote the healing of damaged or diseased eye tissue. The devices include a housing having an interior; an eyepiece disposed on the housing and configured and arranged for placement of an eye of the patient adjacent the eyepiece; a first light source producing a first light beam having a first therapeutic wavelength and disposed within the housing; a second light source producing a second light beam having a second therapeutic wavelength and disposed within the housing, where the second therapeutic wavelength differs from the first therapeutic wavelength by at least 25 nm.

The disclosed invention relates to a method for processing image data of an image sensor comprising a matrix of light sensitive elements and a plurality of lens elements and / or filter elements arranged in a pixel matrix in front of a finer sub-pixel matrix of light sensitive elements. A group of light sensitive elements are placed behind a common lens element and / or a common filter element to provide sub-pixel values for a respective position in the pixel matrix. Said image sensor is adapted to capture image data for a plurality of views, wherein each view comprising a matrix of a selected group of sub-pixel values of the pixel matrices captured by the matrix of light sensitive elements.According to the invention, for each captured view of the image, first variations of sub-pixel values in the respective view are determined separately from other views of the same image. Second variations of sub-pixel values related to the same position in the pixel matrix behind a respective lens element and / or filter element are determined in a set of views of the same image. The image data for the image are processed by use of the determined first and second variations.

The invention discloses a Si-based composite microstructure photoelectric detector and a forming method thereof, and relates to the technical field of photoelectric detection. The Si-based composite microstructure photoelectric detector comprises a signal acquisition first terminal, a light enhancement absorption microstructure and a light transmissible signal acquisition second terminal. The enhanced light absorption microstructure is composed of a short-wave-band visible light enhanced absorption circular light sensitive area, a middle-wave-band visible light enhanced absorption inner ring light sensitive area and a long-wave-band visible light enhanced absorption outer ring light sensitive area. According to the invention, the composite light sensitive unit with an eagle-eye bionic structure is designed, and low reflection and high absorption of light of different wavebands are realized by regulating and controlling the geometric shapes and arrangement modes of the rod-shaped, prismatic table-shaped and conical subunits in the microstructure, so that the light response characteristic of the photoelectric detector is improved.

A LIDAR system includes at least one laser light source, at least one light-sensitive detector including a plurality of pixels, and at least one processor configured to cause the at least one laser light source to project laser light toward a field of view of the LIDAR system, generate a point cloud including distance information relative to objects in the field of view of the LIDAR system based on output signals generated by the at least one light-sensitive detector in response to received laser light return signals reflected from the objects in the field of view, and generate an image representative of at least a portion of the field of view of the LIDAR system based on output signals generated by the at least one light-sensitive detector in response to non-laser light incident upon the at least one-light sensitive detector. The processor is configured to compare the point cloud to the image to detect whether inconsistencies exist between representations in the point cloud and corresponding representations in the image of objects from the field of view, and, in response to detection of one or more inconsistencies between representations in the point cloud and corresponding representations in the image of objects from the field of view, adjust one or more aspects of the generated point cloud to provide an updated point cloud.

An optical device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, a light sensitive component (e.g., a photodetector) in the dielectric layer and coupled to the waveguide, and a plurality of light isolation structures in at least one of the substrate or the dielectric layer and configured to prevent stray light from reaching the light sensitive component. In some embodiments, a light isolation structure in the plurality of light isolation structures includes two opposing sidewalls and a filling material between the two opposing sidewalls. The two opposing sidewalls include an optical isolation layer. The filling material is characterized by a coefficient of thermal expansion (CTE) matching a CTE of at least one of the substrate or the dielectric layer.

The invention provides a preparation method of an acoustic / photosensitizer-manganese dioxide nanoparticle and a product thereof. According to the method, firstly, a potassium permanganate reduction method is adopted to precisely synthesize the high-purity MnO2 nano-substrate, and according to the method, the size uniformity and dispersion stability of nano-particles can be precisely controlled by regulating and controlling the pH value and temperature of a reaction system and the concentration of a reducing agent. On the basis, amphiphilic high-molecular polyethylene glycol-polycaprolactone (PEG-PCL) is modified on the surface of the MnO2 nanometre. The whole preparation process is green and mild, and complex equipment is not needed; the reaction conditions are mild, nanoparticles are uniform, and the acoustic / photosensitizer can be combined and applied to an imaging technology to realize real-time monitoring.

The invention discloses an application of a self-driven perovskite photoelectric detector in a visible light sensitive chip. The self-driven perovskite photoelectric detector comprises an electrode, a first charge transport layer, a second charge transport layer and a perovskite layer, wherein the perovskite layer is a thin film of an interdigital structure formed by low-dimensional and three-dimensional perovskite, and the low-dimensional perovskite is any one or a combination of more of zero-dimensional perovskite, one-dimensional perovskite and two-dimensional perovskite; the first charge transport layer is one or a combination of a hole transport layer and an electron blocking layer, and the second charge transport layer is one or a combination of an electron transport layer and a hole blocking layer; or the first charge transport layer is one or a combination of more of the electron transport layer and the hole blocking layer, and the second charge transport layer is one or a combination of more of the electron transport layer and the hole blocking layer. According to the perovskite photoelectric detector, the problem of limited application caused by insufficient visible light detection performance of the existing silicon-based and perovskite visible light detectors is solved.

The invention discloses a visible light positioning method based on a single light source base station and double photosensitive position detectors. The method comprises: constructing a visible light positioning system; defining a world coordinate system, a PSD coordinate system and a PSD imaging coordinate system; calibrating two PSD internal parameters in the visible light positioning system by using a Zhang Zhengyou calibration method and an asymmetric dot calibration plate; the world coordinates of the LED light source and the external parameters of the PSD are calibrated; and determining the real-time coordinates of the mobile carrier in the world coordinate system. The method has the advantages that the double PSD receivers and the single light source base station are used for positioning the mobile carrier, positioning coordinate calculation can be carried out as long as the mobile carrier loaded with the double PSD receivers is located in the coverage area of one light source base station, operation is safe, easy and convenient, the degree of dependence on the light source density is reduced, and the applicability of the visible light positioning technology is enhanced.

A camera system is described, comprising: a detector array comprising a plurality of light sensitive pixels; an encoder mask comprising an array of a plurality of encoders, each of said plurality of encoders comprises an array of a plurality of similar unit cells; and an array of lenses comprising a plurality of optical lenses aligned with said array of plurality of encoders and positioned for imaging input light onto said plurality of encoders. Wherein the camera system is configured to divert collected light components collected from a scene onto each of said plurality of optical lenses with respective angular shift, providing that each lens collects light with a respective angular range.

A camera system and a corresponding encoder mask are presented. The camera system comprises: a detector array comprising a plurality of light sensitive pixels, an encoder mask comprising an array of a plurality of similar unit cells having selected encoder pattern, and a lens arrangement comprising one or more optical lenses positioned for imaging input light onto said encoder mask. Each of the plurality of similar unit cells carries an encoding pattern having at least first and second axes of symmetry. Alternatively, or additionally, the unit cells of said encoder mask are larger than a diffraction limited spot defined by the lens arrangement and the encoder mask is displaced from image plane defined by the lens arrangement thereby allowing for optical spot to cover a unit cell of said encoder mask.

The invention relates to the technical field of image recognition, in particular to a wild animal behavior recognition method and system based on visual recognition. The method comprises the following steps: acquiring continuous image frames, analyzing gray direction changes of pixel blocks in adjacent frames, extracting low-photosensitive texture features and forming a texture change track; then fusing the texture trajectory with the geometric offset trend of the animal contour edge points to generate a behavior dynamic fusion feature capable of representing the action direction and intensity; and carrying out continuity calculation on the fusion features, and judging whether the action meets a behavior triggering condition based on a change continuity index, thereby realizing automatic identification and output of the wild animal target behavior. According to the method, the texture change track and the contour geometric deformation direction are fused, stable recognition of continuous actions under the low-light condition is achieved, and the wild animal behavior recognition result is more accurate and reliable and has the quantitative judgment capacity.

There is provided an integrated device for wavelength dependent detection of light, comprising: a concentrating element comprising a collecting end and a transmitting end, and configured to collect light incident at the collecting end, and to concentrate the light at the transmitting end; a multimode waveguide forming an extension from a receiving end to a distributing end, and surrounded by a host medium along the extension, wherein the transmitting end is coupled to the receiving end, the waveguide being configured to receive the light from the concentrating element at the receiving end, wherein the waveguide and the host medium are configured to propagate light to form a light pattern at the distributing end, wherein a distribution of the light pattern across the distributing end is dependent on wavelength of the light; a plurality of light sensitive elements arranged such that different light sensitive elements receive different portions of the light pattern at the distributing end for wavelength dependent detection of light.

An imaging device includes light sensitive locations that are separately sensitive to light received at a surface with respect to a portion of a sample associated with the surface, the light sensitive locations having a resolution of 5 microns or smaller. There is a device to associate the portion of the sample with the surface. The imaging device and a distance of the portion of the sample to the light sensitive locations are such that usable useful image of the portion of the sample can be acquired directly by operation of the imaging device.An imaging device can include both the light source locations and the light source locations and the light sensitive locations.

The invention discloses a light spot position sensor for alignment of a transport vehicle and an alignment method thereof, the light spot position sensor is used for alignment adjustment of the transport vehicle, the light spot position sensor comprises a mounting plate and one or more rows of light-sensitive elements mounted on the mounting plate, and each row comprises a plurality of light-sensitive elements; a light spot position sensor is installed on one face of two adjacent moving faces, a light spot emitter is installed on the other face of the two adjacent moving faces, light spots emitted by the light spot emitter irradiate a photosensitive element of the light spot position sensor, and the light spot position sensor collects signals. The detection precision of the light spot position sensor is improved by utilizing one or more rows of light sensitive elements so as to meet the design requirement, and the vehicle alignment method based on the light spot position sensor is simple, effective and cost-saving.

The invention relates to a heat and light sensitive tissue scaffold suitable for the growth, proliferation and organization of the cells in the technical field of tissue engineering, which is endowed with intelligent behavior and thus has a dynamic structure, and a method for producing the same.

Provided are multi-wavelength phototherapy devices, systems and methods for the treatment of a disorder or disease, including multi-wavelength low level light therapy (“PBM”), in particular to multi-wavelength PBM and other phototherapy systems and methods for improving functionality in and / or restoring functionality to a cell and / or tissue through the coordinated and targeted delivery to the cell or tissue of two or more doses of light having distinct wavelengths, wherein the two or more doses of light, when delivered in a coordinated fashion, can stimulate the activity of two or more light sensitive factors that, when activated, provide and / or enhance a desired target cell functionality. Ophthalmic phototherapy devices, systems, and treatment methods to expose an eye to selected multi-wavelengths of light to promote the healing of damaged or diseased eye tissue. The devices include a housing having an interior; an eyepiece disposed on the housing and configured and arranged for placement of an eye of the patient adjacent the eyepiece; a first light source producing a first light beam having a first therapeutic wavelength and disposed within the housing; a second light source producing a second light beam having a second therapeutic wavelength and disposed within the housing, where the second therapeutic wavelength differs from the first therapeutic wavelength by at least 25 nm.

The invention provides a clamping assembly, a test machine and an execution mechanism, and the clamping assembly comprises a substrate which comprises a chip placement area for bearing a chip; the chip placing area comprises a light-transmitting area corresponding to the light-sensitive area of the chip; the pressing plate is arranged on one side of the substrate and is configured to be matched with the substrate to position the chip; the pressing plate comprises a first pin assembly and a second pin assembly; the first pin assembly is configured to be conductively connected with a pin of the chip; the second pin assembly comprises a switching pin; the substrate further comprises an avoiding area used for avoiding the second pin assembly. Through the cooperation of the substrate and the pressing plate, the chip can be placed in an inverted mode, bottom lighting irradiation can be achieved, transformation of a testing machine and an executing mechanism can be reduced, and high universality is achieved.

In one embodiment, a ladar system includes a laser transmitter with at least one semiconductor laser having a pulsed laser light output. A laser drive circuit is connected to said at least one semiconductor laser and adapted to electrically drive said at least one semiconductor laser in a predetermined sequence. A laser beam steering mechanism is adapted to scan the pulsed laser light output sequentially through the field of view. A two-dimensional array of light sensitive detectors receive reflected light and an integrated circuit calculates a direct time of flight distance measurement.

The invention relates to the technical field of bathroom cabinet light control, and discloses a bathroom cabinet light intelligent control method and system based on distance and light induction, and intelligent management of a bathroom cabinet lighting system is realized through a microwave sensor and a light sensitive element. When no one uses the lamp, the lamp is in an energy-saving standby state, and all lights are extinguished; once someone approaches, the microwave sensor detects that the human body enters a preset range, the lower cabinet lamp and the display screen are automatically lightened, and the mirror cabinet light is intelligently linked. A user can select a sunlight mode or an indoor light mode through a touch key, and the bathroom cabinet lighting system adaptively adjusts the initial brightness according to the ambient light intensity. In addition, when the user approaches the mirror within a certain distance and stays for more than a set time, the brightness of the mirror front lamp is automatically increased to the maximum, so that a better visual effect is provided. And if the activity is not detected in a period of time, the standby state is automatically returned, so that the optimization balance of energy conservation and user experience is realized.

The present application relates to the field of quantum computing, in particular to a kind of quantum bit computer, including visible light signal generator, visible light detector, quantum processor, signal receiver and signal processing end;The visible light signal generator is used to generate corresponding visible light signal according to control instruction, and the visible light signal is sent to the visible light detector;The visible light detector is used to generate corresponding processor control microwave signal according to the visible light signal received;The signal receiver is used to receive the calculation feedback microwave signal of the quantum processor, and the calculation feedback microwave signal is sent to signal processing end.The present application reduces the heat conduction from room temperature zone to low temperature zone, increases the available power redundancy of low temperature zone device, while the frequency of visible light is higher, and the modulation capacity is stronger, cooperate with only visible light sensitive silicon-based photo avalanche diode, can improve the signal-to-noise ratio of information transmitted to the quantum processor.

The invention provides a medical optical positioning label identification and positioning method based on computer vision, and relates to the technical field of optical positioning, and the method comprises the steps: segmenting a collected image into a foreground image and a background image based on an H component analysis method; performing graying and bilateral filtering processing on the foreground image; carrying out edge extraction on the processed foreground image, and constructing an ROI region; performing reflective mark circle feature enhancement on the ROI region by adopting a multi-algorithm feature enhancement method, and communicating a Blob region by adopting a morphological closed operation method; performing Hough circle fitting on the enhanced image to obtain the position of a reflective mark circle; and calculating the coordinate center of the reflective mark circle, and converting the coordinate center into world coordinates. The method provided by the invention has stronger robustness for an actual medical scene, and can cope with the conditions of light reflection, uneven illumination and the like. In addition, by means of the method, the recognition range of a current medical image positioning target can be effectively expanded, and the method is not limited to a near-infrared light sensitive target.

A printing apparatus has a sensor unit including a light emitter, a plurality of light sensitive units that detect reflected light of light emitted from the light emitter, and an aperture member provided between the plurality of light sensitive units and a detection target that includes an opening for limiting input of the reflected light to a light sensitive unit. The printing apparatus causes the sensor unit to scan relative to the detection target, and, based on a differential signal of signals from a first light sensitive unit and a second light sensitive unit, detects an edge of a printing medium in the detection target. The plurality of light sensitive units are arranged to be aligned in a scanning direction, and the first and second light sensitive units detect the reflected light through the same opening of the aperture member.

An optical network unit may include a light sensitive unit suitable for receiving NRZ and / or PAM signals effectively. The optical network unit may include a laser transmission unit for providing NRZ and / or PAM signals effectively.

The utility model relates to the technical field of photosensitive material plate production equipment, in particular to a photosensitive material plate oxidation power supply which comprises an oxidation power supply body, the oxidation power supply body comprises a frame and a coil installed on the frame, the oxidation power supply further comprises a heat dissipation water pool, and the heat dissipation water pool is connected with a circulating water pipe. The upper surface and the lower surface of the oxidation power supply body are respectively provided with a heat dissipation seat, coiled pipelines are arranged in the heat dissipation seats, the pipelines are heat dissipation seat pipelines, and the circulating water pipe is communicated with the heat dissipation seat pipelines; the inside of the blowing plate is a hollow core, the hollow core is a hollow core of the blowing plate, a plurality of small holes are formed in the blowing plate, a blower is communicated with the hollow core of the blowing plate, and the blower is connected with a power supply through a control device. The photosensitive material plate oxidation power supply has the advantage of good cooling effect.

The utility model discloses an electric feeder and relates to the technical field of material transportation, a light-emitting device and a photosensitive receiving device are installed on the two sides of a material taking opening of a material belt in an opposite emission mode, the change of light emitted by the light-emitting device to the photosensitive receiving device is shielded through a suction nozzle in the material taking process, and the feeder is controlled to conduct feeding through a photoelectric conversion plate and a control panel. The feeder can be triggered to feed only by taking the material through the suction nozzle, so that tedious connection with a chip mounter is omitted, and meanwhile, the problem that the feeder cannot be compatible for use due to different protocols is solved.

A tracking system includes a processor, a controller, two or more light sources, and a dynamic vision sensor (DVS). The light sources have a known configuration of the controller relative to each other and are turned on and off in a predetermined sequence. The DVS includes an array of light-sensitive elements having a known configuration. The DVS outputs a signal corresponding to an event at a corresponding photosensitive element in the array in response to a change in light from the light source. The signal is indicative of a time of the event and a position of the corresponding photosensitive element. The processor determines an association between each event and one or more of the light sources and determines occlusion of one or more of the light sources based on the association. The processor estimates a position of an object using the determined occlusion, the known light source configuration, and the position of the corresponding light sensitive element in the array.

An optical arrangement for reducing reflections in camera includes image sensor with a light-sensitive surface and a filter arranged at a first distance from the light sensitive surface along an optical axis of optical arrangement. The filter includes a first curved surface facing a light-sensitive surface, and a second surface opposite to the first curved surface. The light-sensitive surface is configured to receive light and reflect received light towards the filter. The filter is configured to reflect light between a first curved surface and a second surface inside the filter. Reflections between the filter and the light sensitive surface are reduced.

A transparent display (1) with lensless imaging capability comprises: display pixels (11) configured to generate a display image; a light emitter (12) configured to illuminate the scene or object (2) with electromagnetic radiation outside the visible range; a light sensitive element (21) configured to capture electromagnetic radiation received from a scene or object (2) and to generate a light signal depending on the captured electromagnetic radiation; and an optical modulator (31) configured to transmit the electromagnetic radiation in the visible region and to modulate the electromagnetic radiation in the illumination wavelength range. The display is substantially transparent in the visible region.

The invention provides a detector pixel structure and a preparation method thereof, and relates to the technical field of detector pixel structures. The detector pixel structure comprises a substrate, a supporting composite layer and a light composite layer, the supporting composite layer comprises a first conductive layer, a second conductive layer and a first insulating layer, the first conductive layer and the second conductive layer are stacked, the first insulating layer is arranged between the first conductive layer and the second conductive layer, and the first conductive layer is connected with and electrically conducts the substrate and a light sensitive layer of the light composite layer. The second conductive layer is connected with and electrically conducts the substrate and the light sensitive layer of the light composite layer, so that signals can be transmitted to the substrate through one supporting composite layer, the size of the detector pixel structure can be reduced, the extension length of the supporting composite layer is prolonged within the limited area range of the detector pixel structure, and the detector pixel structure is more compact. The working performance of the detector pixel structure is improved.

The present disclosure relates to an electronic device (12) for a camera module (1) having a housing (2) forming a light entrance opening (4), the electronic device comprising: a substrate (14) having a first side (18) and a second side (20), the first side being arranged in the housing (2) to face the light entrance opening (4) and the second side being opposite the first side (18); and an image sensor (16) having a photosensitive portion, designed as a flip-chip, and mounted to the second side (20). The substrate (14) is formed to be translucent at least in the region of the photosensitive portion of the image sensor (16). The disclosure further relates to a camera module (1) comprising the electronic device and a method for manufacturing the electronic device (12).