56results about How to "High photosensitivity" patented technology

The invention relates to a pyrazole oxime ester photoinitiator with a chemical formula (I). The photoinitiator has excellent application performance and extremely high photographic performance, can greatly improve the photocuring performance when being applied to photosensitive compositions and remarkably improve the production efficiency of the photosensitive compositions in the application fields, such as the preparation of color filters, and the like. The invention also relates to a preparation method of the pyrazole oxime ester photoinitiator and the application of the pyrazole oxime ester photoinitiator to the photosensitive compositions.

The invention provides a hydrogel active dressing with antibacterial and anti-inflammatory functions, and belongs to the field of medical hydrogel dressings. The dressing is prepared by the followingsteps: taking 2-vinyl-4, 6-diamino-1, 3, 5-triazine and hydroxyethyl acrylate as monomers, preparing a linear copolymer by adopting a chemical polymerization method, blending with amyloid protein fibers, generating a loose cross-linked network under the action of a cross-linking agent to form a first gel product, introducing a mixture of carboxymethyl chitosan and a water-soluble polyphenol compound into the loose first gel product, performing freeze-thaw cycle treatment under the combined action of the cross-linking agent in the first gel product, and performing secondary gelation to form cross-linked hydrogel which is mainly subjected to physical cross-linking and is assisted by chemical cross-linking. The mechanical property of the hydrogel dressing is greatly improved, and the hydrogeldressing has good antibacterial, anti-inflammatory and self-recovery functions and is suitable for wound protection and treatment of burns, scalds and traumatic wounds.

The invention provides a color filter array and an image processing method. The color filter array comprises color filter units and a color-free filter unit, wherein the color filter units comprise at least three primary color filters which are distributed adjacently, and each color filter unit comprises a red color filter, a green color filter and a blue color filter; and the color-free filter unit comprises color-free color filters which are distributed on the periphery of the color filter units. Because the color-free color filters allow all colors of light to transmit, light rays can be directly irradiated on an image sensor by virtue of the color-free color filters so as to ensure that the light-sensing performance can be improved. In addition, when image processing is performed, a color channel of colored images obtained by virtue of imaging performed by the color filter units in the color filter array and a brightness channel of gray level images obtained by virtue of imaging performed by the color-free filter unit in the color filter array are fused to obtain a required image, and thus the light-sensing performance and resolution degree of an imaging system can be further improved.

The invention discloses a 1-3 substituted aryloxide dendritic phthalocyanine complexes as well as a preparation method and use thereof, which includes the steps of: firstly synthesizing tree-shaped 1-3 alcohol molecules with 1-3 substituted cyano as end-group by Frechet synthesizing method. Then, synthesizing corresponding phthalocyanine precursor containing tree-shaped molecule using '1-3' substituted cyano as end-group from reaction of 4-nitro phthalonitrile with '1-3' substituted alcohol respectively. Subsequently, synthesizing corresponding aryloxide dendritic phthalocyanine using '1-3' substituted cyano-containing end-group from '1-3' substituted tree-shaped molecule phthalocyanine precursor ring using cyano as end-group. As well as hydrolyzing aryloxide dendritic phthalocyanine containing cyano end-group into '1-3' aryloxide phthalocyanine using carboxy group as end-group. The invention also discloses application of 1-3 substituted aryloxide dendritic phthalocyanine complexes in photosensitive agent for photodynamic therapy, and the phthalocyanine has the advantages that the phthalocyanine is not liable to form into aggregates under high concentration, the quantum productivity of singlet oxygen is high, and the light-sensitive activity of the photosensitive agent is high.

The invention discloses a photodynamic sterilization fresh-keeping film for packaging ready-to-eat jellyfish. The photodynamic sterilization fresh-keeping film is prepared in the mode that food-gradecurcumin and food-grade EDTA disodium are compounded to serve as a photosensitizer compound, chitosan and glycerinum are combined to serve as a matrix material, and a solution-casting method is conducted. After the photodynamic sterilization fresh-keeping film is adopted to package the ready-to-eat jellyfish, the photodynamic sterilization fresh-keeping film is matched with non-toxic LED visible light sources for use, and thus the aerobic bacterial count on the ready-to-eat jellyfish is effectively decreased. The tests show that the disinfection rate of the photodynamic sterilization fresh-keeping film on the ready-to-eat jellyfish is up to 99.9%, the sterilization effect is significant, the flavor and taste of the ready-to-eat jellyfish are not significantly affected, the shelf life of the ready-to-eat jellyfish can be prolonged from one month to five months, and the food safety problem of the ready-to-eat jellyfish is ensured.

An optical data storage system and method with non-destructive multiple readout of 3-D data stored in multiple layers uses two-photon induced fluorescence modulation. The novel system uses the photochromic properties of the open and closed form of diarylethene in the two-photon energy transfer-based read-out method of a 3-D optical data storage system, providing more than 10,000 readout cycles without significantly compromising the stored data. The system of the present invention can be recorded and read out using the same wavelength simply by changing the intensities. Also, since the incident intensity used in two-photon readout is low due to the efficient absorption of the two-photon absorbing fluorene dye, a less expensive, nanosecond laser diode can be used, making this two-photon 3-D data storage system less expensive, stable, highly responsive, and reliable. This photochromic system is capable of either write-once read many (WORM) or erasable and rewritable 3D optical data storage.

The invention discloses graphene/nano-silver light-sensitive conductive composite paste and a preparation method therefor. The composite paste comprises the following raw materials based on weight: graphene and spherical nano-silver, wherein the weight ratio of graphene to spherical nano-silver is 1 to 2.0-3.5; and the preparation process comprises the steps of drying graphene and then mixing the raw materials under yellow light to obtain the composite paste. Due to the reasonable formula of the graphene and nano-silver and the new technological method, the light-sensitive silver paste obtains the characteristics of clear image development, high resolution, extremely high conductivity, high coating film strength and the like; the paste is subjected to silk-screen printing, letterpress printing, surface drying, exposing and developing to obtain a pattern with the required high resolution (L/S is greater than 30/30[mu]m); and in addition, the composite paste has excellent printing performance, high storage stability, excellent conductivity, high resolution, and high adhesive force.

The invention belongs to the technical field of waterproof coatings, and particularly relates to a polymer cement waterproof coating. According to the polymer cement waterproof coating disclosed by the invention, by using ethyl acrylate, methyl acrylate and the like as basic raw materials, acrylate emulsion is synthesized; in a synthesizing process, the acrylate emulsion is modified by using silicone monomer methyl vinyl dichlorosilane; a silicon-oxygen bond is introduced, so that binding degree between the silicon-oxygen bond and cement is increased, performance and firmness of the membrane is improved; meanwhile, under an effect of Lewis acid, an unsaturated bond is introduced by using maleic anhydride, so that an active group of the emulsion is increased, an effect of the unsaturated bond and calcium ions is increased, water tolerance is further improved, and the photographic property of the emulsion is also improved; by compounding with butanol, the flowability of the membrane in the early stage is improved; by utilizing unrecoverable performance of calcination of kyanite is utilized, pore formation in the cement is carried out, and contact performance of the cement and the emulsion is increased; meanwhile, the emulsion is compounded with o-cresol aldehyde epoxy resin, so that performance of self-curing membrane formation of the coating is increased, and the phenomenon that a curing membrane is easily swelled by water again is avoided.

The invention provides a depth camera device used for a mobile communication device. The depth camera device comprises an infrared emitter module which is configured to emit infrared light in a first wavelength range; and an infrared camera module which is configured to obtain image light and generate a depth image. The infrared camera module comprises an imaging lens which is configured to capture the image light, a first antireflection film being formed on the surface of the imaging lens, wherein the first antireflection film is used for enhancing transmitting intensity of the light in the first wavelength range; and a black-and-white image sensor which is configured to be aligned with the imaging lens and receive the image light from the imaging lens directly without passing through any light filter, and the black-and-white image sensor responds to the full-waveband image light directly received from the imaging lens and generates electrical signals. The depth camera device can improve photosensitive performance of the image sensor on the infrared light, saves power consumption, accelerates data acquisition speed and simplifies processing flow.

The invention discloses novel 3-hydroxyl-2-naphthoic acid (1,n-alkylene glycol) diester and a synthetic method thereof, belonging to the organic synthesis field. The 3-hydroxyl-2-naphthoic acid (1,n-alkylene glycol) diester is shown as the description; the synthetic method comprises the steps of carrying out esterification reaction on 3-hydroxyl-2-naphthoic acid and hydroxyl-terminated straight-chain alkane glycol in the presence of a dehydrating agent. The novel diazo coupling agent is of a double-naphthalene structure, and therefore, the coupling agent has an electron donating effect and good stability. The novel diazo coupling agent has the advantages of obviously improving the photosensitive property, achieving high photosensitive speed up to 15-20 seconds, having capability of generating a pure brown image, having good stability and convenience in use without combination of other stabilizers and coupling agents.

The invention relates to the technical field of optical imaging devices, and particularly discloses a camera lens, a camera module, electronic equipment and an automobile. The camera lens comprises afirst lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side, wherein the first lens element has negativerefractive power, the second lens element has negative refractive power, the third lens element has positive refractive power. the fourth lens element has positive refractive power, the fifth lens element has negative refractive power, The sixth lens element has positive refractive power. The camera lens can directly keep small size and light weight without increasing the number of lens pieces, can keep good optical performance, and can well capture details of a shot object.

The invention relates to the technical field of an optical lens, in particular to a high-resolution, large-image-plane, small-size and infrared confocal zoom optical system, which is sequentially provided with, from an object side to an image side, a first lens group with a positive focal length, a second lens group with a negative focal length, a diaphragm, a third lens group with a positive focal length, a fourth lens group with a positive focal length and a photosensitive chip. The first lens group, the diaphragm and the third lens group are fixed with respect to the photosensitive chip, the second lens group and the fourth lens group can move forward and backward with respect to the photosensitive chip, the second lens group moves toward the third lens group gradually when the opticalsystem changes from a short focal length to a long focal length, and a focusing effect is realized when the fourth lens group moves with respect to the photosensitive chip. The third lens group includes three lenses, wherein one aspheric lens in the third lens group and one aspheric lens arranged in the second lens group can perform aberration correction. An aspheric lens in the fourth lens groupcan perform correction of the field curvature.

The invention relates to a degradable paper cup and a preparation method thereof. The degradable paper cup comprises a cup body and a degradable film coating the surface of the cup body. The degradable film comprises the following components in parts by weight: 70-90 parts of polyglycolic acid; 15-25 parts of cassava starch; 10-20 parts of polyvinyl alcohol; 5-10 parts of acetic anhydride; 4-8 parts of trehalose; 3-6 parts of methyl orthoformate; 2-5 parts of hydroxyethyl cellulose; 1-3 parts of a compatilizer; and 1-3 parts of a stabilizer. The preparation method specifically comprises the following steps of: S1, preparing raw paper; S2, preparing a coating material; S3, performing film pressing and covering; and S4, preparing the paper cup: splitting film-coated paper, and then placing the split paper in a mold to be curled and molded to obtain the paper cup. The paper cup prepared according to the formula and the preparation method disclosed by the invention has a relatively high degradation speed.

The invention belongs to the technical field of research and development of anti-cancer drugs, and particularly relates to a Pt (II) complex with photodynamic tri-negative breast cancer resisting activity and a preparation method and application thereof. According to the invention, iodo-BODIPY with excellent photosensitive activity is used as a photosensitive group, DPA (dimethylamine pyridine) is used as a Pt (II) coordination group, and the Pt (II) complex with photodynamic activity is creatively designed and synthesized. The Pt (II) complex belongs to a novel compound, shows excellent in-vitro tri-negative breast cancer resisting activity, has potential medicinal value and is expected to be used for preparing various tri-negative breast cancer resisting drugs. The structural formula of the Pt (II) complex is as shown in the specification.

The invention discloses an infrared multipoint touch television computer all-in-one machine, which consists of a touch screen, a display, a computer module and a television module, wherein the touch screen is connected with the computer module through a universal serial bus (USB) interface and is used for communication through a USB data line; audio/video data are transmitted between the computer module and the television module through audio/video connecting lines; the touch screen is provided with an infrared emission array and a corresponding infrared receiving array; the infrared emission array consists of a plurality of infrared emission tubes; and each infrared emission tube consists of an emission tube core and a lead. The machine is characterized in that: a small-sized convex lens is arranged in front of a luminous surface of the emission tube core in each infrared emission tube; and the emission tube core is positioned at the focus point of the convex lens. The infrared emission tubes capable of converging infrared rays emitted by the infrared emission tubes are adopted, so that the emitted energy loss of the infrared rays is effectively reduced, and the size of the touch screen of the infrared multipoint touch television computer all-in-one machine can be increased.

The invention discloses a fluorenyl donor-acceptor H type molecular material with high fluorescence quantum efficiency and a preparation method and applications thereof. The bridging electron acceptor unit of Friedel-Crafts reactions of tertiary alcohol of a halogenated aryl group is taken as the bridging group; the aryl group is coupled to a chromophoric group through the halogen to form the H type molecular material, the structural formula of the molecular material is shown in the description, in the structural formula, Ar1, Ar2, Ar3, Ar4, and Ar11 individually represent an aryl group, Ar11 is an electron acceptor unit, Ar5, Ar6, Ar7, Ar8, Ar9, and Ar10 individually represent an aryl group or a non-aryl group; and SG1, SG2, SG3, and SG4 represent an aryl group or a non-aryl group. The synthesis of the material is in a modularization mode, the selection range of electron acceptor units is wide, the reaction steps are simple, the conditions are mild, and moreover, the molecular material has high thermal stability, electrochemical stability, and optical stability, and is an organic optoelectronic functional material with a wide application prospect.

The invention relates to the technical field of high polymer materials, in particular to a photosensitive diamine monomer and a preparation method thereof, resin containing the photosensitive diamine monomer and a photosensitive resin composition. The invention provides a photosensitive diamine monomer. The structural formula of the photosensitive diamine monomer is as shown in formula (1). The preparation method of the photosensitive diamine monomer specifically comprises the following steps: preparing a primary product; preparing a secondary product; preparing a photosensitive diamine monomer crude product; and purifying the photosensitive diamine monomer crude product. The invention also provides a photosensitive diamine monomer-containing resin prepared by using the photosensitive diamine monomer, and a photosensitive resin composition prepared by using the photosensitive diamine monomer-containing resin. According to the invention, the photosensitivity and the film retention rate of the photosensitive resin composition can be improved at the same time.

The invention belongs to the technical field of material surface treatment and particularly relates to a preparation method of a super-hydrophobic surface of a corrosion-resistant magnesium alloy. According to the method, surface corrosion treatment is performed on the magnesium alloy by the aid of an organic acid firstly, the uneven surface is formed on the surface of the magnesium alloy, then treatment is performed in a discharging material, nano titanium dioxide in the discharging material settles in the concave position of the magnesium alloy, a central point is formed, substances in the discharging material form a film on the surface of the magnesium alloy during electrification, meanwhile, a snowflake shape is formed in the nano titanium dioxide central point, the hydrophobic performance is increased, the magnesium alloy and silver ions form oxide to be quickly attached to the surface of the magnesium alloy, the formed super-hydrophobic surface forms a micro-two-layer structure,the structure and an organic silicone monomer are subjected to a grafting reaction under the action of the nano titanium dioxide, the hydrophobic performance is improved, the corrosion resistance is improved, then waterborne polyurethane is synthesized, a modified polymer has the photosensitive property through modification by the aid of glycerol monolaurate and fumaric acid, and self-setting is performed under the action of titanium dioxide.

The invention relates to the technical field of light curing, concretely to a photosensitive composition containing acridine oxide. The composition comprises 1-3 mass parts of the acridine oxide, 1-6 mass parts of Dacocur1173, Dacocur184 or a mixture of both, 10-80 mass parts of ethene unsaturated compound monomer and 10-80 mass parts of ethene unsaturated compound prepolymer. The invention provides the composition containing the acridine oxide together with an alpha-hydroxy ketone photoinitiator; and the composition has relatively high surface-curing and deep-curing performances and high photosensitive activity, can reduce use of the alpha-hydroxy ketone compound and therefore reduce odor resistance, is simple in preparation technology, and can substitute traditional photoinitiators and be used in light-curing formulas.

The invention discloses a stackable sensor chip structure and a preparation method thereof. Through adding a converter wafer between a pixel device wafer and a logic device wafer, areas originally for accommodating a column selector, a source electrode follower and a resetting device on the pixel device wafer are cleared out so that the area of a pixel photosensitive region is increased and the photosensitive performance of the chip is improved. Therefore, the shooting effect under a low-illumination condition is improved and isolation of pixel-area transmission gratings and the column selector, the source electrode follower and the resetting device is strengthened and thus parameters such as dark current and noise and the like are reduced. The stackable sensor chip structure is scientific and reasonable in design, high in compatibility with a traditional technology and easy to realize.

The invention discloses a high-light-sensitivity photoresist composition taking melamine and anacardol modified phenolic resin as a matrix, belongs to the field of macromolecule material photoetching techniques, for overcoming the defect of insufficient thermal resistance of glue film etched by the existing plasma dry method, and improving the light exposure efficiency by intensifying the light sensitivity. The high-light-sensitivity photoresist composition is formed by blending the phenolic resin obtained by the modification of melamine and anacardol, a light sensitive agent, a sensitizer, an additive and a solvent at certain ratio. The preparation method is simple; the system compatibility is relatively good; the toughness and thermal resistance of the phenolic resin are improved by the advantages of modification of melamine and anacardol, and the light sensitive performance is improved by adding a certain proportion of a chemical sensitizer, so that the favorable thermal resistance and high light sensitive performance of the type of ultraviolet positive photoresist are improved, and the application field of the photoresist is widened.

The present invention relates to a zoom optical system with high resolution, large image plane, low cost and no stray light. From the object side to the image side, a first lens group having a positive focal length, a second lens group having a negative focal length, an iris diaphragm, a third lens group having a positive focal length, a fourth lens group having a positive focal length and a photosensitive chip are disposed in this order. The first lens group, the iris diaphragm and the third lens group are fixed relative to the photosensitive chip, and the second lens group and the fourth lens group can move back and forth relative to the photosensitive chip. In the process of changing the optical system from the short focal length to the long focal length, the second lens group moves towards the third lens group gradually, and the fourth lens group is moved relative to the photosensitive chip to realize the focusing effect. Both the front end and the rear end lens of the third lens group and the lens at the rear end of the fourth lens group are aspherical lenses. In the scheme, the aspherical lenses can correct aberration and field curvature, so that the zoom optical system obtains higher imaging quality.

The invention discloses a photosensitive resist for a thermosensitive positive CTP plate, and a preparation method thereof, and relates to the field of CTP plate materials. The photosensitive resist is formed by starting from a photosensitive layer of the CTP plate, taking matrix resin and film-forming resin as main raw materials, and well proportioning the main raw materials with other raw materials; a cementing agent is prepared in the process of preparing the photo-sensitive adhesive, polyether triol is a high polymer material with the characteristics of better mechanical property, adhesive property, thermal oxidation resistance, light resistance and the like, but the polyether triol has a large number of hydroxyl groups and is high in water absorption and poor in hydrolytic stability, and the hydroxyl groups are terminated after the reaction of isocyanate groups, so that the problem of poor hydrolytic stability is solved, good adhesion is retained, the adhesion of the photosensitive adhesive can be improved, and the problem that the photosensitive property of the photosensitive adhesive is influenced due to low adhesive force is solved.

The invention discloses a zoom lens. The zoom lens comprises a photosensitive chip, and one side of the photosensitive chip is provided with a first lens group and a third lens group which can be fixed relative to the photosensitive chip; the third lens group is disposed between the first lens group and the photosensitive chip; a fourth lens group movable relative to the photosensitive chip is arranged between the third lens group and the photosensitive chip; a second lens group is disposed between the first lens group and the third lens group to gradually approach the third lens group when the lens is focused from a short focal length to a long focal length; and between the second lens group and the third lens group, an aperture capable of control the amount of light beams entering the lens is provided. The focal length of the first lens group is positive, the focal length of the second lens group is negative, the focal length of the third lens group is positive, and the focal lengthof the fourth lens group is positive. The third lens group comprises an aspheric lens surface, and the fourth lens group comprises an aspheric lens surface. The lens of the invention has high transmittance, good imaging effect, high resolution, small distortion, small volume, large image plane and infrared confocal.

The invention relates to the technical field of photodynamics, in particular to a photodynamic degradation method of polycyclic aromatic hydrocarbon wastewater. A photosensitizer is added into wastewater, and then an LED light source is used for irradiation so that the purpose of degrading polycyclic aromatic hydrocarbon is achieved. According to the method, LED blue visible light is used as a light source, degradation conditions are optimized, and compared with a traditional polycyclic aromatic hydrocarbon treatment method, the method has the advantages of being simple, convenient, efficient,low in price, high in operability, free of toxic and side products, free of secondary pollution to environmental water and the like, and is a novel method for degrading polycyclic aromatic hydrocarbon in wastewater; the requirements of safety, environmental protection, high efficiency and economy can be met, and the application prospect is wide.

The invention relates to a ketoxime ester photoinitiator of general formula (I) and a preparation method thereof. The compound is good in dissolubility, high in thermostability and photosensitive activity, low in toxicity and obviously better in application performance compared with like products. The preparation method is simple, efficient and suitable for industrial production; polluting waste is not generated during the production process; and the product is high in purity.