57 results about "Hot mirror" patented technology

An RGB-Z sensor is implementable on a single IC chip. A beam splitter such as a hot mirror receives and separates incoming first and second spectral band optical energy from a target object into preferably RGB image components and preferably NIR Z components. The RGB image and Z components are detected by respective RGB and NIR pixel detector array regions, which output respective image data and Z data. The pixel size and array resolutions of these regions need not be equal, and both array regions may be formed on a common IC chip. A display using the image data can be augmented with Z data to help recognize a target object. The resultant structure combines optical efficiency of beam splitting with the simplicity of a single IC chip implementation. A method of using the single chip red, green, blue, distance (RGB-Z) sensor is also disclosed.

An optical apparatus records light reflected from one or more of a user's facial features. While the image is captured, visible light from a display or other scene to be viewed by the user passes to the user's eye. A portable iris pattern capture device is used. Near-infrared light is directed towards the user's eye from where it is reflected back into the apparatus. Visible light from an LCD display mounted at the rear of the apparatus travels out to the user's eye from the apparatus. A hot mirror inside the apparatus directs the near-infrared light reflected from the user's eye to a camera unit, and does not significantly attenuate the visible light emanating from the display.

Examples of an imaging system for use with a head mounted display (HMD) are disclosed. The imaging system can include a forward-facing imaging camera and a surface of a display of the HMD can include an off-axis diffractive optical element (DOE) or hot mirror configured to reflect light to the imaging camera. The DOE or hot mirror can be segmented. The imaging system can be used for eye tracking, biometric identification, multiscopic reconstruction of the three-dimensional shape of the eye, etc.

The invention relates to an infra-red reflecting layered structure comprising a transparent substrate layer; a first metal oxide layer; a first silver containing layer, a second metal oxide layer; a second silver containing layer and a third metal oxide layer. The first, second and third metal oxide layer have a refractive index of at least 2.40 at a wavelength of 500 nm. The layered structure according to the present invention laminated on glass has a visual light transmittance (VLT) higher than 70% and a solar heat gain coefficient (SHGC) lower than 0.44. The invention further relates to the use of a layered structure as a transparent heat-mirror.

A photocell device having enhanced conversion efficiency. The device is adapted to convert light energy to electrical energy in a semiconductor layer, to convert a first, monochromatic light, to a second light of different wavelength, in a fluorescent layer, to transmit the first light through a hot mirror layer, to reflect light from the hot mirror layer, and to reflect light from a mirror layer disposed at a second surface of the device.

The invention discloses a double-component silicone structural sealant for heat mirror hollow glass and a preparation method of the sealant. The sealant comprises a component A and a component B, wherein the component A comprises hydroxyl-terminated polydimethylsiloxane, alkyl-terminated polydimethylsiloxane, hollow microsphere, ceramic microbead, metal hydroxide, metal oxide, activated calcium carbonate, inorganic pigment and a surfactant; the component B comprises alkyl-terminated polydimethylsiloxane, a coupling agent, a cross-linking agent, a catalyst, an inhibitor, a thickening agent, and silicon dioxide. The preparation method of the sealant comprises the following steps: 1) taking each ingredient in the component A to be mixed uniformly under the vacuum condition; 2) taking each ingredient in the component B to be mixed uniformly under the vacuum condition; 3) mixing the component A and the component B at room temperature according to the weight ratio of (8:1) to (20:1), and at last obtaining the sealant. The double-component silicone structural sealant is good in adhesiveness, high in curing speed, good in sealing performance, high in hardness and modulus, and excellent in thermal barrier effect, and suitable for sealing and bonding of heat mirror film, glass and metal materials etc.

Disclosed is a capture and identification system for blending images of palm veins and palm prints. The capture and identification system comprises a computer, an instrument case, and a heat mirror, a near-infrared light source, a visible light source, an infrared CCD (charge coupled device) camera, a visible light CCD camera, a communication interface, an image capture card and a rectangular supporting body which are mounted in the instrument case. Near-infrared light emitted from the near-infrared light source and visible light emitted from the visible light source irradiates to the palm of a tasted person respectively. Distributing information of subcutaneous veins is included in a reflected infrared light which penetrates through the heat mirror to form the image in an imaging sensor of the infrared CCD camera with an infrared filter, and the image of the palm veins is acquired. The image of the palm prints is captured by the visible light CCD camera with the infrared filter, the two images are converted into a digital image signal through the image capture card to be transmitted to the computer, and identification is performed by extracting characteristics after the images are registered and blended.

An automated luminaire which allows for the selection of a diffuser or a hot mirror which is mounted to engage the light beam at an angle non perpendicular to the central axis of the light beam and nonparallel or not in the same plane as the diffuser. The selector is articulated in a manner to automatically engage a selector based on what other light modulators are selected to engage the light beam and to automatically oscillate or scan when there is a likelihood of damage to the hot mirror or diffuser based on how long it is engaged and/or light intensity and/or other modulators selected and or temperature sensor data in the luminaire.

The invention discloses an optical coherence tomographic imaging system, which comprises an OCT (optical coherence tomography) infrared source reference arm, an acquisition portion and a detection arm. The detection arm is provided with optical fibers, a collimator, an optical path galvanometer scanning system, a lens and a heat mirror along an optical path from the OCT infrared source reference arm to human eyes, infrared emitted from the lens is reflected by the heat mirror to human eyes, a slit lamp system is arranged on an optical path opposite to the optical path from the heat mirror to the human eyes, and white light from the slit lamp system passes through the heat mirror to be emitted into the human eyes. The optical coherence tomographic imaging system combines slip lamps with OCT, the OCT system is independent relatively, and mutual imaging is unaffected and mutually supplementary. OCT imaging and slip lamp imaging share a common focus, so that fundus surface or anterior segment surface information and deep structural information can be obtained simultaneously without more adjustment. The optical coherence tomographic imaging system is more reasonable in structure and more stable in imaging.

The invention discloses a transparent heat mirror of a solar photothermal conversion heat collector and a manufacturing method of the transparent heat mirror. The transparent heat mirror comprises a GLASS/D1/ITO/D2 or Porous-SiO2/GLASS/D1/ITO/D2/Porous-SiO2 or GLASS/ITO/D2/D1 film system structure. An ITO film is not only an infrared heat reflection function layer, and is matched with a high-low-refractivity antireflection film system from the perspective of optical design, so that spectral selectivity of the transparent heat mirror is higher than that of a single-layer transparent heat mirror, and solar spectrum (300-2500nm) transmissivity of the transparent heat mirror is improved by 10% when compared with that of a single-layer TCO-film transparent heat mirror with identical radiance and manufactured under the conditions of a same transparent substrate and same processes.

The invention discloses a transparent heat-insulation energy-saving nano paint and a preparation method thereof, belonging to the field of functional paints. The paint is composed of a metal oxide inorganic nano water-based dispersion with optical thermal properties, a defoaming agent, a leveling agent and a diluter. The coated film formed by the paint has high reflecting power (higher than 80%) for thermal infrared rays with the wave range of 2.5-40 mu m; and therefore, the glass coated with the paint can act as a hot mirror to prevent outdoor heat radiation from entering the room so as to save the air conditioning cost in summer, and reflect most indoor heat radiation back to rooms in winter so as to ensure no indoor heat dissipation to the outside, thereby saving the heating cost.

The invention discloses a method for preparing a SnO2-doped ZnO sputtering target material. The method includes the steps that SnO2 and ZnO powder with the grain size being 1-5 um and the purity being larger than or equal to 99.95% is selected as raw materials, the raw materials are evenly mixed in proportion through mixing equipment, and the SnO2 powder accounts for 20%-50% mass weight of mixed powder; a graphite mold is assembled, the surface of an inner cavity of the graphite mold is coated with a high temperature resistant ZrO2 protective coating with the thickness being 0.5mm; the mixed powder is placed into the assembled graphite mold, and tamping is performed with a special tool; the tamped graphite mold with the powder is placed into a nitrogen atmosphere shielded furnace to be heated and pressurized, namely hot pressing is performed; and the heating temperature inside the furnace is 1000-1300 DEG C, pressure is 5-30MPa, and heating and pressurizing time is 2-6 hours. By means of doping, the overall performance of a ZnO thin film is improved, and ZnO-based transparent conducting thin films can be widely applied on the aspects of solar cells, flat-panel displays, electromagnetic shielding, hot mirrors, ultraviolet detectors and the like.

The invention relates to a production process of two-glass three-cavity hot mirror film hollow glass. The production process of the two-glass three-cavity hot mirror film hollow glass has the beneficial effects that two layers of hot mirror films are arranged between two pieces of glass; the weight of the obtained hollow glass with three air layers is far smaller than that of the common four-glass three-cavity glass, so the energy saving problem can be solved to a greater extent and the wastage of the material (sheet glass) is also reduced to a great extent; the three air layers have the effect of improving the properties of the hollow glass to a greater extent; by designing customized auxiliary tools, namely positioning blocks and fixing rods, spacing bars are positioned accurately, are convenient to construct and are also not easy to misplace or incline; by forming balancing holes in the hot mirror films, the air pressures of hollow cavities at the two sides are consistent, thus eliminating the phenomena of unevenness in spreading, edge wrinkle, etc.

The invention discloses a method for acquiring RGB and infrared images by using a conventional digital camera. The method comprises: step one, calculating an independent G channel value and an independent NIR channel value by using data at a G position after hot mirror removing in a Bayer array mode; step two, calculating G channel value and NIR channel values of all pixel positions by using an interpolation method; and step three, calculating an R channel value and a B channel value of each pixel position. Therefore, R, G, B, and NIR channel values of all pixel positions are obtained finallyand thus a complete RGB image and NIR image. The method is simple and the image effect is good.

The invention provides a system and method for correcting on-orbit error of a heat mirror dorsal valve of a satellite-borne microwave imager. The method comprises the following steps: S1, a heat mirror relevant parameter module provides parameters for a heat mirror dorsal valve orientation position acquisition module, an earth radiation quantity acquisition module and a heat mirror dorsal valve error acquisition module; S2, the heat mirror dorsal valve orientation position acquisition module acquires the orientation position of the heat mirror dorsal valve according to the parameter, and transmits the position to the earth radiation quantity acquisition module ; S3e , the earth radiation quantity acquisition module acquires the earth radiation quantity corresponding to the orientation position of the heat mirror dorsal valve according to the parameter and the position, and sends the earth radiation quantity to the heat mirror dorsal valve error acquisition module; and S4, the heat mirror dorsal valve error acquisition module acquires the heat mirror dorsal valve error according to the parameter and the earth radiation quantity. By adoption of the method provided by the invention, the on-orbit error of the heat mirror dorsal valve of the satellite-borne microwave imager can be acquired effectively and precisely; and moreover, the method is scientific and reasonable, and is easyto realize.

An instrument measuring optical properties of an eye in an entire field of vision, including refraction and aberrations, including: a frame mounted on an ophthalmologic table that can be oriented in three perpendicular directions X, Y, Z; a support surface for a head of the subject; a hot mirror; a long mirror; an illumination sub-assembly including a fiber optic head; a lens; a diaphragm; a beam splitter; and a measurement sub-assembly with two lens and two mirrors; a camera including a matrix of micro-lenses on the inlet of camera, the camera being placed on the focal plane of the micro-lenses; the frame including a motor, a shaft of which rotates in the Y direction, to which an arm is attached that can rotate on the shaft; components of the illumination sub-assembly, components of a measurement sub-assembly, and the camera with the matrix of micro-lenses being mounted on the arm.