75 results about "Solar transmittance" patented technology

The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of aromatic polycarbonate resin having a concentration of end hydroxyl group of 100 to 1800 ppm and 0.0001 to 5 parts by weight of fine particle of boride of at least one metal selected from the group consisting of La, Ce, Pr, Nd, Tb, Dy, Ho, Y, Sm, Eu, Re, Tm, Yb, Lu, Sr and Ca, and a heat ray shielding molded product formed by molding the above polycarbonate resin composition. The polycarbonate resin composition and heat ray shielding molded product composed thereof according to the present invention, have especially low haze, are excellent in transparency, have low solar transmittance and sufficient heat ray shielding property (especially, have a function of transparency for visible light and selectively shielding property for infrared ray), and are excellent in mechanical strength and thermal stability at melting. Therefore, these are suitably applicable for windows of general buildings or vehicles, roof materials of arcades and carports, optical materials such as infrared ray cut filters, films for agriculture or the like.

Laminated and etched glazing unit for architectural integration of solar energy systems comprising a substrate delimited by two main faces and a multi-layered interference filter also delimited by two main faces, one main face of said substrate being adapted to be in contact with an incident medium, the other main face being in contact with a main face of said interference filter, the other main face of said interference filter being adapted to be in contact with an exit medium; said incident medium having a refractive index n_inc=1, said substrate having a refractive index n_substrate defined as follows: 1.45≦n_substrate≦1.6 at 550 nm, and said exit medium being defined as follows 1.45≦n_exit≦1.6 at 550 nm; and wherein said unit is designed in such a way that the following requirements are met: 1a) The saturation of the colour, given by C*_ab=√(a*)²+(b*)², according to the CIE colour coordinates L*, a* and b* under daylight illumination CIE-D65 is higher than 8 at near-normal angle of reflection, except for grey and brown. 1b) The visible reflectance at near-normal angle of reflection R_vis is higher than 4%. 1c) The variation of the dominant wavelength λ_MD of the dominant colour MD of the reflection with varying angle of reflection Θ_r is smaller than 15 nm for Θ_r<60°. 1d) The total hemispherical solar transmittance at near-normal incidence is above 80%.

The invention relates to a bendable low-emission coated glass. A film structure of the bendable low-emission coated glass is as follows from glass substrate to outside: a glass substrate, a first dielectric layer, a low-emission layer, a second dielectric layer, and a protection layer. Compared with the prior art, the bendable low-emission coated glass of the invention utilizing chemical compatibility has excellent physical performance, flexible configuration, convenient control, higher deposition efficiency, and good bend resistance. Key performance indicators of the glass after being bent do not change. The glass has low emission. Visible light transmittance of laminated glass composed of the bendable low-emission coated glass is above 76%, and solar transmittance thereof is less than 48%; or the visible light transmittance is above 70% and the solar transmittance is less than 43%. The glass is suitable for the windshield glass of an automobile.

Disclosed is a glass with low solar transmittance, which is characterized by that it has a basic composition of soda-lime-silica glass, that it contains as coloring components 0.70-1.70 mass % of Fe₂O₃ (total iron in terms of ferric iron), 0.15-0.45 mass % of FeO (ferrous iron), 0-0.8 mass % of TiO₂, 100-350 ppm of CoO, 0-60 ppm of Se, 100-700 ppm of Cr₂O₃, and 3-150 ppm of MnO, that it has a ratio (Fe²⁺/Fe³⁺) of ferrous iron to ferric iron of 0.20-0.80. This glass has superior ultraviolet absorbing performance and infrared absorbing performance (heat insulation performance) and an appropriate transparency.

The present invention relates to a dark neutral green gray soda-lime glass composition comprising, as a colorant ingredient per 100 weight parts of a base glass composition, 1.4 to 2.5 weight parts of total Fe₂O₃, 0.02 to 0.04 weight parts of CoO, 0.0001 to 0.004 weight parts of Se, 0.005 to 0.5 weight parts of MnO₂, and 0.05 to 1 weight parts of CeO₂. The glass composition of the present invention has a visible light transmittance (LT_A) of 15% or less, an ultraviolet ray transmittance (T_uv) of 0 to 1%, and a solar transmittance (T_sol) of 15% or less, measured for a reference thickness of 4 mm. As described above, the glass composition of the present invention is excellent in absorbing ultraviolet rays and solar heat, and therefore can be valuably used in privacy glass or a sunroof of a motor vehicle, or in glass used for construction.

The invention discloses a method for preparing photovoltaic coated glass with high light transmittance. The roller coating method is adopted, and the steps are as follows: 1. edge grinding of the original sheet; 2. cleaning; Silicon oxide coating or coat a layer of high refractive index coating on the smooth surface first, then coat a layer of low refractive index porous silica coating or coat a layer of low refractive index porous silica coating on the embossed surface; 4. Curing ; 5. Flip; 6. Coating, coating a layer of low refractive index porous silicon oxide coating on the smooth or embossed surface; 7. Curing; 8. Flip; 9. Tempering; 10. Cleaning. The invention adopts roller coating method to coat anti-reflection layer on the smooth surface and embossed surface of ultra-white solar glass, and one or two layers of anti-reflection layer can be arranged on the smooth surface to produce high light transmittance photovoltaic coated glass The light transmittance reaches over 96.0%. Using high light transmittance photovoltaic coated glass as the cover glass can reduce light loss and increase the power of photovoltaic modules.

A laminated glass includes a pair of glass plates; and an interlayer located between the glass plates. At least one of the glass plates has a cross section with a wedged shape, and an entire amount of iron in terms of Fe₂O₃ in the glass plate having the cross section with the wedged shape is 0.75 mass % or less. The interlayer includes a heat shielding agent, and has a cross section with a wedge angle of 0.2 mrad or less. A total solar transmittance, defined by ISO 13837A, of the laminated glass is 60% or less.

To provide a heat-absorbing glass plate which satisfies both low solar transmittance and high visible light transmittance, presents a green color as transmitted light and contains a small number of coloring components. The heat-absorbing glass plate of the present invention has a solar transmittance of at most 42% calculated as 4 mm thickness, has a visible light transmittance (by illuminant A, 2° visual field) of at least 70% calculated as 4 mm thickness, and provides a transmitted light having a dominant wavelength of from 492 to 520 nm, and it is made of soda lime silica glass having substantially the following composition, as represented by mass % based on oxides. SiO₂: 65 to 75%, Al₂O₃: more than 3% and at most 6%, MgO: at least 0% and less than 2%, CaO: 7 to 10%, total iron as calculated as Fe₂O₃: 0.45 to 0.65%, and TiO₂: 0.2 to 0.8%, and contains substantially no member selected from the group consisting of CoO, Cr₂O₃, V₂O₅ and MnO, wherein the proportion of the mass of divalent FeO in the mass of total iron which is the amount of total iron as calculated as Fe₂O₃, is more than 42% and at most 60%.

The invention discloses a solar glass AR (Anti-Reflection) film coating roll coater comprising a base, a conveying roller group and a conveying belt, wherein the conveying roller group and the conveying belt are mounted on the base; the conveying roller group and the conveying belt are driven to work by a conveying motor; a coating mechanism and a lifting mechanism capable of automatically lifting the coating mechanism are arranged above the conveying belt; the coating mechanism comprises a glue coating roller motor, a glue coating roller, a metering roller motor, a metering roller, an auxiliary roller, a first conveying compression roller and a second conveying compression roller; and the glue coating roller, the metering roller, the auxiliary roller, the first conveying compression roller and the second conveying compression roller are respectively mounted on coating brackets at the both sides above the conveying belt. The solar glass AR film coating roll coater provided by the utility model can be used for uniformly coating; the industrialization is realized by effectively combining a nanometer technology of a client; the light transmittance of glass can be increased by the produced product; the self-cleaning function can be achieved; the conversion efficiency of a photovoltaic cell can be effectively improved; and the solar reflectivity of the glass surface is reduced, so that the solar transmittance is improved.

The invention relates to a manufacture method of a glass plate silica gel solar light concentrating lens and a solar light concentrating device. Vulcanization or solidification material such as silica gel and ultraviolet solidification resin are directly manufactured on glass plate through a mould, or a semi-finished lens which is made of silica gel or the resin is connected on the glass plate, or silica gel or resin is firstly manufactured on the glass plate and then a refractive face of the light concentrating lens is processed and made to manufacture a light concentrating lens which comprises a Fresnel lens and a dioptric lens. The less sheet of the dioptric lens has two flat refractive faces which are not parallel with each other. The light concentrating device is composed of a solar light concentrating lens which is manufactured with the method in the invention, a solar light tracing mechanism and a shell body. The invention has the beneficial effects of high lens precision, higher solar transmissivity, jarring tolerance, light weight and low manufacture cost. The silica gel product is tolerant of ultraviolet rays. Two actualizing examples are given out in the form attached drawing.

The invention provides low solar transmittance coatings that have particularly low solar transmittance. The coating includes three infrared-reflection film regions, which may each comprise silver. In some cases, the coating is incorporated into a laminated glass assembly.

To provide a heat-absorbing glass plate which comprises soda lime silica glass containing coloring components, the coloring components containing, as represented by mass % based on the following oxides, from 0.45 to 0.61% of total iron as calculated as Fe₂O₃ and from 0.2 to 0.6% of TiO₂, which contains substantially no CoO, Cr₂O₃, V₂O₅, MnO nor CeO₂, which has a mass proportion of bivalent iron as calculated as Fe₂O₃ in total iron as calculated as Fe₂O₃ of from 45 to 60%, which has a solar transmittance of at most 42% calculated as 4 mm thickness, which has a visible light transmittance (by illuminant A) of at least 70% calculated as 4 mm thickness, and which provides a transmitted light having a dominant wavelength of from 492 to 500 nm.

The invention discloses a method for obtaining a laser atmospheric transmittance by utilizing a solar radiometer. The method comprises the following steps: measuring the total solar radiation transmittance Tsun of a specified wave band and the content PW of atmospheric vertical water vapor columns by utilizing the solar radiometer, performing analog computation on a spectral response function f (Lambda) by combining a radiance transfer equation and MODTRAN 5.0 software, thus finally obtaining the final calculation model of the total laser atmospheric transmittance Tlaser. The method fully considers the difference between a laser narrow spectral transmittance and a sunlight wide spectral transmittance, establishes the relationship of the laser atmospheric transmittance and the Tsun and the PW measured by the solar radiometer, minimizes the measuring error of the transmittance of laser during transmission in atmospheric air, and is suitable for the condition that atmospheric molecular absorption is mainly H2O absorption.

An infrared isolated heat-absorption float glass relates to the field of float glass. The glass is basically composed of SiO2, Na2O, K2O, CaO, MgO, Al2O3, total iron calculated according to Fe2O3, SnO2, ZnO, TiO2, total cerium calculated according to CeO2, and SO3, wherein the weight of the total iron calculated according to Fe2O3 is 0.5-1.0% and the preferable weight of the total iron is 0.6-0.8%; the weight of SnO2 satisfies the formula Fe2O3: SnO2=1: 1.6-3.0 with the preferable formula being Fe2O3: SnO2=1: 2.2-2.6; the weight of ZnO satisfies the formula SnO2: ZnO=1: 0.4-2.5 with the preferable formula being SnO2: ZnO=1: 1.2-2.2; and the weight of the total cerium calculated according to CeO2 satisfies the formula Fe2O3: CeO2=1: 0.005-2.7. The glass has excellent heat absorption property. When the glass thickness is 3-5mm, the transmittance at the wavelength of 1050nm is less than or equal to 15%, and the transmittance at the wavelength of 1300nm is less than or equal to 20%. In the meanwhile, the transmittance of visible light is greater than 50%, and the direct solar transmittance (Te) is less than 40%. Therefore, the glass provided by the invention can isolate the heat energy of sunlight, has an effect of energy saving, and can be widely applied in structural glass, automobile glass and the like.

Glasses are described which have characteristics that produce high visible transmittance, low solar transmittance, and high selectivity. The glasses can also preferably have a blue-green color. A number of advantageous formulations are described.

To provide a colored glass plate which, despite the content of expensive cerium controlled to be low, simultaneously satisfies low solar transmittance, high visible light transmittance and low UV transmittance, while transmitted light has a green color tone. The colored glass plate comprises, as represented by mass percentage based on oxides, SiO₂: from 65 to 75%, Al₂O₃: from 0 to 6%, MgO: from 0 to 6%, CaO: from 5 to 15%, total iron calculated as Fe₂O₃: from 0.3 to 1.2%, total titanium calculated as TiO₂: from 0.2 to 1.1%, total vanadium calculated as V₂O₅: from 0.02 to 0.3%, and total cerium calculated as CeO₂: from 0.01 to 0.5%, and contains substantially no cobalt, chromium or manganese.

To provide a colored glass plate which, despite containing substantially no expensive cerium, simultaneously satisfies low solar transmittance, high visible light transmittance and low UV transmittance, while transmitted light has a green color tone, The colored glass plate comprises, as represented by mass percentage based on oxides, SiO₂: from 65 to 75%, Al₂O₃: from 0 to 6%, MgO: at least 0% and less than 2%, CaO: from 5 to 15%, total iron calculated as Fe₂O₃: from 0.3 to 1.2%, total titanium calculated as TiO₂: from 0.2 to 1.1%, and total vanadium calculated as V₂O₅: from 0.02 to 0.3%, and contains substantially no cerium, cobalt, chromium or manganese.

The invention discloses a preparation method for a SiO2 anti-reflection film having a simulated bulge structure. The preparation method comprises the following steps of: taking mono-dispersed spherical SiO2 powder as a hard template, dispersing the SiO2 powder in an acidic SiO2 sol, and carrying out film coating on a glass substrate to obtain the SiO2 anti-reflection film having the simulated bulge structure. The performance of the SiO2 anti-reflection film is improved with the adoption of the particular simulated bulge structure, and on the basis of maintaining film strength, the solar transmittance is increased; and moreover, the capability of pollution prevention and self-cleaning can be improved by the simulated bulge structure. The method disclosed by the invention is simple and is moderate in condition, the physical and chemical stability of a product is high, the product performance of the SiO2 anti-reflection film is enhanced and improved, the conversion efficiency of a solar cell is further enhanced, and a certain promotion effect is played in the wide application of the solar cell.

A heat insulation material for agricultural and horticultural facility having a heat insulation layer formed of a resin base material containing particulate heat insulation fillers diffused therein. The heat insulation fillers are formed of a material selected from a group consisting of lanthanum hexaboride and antimony-added tin oxide. This heat insulation material for agricultural and horticultural facility has as the insulation index the solar transmittance of 10-80%, the visible light transmittance of 30-90%, and the light transmittance in the ultraviolet ray range of 5-80% at wavelength of 320 nm and 0-70% at wavelength of 290 nm.

The invention relates to a blue-green glass composition capable of strongly absorbing infrared rays. The glass composition comprises a main part of an ordinary silicate glass composition, and a colorant part which comprises 0.03 to 0.3 wt% of total iron (Fe2O3), 0.05 to 0.5 wt% of CuO, 1 to 3 wt% of NiO and 0 to 30 ppm of CoO. The glass with a thickness of 5 mm is prepared by melting under a reducing atmosphere, annealing, molding, polishing and grinding. The glass provided by the invention has a visible light transmittance more than 88%, a total infrared transmittance less than 18%, a total solar transmittance less than 40%, a dominant wavelength in a range of 496 to 507 nm, and a color purity less than 5%.

To provide a colored glass plate which, despite containing substantially no expensive cerium, simultaneously satisfies low solar transmittance, high visible light transmittance and low UV transmittance, while transmitted light has a green color tone. The colored glass plate comprises, as represented by mass percentage based on oxides, SiO₂: from 65 to 75%, Al₂O₃: from 0 to 6%, MgO: from 2 to 6%, CaO: from 5 to 15%, total iron calculated as Fe₂O₃: from 0.3 to 1.2%, total titanium calculated as TiO₂: from 0.2 to 1.1%, and total vanadium calculated as V₂O₅: from 0.02 to 0.3%, and contains substantially no cerium, cobalt, chromium or manganese.

The invention discloses a dynamically adjustable high-performance window and a control method thereof. The window includes a window frame. An inner layer window body and an outer layer window body areintegrated on one window frame. When the inner layer window body and the outer layer window body are fully opened or partially opened, when the inner layer window body and the outer layer window bodyare in a closed state, the inner layer window body and the outer layer window layer are sealed to form an air layer with a certain distance, and a movable sunshade curtain is arranged between the inner layer window body and the outer layer window body. The dynamically adjustable high-performance window adopts the structural design of an inner window body and an outer window body on the window frame, the movable sunshade curtain is arranged between the inner window body and the outer window body, the contradiction problem that an existing window has a large total solar transmittance during theday and a small heat transfer coefficient at night is effectively solved, moreover, while noise controllability is achieved, windows are installed conveniently, the cost is reduced, and an effectivesunshade effect can be achieved especially in summer.