602 results about "Light quality" patented technology

The invention discloses a light-weight ceramic brick, which is a light-weight ceramic brick fired at high temperature and has a honeycomb-like internal structure of closed pores. The invention also discloses a preparation method of the above-mentioned lightweight ceramic tiles, which is formed by dry pressing after wet ball milling, sieving, iron removal, spraying drying tower and powder spraying on the vitrified brick polishing waste produced in large quantities in the ceramic industry at present. Method forming, or kneading using wet extrusion molding, and then firing products in continuous or batch kilns. Manufacture a kind of lighter quality ceramic tiles, aiming at the insufficient use of waste materials in the past, more effectively utilize industrial waste residues in large quantities, and because of its light structure, it can be used in the decoration of high-rise building walls, It has good properties such as light weight, high strength, heat preservation, and sound absorption, and it can significantly reduce the weight of the wall structure. At the same time, it also has the characteristics of easy transportation, easy construction, and fast speed. It has great advantages in saving energy and reducing the weight of buildings. The outstanding advantage is that it is an environment-friendly building ceramic decoration material.

The invention discloses a light-quality plaster ceiling in the architectural decorative material domain, which comprises the following parts: 50-70% architectural plaster, 8-15% light filler, 0.5-1.5% modifier, 1-2% waterproofing agent and 5-10% polyvinyl alcohol solution, wherein the lightweight fill is one or two or three of light calcium carbonate or lightweight magnesium carbonate or white carbon black according to random rate; the modifier is composed of 100g water, 15-20g silicasol, 5-7g sodium fluoride, 4-6g aluminum potassium sulfate, 7-9g potassium bichromate and 0.5-1g tributyl phosphate; the waterproofing agent is organic silicon waterproofing agent of sodium silanol methyl or potassium silanol methyl; the glass fiber is low-alkaline or non-alkaline glass fiber.

The invention relates to a high heat-conducting copper-based composite material and a preparation method thereof, belonging to the technical field of electronic packaging materials. The copper-based composite material consists of 50-80 percent by volume of electroplated diamond particles and 20-50 percent by volume of copper. The electroplated diamond particles and a caking agent are mixed according to the volume ratio of 1:1-4:1 and are produced into a diamond prefabricated part by using an injection forming process of the prefabricated part; and a copper matrix is directly placed on the diamond prefabricated part or is melt and poured on the diamond prefabricated part to be produced into the high heat-conducting copper-based composite material by using a pressure infiltration process. The copper-based composite material has higher heat conductivity ratio than that of an aluminum-based composite material; by plating the surface of diamond, the interface bonding of the matrix copper and the diamond can be improved and the interface heat resistance can be reduced; in addition, the material has low density and small thermal expansion coefficient and meets the requirement for light quality of packaging materials.

The invention relates to a portable water quality sampler, which mainly comprises a water quality sampling probe, a telescopic pole, a sampling pipeline automatic winding and unwinding reel and a handheld terminal. The water quality sampling probe comprises a deep detection sensor and a sampling pump; the telescopic pole comprises a plurality of telescopic rods, a pulley block, a hook and a suspension seat; the sampling pipeline automatic winding and unwinding reel comprises a reeling disk, a winding motor, a counterweight, a cable, a sample conveying tube, a suspension balance frame and a reel bracket, and the handheld terminal comprises a LCD screen and keys. The whole system has the advantages of light quality, disassemble components and convenient carrying; the telescopic pole structure can be used to collect intermediate water samples in rivers, ditches and reservoir banks, the winding motor controls the reeling disk to adjust the putting-in depth of the probe for water quality sampling of different water depths, the deep detection sensor can be used for real-time detecting of the water depth of the probe so as to ensure the sampling pump can accurately acquire a surface layer, middle layer and bottom layer water sample, and the handheld terminal can be used for sampling horizon setting and sampling motor control.

The system includes lens unit, image-sensing device, focusing mechanism, focusing and sensing device, control unit and flash unit. The method includes steps: using the focusing and sensing device senses and measures step number of motor rotation in focusing mechanism in focusing procedure; sending the step number to the control unit; the control unit compares the step number measured with the conversion table, which is input to and stored on the control unit in advance, between step number of motor rotation and distance of object to be shot so as to determine distance between the object to be shot and camera; calculating guide number of flash lamp in order to control flash lamp to emit most suitable light quality, and let photo obtain correct exposure. The invention controls and adjusts flash output accurately to reach correct exposure under condition of low cost and low power consumption.

A user monitoring device system includes a user monitoring device with a microphone and sensors to determine air quality, sound level/quality, light quality and ambient temperature near the user. A movement detection device detects a user's movement information. The movement detection device and the monitoring system assist to determine user sleep information and sleep behavior information. The microphone records user movement sounds detected by the movement detection device. The movement detection device is configured to cause the microphone to stop recording user movement sounds when the movement sounds are not directed to a sleep related parameter. In response to determining user sleep information or sleep behavior information the system is used for treatment of sleep or psychiatric disorders.

The present invention provides a fiber enhanced polyurethane fine screen and a shaping method. The screen (1) consists of a side frame (2), a screen aperture area (3) and a stiffener (4). The ventilation hole rate is more than or equal to 32 percent. A screen aperture (10) is 1mm-5mm long and 0.1mm-0.5mm wide. A separation strip between holes is 0.1mm-0.5mm thick. Enhanced fibers (11) are laid on the bottom of a thick separation strip (7) to improve the tensile strength of the screen. The screen has the advantages of small thickness, light quality and high opening ratio. The forming of the screen adopts a vacuum auxiliary, multiple-gate and low-viscosity polyurethane system transmission molding method. The method successively injects the low-viscosity polyurethane system in an enclosed vacuum fine screen cavity for curing molding through the multiple ports according to the regulated sequence. The methods of needle valve pouring joints, multiple gates sequence pouring and cavity vacuum pumping are adopted. Multiple streams of material flows can be prevented from meeting to form cavitations. And the problem that an atmospheric pouring method can not form the polyurethane fine screen is solved.

This invention is that a kind of multi-functional green nanometer two of environmental protection is oxidized Titanium coating and method of preparing, this coating can not merely be solved now. There is coating that is able to bear staining difference, is able to bear waiting difference, not the skills, such as environmental protection, etc. Skill question, it is clean to give the coating at the same time, disinfect and disinfect, Purify new functions, such as air, etc., it is the green environmental protection of more than one kind of kinetic energy Coating. Coating this by titanium white powder, exceed detailed silicic acid aluminium, nanometer Oxidize the titanium and disperse the liquid two times, the calcium carbonate of light quality, the calcium carbonate of heavy quality, Silicon lime powder, lithopone, talc powder, dispersant is moist. It is the dispersant, thickener, disappear and steep and pharmaceutical, become membrane auxiliary, flow flat pharmaceuticla, water, the cream base material, etc. make up, it is simple to prepare the craft. The cost performance is high, have very good economic benefits and social result Benefit.

This invention belongs to a laser radar domain, which relates to a continuous wave frequency modulation cohere laser radar which is on the basis of optical fiber laser device. Optical fiber laser device is used as light source, of which launching wnd links optical fiber coupler. Optical fiber coupler divides energy of light into two parts. Moiety is used as characteristics light, which can be directly inputted in an input end of secondary optical fiber coupler, the other part is inputted in expanding bunch lens device; after expanding bunch lens compresses laser emission angle, direct surveyed area by 2-dimensional scanner; echo-signal is feed-through one end of transmission optical fiber through optical antenna by 2-dimensional scanner, the other end of transmission optical fiber contacts secondary optical fiber coupler by optical fiber amplifier. After echo-signal and characteristics light are combined and interfered to mix frequency by optical fiber coupler, enter monitor component element. Monitor component element can transform and magnify signal photoelectricity, output, post it in computer by collecting card, carry out data processing. This invention has features of small volume, light quality, high integrated degree, good stability, intelligentification and modular.

The invention provides a kind of wall surface decoration material, specially outside wall heat preservation system decoration material. The wall surface decoration material is composed by the below component (according to per cent by weight computation): Cementing agent: 10~50%, pigment: 30~70%, padding: 5~30%, helps the medicinal preparation: 0.1~5%. The wall surface decoration material has the applicable scope broad, use convenient, does not fade, permeability good, bears the period of five days to be good, environmental protection, light quality, low cost, decoration surface nature artistic characteristic. Specially keeps warm with the outer wall outside the system match performance to be good, may directly wipe uses, general thick 1~2mm; Also may directly wipe to the thermal insulation material (inflation polystyrene is flinty cystosepiment, crowds models type polystyrene heat preservation board) on, general thick 2~5mm, causes the heat preservation to construct and to decorate time completes, time-saving labor saving. The wall surface decoration material is self-possessed lightly, permeability good, bears the period of five days well, the heat preservation project safety factor is big.

The invention provides an LED lighting quality evaluation method based on objective and subjective experiment data and a system. The method comprises the steps that subjective experiment data acquired from a preset LED lighting evaluation angle for light emitting samples are input; the subjective score mean of each group of light emitting sample is counted; for each group of light emitting sample, a spectroradiometer is used to measure spectral power distribution; data in a visible wavelength range are intercepted; objective evaluation indicators are calculated; a multiple nonlinear fitting method is used to construct an association model between the subjective score mean and a corresponding objective evaluation indicator under different light emitting sample conditions; for a light emitting sample to be evaluated, the spectroradiometer is used to measure the spectral power distribution; the data in the visible wavelength range are intercepted; the objective evaluation indicator is calculated; a corresponding score estimation value is acquired based on the association model; and the lighting quality of a light source is characterized. The LED lighting quality evaluation method provided by the invention has the advantages of flexible and targeted use, accurate evaluation and easy implementation.

An LED lighting device or LED lamp comprising one or more LED packages; and a switch control unit is provided. The switch control unit is configured to operate the one or more LED packages. The switch control unit is in communication with a sensor located in a space, the LED lighting device or LED lamp also being located in the space. The switch control unit is configured to (i) receive a sensor signal from the sensor, (ii) process the sensor signal, (iii) determine an adjustment to the operating light qualities of the LED lighting device or LED lamp based on the processing of the sensor signal and one or more goal light qualities corresponding to the space, and (iv) adjust the operation of the one or more LED packages in accordance with the adjustment.

A light control member formed by a prism sheet 5 is arranged along an emitting surface 12 of a light guide plate of a side light type surface light source device for liquid-crystal display backlighting arrangement and the like. The prism sheet 5 is provided with numerous projections formed with a height H1 at a pitch D1. Roughness is imparted to the emitting surface 12 by matt-processing or adhesion of fine particles. The roughness is preferably within the arithmetic average roughness Ra range 0.02-0.25 mum. Non-uniformity may be applied to height H1 of the prism sheet 5. The tendency of the prism sheet to adhere to the emitting surface is reduced and degradation of light quality prevented by the roughness of the emitting surface and/or non-uniform height of projections on the prism sheet.

The invention relates to an LED light source of one kind of solar spectrum and a manufacturing method thereof. The fluorescent powder of a light conversion layer only has three components, flour blending is easy to perform during a production process, a flour blending error rate is reduced, a light source color coordinate file falling rate is higher than that of a technical scheme adopting more phosphors, and the file falling rate of an integral product color coordinate is easy to control during a light source production process. A spectrum realized in the invention is similar to a sunlight spectrum, and compared with the quasi-solar spectrum in the prior art, the energy of a purple light portion is increased. In the invention, a purple light chip is adopted, the energy after 430nm is high, and the spectrum is closer to the real solar spectrum. The light quality of an ordinary LED light source is poor due to the lack of dark red portion energy. The dark red phosphor with a 650 nm emission peak is adopted to complement the energy of the dark red portion so as to achieve better light quality. A latest IES Rf-Rg calculator (IES TM30-15) standard is used to assess, and Rf is greater than 95 and Rg is greater than 99. A realized spectral color temperature coverage range is wide and is from 2200K to 10000K.

The invention belongs to the technical field of semiconductor illumination, and particularly discloses a white light LED illuminating system with the high light color quality and a designing method thereof. As the distance Duv from color coordinate points in CIE 1931 color gamut space to a blackbody line is optimized, the LED color mixture illuminating system having the high white light preference degree at the required color temperature is obtained, the color quality of a white light source can be improved, and the lamplight environmental effect can be improved; meanwhile, the required CRI and the high GAI can be guaranteed. The color temperature adjustment range of the white light LED illuminating system is 2,000 K to 10,000K, and the distance Duv from the color coordinate points to the blackbody line is larger than or equal to -0.1 and smaller than or equal to 0. By means of the Duv-optimizing color mixture designing method, the LED illuminating system with the high white light preference degree is obtained, and the white light LED illuminating system and the designing method can be applied to illuminating places with the high light quality requirements.

The invention discloses a method for detecting water pollutant biotoxicity by paper-based micro-fluidic chip anode current. The method is characterized in that a paper-based micro-fluidic chip is prepared and then water pollutant biotoxicity is determined by the paper-based micro-fluidic chip. According to a microbial respiratory chain-based BQ system electrochemical detection principle, on the paper-based micro-fluidic chip of a screen printing PDMS hydrophilic microchannel and carbon paste three-electrode system, a steam trap of the hydrophilic microchannel is dredged by a small piece of a cellulose membrane so that liquid flow release time and flowing time are controlled and separation and cleaning of a nutrient solution and cells and cell incubation by pollutants are realized and thus the interference produced by current signal detection device anode current-based quantitative determination of pollutant toxicity is reduced. The method has the advantages of light quality, carrying convenience, low cost, one-step analysis, small sample volume and fast analysis speed and is suitable for biotoxicity detection in occasions of a remote area, field on-site water pollution, soil pollution, food safety and space carrying.

A packaging structure and method of light-emitting diode mainly comprises a monochromatic LED chip, a lead wire, a substrate, a condensing lens, a phosphor, a reflecting bowl and a radiating substrate. The invention is characterized in that the chip is formed by the sintering process after adding the phosphor into the raw material and uniform mixing them, the substrate containing the phosphor is fixed at the top surface of the reflecting bowl around the chip, and the LED chip is fixed in the chip area of the radiating substrate by metal welding, anodic bonding or resin bonding. The invention has the advantages that the invention can accurately control the dose of phosphor, promote the light quality and luminescence uniformity of white LED after packaging, meanwhile avoid the adverse effect on the phosphor from high temperature during use, and promote the reliability of LED after packaging.

The invention discloses a porous mullite ceramic material and preparing method, which comprises the following steps: dispensing 10-50 percent coal gangue powder, 50-90 percent Al (OH) 3, 2-10 percent water and 0-10 percent addictive; stirring; moulding; drying the mould at 110 deg.c for 4-24 h; sintering at 1400-1600 deg.c for 1-8 h. The chemical component of product is SiO2 and Al2O3, wherein the main crystal phase is mullite or mullite-alumina, which can be high-strength and light-quality insulating flame-proof material.

The invention provides an LED plant growth lamp which comprises a lamp panel, an LED lamp and a control device. The LED lamp is mounted on the lamp panel and is electrically connected with the control device; a power source, a control circuit, a keyboard and a display device are arranged in the control device, and the control circuit comprises a switch, a single chip microcomputer, a real-time clock circuit, a detection circuit, an optical isolation dimmer, a regulating circuit and a communication circuit; and the power source, the keyboard, the display device, the real-time clock circuit, the detection circuit, the optical isolation dimmer, the regulating circuit and the communication circuit are electrically connected to the single chip microcomputer. The LED plant growth lamp has the advantages that the single chip microcomputer measurement and control technology is adopted, so that the light intensity, the light quality and the light cycle of an LED light source are adjustable, and requirements of growth periods of different plants are met; and illumination, temperature and humidity detection, control and regulating links are set for the LED plant growth lamp, devices such as an air-conditioner, a fan and a humidifier can be automatically started/stopped to provide suitable environments for growth of the plants, and accordingly the LED plant growth lamp is high in intelligence level and has a good practical function.