34 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.

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 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. .

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.

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 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.

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.

A monitoring terminal of a laboratory ultrasonic biological treatment device consists of a shielding shell, a temperature measuring part, a sound transmission tube, a connecting hoop, a light transmitting tube, a light projecting part, a light measuring part, a sound measuring part, a lower coupling, an upper coupling and a short section, and the temperature sensing surface of the temperature measuring part is attached to the left surface of the sound transmission tube. The tube wall of the sound transmission tube is made of a 304 type stainless steel sound guide material thin plate, the upper port of the sound transmission tube is connected and communicated with a front guide pipe of a monitoring terminal through the upper coupling, and the lower port is connected and communicated with the light-transmitting tube through a connecting hoop. The tube wall of the light transmitting tube is made of a high-temperature glass full-transparent material, the upper port of the light transmitting tube is connected and communicated with the sound transmission tube through a connecting hoop, and the lower port is connected and communicated with a rear conduit of the monitoring terminal through the lower coupling. The LED light projection end face of the light projecting part is attached to the left face of the light transmitting tube. The light measuring part is a set of 200-400 nM ultraviolet sensitive device circuit components, and the light receiving end faces of the light measuring part are attached to the right face of the light transmitting tube. And the sound receiving surface of the sound measuring part is attached to the right surface of the sound transmission tube.

The present invention is an article of manufacture for use in alerting a person of exposure to an excessive amount of ultraviolet radiation. In one embodiment, the article of manufacture comprises a first strip comprising a backing member and first and second patches. Each of the first and second patches comprise an ultraviolet sensitive material releasably disposed upon the backing member. Each of the first and second patches comprise first and second outside edges and an inside edge. The first and second patches are nested and adjoined along said inside edges of the first and second patches, respectively. The ultraviolet sensitive material is adapted to change from a first color to a second color when exposed to an excessive amount of ultraviolet radiation. In operation, a person may remove the first and second patches from the backing member as desired and apply the patch to an area of exposed skin. The person is alerted of exposure to an excessive amount of ultraviolet radiation when the UV sensitive coating changing from the first color to the second color.

A deep-ultraviolet microscopy system includes a light source for outputting a light beam for illuminating a biological sample, the light beam being inclusive of ultraviolet wavelengths; a reception space for reception of a biological sample for illumination by the light beam; an ultraviolet microscope objective for collecting and relaying light that interacts with the biological sample to an image capture device; and an ultraviolet sensitive image capture device for capturing images of the biological sample, with the microscopy system configured to capture multiple images of the biological sample at one or more ultraviolet wavelengths. A method of processing ultraviolet images of biological samples includes receiving a plurality of multi-spectral ultraviolet images of a biological sample; normalizing and scaling the images; and assigning each image to a channel in the RGB color-space based on wavelength.

A programmable controller for controlling an ultraviolet (UV) sensor may adjust an excitation voltage provided to the UV sensor based at least in part on a programmable sensitivity offset in order toproduce an excitation voltage that results in a desired UV sensitivity for the UV sensor. The programmable sensitivity offset may be set for the UV sensor at the factory, set during commissioning of the UV sensor in the field, and / or automatically altered over time to help compensate for a degradation in sensitivity of the UV sensor.

This disclosure relates generally to glass products having a UV protective coating. The coating is a porous, nano-structured coating having pores sized within the range of UV radiation. The porous structure may scatter UV light, protecting laminated interlayers and interior space protected by the glass products. The UV protective coating may be used in glass laminates having UV-sensitive interlayers, including switchable films where UV exposure may be limited.

The invention discloses an EupsNPV-Gr strain, a biological control agent and application of the EupsNPV-Gr strain. The EupsNPV-Gr strain is preserved in China Center for Type Culture Collection on October 19, 2021, and the preservation number of the EupsNPV-Gr is CCTCC NO: V202176. The biological control agent based on the EupsNPV-Gr strain has a very good killing effect on the grassland caterpillars. It is found that the EupsNPV-Gr strain has a good killing effect on the grassland caterpillars. The invention also provides the novel biological control agent at the same time, thus, the technical problems of low insecticidal speed, insufficient insecticidal efficacy, sensitivity to ultraviolet rays and the like when the strain is independently used are solved, and powerful help is provided for biological prevention and control work of the grassland.

The invention relates to a separating film based on polyolefins or ethylene copolymers with a content of organic and optionally inorganic pigment and at least one UV stabilizer. The separating film has a transmission percentage between 5 and 20% in the range from 400 to 700 nm and a transmission percentage of <2% in the range from 300 to 500 nm. Such separating films have the advantage that marking regions applied onto membranes which can be found below the separating film remain detectable, and adhesives which can be found below the separating film are effectively protected from UV light and premature aging by the addition of inorganic and organic pigments and UV stabilizers. The invention further relates to composite structures of corresponding separating films and adhesives, to water-tight membranes with coatings made of adhesive and separating films, and to uses of corresponding membranes for sealing structures against water.