125 results about "Light reflectance" patented technology

The utility model provides a glass assembly, a window assembly and a vehicle. The glass assembly includes: a glass body; the first functional layer is suitable for adjusting the visible light reflectivity and is arranged on one side of the glass body; and the second functional layer is suitable for adjusting haze and is arranged on one side of the first functional layer. According to the glass assembly, the first functional layer with the visible light reflectivity adjusting function and the second functional layer with the haze adjusting function are integrated, and the visible light reflectivity and / or the haze can be adjusted according to different application occasions and user requirements, so that the glass assembly has multiple functions, the user experience is improved, and the cost benefit requirement is met.

To provide a power generation module and a window in which a lead wire is inconspicuous when viewed from the indoor side.SOLUTION: A power generation module according to the present disclosure includes a first substrate having translucency, a transparent second substrate facing the first substrate, a first electrode layer provided on the first substrate, a semiconductor layer stacked on the first electrode layer, a second electrode layer stacked on the semiconductor layer, a lead wire provided on the first electrode layer, and a reflection suppression layer located between the lead wire and the second substrate so as to cover the lead wire in plan view. The optical reflectance of the reflection suppressing layer is lower than the optical reflectance of the lead wire. A window according to the present disclosure includes the power generation module and a fixture for fixing the power generation module to an installation object.SELECTED DRAWING: Figure 2

The present invention relates to an optical lens comprising a substrate and a multi-layer antireflection coating provided on at least one of the main surfaces of the substrate and comprising a stack of at least one layer having a high refractive index and at least one layer having a low refractive index, a spectral reflectance curve of the multi-layer antireflection coating for an angle of incidence in the range of 0 DEG to 15 DEG has a reflection peak centered on a wavelength in the range of 435-450 nm and having a maximum reflectance of less than or equal to 30% and a full width at half maximum of less than or equal to 90 nm, and a local reflectance minimum in the range of 380-420 nm of less than or equal to 2% and a multi-layer antireflection coating for the at least one major surface, the multi-layer antireflection coating providing the at least one major surface with: for an angle of incidence in the range of 0 to 15 degrees, the present invention relates to a light-emitting device comprising a light-emitting element, a light-emitting element, an average light reflection factor Rv of 380 nm to 780 nm of less than or equal to 2.5%, an average blue light reflection factor RmB1 of greater than or equal to 15% in the wavelength range of 420 nm to 450 nm of greater than or equal to 15%, an average blue light reflection factor RmB3 of greater than or equal to 15% in the wavelength range of 440 nm to 460 nm of greater than or equal to 15%, and a ratio RmB1 / RmB3 of less than or equal to 1.

The invention discloses a semiconductor resistivity nondestructive testing method and system based on modulation light reflection, relates to the technical field of semiconductor resistivity detection, and aims to accurately measure a modulation component delta R / R of light reflectivity through a light reflection modulation signal so as to calculate the semiconductor resistivity and further realize quantitative measurement of the semiconductor resistivity. The sensor has ultrahigh sensitivity, can detect tiny carrier concentration change, and is very sensitive to electrical properties of surface and near-surface areas; meanwhile, the spatial resolution is high, and the micron-scale light spot at the sample is suitable for micro-area measurement; a complete optical method does not cause any damage to the sample; various types of samples can be measured; the measuring speed is fast, and the system can be easily integrated in a production line for real-time monitoring.

The application relates to the technical field of intelligent household appliances, and discloses a method for heat dissipation of an air conditioner, which comprises the following steps: determining whether freezing phenomenon exists at a drain outlet according to the change condition of the light reflectivity at the drain outlet; in the case that freezing phenomenon exists, starting a semiconductor heat dissipation fin and increasing the rotating speed of a circulating pump body; and in the case that freezing phenomenon does not exist, adjusting the rotating speed of the circulating pump body according to the temperature of an aluminum base plate. Heat is efficiently guided to the outdoor unit chassis through a heat conduction medium in a heat conduction pipeline to perform ice removal or defrosting, the clogging problem caused by the icing or frosting of the drain outlet is avoided, the utilization rate of energy is improved, the flow rate of the heat conduction medium in the heat conduction pipeline is adjusted based on the overall temperature of the heating component, the heat conduction efficiency of the heat conduction pipeline is matched with the overall temperature of the heating component, and the electric control box of the air conditioner can be timely heat dissipated. The application further discloses a device for heat dissipation of an air conditioner, an air conditioner and a storage medium.

A light scattering device is provided which is capable of suppressing heat generation in and around a light-exiting part and simultaneously limiting an irradiation area. A light scattering device 1 according to the present invention is provided with an optical fiber 10 comprising a core 10a positioned radially in the center and a sheath 10b positioned at the outer periphery of the core 10a, wherein the light scattering device 1 causes light entering from a proximal end of the optical fiber 10 to be emitted from a distal side T of the optical fiber 10.The optical fiber 10 is made of plastic and comprises: an optical transmission element 11 for transmitting the light entering from the proximal end to a distal end; and a light exit element 12, which allows the light transmitted by the light transmission element 11 to be emitted from an outer circumferential surface on the distal side T. The light exit element 12 is treated to suppress heat generation and comprises a reflective element 21 with a light reflectance of 80% or more in an area that does not form the light exit aperture 22 on the outer circumferential surface of the light exit element 12 and in a distal end surface TE. The reflective element 21 contains particles with light-reflecting properties, wherein the particles contain barium sulfate.

The embodiment of the invention relates to the technical field of vehicle cleaning, and discloses a vehicle surface bird droppings cleaning method and device, electronic equipment, a medium and a vehicle. According to the method, the light reflectivity of at least one wave band is collected as the background reference value, the second spectrum is determined based on the background reference value, the subsequent bird droppings detection efficiency can be effectively improved, the light absorptivity corresponding to the first preset wave band and the adjacent wave band is calculated on the basis, and the detection accuracy is improved. And when the light absorptivity of the first preset wave band is greater than the preset absorptivity and the light absorptivity of the adjacent wave band satisfies the preset condition, determining that uric acid exists, identifying the bird droppings in the to-be-detected area based on the light absorptivity, and performing secondary determination by using the bird droppings verification model, thereby further improving the accuracy of bird droppings detection. The problem that bird droppings attached to the vehicle body cannot be cleaned in time at least is solved, the vehicle body is guaranteed to be clean, and the vehicle body using experience of a user is improved.

This invention provides a liquid crystal light control element with which it is possible to achieve both an antiglare function and a heat generation suppression function. According to an embodiment, this liquid crystal light control element is characterized in that: the element includes a pair of transparent electrode substrates having a transparent electrode layer, and a light control layer disposed inside the transparent electrode substrates and containing liquid crystal molecules; the light control layer contains a dichroic dye; and the visible light transmittance of the transparent electrode substrates is 89% or less, and the visible light reflectance of the transparent electrode substrates is 6.5% or more.

A non-sintering technique is used to prepare a fluorescent thin film for laser lighting. This fluorescent film comprises a 0.5–2 mm thick aluminum substrate with a visible light reflectance greater than 95%, and a 100–500 μm thick emitting layer on the aluminum substrate. The emitting layer is obtained by mixing a fluorescent material and a fixative at 40–80 °C using a non-sintering technique. Under blue light excitation at 450 nm, the light emitted by the emitting layer mixes with unabsorbed blue light to produce white light with a color temperature range of 3000 K–4500 K and an Ra value of 90–98. The fluorescent thin film for laser lighting prepared by this invention has a simple overall structure and a convenient preparation process; the nitride red fluorescent material is not sintered, thus greatly preserving its luminescent properties; and the preparation process does not use water, which would decompose the nitride red fluorescent material; the fluorescent film is directly coupled to a highly thermally conductive aluminum plate, thereby enabling the fluorescent film to be used in laser lighting.

The application discloses an endoscope image electronic staining method, device, system and storage medium. The method extends an original wideband RGB image into a P-dimensional wideband image, and for each pixel point of a current frame: based on a current image block, a reference image block set is obtained by searching for reference image blocks in the current frame and K frames before and after the current frame; according to the similarity distance between each reference image block and the current image block, the image attenuation weight of each image block is determined, the image blocks are fused and weighted, and the RGB light reflectivity estimation data of the pixel point is obtained; based on the calibration matrix of the wideband image and the narrowband image, the narrowband light image signal data corresponding to the estimation data is obtained; based on the narrowband light image signal data of each pixel point, a narrowband image of the current frame is generated, and an electronic staining image is synthesized based on the narrowband image. The approximate imaging result of narrowband light illumination can be realized through software, so that better lesion observation effect is obtained at low cost.

This technology provides a way to easily perform decorative coloring on a substrate. [Solution] The decorative film deposition apparatus comprises a chamber, a titanium particle emission unit including a titanium target disposed in the chamber and which imparts energy to the titanium target to release titanium particles, a gas supply unit connected to the chamber and which supplies a reactive gas, and a control unit which controls the gas supply unit. The gas supply unit has a carbon-containing gas supply unit which supplies a carbon-containing gas containing carbon atoms into the chamber, a nitrogen-containing gas supply unit which supplies a nitrogen-containing gas containing nitrogen atoms into the chamber, and a flow rate adjustment unit which can adjust the flow rate of the carbon-containing gas with respect to the flow rate of the nitrogen-containing gas, and the control unit adjusts the flow rate of the carbon-containing gas with respect to the flow rate adjustment unit to adjust the visible light reflectance of the film formed on the object to be deposited.

The application relates to the technical field of silicone coating preparation, and discloses a preparation method and application of white fluorine-free photovoltaic coating. 1 )4, R 2 Si(OR 3 )3, R 4 2Si(OR 5 )2, R 6 Si(OR 3 )3 and R 4 Si(OR 5 )3 are hydrolyzed and polycondensated in mixed acid solution to obtain a silicone resin; 100 parts of the silicone resin is mixed with 20-100 parts of an organic silicon modified hydroxyl acrylic resin coating prepared according to a specific ratio and 50-200 parts of titanium white paste prepared according to a specific ratio, and the white fluorine-free photovoltaic coating is obtained. The white fluorine-free photovoltaic coating has good adhesion and adhesion force to a photovoltaic substrate, high hardness, good scratch resistance and aging resistance, and high light reflectivity.

The present invention provides a layered body with which it is possible to improve drawing speed.　The layered body comprises: at least three recording layers each capable of changing the color state thereof to a different color under near infrared laser light; and a diffuse reflection layer (21) disposed below the at least three recording layers. The total light reflectivity of near infrared light having a wavelength of 1080 nm that arrives at the diffuse reflection layer (21) from the at least three recording layers side is at least 93.0%.

The present invention provides a technology with which it is possible to easily perform decoration for causing a base material to develop a color. This decorative film formation device comprises: a chamber; a titanium particle discharge unit which includes a titanium target disposed in the chamber and applies energy to the titanium target so as to discharge titanium particles; a gas supply unit which is connected to the chamber and supplies a reactive gas; and a control unit which controls the gas supply unit. The gas supply unit has: a carbon-containing gas supply unit for supplying a carbon-containing gas that contains carbon atoms into the chamber; a nitrogen-containing gas supply unit for supplying a nitrogen-containing gas that contains nitrogen atoms into the chamber; and a flow rate adjustment unit which is capable of adjusting the flow rate of the carbon-containing gas with respect to the flow rate of the nitrogen-containing gas. The control unit adjusts the visible light reflectance of a film that is formed on a film formation object by adjusting the flow rate of the carbon-containing gas using the flow rate adjustment unit.

The invention discloses a semiconductor structure for wafer bonding and a method for improving wafer bonding alignment. The bonding mark of the semiconductor structure comprises a contrast enhancement layer and a first dielectric layer which are stacked in sequence, and the light reflectivity of the contrast enhancement layer is higher than that of the first dielectric layer. According to the method, accurate alignment and bonding of the wafer are realized by using the high-contrast bonding mark structure. By introducing the contrast enhancement layer with high reflectivity, such as a silicon nitride layer, into the bonding mark, the optical contrast of the mark is remarkably improved, so that the recognition precision of bonding equipment is improved, the alignment error is reduced, the subsequent process risk is reduced, and the product yield is effectively improved.

The invention discloses a control system of photoelectric equipment, and relates to the technical field of control of the photoelectric equipment, and the control system comprises a sensing module which is used for collecting a welding seam image, a temperature field, a vibration quantity and a light reflectivity of a welding area in real time; the intelligent decision module dynamically optimizes welding parameters based on the real-time data of the sensing module; the execution control module is used for controlling the laser generator, the robot or the linear module and the gas valve according to the welding parameters output by the intelligent decision module; the man-machine interaction module is used for information interaction between an operator and the system; the data storage and analysis module is used for storing all data in the welding amount process; according to the control system of the optoelectronic equipment, multi-dimensional and high-precision sensing of the welding state is achieved through multi-source sensor fusion and standardized sensing steps in combination with improved YOLOv8, Kalman-particle filtering and other algorithms, and a reliable data basis is provided for decision making.

This invention discloses a photovoltaic module manufacturing method and a photovoltaic module, comprising the following steps: Step 1, preparing multiple back-contact photovoltaic cells; Step 2, connecting adjacent back-contact photovoltaic cells using metal connecting strips, the metal connecting strips having a width of 2 mm to 8 mm and a thickness of 0.01 mm to 0.1 mm; Step 3, forming a reliable connection between the metal connecting strips and the back electrodes of the back-contact photovoltaic cells using a welding process; Step 4, using the metal connecting strips as a light-reflecting layer to increase the reflectivity of the back side of the back-contact photovoltaic cells to long-wavelength spectra, and the surface of the metal connecting strips being polished or coated with a reflective enhancement layer. This application utilizes a photovoltaic module manufacturing method that uses wide metal strip connections to increase back-side light reflectivity, thereby improving module power. The aim is to improve the back-side reflectivity to long-wavelength spectra by optimizing the cell connection structure, achieving light energy recovery and utilization, and thus improving module conversion efficiency.

The present application relates to the technical field of floor tile polishing, and specifically discloses a polishing control method, device, equipment and medium for a floor tile polishing robot, wherein the method comprises the following steps: in the process of polishing based on the movement of the polishing path of the floor tile polishing robot, obtaining the first light reflectivity information of the floor tile surface on the tail side of the floor tile polishing robot based on the reflectivity sensor; generating a light reflectivity curve according to the first light reflectivity information; analyzing the to-be-repaired polishing path segment and generating corresponding polishing repair parameters according to the change of the light reflectivity curve and the polishing path; and controlling the floor tile polishing robot to perform repair polishing on the to-be-repaired polishing path segment according to the polishing repair parameters. The method can determine the to-be-repaired polishing path segment and the polishing repair parameters to control the floor tile polishing robot to perform automatic repair polishing, thereby ensuring high consistency of the floor tile polishing process, eliminating the manual inspection and repair process, and greatly reducing the labor cost.

The invention relates to a mini-LED light panel used as a display and filled with reflective colloid to increase brightness, and to its mini-LED display. The light panel comprises a substrate, LED units, a first reflective colloid, and a second reflective colloid. The display comprises an assembled display panel and a frame. The LED units are arranged on the substrate and each contains a first and second LED or a first to third LED. The light emission angle of the LEDs is greater than or equal to 90 degrees. The extension lengths of the first to third LEDs in the X and Y axes are 25–500 µm. The extension length in the Y-axis is greater than or equal to the extension length in the X-axis. The first light compensation segment is formed between the LEDs of the LED unit.The second and third light compensation segments are formed between adjacent LED units in the X and Y axes. The second light compensation segment is larger than the first light compensation segment. The third light compensation segment is also larger than the second light compensation segment. The reflectivity of the first and second reflecting colloids relative to light wavelengths from 420 nm to 700 nm is greater than 50%, and the reflectivity of the first reflecting colloid is greater than that of the second reflecting colloid.

A thermoplastic resin composition including an aromatic vinyl-vinyl cyanide-acrylic cross-linked copolymer. The thermoplastic resin composition has a 60° gloss, as measured according to ASTM D523 using a gloss meter, of 25 or less, an impact strength of a ¼-inch-thick sample, as measured according to ASTM D256, of 15 kgf·cm / cm or more, and a light reflection coefficient of variation calculated by Equation 1 below of 1.5 or less. It may be possible to achieve a matte property even through injection molding.CLR=DL / ML[Equation⁢ 1]CLR is a light reflection coefficient of variation, DL is a standard deviation of luminous intensity, and ML is an average luminous intensity.

The invention relates to the technical field of coal detection and intelligent sorting, in particular to a coal impurity component online analysis method based on visible light reflection characteristics, which comprises the following steps: a feature extraction and evaluation step: acquiring a spectral image flow, extracting environmental interference features, and evaluating signal-to-noise ratio attenuation to calculate a spectral credibility index; a dynamic reconstruction step of activating the generative adversarial reconstruction network to generate a reconstruction spectrum view by using time sequence and neighborhood information in response to the fact that the index is lower than a threshold value; a mode switching decision-making step: verifying the authenticity of reconstruction, and dynamically switching between a precise classification mode and a survival bottom-taking mode based on a comprehensive evaluation result; in the closed-loop interception step, abnormal high-risk impurities are locked, an interception instruction is generated, and network parameters are updated through feedback; according to the invention, the problem of leak detection caused by reduction of the signal-to-noise ratio under severe working conditions is solved, and absolute interception of high-reaction large impurities is ensured.

Provided is a PSA sheet having limited light transmission with reduced PSA-entering light. A PSA sheet having a PSA layer is provided. The PSA layer comprising at least two species of colorants. The PSA layer has a light transmittance of 30% or lower and a light reflectance of 8% or higher.

A photodetection device includes a photodetection element and a package. The photodetection element includes a semiconductor substrate and a light absorption film. The light absorption film is provided on a region of at least a part of a region around a photodetection region on a principal surface of the semiconductor substrate. The light absorption film has a multi-layer structure including a light absorption layer, a resonance layer, and a reflection layer. At a wavelength of detection target light, a light transmittance inside the resonance layer is larger than a light transmittance inside the light absorption layer, and a light reflectance on a surface of the reflection layer is larger than a light reflectance on a surface of the resonance layer.

Provided is a projector. The number of components in a projector is reduced, and enlargement is suppressed. A projector is provided with: a first light source that emits first light; a second light source that emits second light having a wavelength band different from that of the first light; a first light guide element that has a first incident end to which the first light is incident and a first exit end to which the first light is emitted, the first light guide element having a first incident end to which the first light is incident and a first exit end to which the first light is emitted; a second light guide element having a second incident end to which the second light is incident, and a second exit end to which the second light is emitted, the second light guide element having a second incident end to which the second light is incident and a second exit end to which the second light is emitted; a first light modulation element that modulates the first light from the first light guide element; a second light modulation element that modulates the second light from the second light guide element; a light synthesis element that synthesizes the first light from the first light modulation element and the second light from the second light modulation element and emits the synthesized light; and a projection optical system that projects the light emitted from the light synthesis element. The spectral reflectance of the second light guide element is the same as that of the first light guide element.

The invention provides an anti-reflection black coating composition and an optical device, the anti-reflection black coating composition has good anti-reflection characteristics especially in the infrared region used in a LiDAR device and the like, and has excellent adhesion to the housing of the device mainly composed of aluminum. The present invention relates to an anti-reflection black coating composition containing a solvent, an epoxy resin, a cationic thermal reaction initiator, a black pigment, and a silica filler containing an air layer therein, the anti-reflection black coating composition being characterized in that when a cured and dried coating film is formed, the total light reflectance at an incidence angle of 8 DEG is measured, and the total light reflectance at an incidence angle of 8 DEG is measured. And the reflectance with respect to light having a wavelength of 1500 nm is 2.5% or less.

The utility model relates to measuring instrument technical field especially relates to a big area light reflectance difference compensation surveying appearance, include: reflectance appearance body, hollow fixed base is fixedly installed in the top of reflectance appearance body, the top swing installation of hollow fixed base has the rotating disc. The top fixed mounting of rotating disc has a plurality of object seat, hollow fixed base is fixedly installed in and is used for driving the drive motor of rotating disc autorotation. The utility model discloses through to the rotation of drive pipe, reaches the effect of the quick adjustment of probe height to solve the problem that the height of probe is adjusted properly in traditional technology and needs to loosen two screw rods in turn, can reach the quick assembly to the device to the utility model discloses, improves the practicality of device.

The present disclosure provides laminated glass capable of well propagating light inside the laminated glass provided with a light-absorbing intermediate layer. This laminated glass is provided with: a first glass plate (11) having a first main surface (21) and a second main surface (22); a second glass plate (12) having a third main surface (23) and a fourth main surface (24); a light-absorbing intermediate layer (13) disposed between the first glass plate (11) and the second glass plate (12); and a light scattering region (15) disposed closer to the fourth main surface (24) than the light-absorbing intermediate layer (13). The light scattering region (15) scatters light (31) incident from the light source toward the fourth main surface (24). The refractive index difference between the light-absorbing intermediate layer (13) and a member in contact with the light-absorbing intermediate layer (13) on the fourth main surface (24) side is 0.05 or more, the visible light reflectance measured from the fourth main surface (24) side is 15% or less, and the visible light transmittance measured from the fourth main surface (24) side in a region other than the light scattering region (15) is 30% or less.

The present application provides laminated glass and a projection system. The laminated glass is provided with a transparent area and an opaque area. A display area has an S-light reflection spectrum curve for S-polarized light that is incident at an angle of incidence of 70° and has a wavelength of 380-780 nm, wherein the S-light reflection spectrum curve has only one extremum point within a wavelength range of 450-650 nm, and has minimum S-light reflectance RLsmin at the extremum point. The laminated glass and the projection system provided in the present application can improve the contrast between a displayed image and a display background and achieve a higher color gamut to make image display clearer; in addition, the laminated glass further has high P-polarized light reflectance, a smooth P-polarized light reflection spectrum, and low S-polarized light reflectance, to achieve the effects of reducing the energy consumption of a projector, reducing reflection interference on a center console, and achieving reflective imaging that is neutral, has low color shift or is free from color shift, thus improving the display effect.

The application provides a bifacial photovoltaic module and a preparation method thereof. The bifacial photovoltaic module comprises at least a front encapsulation plate, a front transparent adhesive film, a cell piece layer, a back transparent adhesive film and a back encapsulation plate which are arranged in a stack, and a light reflection layer is further arranged between the cell piece layer and the back encapsulation plate. The light reflection layer comprises at least a first region and a second region. The cell piece layer comprises a plurality of interconnected cell strings, and each cell string is formed by connecting a plurality of cell pieces in series. The second region is arranged in a projection area of at least part of an edge area of a plurality of cell piece coverage areas on the light reflection layer, and the first region is arranged in a projection area of at least part of a non-cell piece coverage area on the light reflection layer. The front visible light reflectivity of the first region is higher than that of the second region, and the back visible light transmittance of the second region is higher than that of the first region. The bifacial photovoltaic module is additionally provided with the light reflection layer with a regional design, so that the front power generation is ensured, light leakage is avoided, and a high bifacial rate is maintained.

The present invention relates to a transmission optical system (1). According to the present invention, the transmission optical system (1) includes an optical base element (14) having a first surface (11) and a second surface (12), and an interferometric coating (13) on the first surface that provides the transmission optical system with an average visible light reflectance Rv of 2.5% or less, wherein the transmission optical system presents a residual reflection color by reflection on the first surface, and the transmission optical system includes a residual color identifier (21) partially based on the colorimetric coordinates of the transmission optical system in the CIELab color space and partially based on the colorimetric coordinates of the transmission optical system in the CIELUV color space.