27 results about "Reflectivity" patented technology

A computer-controlled system determines attributes of a frexel, an area of human skin, and applies an electrostatically charged modifying agent (RMA) at the pixel level, to make the skin appear more attractive. The system scans the frexel, identifies unattractive attributes, charges the RMA with an electrostatic charger, and applies the RMA, typically with an inkjet printer. The identified attributes relate to reflectance and may refer to features such as irregular-looking light and dark spots, age-spots, scars, and bruises. Identified attributes may also relate to the surface topology of the skin, for more precisely enhancing surface irregularities. Feature mapping may be used, for example to make cheeks appear pinker and cheekbones more prominent. The charged RMA can be applied in agreement with identified patterns, such as adding red to a red frexel, or in opposition, such as adding green or blue to a red frexel, according to idealized models of attractiveness.

A sheet-like pane bearing a low-maintenance coating on one surface and a low-emissivity coating on the opposite surface, wherein one of the low-maintenance coating and the low-emissivity coating has a single surface reflectivity of less than 3 times, and more than one-third, that of the other coating.

The invention belongs to the technical field of measurement and calibration, and discloses a laser ranging calibration device. The laser ranging calibration device comprises an experiment table, a laser emitter, a laser receiver, a data processor and a reflector controller are arranged on the experiment table, and the data processor is used for calculating the time difference between the moment when the laser emitter emits a laser signal and the moment when the laser receiver receives the reflected laser signal, calculating measurement distances and calibration values and then saving the corresponding calibration values. The invention further discloses a calibration method using the laser ranging calibration device. By means of the laser ranging calibration device, according to different reflectivities and different incidence angles, corresponding calibration values can be calculated and then saved, multiple groups of calibration data can be obtained, and in actual measurement, all thesaved data can be used for calibration.

The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 μm, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.

A laser light source comprises a semiconductor laser adapted for pulsed operation, a partially transmitting wavelength selective light reflector. The semiconductor laser comprises a front facet and a back facet. The front facet and the back facet define an internal laser cavity. The internal laser cavity comprises a laser active medium. The partially transmitting wavelength selective light reflector has a peak reflectivity within a gain bandwidth of said laser active medium. The wavelength selective light reflector and the back facet define an external laser cavity. A roundtrip time of light in the external laser cavity is about 20 nanoseconds or less. A full width half maximum bandwidth of the wavelength selective light reflector is adapted to accommodate at least 12 longitudinal modes of the internal laser cavity and at least 250 longitudinal modes of the external laser cavity.

Provided is a display device in which a defect by external light reflection is minimized in a non-display area. The display device includes a display panel and a touch unit arranged on the display panel. The display panel may include: a substrate including a display area and a non-display area arranged around the display area; an insulator including a valley portion, the valley portion being defined as an opening arranged along an outer side of the display area in the non-display area; and a display unit arranged in the display area and including a light-emitting element electrically connected to a thin film transistor. The touch unit may include a reflection prevention unit that overlaps the valley portion and is configured to reduce reflectivity of external light.

The invention relates to a plating method for an anti-reflection film with high transmittance and low reflectivity, wherein the method is the key technology of window glasses and filters of digital cameras, and the technology can further be applied in fields of radiation protection glasses, thermal insulation glasses, window glasses, solar energy utilization and the like. The method comprises the following steps in vacuum plating equipment: (1) pumping vacuum; (2) heating; (3) cleaning ions (Ar and O2); (4) plating SiO2; (5) etching under full oxygen atmosphere (only introducing O2); (6) plating TiO2; and (7) etching under full oxygen atmosphere (only introducing O2), and repeated performing the steps of (4)-(7) until the film system is completed. According to the present invention, the transmittance of the anti-reflection film in the optical wavelength region of 400-700 nm is improved without improvement of vacuum plating equipment requirements, and the reflectivity is further reduced.

A photoelectric conversion device in which photoelectric conversion in a light-absorption region in a crystalline silicon substrate is efficiently performed is provided. In the photoelectric conversion device, a light-transmitting conductive film which has a high effect of passivation of defects on a silicon surface and improves the reflectance oh a back electrode side is provided between the back electrode and the crystalline silicon substrate. The light-transmitting conductive film includes an organic compound arid an inorganic compound. The organic compound includes a material having an excellent hole-transport property. The inorganic compound includes a transition metal oxide having ah electron-accepting property.

The present invention relates to in vitro methods for determining efficacy of topical compositions on various skin color types. These methods involve providing an artificial skin apparatus configured to approximate the color and diffuse reflectance characteristics of a predetermined human skin color type. The artificial skin apparatus includes an artificial skin substrate combined with a color background, with the color background correlating to the human skin color type. A topical composition of interest is applied to the artificial skin substrate of the artificial skin apparatus and then pre-irradiated. The pre-irradiated topical composition is then analyzed using relevant experimental techniques or assays for at least one efficacy parameter, including, for example, anti-ageing, photoprotective, sun protective, UVA/UVB protective, UVAI protective, photo stabilizing, and photosensitizing activities and action mechanisms of the topical composition on various skin color types. Also provided is an artificial skin apparatus and kit for use with the in vitro method.

The invention discloses a multilayer film reflective high-precision metal round raster with metal base plate and at least four film layers of dielectric film, bright line, dielectric film and dark line, which comprises the following steps: (1) transmitting the raster metal material basic material into the metal mirror face through abating, kibbling and optical buffing; (2) depositing vacuum multilayer metal film on the metal mirror face; (3) coating the photoresist on the deposited metal film layer; (4) making the high-precision round raster through duplicating and corroding.

A process and apparatus for sensing gas concentration in a gas stream involves producing a succession of difference values representing differences between successive sample values of a succession of sample values representing instantaneous reflectance of light from a compound produced by reacting a reagent with the gas being sensed and producing a gas concentration value in response to a maximum difference value of the succession of difference values.

An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusing power. Also provided are an illuminator and a display which employ any of the film and laminates and are excellent in light-diffusing power and luminance and in profitability, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two incompatible thermoplastic resins. The film has a parallel-light transmittance of 20-85%, a haze of 10-80%, and a gloss of10-70%, and transmitted light has a ratio of the horizontal-direction diffusing power to the vertical-direction diffusing power of from 1.3 to 6.0. The anisotropic light-reflecting laminate comprisesa light-reflecting object and the anisotropic light-diffusing film laminated to at least one side of the object. In the laminate, reflected light has a diffusing-power ratio in a specific range, and the reflectance and the diffusing power satisfy respective specific ranges.

The invention aims at providing an infrared-ray absorption film having a low reflection factor and a high absorption ratio equivalent to those of gold black through an economical process such as ink jet printing involving the steps of printing a porous material solution and then conducting sintering without using a vacuum process. The invention provides an infrared-ray absorption film using a porous material which suitably has a pore size within the range of hundreds of nm to several μm and is formed of a metal oxide of carbon or silica, an organic/inorganic hybrid material or a meso-porous material having the composition described above. The infrared-ray absorption film is produced by applying the porous material precursor solution onto a substrate and then conducting sintering.

The invention discloses a crystal material. The chemical formula is Mg11(HPO3)8(OH)6, the reflectivity in an ultraviolet-visible-near infrared band of 0.2-2.5 microns is 88% or above, and simultaneously the emissivity in a far infrared band of 2.5-25 microns is 0.90 or above. The invention also discloses a preparation method of the crystal material. The preparation method comprises the following steps: on the basis of raw materials of magnesium acetate tetrahydrate and phosphorous acid, simultaneously adding a cyclohexylamine template agent, and preparing the Mg11(HPO3)8(OH)6 crystal powder bya hydrothermal synthesis method. According to the crystal material provided by the invention, comprehensive performance of reflection and radiation can be well combined, the actual cooling effect is2-10 DEG C better than the common heat reflecting material titanium dioxide in the market, and the crystal material can be well applied to the field of heat reflection infrared radiation.

A composite and a coating having engineered reflective properties are described. The composite comprises a matrix and flakes of a multilayer polymer film including one or more bilayers including at least a layer of a first polymer and a layer of a second polymer having a different refractive index than the first polymer. The coating described includes the composite as applied to a surface and has a reflectance of at least 10% for a selected wavelength range and a transmittance of at least 50% at wavelengths outside of the selected wavelength range. Also described are methods for forming the composite and the coating.

The invention provides a guided mode resonance filter. The guided mode resonance filter comprises homogeneous dielectric rods uniformly distributed in a single layer. The dielectric constant of each homogeneous dielectric rod is arranged to be n; and dielectric constant of media around the dielectric rods is arranged to be n<o>, wherein n>n<o>. The section radius of the dielectric rod is r. Separation distance between two dielectric rods is d. The uniformly distributed homogeneous dielectric rods are regarded as an equivalent waveguide. The operating wavelength of the guided mode resonance filter is decided by the guided mode resonance effect. The guided mode resonance filter has the advantages that the structure is simple and the design is flexible. The guided mode resonance filter has excellent performance parameters. The reflectivity rate of resonant wavelength is 100%, the bandwidth less than 3nm, the sideband reflectivity rate is less than 0.5%, and the resonant wavelength is tunable.

The laser-beam-mode controller comprises: a laser, a flat lens on output beam direction of laser whose convex surface is opposite to laser output side, an antireflection film on the convex surface of lens matched with work wavelength, and a semi-permeable film on lens center, wherein the distance between the lens flat surface and laser output end is the focal length. This invention improves system stability and beam quality with simple structure.

The invention relates to a plasma chamber arc suppression method and device and a radio frequency power supply system. The method comprises the following steps: carrying out arc detection on a plasma chamber; the arc detection comprises reflectivity detection, slope detection and pressure detection; determining whether electric arc is generated in the plasma chamber according to any one of reflectivity detection, slope detection and pressure detection; if the electric arc is generated, performing variable inductance adjustment on an access inductor of a main loop connected in series in the plasma chamber according to the severity of the generation of the electric arc, and suppressing the electric arc in the plasma chamber; according to the variable inductance adjustment mode, the inductance values of the connected inductors are correspondingly adjusted from small to large according to the sequence from light to heavy of the severity degree of electric arc generation. High-reliability detection on whether electric arc is generated in the plasma chamber is realized by adopting a mode of combining multiple detection means, and electric arc suppression is carried out by adopting an inductance changing mode, so that the aim of greatly improving the suppression reliability of the electric arc in the chamber is fulfilled.

The invention provides a convex double-layer pressure sensitive film based on an MEMS process. The film comprises a soft film and a medium hard film plated below the soft film, the diameter of the soft film is greater than that of the medium hard film; the soft film is a rubber film or a silica gel film made of PDMS, the medium hard film comprises a plurality of first medium layers and a pluralityof second medium layers, the refractive index of the first medium layers is larger than that of the second medium layers, and the first medium layers and the second medium layers are sequentially andalternately stacked from bottom to top. The invention further provides an FP cavity optical fiber acoustic sensor, when the FP cavity optical fiber acoustic sensor is used for collecting transmissionlight for demodulation, due to the fact that the reflectivity of the two cavity faces of the FP cavity is close to 99% through a thin film process, the transmission spectrum is a sharp comb-shaped spectral line, at the moment, the transmission light is received, and an acoustic pressure signal is obtained by demodulating an optical signal. The sensitive film manufactured by the method is large inperipheral deformation quantity, almost has no deformation in the diameter range of an optical fiber mode field, and is high in reflectivity.

The invention provides a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate and a thin film transistor layer, wherein the thin film transistor layer is located on the substrate and comprises an active layer, a metal layer and an anti-reflection layer; the anti-reflection layer is at least located on the side, close to the active layer, of the metal layer; and the reflectivity of the anti-reflection layer is smaller than that of the metal layer. According to the display panel, light irradiated to the active layer can be reduced, the risk of failure caused by performance change of the thin film transistor layer is reduced, and the working stability and reliability of the thin film transistor layer are improved.

The invention relates to an optical film and a camera module. The optical film comprises a base material, a filter film and an anti-reflection film. The base material comprises a first surface and a second surface located on the opposite side of the first surface. The filter film is arranged on the first surface. The anti-reflection film is arranged on the second surface and comprises an anti-reflection film body and a thickening film layer stacked on the anti-reflection film body, the anti-reflection film body is used for improving the passing rate of preset light, and the thickening film layer is used for improving the thickness of the anti-reflection film so as to reduce warping of the optical film. The thickness of the anti-reflection film is increased by arranging the thickening film layer, so that the warping phenomenon of the optical film caused by the large thickness difference between the anti-reflection film and the filter film can be avoided. Meanwhile, the anti-reflection film can also improve the problem that the reflectivity of the side, provided with an image sensor, of the optical film is high and relieve the flash phenomenon, so that the camera module using the optical film can obtain a better imaging effect.

The present invention relates to a resin composition having excellent dispersity, settling stability, and agglomeration stability. In addition, the present invention relates to a solder resist structure, a dry film, and a printed wiring board, which are formed from the resin composition and exhibit high average reflectance and reflectance at a wavelength of 450 nm before and after a reflow process without requiring a reflective plate. The resin composition is characterized in that a photosensitive resin composition and a thermosetting resin composition contain (B) rutile titanium oxide, (C) a phosphor and (D) a colorant, and the (C) phosphor is coated with the (D) colorant.

The invention, which relates to the technical field of displaying, provides a reflective display device and a manufacturing method thereof. A microfluidic device is arranged at an opposite side of a light exit side of a display panel; and a droplet layer is arranged in the microfluidic device. The droplet layer includes a plurality of reflective droplets that are used for reflecting light enteringthe reflective droplets. With the microfluidic device, the reflective droplets have large curved surface areas. After the light entering from the display panel is irradiated on the surfaces of the reflective droplets, the reflective droplets can carry out complete diffuse reflection on the incident light. Since the diffuse reflection capability of the reflective droplet is stronger than the diffuse reflection capability of the current reflective display device, the reflectivity of the reflective display device is enhanced effectively and thus the imaging quality is improved.