58 results about "Uv sensitivity" patented technology

A flame detector and burner fuel valve control has an ultraviolet sensitive, cold cathode, gas discharge tube in a DC quench circuit. In the presence of a flame, the circuit generates a pulse signal at a frequency related to the intensity of radiation from the flame. The pulse signal from a contaminated tube is at a higher frequency. A frequency discriminator circuit distinguishes between a flame responsive signal and a contaminated tube signal and controls the burner fuel valve.

There is provided a pattern forming method comprising, in order: (i) a step of forming a film by using an extreme ultraviolet-sensitive resin composition containing (A) a resin having an acid-decomposable group; (ii) a step of exposing the film by using an extreme ultraviolet ray; (iii) a step of heating the film; and (iv) a step of developing the film to form a pattern, wherein in the step (ii), an optical image formed by exposure on the surface of the film is an optical image having a line part with a line width of 20 nm or less as an exposed area or an unexposed area, and, the heating temperature TPEB(° C.) in the step (iii) satisfies the specific formula.

By forming a cap layer on a dielectric barrier layer of a low-k dielectric material stack, the interaction of UV radiation during the generation of pores in the low-k dielectric material may be significantly reduced. In some illustrative embodiments, the cap layer may comprise titanium oxide and / or vanadium oxide which may provide a high degree of reflectivity and absorption, respectively. The layer thickness of the cap layer may be 10 nm or significantly less, thereby reducing any adverse influence on the overall performance of the resulting layer stack.

The mask-less exposure apparatus includes: a stage which moves with the substrate having a photosensitive resin layer with sensitivity to ultraviolet radiation formed thereon; a first light source for emitting light containing a wavelength component in the wavelength range of 300 to 410 nm; a first light irradiation optical system for modulating a radiant flux emitted from the first light source based on data of a desired exposure pattern to image a pattern on the photosensitive resin layer; a second light source for emitting light containing a wavelength component in the wavelength range of 450 to 2500 nm; and a second light irradiation optical system for guiding a radiant flux emitted from the second light source to a second light irradiation area that is set so as to include at least a first light irradiation area.

Formulations, articles and methods for the detection and / or qualification of ultraviolet light. A chemical formulation containing a tetrazolium or formazan complex is used to make a UV sensitive compound. The formulation is used to form a chemical indicator comprising a substrate with the formulation impregnated on or in the substrate. The substrate may be any suitable material and may be coated, uncoated, or laminated. The formulation may be coated on or inserted into a substrate and will form a UV detecting indicator when applied thereto. Depending upon its composition, the formulation will undergo a color change on exposure to different types of ultraviolet radiation, such as UVA, UVB or UVC, and the color change can be correlated to the length of exposure. The indicator can be used to detect and evaluate exposure to ultraviolet light in a variety of settings depending on the specifics of the formulation.

The invention is concerned with the organic ultraviolet rays (UV) optical transducer bases on the phosphorescence material, belongs to the UV sensitivity optical transducer technique field, which applies the existed compound that is with the low ionized power (IP) and upper hole transmission specialty as the donor, and applies the phosphorescence compound that is with the high electron affinity (EA) and the bigger electron transmission specialty as the acceptor, to extend the choice of material availability; the device, with the simple making method of applying the multi-medium structure and the method of heat evaporation for filming with low cost; and so, having the device in small volume, low weight by applying the thin organic medium and the metal electrode layer; and because of the longer excited state life cycle , the exaction diffusion length of the phosphorescence, it is with higher efficiency than the organic polymer photovoltaic diode of the fluorescence material, not only represents on higher response sensitivity against the UV, just to the 300-400nm wave band UV and treats the visible light as the blind zone. The invention is available to use in the science, the industrial, and the commercial fields.

Short tri- and tetrapeptides according to the following Formula I Ar(CH2)mX1—X2—CO—X3—X4—X5-(Trp)n-NX6R are potent, selective agonists of melanocortin 1 receptor (MC1R). Provided herein are skin care compositions including Formula I peptide agonists of MC1R and methods of regulating a skin condition of a mammal that include applying to a treatment surface of the body a safe and effective amount of a skin care composition including a Formula I peptide. The peptides, skin care compositions, and skin care methods described herein are useful in regulating a skin condition of a mammal associated with exposure ultraviolet (UV) radiation, including sunburn, UV sensitivity, photoaging, and skin pigmentation, particularly in the absence of sun exposure.

The invention is related to a detector assembly for detecting vapours, smoke and flames, comprising a detector unit 1 having a UV sensitive photocathode 3, an anode 5, a voltage supply unit 9 connected to the UV sensitive photocathode 3 and to the anode 5 to create an electric field such that photoelectrons emitted from the UV sensitive photocathode 3, when struck by UV light, are forced to move towards the anode 5, and a readout arrangement for detecting charges induced by electrons moving towards the anode 5 thereby generating a signal related to the intensity of detected UV light. The detector assembly further comprises an artificial source 21 for emitting radiation having wavelengths within a wavelength interval, the source 21 being oriented such that UV light from the source 21 can strike the UV sensitive photocathode 3. The wavelength interval coincides with a transmission band of air, and with an absorption band of vapours containing molecules of a complex structure. If a decrease of the signal between the detector 1 and the source 21 is detected a presence of a vapour can be established. The invention is also related to such a method.

The invention belongs to the technical field of research of internal metabolism of Chinese patent medicine, and provides a simultaneous quantitative measuring method of 9 in-blood constituents of a spine date seed water extract in order to solve problems that the HPLC-UV sensitivity is low and the time is over-long in a conventional quantitative analysis of the in-blood constituents of a spine data seed so that the analysis is not suitable for analysis of micro-constituents in blood plasma, and LC-MS / MS is only used for measurement of pharmacokinetics with a single constituent and does not facilitate the research of traditional Chinese medicine pharmacokinetics. Nine in-blood constituents of the spine data seed water extract are simultaneously and quantitatively measured by employing a UHPLC-Q Exactive Orbitrap HR / MS method, the detection sensitivity is improved, and the analysis time is reduced; simultaneous quantitative analysis of three polar compounds including flavone, saponin andalkaloids is conducted; and an analysis technical guarantee is provided for the research of the pharmacokinetics of the spine date seed in rats of normal and PCPA insomnia models, and references areprovided for simultaneous quantitative analysis of multiple constituents of other oral traditional Chinese medicine.

The present invention relates to a photosensitive resin composition excellent in pliability, ultraviolet sensitivity for development, developability with an aqueous alkali solution, and storage stability at room temperature and a circuit substrate employing the same. The photosensitive resin composition includes a siloxane-containing polyamic acid resin having structural units respectively represented by the following formulae (1), (2), and (3) and a photopolymerization initiator incorporated therein. The circuit substrate is coated with the photosensitive resin composition.In the formulae, Ar represents a residue of an aromatic tetracarboxylic acid; R1 represents alkyl group having 1 to 6 carbon atoms or phenyl group; R2 represents alkylene group having 2 to 6 carbon atoms or phenylene group; l represents a number of 0 to 10; R3 represents a divalent group or a direct bond; R4 represents —CH2═CH—R6—, in which R6 represents a direct bond, alkylene group having 1 to 6 carbon atoms, or phenylene group; R5 represents a diamine residue; and m, n, and o, indicating the range of the abundant molar ratios of the respective structural units, are 0.3 to 0.95, 0.05 to 0.7, and 0 to 0.5, respectively.

Present invention relates to a method for rapid measuring niclosamide content in water sample. Said invented liquid extract has large cation and organic solvent, adding aqueous alkali in water sample, niclosamide forming anion, adding liquid extract in water sample to make niclosamide anion and large cation forming ionic complex, organic solvent extracting ionic complex, determining niclosamide content by organic phase organic phase visual colorimetry visual colorimetry or visible spectrophotometric method. Said invented solves current detection method limitation of chromatography voltammetry method nonadaptability to express analysis and UV sensitivity insatiable to application rate analytic requirement spectrophotometry etc. Said invention can realize spectrophotometric method even visual colorimetry rapid determination.

A semiconductor manufacturing apparatus and a method of manufacturing semiconductor device are provided. The semiconductor manufacturing apparatus includes a loading unit configured to load a wafer having a first surface to which a die attach film is attached through an ultraviolet sensitive layer, an ultraviolet light source configured to irradiate ultraviolet light onto the first surface of the wafer attached to the die attach film to weaken adhesive strength of the ultraviolet sensitive layer, and a camera configured to generate a wafer image by capturing ultraviolet light transmitted through a second surface of the wafer opposite to the first surface of the wafer.

A hand-held glow writing apparatus constructed for use with an ultraviolet sensitive surface to produce images that glow in the dark and will fade over a time period. The device including a plurality of LED lights arrange in a parallel line. The device includes a selector switch for electively choosing an image pattern stored on a memory. The LED lights when activated, turn on and off in accordance with a predetermined sequence timed for a movement of the writing apparatus across ultraviolet sensitive surface whereby the selected image pattern will imprint an image on the ultraviolet sensitive surface that fades over the time period.

The invention is concerned with the organic ultraviolet rays (UV) optical transducer bases on the phosphorescence material, belongs to the UV sensitivity optical transducer technique field, which applies the existed compound that is with the low ionized power (IP) and upper hole transmission specialty as the donor, and applies the phosphorescence compound that is with the high electron affinity (EA) and the bigger electron transmission specialty as the acceptor, to extend the choice of material availability; the device, with the simple making method of applying the multi-medium structure and the method of heat evaporation for filming with low cost; and so, having the device in small volume, low weight by applying the thin organic medium and the metal electrode layer; and because of the longer excited state life cycle , the exaction diffusion length of the phosphorescence, it is with higher efficiency than the organic polymer photovoltaic diode of the fluorescence material, not only represents on higher response sensitivity against the UV, just to the 300-400nm wave band UV and treats the visible light as the blind zone. The invention is available to use in the science, the industrial, and the commercial fields.

The invention provides a UV (ultraviolet) barrier optical adhesive and a preparation method thereof, and the UV barrier optical adhesive is characterized by comprising the following components in parts by weight: 10-60 parts of urethane acrylate; 10-60 parts of a compound of formula (I); 1-20 parts of a filler; 10 to 40 parts of a reactive diluent; 1 to 10 parts of a photoinitiator; and 1-8 parts of an antioxidant. According to the optical adhesive disclosed by the invention, the compound which has a novel structure and is shown in the formula (I) is designed and synthesized as the ultraviolet absorbent, so that the transmittance of the optical adhesive to ultraviolet rays can be reduced, and the problem that an optical device sensitive to the ultraviolet rays is easy to age is solved. In addition, the optical adhesive provided by the invention has high UV peel strength. .

The invention relates to the technical field of illumination control, and particularly discloses an intelligent illumination control method and system in combination with exhibit characteristics, and the method comprises the steps: determining the ultraviolet sensitivity level and illumination limiting conditions of an exhibit based on the material of the exhibit; determining a lighting atmosphere parameter range of the exhibit based on the historical background of the exhibit; generating a brightness distribution scheme of the LED matrix based on the three-dimensional digital model of the exhibit and the core display area, and generating a color temperature distribution scheme of the LED matrix based on the color space database of the exhibit and a color temperature complementation strategy; generating a basic static illumination strategy of the exhibit based on the ultraviolet sensitivity grade, the illumination limiting condition and the illumination atmosphere parameter range of the exhibit, and the brightness distribution scheme and the color temperature distribution scheme of the LED matrix, and generating a scenarized dynamic linkage illumination strategy of the exhibit in combination with the real-time people flow dynamic information and the scene tense near the exhibit; and intelligent illumination control is carried out based on a scenarized dynamic linkage illumination strategy, so that the display effect of the exhibit is optimized.

This process allows one to create bar code and dot code labels that are sensitive to infrared, visible, and ultraviolet light with out the use of ink. This is accomplished by cutting out or otherwise removing select areas of media to create shapes identical to the outlines of data elements that would be created by infrared, ultraviolet, and visible ink printing systems. This includes but is not limited to the shape of bars in bar coding, the dots in dot coding, lettering, numbering, and images. The method of cutting out the shapes could be manual or with special automated tools, equipment, and machinery. This process offers distinct advantages that qualify it as an improvement over ink printing. It can be done more cheaply, has a stability that is more dependant on the media than the ink, can not wash off, and there are no problems involving insufficient ink and poor print quality.

The utility model relates to a composite wear-resistant elastic fabric applied to the field of fabric parts, which is used for waistcoat clothes and comprises composite wear-resistant elastic fabric cover layers, outer reflective coatings are fixedly connected to the ends, far away from each other, of the two composite wear-resistant elastic fabric cover layers, and wear-resistant coatings are fixedly connected to the inner ends of the outer reflective coatings. The composite wear-resistant elastic cloth cover layers are arranged on the front side and the rear side of the waistcoat, the outer reflective coating is arranged on the front side and the rear side of the waistcoat, the waterproof coating is fixedly connected to the end, away from the outer reflective coating, of the wear-resistant coating, and the inner warning coating is fixedly connected to the end, away from the waterproof coating, of the outer reflective coating. The outer reflective layer covers the photosensitive coating inner ball of the inner warning layer when the outer reflective layer is worn and is not worn, the photosensitive coating inner ball is sensitive to ultraviolet rays, and the photosensitive coating inner ball is exposed to sunlight and changes color after being worn, so that a user is reminded that the outer reflective layer is worn so as to repair the fabric in time, and the service life of the fabric is prolonged.

The process flow of graphene patterning for a scalable fabrication of graphene devices is described in which a graphene layer avoids direct contact with the photoresist and its residuals during all fabrication steps. The proposed method utilizes the specific properties of UV-sensitive photoresists, that can also demonstrate DUV-sensitivity, and DUV-sensitive properties of PMMA, based on the fact that chemical processes occurring in the resist films under exposure to suitable wavelengths result in an increased solubility in the developer, whereby a structured mask of the resists can be produced.

A monitoring terminal of a laboratory ultrasonic biological treatment device is composed of a shielding shell, a temperature measuring part, a sound transmission tube, a connecting hoop, a light transmitting tube, a light projection part, a light measuring part, a sound measuring part, a lower matching hoop, an upper matching Coupling and short joints. The temperature measuring part is attached to the left side of the sound transmission tube with its temperature sensing surface. The wall of the sound transmission tube is made of 304 type stainless steel sound guide material sheet. The wall of the light-transmitting tube is made of high-temperature glass transparent material, the upper port is connected with the sound transmission tube through the connecting hoop, and the lower port is connected with the rear conduit of the monitoring terminal through the lower coupling hoop. The light-projecting part is attached to the left side of the light-transmitting tube with its LED light-projecting end surface. The photometric part is a group of 200-400nM ultraviolet sensitive device circuit components, and its light-receiving end surface is attached to the right side of the light-transmitting tube. The sound measuring part is attached to the right side of the sound transmission tube with its sound receiving surface.

The invention discloses an intelligent photochromic glass system based on ultraviolet response and a car window, and belongs to the technical field of car glass. The system aims at solving the problems that the light transmittance of traditional automobile glass cannot be dynamically adjusted, and existing photochromic glass is prone to false triggering, high in energy consumption, poor in stability, lack of a fault safety mechanism and the like. The system comprises an ultraviolet sensitive layer, a temperature compensation layer, an optical adjustment layer and a fault safety module, the ultraviolet sensitive layer is made of an AgCl-TiO2-ZnO nano composite material with a specific ratio, and the light transmittance can be dynamically adjusted according to the wavelength of ultraviolet rays; the temperature compensation layer can start a high-reflection mode when the temperature difference inside and outside the automobile is large; the optical adjustment layer realizes rapid light transmission recovery of the tunnel scene; and the fault safety module guarantees view safety when the system fails. The system is high in response speed, stable in performance, low in energy consumption and suitable for environment self-adaptive adjustment of front and rear windshields, side windows and skylights of an automobile.

To provide a method for appropriately setting the intensity of ultraviolet rays at a flow rate at which optimum power efficiency is obtained in order to prevent infection to individuals in other water tanks even if an individual in one of a plurality of water tanks develops an infectious disease in a water circulation system.SOLUTION: The management device 100 is configured to, based on a sterilization target value including a safe maximum viable cell count and an allowable immersion time, bacteria information including a viable cell count increase amount indicating the number of bacteria released into water per unit time by the aquatic organisms having developed infectious diseases and ultraviolet light sensitivity information of bacteria to be sterilized, and rearing condition information including a plurality of water tank 20A, a water amount of 20B, the number of water tanks, and a lower limit flow amount of a pump, A specifying unit configured to set an ultraviolet target intensity of the ultraviolet light source so that the number of viable bacteria in at least one of the plurality of water tanks falls below the safe maximum number of viable bacteria within the allowable immersion time when the set flow rate of the pump is set to a target flow rate based on a lower limit flow rate.SELECTED DRAWING: Figure 1

The invention provides an azo-containing polymer as well as a preparation method and application thereof. The azo-containing polymer is prepared from the following raw materials: aryl azo primary amine, bifunctional epoxy resin, a monofunctional epoxy compound and an organic solvent. The azo-containing polymer provided by the invention has obvious ultraviolet sensitivity and wide ultraviolet absorptivity, can effectively generate photochemical decomposition under ultraviolet laser with low laser energy density, generates small molecular fragments, realizes clean ablation, does not pollute a system, is convenient for cleaning and recycling of a matrix, and has a wide application prospect. Good strong acid and strong alkali resistance is achieved; meanwhile, the synthetic process of the azo-containing polymer is safe, the stability is very good, and the azo-containing polymer has a long-acting shelf life.

The invention relates to an ultraviolet damage sensitive cell model as well as a preparation method and application thereof. The cell model is a cell with UVSSA gene function deletion. According to the invention, UVSSA genes in human epidermal Hacat cells are knocked out by utilizing a CRISPR-Cas9 gene editing technology, and a cell model sensitive to medium-wave-band ultraviolet (UVB) is constructed and is successfully used for screening active raw materials with a light protection effect.

The invention relates to a synthesis process of mixed double-chain quaternary ammonium salt complex iodine for aquaculture. According to the technical scheme, the method comprises the following steps: 1) adding octyl decyl methyl tertiary amine, dodecyl tetradecyl methyl tertiary amine and hexadecyl octadecyl methyl tertiary amine into a reaction kettle, and uniformly stirring; 2) continuously adding benzyl chloride; 3) pumping methanol into the reaction kettle; (4) starting to heat and carrying out constant-temperature reaction; (5) stopping heating after the constant-temperature reaction is finished, cooling to room temperature, adding phosphoric acid, and uniformly stirring; (6) continuing to add fatty alcohol-polyoxyethylene ether, elemental iodine and purified water; and 7) raising the temperature, and keeping the temperature between 35 DEG C and 45 DEG C to obtain the product. The method has the beneficial effects that the defects that povidone iodine is sensitive to ultraviolet rays and the loss is large under the illumination condition are overcome; a branched chain structure of quaternary ammonium salt molecules is increased, so that the product is endowed with a stronger slime stripping function; the characteristics of low toxicity, high sterilization efficiency and wide sterilization spectrum of iodine disinfection products for aquatic products are continued.

A fastener configured to be attached to a panel and to support an item. The fastener has a body constructed from a first material and with the body having an opening that extends into the body at a first end. A flange constructed from a second material is connected to the body and sized to extend laterally outward beyond the body. The first material has a higher melting point than the second material. The first material has a lower transmissibility of UV light than the second material.

Facial recognition system that compares narrow band ultraviolet-absorbing skin chromophores to identify a subject. Ultraviolet images show much greater facial detail than visible light images, so matching of ultraviolet images may be much more accurate. Embodiments of the system may have a camera that is sensitive to ultraviolet, and a special lens and filter that pass the relevant ultraviolet wavelengths. A database of known persons may contain reference ultraviolet facial images tagged with each person's identity. Reference images and subject images may be processed to locate the face, identify features (such as chromophores), compare and match feature descriptors, and calculate correlation scores between the subject image and each reference image. If the subject is moving, the subject's face may be tracked, a 3D model of the subject's face may be developed from multiple images, and this model may be rotated so that the orientation matches that of the reference images.

This optical sensor device includes a first light receiving portion having sensitivity to ultraviolet light, a first sealing portion covering the first light receiving portion, a second light receiving portion having sensitivity to ultraviolet light, and a second sealing portion which covers the second light receiving portion. At least one of the first sealing portion and the second sealing portion is configured to transmit at least part of a ultraviolet light wavelength band, the first sealing portion is formed from one or more resin layers and has transmission spectral characteristics that a first wavelength is set as a lower limit value of a transmission wavelength band, and the second sealing portion is formed from one or more resin layers and has transmission spectral characteristics that a second wavelength different from the first wavelength is set as a lower limit value of the transmission wavelength band.

The invention discloses black polyimide with high ultraviolet light sensitivity as well as a preparation method and application thereof, belongs to the technical field of functional polymer materials, and solves the problem that polyimide in the prior art cannot have excellent masking capability and ultraviolet light sensitivity at the same time. The structural formula of the polyimide is as follows: # imgabs0 #, and a structural unit A is polyaryl ether or polyaryl ketone; the structural unit B is tetraphenyl cyclopentadiene biphenyl; the structural unit C is diphenylamine or biphenol; and n is a positive integer from 1 to 50. According to the invention, reasonable molecular structure design is carried out on polyimide to prepare the intrinsic high-ultraviolet photosensitive black polyimide, so that the intrinsic high-ultraviolet photosensitive black polyimide is subjected to photoisomerization after exposure.