126 results about "Light absorber" patented technology

A light absorber 10 has a transmission spectrum satisfying the following requirements (I), (II), (III), (IV), and (V) at an incident angle of 0°. The light absorber 10 has a haze less than 0.20%. (I) An average transmittance TA0deg(460-600) is 75% or more. (II) A shorter cut-off wavelength λH0deg(s) is in a range of 390 nm to 450 nm. (III) A longer cut-off wavelength λH0deg(L) is in a range of 600 nm to 680 nm. (IV) An average TA0deg(300-380) is 1.2% or less. (V) An average TA0deg(750-1000) is 1.2% or less.

The invention discloses a full-automatic machining device based on pipeline support manufacturing, and relates to the technical field of metal machining, the full-automatic machining device comprises a base, a plurality of supporting strips mounted at the top of the base and a laser cutting machine mounted at the top of the base, and further comprises a material guiding mechanism and a material conveying mechanism, the cover body is arranged at the top of the base, the vacuum fixing assembly is installed in the cover body, and the displacement assembly is used for driving the cover body to move. The composite treatment mechanism comprises two sliding blocks arranged in the cover body, cleaning rollers installed on the outer walls of the opposite sides of the two sliding blocks correspondingly, polishing rollers installed at the bottoms of the sliding blocks and a linkage assembly used for driving the two sliding blocks to move; after the strip-shaped support is cut through laser, the strip-shaped support is transferred away, the strip-shaped support is sequentially subjected to light absorbent cleaning, notch polishing and cooling treatment, and the problem that in the prior art, follow-up treatment operation on the strip-shaped support is complex is solved.

The invention relates to the technical field of energy-saving building materials, and discloses a multi-layer composite sunshade film with a self-cleaning function, which sequentially comprises a release film layer, a bonding layer, a base material layer I, a spectrum functional layer, a base material layer II and a self-cleaning layer from inside to outside, the raw material of the spectrum functional layer comprises at least one of an infrared absorbent, a visible light absorbent and an ultraviolet absorbent; the self-cleaning layer is a modified layer obtained by modifying the surface of the base material layer II through fluorosilane. According to the sunshade film, the energy-saving performance of a building can be greatly improved, so that the maintenance cost is reduced, and the sunshade film is suitable for being used outdoors for a long time and can also be attached to the outer surface of the building for use.

The present application relates to a light spot analysis system, which comprises a shell and an analysis assembly, the shell is provided with an opening, and the analysis assembly is arranged in the shell and used for light spot analysis, the analysis assembly comprises a collimating lens, a wedge prism used for decomposing laser into a reflected light beam and a transmitted light beam, a measuring camera used for measuring the reflected light beam, and a tail light absorber used for absorbing the transmitted light beam, the collimating lens is arranged at the opening, and the wedge prism is arranged between the collimating lens and the measuring camera, wherein one analysis assembly is provided with a focusing lens, and the focusing lens is arranged between the wedge prism and the measuring camera. The present application can be applied to high-power laser measurement analysis of different wavelengths, and cost reduction is realized at the same time.

The invention relates to the technical field of high polymer materials and discloses 3D printing light-cured resin as well as a preparation method and a printing process thereof. The 3D printing light-cured resin is prepared from the following raw material components: acrylic resin, a photoinitiator, a light absorber, color paste and an auxiliary agent, wherein the acrylic resin is selected from at least one of polyurethane acrylic resin, polyester acrylic resin, epoxy acrylic resin and polyether acrylic resin; the number-average molecular weight of the acrylic resin is 1000 to 10000 g / mol, and the viscosity of the acrylic resin under the condition of 25 DEG C is 40000 to 1200000 cps; and / or the viscosity of the acrylic resin at 60 DEG C is 3000-300000cps, and the ratio of the raw material components is limited, and the steps of the preparation method and the temperature of a printer resin tank in the printing process are controlled, so that the prepared printed finished product has good mechanical property, high notch impact strength and low size shrinkage.

The invention discloses a bottom anti-reflection composition for 193 nm photoetching. The bottom anti-reflection composition comprises the following components in parts by weight: 50-200 parts of a compound as shown in a formula I, 1-100 parts of a cross-linking agent, 0.01-50 parts of a light absorbent, 0.01-50 parts of a photoacid generator and a solvent. The coating prepared from the composition provided by the invention has relatively strong anti-reflection capability, and an etching process can be avoided.

An adhesive composition for forming an adhesive layer that temporarily bonds a semiconductor substrate or electronic device to a light-transmitting support, the adhesive composition comprising: (a) a light absorber, a polyisocyanate, and a polyol; or (b) a light absorber, a polyurethane resin comprising polymeric carbon-carbon unsaturated bonds, and a polymerization initiator.

The invention provides a 3D printing material suitable for photocuring and a preparation method thereof. The 3D printing material comprises an acrylic-terminated hydrogenated nitrile rubber prepolymer, a reactive diluent, a photoinitiator and a light absorbing agent, the structural general formula of the acrylic-terminated hydrogenated nitrile rubber prepolymer is as shown in formula 1, and in the formula 1, R1 and R4 are respectively and independently at least one of C2-C10 alkylene groups; r < 2 > and R < 5 > are respectively and independently at least one of alkylene groups of C < 2 > to C < 10 >; r3 and R6 are respectively and independently at least one of the following; x is 10-40, y is 10-40, and z is 10-40. The 3D printing material provided by the invention can be rapidly cured to realize 3D printing, the oil resistance of the 3D printing material is equivalent to that of traditional HNBR, repeated printing and parallel printing can be realized, and a 3D printing product has a shape memory effect.

This application provides a long-wave infrared light absorber based on phase change materials and MIM structures, belonging to the field of integrated photonic devices. The absorber includes a reflective layer, a double dielectric layer, and a metasurface layer. The metasurface layer allows light waves to enter the double dielectric layer through diffraction. The reflective layer and the metasurface layer form two reflective surfaces, allowing the light waves to undergo multiple reflections and achieve FP-cavity resonance. When the metasurface layer is crystalline and the polarization state of the light wave is not parallel to that of the metasurface layer, both the reflective layer and the metasurface layer possess metallic properties, enabling plasmon resonance when the frequency of the incident light wave matches the collective oscillation frequency of free electrons in the metal. Both FP-cavity resonance and plasmon resonance lead to the localization and enhancement of the electromagnetic field within the double dielectric layer, thereby enhancing the absorption of light waves. This application achieves reversible switching between two light wave absorption states by changing the phase state of the phase change material.

The present invention provides a protective film agent and a method for processing a workpiece, the protective film agent being capable of forming a protective film suitable for processing with a laser beam. The protective film agent is coated on a workpiece when the workpiece is processed, the protective film agent comprising: a water-soluble resin; a light absorber having a flavone structure, a flavonol structure, or an isoflavone structure; and a solvent that dissolves the resin and the light absorber.

The application relates to the technical field of high polymer composite materials, in particular to a zinc-aluminum-magnesium alloy steel-plastic co-extrusion floor composite material and a preparation method thereof, which comprises the following components in percentage by mass: 70-80% PE resin; 10-20% PMMA resin; 5-10% toughening agent; 2-5% compatilizer; 0.5-2% antioxidant; 0.5-1% light stabilizer; 1-5% light absorber; 1-2% lubricant; the above raw materials are weighed according to the proportion, mixed uniformly in a high-speed batching stirrer, melt-extruded and granulated in a double-screw extruder, and after water tank cooling, granulation and drying treatment, the composite material is obtained; through formula synergistic modification, the performance goals of low gloss, high wear resistance, excellent aging resistance and size stability of the material are realized; meanwhile, the application also provides a preparation method of the alloy material, which is simple, controllable and suitable for industrial large-scale production.

The invention provides a cesium lead bromide quantum dot / single-layer molybdenum disulfide 0D / 2D heterojunction photoelectric sensor and a preparation method thereof, and belongs to the technical field of photoelectric devices. Constructing a patterned bottom electrode by adopting an Au / p + type silicon substrate / SiO2 structure; preparing a single-layer molybdenum disulfide (MoS2) film by a mechanical stripping method, and transferring the single-layer molybdenum disulfide (MoS2) film to the patterned silicon wafer electrode; and spin-coating the single-layer molybdenum disulfide film with the quantum dot solution, drying and annealing to obtain the cesium lead bromide quantum dot / single-layer molybdenum disulfide 0D / 2D heterojunction photoelectric sensor. According to the invention, CsPbBr3 QDs with efficient light absorption and single-layer MoS2 with high carrier mobility are integrated together, and CsPbBr3 QDs are used as an effective light absorbent to enhance a local electric field around MoS2. And by utilizing the synergistic effect of the CsPbBr3 QDs and the single-layer MoS2, the separation rate of photon-generated carriers in the heterojunction is accelerated, and the light absorption capability of the MoS2 device is improved. The p + type silicon substrate is combined with the annealing process, a Br-rich passivation ultra-clean II type heterojunction interface is constructed, and the charge separation efficiency and the environmental stability are remarkably improved.

Provided are an antireflection film having an antireflection layer that has an integrated reflectance of 1% or less in a wavelength band of 1530-1625 nm and has an uneven structure on the surface thereof, a stray light suppression film having at least the antireflection film and a light absorber, and a light receiving device having the stray light suppression film inside the device.

Methods and corresponding structures for fabricating an integrated electronics structure are provided. A temporary stack is provided that includes a carrier body, a bonding layer, and an electronics structure base that is crystallographically grown on the bonding layer. An electronics structure is built on the electronics structure base, defining an integrated electronics structure that includes the electronics structure base and the electronics structure. A pulse of light is used to weaken the bonding layer, and the integrated electronics structure is separated from the carrier body.

This invention relates to the field of geomembrane material technology, specifically to a modified recycled polyethylene geomembrane and its preparation method. It addresses the problem that existing recycled polyethylene geomembranes are prone to aging and erosion under prolonged sunlight, oxidation, and acid / alkali environments, leading to a significant decline in performance and affecting their service life. This preparation method uses recycled polyethylene resin as the main raw material to prepare the geomembrane, achieving resource recycling and demonstrating significant economic and environmental benefits. Adding multi-effect light stabilizers and composite light absorbers significantly improves the mechanical properties of the geomembrane, as well as its aging resistance and acid / alkali resistance, making it suitable for various applications requiring seepage prevention, isolation, and reinforcement, such as water conservancy, transportation, and construction. Furthermore, it significantly extends the service life of the geomembrane, reduces replacement frequency, and further embodies the concept of environmental protection and energy conservation.

This invention discloses a near-infrared light absorber, a composition containing the same, and a filter. The near-infrared light absorber has the structure shown in formula (I): (I); wherein: R1 is independently selected from H, C1-C8 alkyl; R2 is independently selected from H, C1-C6 alkyl; R3 is independently selected from H, C1-C4 alkyl; R4 is independently selected from the following groups: wherein R5 is selected from C1-C12 straight-chain or branched alkyl, phenyl, or C1-C4 alkyl-substituted phenyl; n is 1, 2, 3, or 4. It has a larger maximum infrared absorption wavelength λmax and IR T50%, which can improve the imaging color of visible light filters.

The invention relates to a method and system for obtaining a customized optical article having at least one predetermined optical property in visible and / or invisible light domain(s) selected from absorbance and transmittance, by thermal transfer via a sublimation technique from a printed support comprising a support and at least one ink (C, M, Y) printed on the support according to an inking level, the at least one ink comprising at least one sublimable dye selected from visible dyes, invisible dyes and mixtures thereof. The invention particularly applies to an ophthalmic lens part, even though it may concern any optical article to be tinted and / or provided with an invisible light absorber such as IR, UV and / or blue light absorbers. The method comprises controlling the inking level of the at least one ink (C, M, Y) to obtain said customized optical article, by using an experimentally determined variation law of the at least one predetermined optical property as a function of the inking level of the at least one ink.

This invention discloses a colored radiative cooling thin film based on Fano resonance and its preparation method. The thin film comprises a structure stacked sequentially from bottom to top: M1D1M2D1AD'. The structure of the thin film is asymmetric, where M1 represents a first metal layer, M2 represents a second metal layer, A represents an absorption layer, D1 represents a first dielectric layer, and D' represents a symmetrical dielectric layer unit. The M1D1M2 structure is a discrete state, serving as a narrowband light absorber, while the M2D1AD' structure is a continuous state, serving as a broadband light absorber. D' serves as a continuous antireflection layer. The narrowband and broadband light absorbers are coupled through a shared second metal layer M2, achieving Fano resonance. This invention features a high-purity, tunable reflective structural color, high reflectivity in the solar spectrum, and high emissivity in the atmospheric window, thus achieving excellent radiative cooling effects.

The application provides a backlight module, which comprises a brightness adjusting assembly and a light guide plate. The brightness adjusting assembly comprises a driving element and a brightness adjusting element. The side of the brightness adjusting element, which is opposite to the driving element, faces the light guide plate. The brightness adjusting element comprises a shell, a light-reflecting liquid and a light-absorbing body arranged in the shell. The driving element forms a preset electric field or a preset magnetic field to drive the light-absorbing body to move. Part of the light in the light guide plate is emitted to the plurality of brightness adjusting elements. The light-absorbing body moves to a position where the light-absorbing body is spaced from the inner top wall. The light-reflecting liquid reflects the light emitted to the light-reflecting liquid to the light guide plate. The light-absorbing body moves to a position where the light-absorbing body is in contact with the inner top wall. The light-absorbing body absorbs the light emitted to the light-absorbing body. Therefore, the brightness adjusting element can be switched between reflecting light and absorbing light, the brightness of the display device can be adjusted in different zones, the display device with high contrast is realized, a large number of lamp beads are not needed, the energy consumption is saved, and the cost is reduced. The application further provides a display device.

This invention relates to a hot stamping film based on digital printing technology, its preparation method, and its application, belonging to the field of hot stamping film technology. The hot stamping film of this invention comprises, from bottom to top, a substrate, a release layer, a protective layer, and an adhesive layer. The release layer comprises the following raw materials in parts by weight: 20-30 parts thermoplastic polyurethane resin and 2-4 parts micronized polyethylene wax. The protective layer comprises the following raw materials in parts by weight: 10-20 parts silicone-modified acrylic resin, 5-9 parts fluorine-modified silicone resin, 0.1-0.3 parts drying agent, 0.5-1 part light stabilizer, 0.5-1 part light absorber, and 1-3 parts curing agent. The hot stamping film prepared by this invention has water resistance, shatter resistance, and stain resistance. It offers higher production efficiency and eliminates flowing liquid, ensuring high quality and environmental protection, while also reducing production costs. The hot stamping film based on digital printing of this invention allows for personalized customization, is easy to operate, possesses exquisite patterns printed by thermal sublimation, and also has excellent substrate applicability and adhesion.

The application provides a conductive polymer-derived ceramic and a preparation method thereof, and relates to the technical field of ceramics.The preparation method comprises the following steps: uniformly mixing a silicon-containing polymer precursor, a silane coupling agent, a photosensitive monomer, a photoinitiator, a light absorber and an oxygen polymerization inhibitor to obtain a precursor slurry; performing light-curing printing on the precursor slurry to obtain a ceramic body; performing pyrolysis treatment on the ceramic body to obtain an intermediate sample; and performing sintering treatment on the intermediate sample under an inert gas protection atmosphere to obtain a polymer-derived ceramic; wherein the temperature of the sintering treatment is not lower than 1450 DEG C.For the preparation of the polymer-derived ceramic through the DLP molding technology, the method of the application can ensure that the volume shrinkage of the ceramic body obtained through light-curing molding is small, and the polymer-derived ceramic with good conductivity can be obtained.

The application discloses a kind of color laser marking composition and its preparation method and application.The color laser marking composition includes the following components calculated by weight parts: resin 88-110 parts;Photosensitive reversible toner 0.1-5 parts;Visible light absorber 0.01-1 parts;Pigment 0.1-2 parts;Ultraviolet absorber 0.05-1 parts.In the application, the color laser marking composition can mark color marks on white and color substrates by adding photosensitive reversible toner and visible light absorber, combined with ultraviolet absorber, has higher definition and color saturation, and marking is controllable.

The present disclosure provides a three-dimensional hydrogel prepared using a bio-ink composition comprising methacrylated hyaluronic acid, methacrylated gelatin, a photoinitiator, and a light absorber; and a method of preparing the three-dimensional hydrogel or lenticule. The present disclosure also provides a method of treating corneal tissue repair in a subject in need thereof using the three-dimensional hydrogel or lenticule.

The present invention provides a light absorber that exhibits high transmittance in the visible light region, particularly in the red band, and can effectively block near-infrared light. [Solution] The transmission spectrum of the light absorber 10 at an incident angle of 0° satisfies the following conditions: (I) The average transmittance in the wavelength range of 450nm to 600nm is 75% or more. (II) The first wavelength at which the transmittance is 50% in the wavelength range of 350nm to 450nm is between 380nm and 440nm. (III) The second wavelength at which the transmittance is 50% in the wavelength range of 650nm to 750nm is between 680nm and 740nm. (IV) The maximum transmittance in the wavelength range of 350nm to 370nm is 1% or less. (V) The maximum transmittance in the wavelength range of 800nm ​​to 900nm is 5% or less. (VI) The maximum transmittance in the wavelength range of 1100nm to 1200nm is 5% or less.

The invention provides glass with a coating and a vehicle. The surface of the glass is provided with a coating; the coating contains an ultraviolet light absorber and an infrared light absorber; the peak values of all absorption peaks of the ultraviolet light absorber are below 390nm, and the maximum absorption peak is within the wavelength range of 350nm-380nm; the peak values of all absorption peaks of the infrared absorbent are more than 900nm, and the maximum absorption peak is in the wavelength range of 950nm to 1500nm; the transmittance of the glass with the coating in the wavelength range of 300nm-400nm is less than or equal to 1%; the transmittance of the coated glass in the wavelength range of 780 nm to 2500 nm is smaller than or equal to 15%. The invention further provides a vehicle provided with the glass. The glass provided by the invention has relatively low transmittance for ultraviolet rays and infrared rays with the wavelength range of 380-400nm.

A color conversion sheet according to one embodiment of the present invention comprises: a wavelength conversion layer in which an organic phosphor is dispersed in a resin matrix; and a light absorption layer in which an organic light absorber on one surface of the wavelength conversion layer is dispersed in a binder resin, thereby absorbing short-wavelength blue light that may deteriorate an organic phosphor included in the wavelength conversion layer without affecting light emission characteristics of the organic phosphor, therefore, the organic phosphorescent body which is safe to the environment is adopted, the excellent color gamut and brightness characteristics are achieved at the same time, low color change and excellent brightness reliability are shown during light irradiation not only at normal temperature but also in a high-temperature environment, and excellent performance is achieved in the aspect of eyesight protection.

A light absorber includes a plurality of carbon nanotubes, a plurality of carbon particles, and an epoxy resin, the plurality of carbon nanotubes form a carbon nanotube network structure, the epoxy resin is coated on the surface of the plurality of carbon nanotubes, and the plurality of carbon particles are connected through the carbon nanotube network structure coated with the epoxy resin. In addition, the present application also provides a preparation method of the light absorber.

A light-absorbing composition includes a silicon-containing compound α and a light-absorbing compound. The silicon-containing compound α is at least one selected from the group consisting of an alkoxysilane including a group α-1 having 10 or more carbon atoms and a hydrolysate of the alkoxysilane.

This invention discloses a hierarchical porous material with catalytic activity, its preparation method, and its application. A photosensitive resin is obtained by stirring and reacting a halogen-containing photopolymerizable ionic liquid monomer, a photopolymerizable monomer, a multifunctional crosslinking agent, a non-reactive porogen, a photoinitiator, and a light absorber. The photosensitive resin is then placed in a 3D printing device to print a preform. The preform is placed in a supercritical drying device, where liquid CO2 is used as the medium for extraction and displacement. Subsequently, the temperature and pressure are increased to above the supercritical point of CO2, and the hierarchical porous material with catalytic activity is obtained through supercritical drying. This invention introduces highly nucleophilic halide ion sites and utilizes photopolymerization 3D printing and polymerization-induced phase separation technology to construct a hierarchical porous material that combines macroscopically customized flow channels with microscopically interconnected pores. This material, as a catalyst, can achieve highly efficient catalysis of the cycloaddition reaction of CO2 and epoxides under mild conditions.

A solar cell device having a solid state light absorber region that incorporates a donor-acceptor particle structure. The particle structure includes acceptor particles that generate a flow of electrons in the solid state light absorber region in response to absorbed photons; and donor particles comprising a phosphorescent material, wherein each donor particle is coupled to a group of acceptor particles, and wherein the phosphorescent material absorbs high energy photons and emits lower energy photons that are absorbed by the acceptor particles.