157 results about "Fluorescent light" patented technology

The invention provides an illumination system and projection equipment. The lighting system comprises a light source module, a wavelength conversion device, a first light guide assembly, a second light guide assembly and a micro-lens array module. The light source module is used for providing a plurality of green and blue laser beams. The wavelength conversion device is used for generating fluorescent light beams. The first light guiding assembly and the second light guiding assembly are used for guiding a fluorescent light beam and a green laser light beam respectively. The fluorescent light beams form fluorescent light spots on the first area of the first side face of the micro-lens array module. The plurality of green laser beams form a plurality of green light spots on a second area of the first side surface of the micro-lens array module. The first region is adjacent to the second region. The illumination system and the projection equipment provided by the invention avoid energy loss and have good light uniformity.

The utility model relates to an integrated automatic imaging and identification analysis device for two insects and plankton in water. The integrated automatic imaging and identification analysis device comprises a camera, a fluorescent light source, an electric objective table, a driving mechanism, an objective lens, an electric objective table and a backlight source. The objective lens comprises a two-insect objective lens and a plankton objective lens (switchable), or only the two-insect objective lens is used for switching detection. The two-worm objective lens is 40 times, the floating objective lens is 20 times, or the camera is integrated with the 20 times objective lens. The driving mechanism is diversified and comprises a motor, a guide rail, a synchronous belt, a proximity sensor and a synchronous belt pressing block. The device solves the problems that traditional detection is low in efficiency, poor in accuracy and insufficient in equipment adaptability, automatic imaging and recognition analysis of the two insects and the plankton are achieved, the water resource pollution source monitoring efficiency and quality are improved, and technical support is provided for water ecological environment protection and treatment.

The application belongs to the field of explosive detection, and discloses a polyimide loaded triaminophthalocyanine probe, a preparation method thereof and application thereof in detecting nitroaromatic explosives. The probe has the following general structure formula. The probe is prepared by cross-linking copolymerization of 5,10,15-tri(4-aminophenyl)-20-phenyl porphyrin, aromatic tetracid dianhydride and aromatic organic diamine. The polyimide high-molecular cross-linked branch loaded triaminophthalocyanine compound with fluorescent light emitting performance is prepared for the first time. The probe is applied to detecting various nitroaromatic explosives by quenching fluorescence response, and the detection method is simple, and has good application prospect in the field of public security.

Provided is a light-emitting device with high reliability. The light-emitting device includes a first electrode formed on an insulating surface, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode, one of the first electrode and the second electrode is an anode, and the other is a cathode, the EL layer includes a light-emitting layer, a first layer, and a second layer, the first layer and the second layer are between the light-emitting layer and the cathode, the first layer is between the first electrode and the second layer, the second layer is between the first layer and the second electrode, the light-emitting layer contains a first light-emitting substance and a second light-emitting substance, the first light-emitting substance is a substance capable of converting triplet excitation energy into light emission, the second light-emitting substance is a fluorescent light-emitting substance, the light emission peak wavelength of the first light-emitting substance is shorter than the light emission peak wavelength of the second light-emitting substance, and the GSP_Slope of the second layer is greater than the GSP_Slope of the first layer.

Disclosed herein are viewing systems configured for viewing an image of a biological object illuminated with light and a viewing device (e.g., loupes, glasses, etc.) and methods for operation thereof. The viewing device comprises a plurality of viewing modes: a white light mode, a fluorescent light mode, and an overlay mode, and a shutter that opens and closes in accordance with the viewing mode. An overlay image is an image of the biological object when the biological object is illuminated with both white light and fluorescent light, causing the overlay image to be an overlay of the white light image and the fluorescent light image. The disclosed systems and methods allow a user (e.g., a surgeon, medical staff, etc.) to preserve the ergonomics offered by eyewear while providing fluorescent viewing capabilities, particularly with visible fluorescent dyes.

To provide a phosphor wheel unit and a projection type image display device having improved cooling efficiency.SOLUTION: The phosphor wheel unit includes a phosphor wheel configured to emit fluorescent light from incident light, a motor configured to rotationally drive the phosphor wheel, a first heat exchanger having an airflow inlet surface on which a plurality of fins are arranged and into which a part or all of an airflow generated by rotation of the phosphor wheel flows, and a restriction member configured to restrict a direction of the airflow generated by the rotation of the phosphor wheel. On a plane perpendicular to the direction in which the base 107f of the phosphor wheel extends, the angle between the direction of the airflow restricted by the restriction member and the direction perpendicular to the axis of rotation of the phosphor wheel is greater than or equal to 0 degrees but smaller than or equal to 45 degrees. The airflow inlet surface is disposed on the extension of the direction of the airflow restricted by the restriction member, and the gas cooled by the first heat exchanger returns to the phosphor wheel.SELECTED DRAWING: Figure 7

The application provides a visual micro-nano optical waveguide refractive index sensing system, and a hardware part comprises a nano fiber taper coupled fluorescent doped polymer microwire; the nano fiber taper coupled fluorescent doped polymer microwire is coupled by a nano fiber taper and a fluorescent doped polymer microwaveguide; the nano fiber taper is obtained by adopting a flame tapering method from a standard single-mode optical fiber; the fluorescent doped polymer microwaveguide is directly prepared by wire drawing from a mixed solution doped with a fluorescent dye; the nano fiber taper and the fluorescent doped polymer microwaveguide placed in a channel of an optical substrate jointly form an evanescent wave coupling structure; a signal analysis part enhances, edge extracts, smoothes and peak extracts a fluorescent image of the microwire through an image analysis algorithm, obtains an oscillation period of a fluorescent light path in the microwire under a current environment, establishes a response relationship between the light path period and the environmental refractive index, realizes direct real-time obtaining of environmental change conditions from optical images of a sensing unit shot by a camera, and thus obtains the change of the refractive index.

In light-emitting devices using fluorescence emission and phosphorescence emission, a multi-color light-emitting device that is advantageous for practical application. The objective is to provide this. [Solution] A first light-emitting layer comprising a host material and a fluorescent light-emitting substance, and two layers forming an excitation complex. A second light-emitting layer containing a type of organic compound and a material capable of converting triplet excitation energy into light emission. The present invention provides a light-emitting element having a stacked structure. The light emitted from the first light-emitting layer is then emitted from the second layer. Light-emitting elements whose emission spectrum peaks are located at shorter wavelengths than the emission from the layer are more useful. be.

The invention provides a seed sorting machine, and belongs to the technical field of seed sorting devices. The device comprises a feeding mechanism, a conveying mechanism, a sorting mechanism, a material distributing mechanism and a screening mechanism. The sorting mechanism comprises a light source for providing light with a specific wavelength to irradiate the seeds; the quantum dot sensor is used for absorbing light reflected or refracted by the seeds and emitting fluorescent light; the photoelectric detector is used for receiving the fluorescence emitted by the quantum dot sensor and converting the fluorescence into an electric signal; and the signal processing unit is used for analyzing the electric signal and generating spectral data. High-precision seed sorting is achieved through the quantum dot spectrum sensing technology, the shelling efficiency and the seed integrity are improved in combination with the crushing mechanism, and full-process automatic operation from feeding to screening is completed. The production space and cost are saved through the function integration design, the diversified agricultural production requirements are met through high-precision sorting of the quantum dot spectrum sensor and efficient shelling of the crushing mechanism, and the overall operation efficiency is remarkably improved.

A system and method for diagnosing a patient's renal function, the method comprising delivering a first tracer agent, transmucosally applying a first excitation light to the first tracer agent at the first monitoring site, transmucosally receiving a first fluorescent light emitted from the first tracer agent at the first monitoring site, transforming the received first fluorescent light to produce a first fluorescence signal, processing the first fluorescence signal to determine a first decay rate, and processing the first decay rate of the first fluorescent light to determine a glomerular filtration rate of the patient.

The utility model belongs to the technical field of safety guardrails, and particularly relates to a bridge construction safety guardrail which comprises a first blocking net fixedly installed in a first metal frame, a character plate movably installed on the front face of the first blocking net, and a metal supporting plate fixedly installed at the bottom of the first metal frame. A bearing plate is fixedly mounted on the lower surface of the metal supporting plate, and a bearing frame is fixedly mounted at the bottom of the bearing plate. Fluorescent lamps are movably installed on the tops of the first metal frame and the second metal frame, illumination can be provided under the condition of poor illumination at night, two adjacent safety fences can be fixed by connecting plates on the outer side of the second metal frame through first connecting blocks, and the first connecting blocks can be taken out to be convenient to pass through. The fixing plate at the lower end of the supporting column can make the safety fence more stable, the bearing frame is installed at the bottom of the bearing plate, the first movable leg and the second movable leg connected in the bearing frame can be folded, and the occupied space can be conveniently reduced when the safety fence is not used.

The invention discloses a light source device and an optical system, the light source device comprises a first laser light source used for generating first laser and second laser, a light combination part, a fluorescent module and a light guide module, and the light combination part is used for guiding the first laser and the second laser to the fluorescent module. The fluorescent module comprises a collecting lens assembly and a color wheel which are sequentially arranged on light paths where the first laser and the second laser are located, and the color wheel comprises a first fluorescent ring and a second fluorescent ring which are concentrically arranged. And first fluorescent light generated by the first fluorescent ring and second fluorescent light generated by the second fluorescent ring are reflected by the color wheel and transmitted by the collecting lens assembly in sequence and then enter the light combining piece. The light guiding module is arranged between the first laser light source and the light combining piece and used for adjusting the optical axis of the laser incident to the light guiding module. Due to the fact that the color wheel is of the multi-ring-shaped structure with different colors, synchronization is not needed when the color wheel starts to rotate, and the starting speed of the light source device is increased.

The invention discloses a fluorescent algae analysis system and method, electronic equipment and a storage medium. The fluorescent algae analysis system comprises a light source driving circuit, a turbidity light source, a plurality of fluorescent light sources, a reference detector, a fluorescence detector, a turbidity detector and a data calculation module, the light source driving circuit is respectively connected with the turbidity light source and each fluorescent light source and is used for driving the turbidity light source and each fluorescent light source to work; the reference detector is used for detecting light intensity data of the turbidity light source or setting the fluorescence light source; the turbidity detector is used for detecting the turbidity of a water body to be detected; the fluorescence detector is used for detecting data of excited fluorescence with different intensities; the data calculation module is used for calculating the turbidity data and the fluorescence data to obtain algae analysis data. According to the fluorescent algae analysis system and method, the electronic equipment and the storage medium provided by the invention, the data stability and accuracy can be improved, and the influence of turbidity on a measurement result is eliminated.

Coating systems, composite articles produced from the coating systems, and methods for producing the composite articles are presented. In one embodiment, a coating system comprises a water-based substrate composition comprising an acrylic latex resin and a two-component water-based clearcoat composition. The two-component water-based clearcoat composition comprises a clearcoat binder component and a clearcoat crosslinker component. The clearcoat binder component comprises a water-dilutable, hydroxyl-functional (meth)acrylate copolymer. The clearcoat crosslinker component comprises a polyisocyanate compound with side-ended -NCO groups.A hardened film of the water-based clearcoat composition with a film thickness of 67.5 µm, applied over a hardened film of the water-based undercoat composition with a film thickness of 20 µm on a substrate, shows a popping density of less than about 3 pops per square centimeter, as measured by visual observation with the naked eye at a distance of 30 cm under a fluorescent light source.

The safety protection anti-collision strip for the office comprises an anti-collision strip body, edge strips are fixedly connected to the bottom ends of the outer walls of the two sides of the anti-collision strip body, rubber sheets are fixedly connected to the two ends of the top of the anti-collision strip body, and a plurality of sets of first rubber pipes are installed between the anti-collision strip body and the rubber sheets. Rubber outer shells penetrate through the two ends of the anti-collision strip body correspondingly, and rubber inner shells are installed in the rubber outer shells correspondingly. The inner space of the rubber inner shell is divided into four groups by the cross, each group of space can be used for insertion of network cables or electric wires, netting and shielding of the arranged network cables or electric wires are facilitated, meanwhile, the use efficiency of the whole anti-collision strip is improved, the fluorescent strip is arranged, fluorescence can be emitted under the condition that the surrounding environment is dark, and the anti-collision effect is good. According to the anti-collision strip provided by the invention, the edge strip is arranged on the anti-collision strip body and plays a role in reminding a user close to the anti-collision strip body, and the edge strip can be fixed at a specified position through the sticking piece, so that the stability of the whole anti-collision strip body is improved.

An apparatus includes a holographic optical element (HOE) and an optical sensor. The HOE is configured to have an interference pattern that functions as mirrors in an inverted server when illuminated by a light source. The HOE is placed on a bottom surface of the inverted server. The optical sensor is directed at the HOE and configured to detect a fluorescent light emitted from a liquid drop at a first wavelength when illuminated by the light source. The liquid drop lands on the HOE from a cooling liquid. The interference pattern is created by a laser beam operating to form a hologram at a second wavelength substantially close to the first wavelength.

The present disclosure provides a coating system, a composite article formed from the coating system, and a method of forming the composite article. In one embodiment, a coating system includes an aqueous underlayer composition comprising an acrylic latex resin and a two-part aqueous varnish composition. The two-part aqueous varnish composition comprises a varnish binder part and a varnish crosslinker part. The varnish binder portion includes a water-dilutable hydroxyl-functional (meth) acrylate copolymer. The varnish crosslinker portion includes a polyisocyanate compound having a pendant-NCO group. A cured film of an aqueous varnish composition having a film thickness of 67.5 [mu] m overlying a cured film of an aqueous underlayer composition having a film thickness of 20 [mu] m disposed on a substrate exhibits a bubble density of less than about 3 bubbles per square centimeter, as measured by visual observation with the naked eye at a distance of 30 cm under a fluorescent light source.

A diamond spin sensor system includes: a sensor section including a diamond having a color center with electron spin; a control power supply unit that generates excitation light to be irradiated to the sensor unit; and a joint part connecting the sensor part and the control power supply part, the joint part transmitting the excitation light to the sensor part and irradiating the diamond, and the joint part transmitting the fluorescence emitted from the diamond to the control power supply part.

The invention discloses a high-efficiency light collection system for a resonance laser-induced fluorescence technology, and relates to the technical field of optics, and the system sequentially comprises a concave reflector, a cylindrical fluorescent light source, a first lens, a second lens, a narrow-band filter, a third lens and a fluorescence signal detector along a light path direction. A fluorescent signal on one side of the cylindrical fluorescent light source is reflected by the concave reflecting mirror, and then is received by the fluorescent signal detector after sequentially passing through the first lens, the second lens, the narrow-band optical filter and the third lens; a fluorescence signal on the other side is transmitted through the first lens and the second lens, and is received by the fluorescence signal detector after passing through the narrow-band optical filter and the third lens in sequence. According to the invention, the lens group with a large numerical aperture is used for collecting fluorescence, and the narrow-band optical filter is added for filtering scattered light and stray light, so that the microminiaturization design of the resonance laser-induced fluorescence high-efficiency light collection system is realized. And meanwhile, the concave reflecting mirror is added opposite to the detector, so that the collection efficiency of the fluorescence is improved.

The present invention relates to a fluorescence observation system, to a method for carrying out a fluorescence observation and to a filter set that can be used for this purpose for simultaneously observing fluorescent light of protoporphyrin IX in an object and non-fluorescent regions of the object in an almost true-colour representation. The filter set comprises an illumination filter and an observation filter. A transmittance of the illumination filter has an average value of at least 90% from 405 nm to 452 nm, is at most 0.01% in at least 95% of a wavelength range extending from 466 nm to 524 nm, has an average value of at least 0.028% and at most 0.044% from 535 nm to 595 nm, and is at most 0.003% in at least 95% of a wavelength range extending from 610 nm to 750 nm. A transmittance of the observation filter has an average value of at least 0.143% and at most 0.187% from 404 nm to 438 nm, is at most 0.01% in at least 95% of a wavelength range extending from 444 nm to 534 nm, and has an average value of at least 90% from 544 nm to 722 nm.

A simulation equipment for hot and humid marine environment and radiation intensity prediction method thereof, which can simultaneously load the working environment factors including voltage, current, temperature, humidity, salt spray, and UV radiation for the tested electrical equipment. The radiation intensity prediction method can predict the UV radiation intensity at the target position of the tested electrical equipment under the influence of different temperature and humidity and salt spray concentration on the attenuation of UV light radiation, so as to accurately obtain the UV radiation intensity qt at the target position of the tested electrical equipment during material corrosion and aging tests. Moreover, the UV radiation intensity qt at the target position of the tested electrical equipment can be adjusted to the target UV radiation intensity by correspondingly enhancing or weakening the luminous intensity of each UV fluorescent lamp tube.

The invention relates to a sensor unit (200) for measuring a magnetic field, comprising at least two sensor media (201, 202, 203) arranged at a fixed distance from each other, at least one excitation light source (220) for shining light (224) into the at least two sensor media (201, 202, 203), at least one microwave source (241, 242, 243) for generating an alternating magnetic field in the at least two sensor media (201, 202, 203), a device for generating a bias magnetic field (B0) having different magnetic field strengths at the locations of the at least two sensor media (201, 202, 203), an optical collecting device for combining fluorescent light (225) emitted from the at least two sensor media (201, 202, 203), and a photodetector (230) for detecting the combined Fluorescence light (225),at least one signal processing unit for determining a gradient of the magnetic field from the detected fluorescence light (225).,

The invention discloses an orange fluorescent silicon nanodot, a preparation method thereof and an application of the orange fluorescent silicon nanodot in mitochondrial imaging in living cells, the method comprises the following steps: S1, dissolving tetramethyl rhodamine methyl ester in ultrapure water, then adding N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, uniformly stirring, and carrying out hydrothermal reaction on the obtained mixture; and S2, cooling after the reaction is finished, purifying the product by using a chromatographic column, eluting by using an eluent, collecting the eluent, and drying to obtain the orange fluorescent silicon nanodot. The silicon nanodot provided by the invention has the advantages of good light stability, high quantum yield and the like, and can be successfully applied to positioning imaging of mitochondria in living cells; compared with common blue-green fluorescence, orange fluorescence has better tissue penetrating ability and background interference resistance; the O-SiNDs prepared by the invention also has the property similar to that of lipophilic cations, and can realize high-specificity targeted marking on mitochondria of living cells.

The invention relates to a DMD true gray projection method and device based on fluorescent material integral transformation, and the method comprises the steps: a light source generates an excitation light beam, and the excitation light beam is projected to the surface of a DMD after being shaped; in a gray scale coding period, the DMD controls the switching time proportion of the micromirror unit according to the pixel gray scale value of an input image so as to modulate the input image into a pulse light beam carrying pixel gray scale information; converting the modulated pulse light beam into a continuously distributed true gray fluorescent light beam by using the light intensity integral effect of a fluorescent material; and then, the light splitting system is used for separating the generated real-gray-scale fluorescence light beam from the residual excitation light beam, the projection lens is used for collecting the real-gray-scale fluorescence light beam, and finally, a projection image with continuous gray scales is output. Compared with the prior art, by introducing the fluorescent film of which the fluorescence response time is matched with the DMD grayscale modulation period, the real grayscale display of the physical level is realized by utilizing the light intensity integral characteristic of the fluorescent film.

The microscopic observation device comprises a box body, a light source module and an imaging module located on a substrate in the box body, an objective table is arranged on the box body, an observation window is arranged on the objective table, the light source module is located above the observation window, and the imaging module is located above the observation window. The imaging module comprises a first prism, an objective lens module, a second prism, a fluorescence module, a third prism, a barrel lens module, a fourth prism and a camera module which are sequentially arranged from the object space to the image space in the light propagation direction, the first prism is located below the observation window, and the first prism, the second prism, the third prism and the fourth prism are all rectangular prisms; the fluorescent module can be switched on a light path between the second prism and the third prism. The microscopic observation device provided by the utility model is compact in structure and extremely small in overall size; and the observation effect can be achieved by switching two different imaging modes of bright field white light and fluorescent light according to different working requirements.

The invention relates to an apparatus for measuring intracorporeally generated magnetic fields, comprising: a catheter, wherein an optical waveguide device is arranged within the catheter, a sensor unit for measuring magnetic fields, wherein the sensor unit is a nitrogen-vacancy centre magnetometer which has, as a sensor medium, one or more diamond crystals having a plurality of nitrogen-vacancy centres, wherein the one or more diamond crystals are arranged within the optical waveguide device, wherein the sensor unit comprises a magnetic field generating device for generating a magnetic field in the region of the sensor medium, wherein the sensor unit has an excitation light source for radiating excitation light into the optical waveguide device in order to excite the sensor medium, wherein the sensor unit comprises a microwave source for generating microwaves in order to excite the sensor medium with microwaves, and wherein the sensor unit comprises a photodetector for detecting resonance-dependent fluorescent light from the sensor medium, and an evaluation unit which is configured to determine, based on the detected fluorescent light, a magnetic field at the respective location of the one or more diamond crystals. The invention relates to a method for measuring intercorporeally generated magnetic fields, a computer program and a machine-readable storage medium.

The application provides a red fluorescent carbon quantum dot and a preparation method and application thereof. The preparation method comprises the following steps: providing an IR dye solution or an IR dye mixed solution formed by mixing the IR dye and an alkali; heating the IR dye solution or the IR dye mixed solution to obtain a product solution; and separating and purifying the product solution to obtain the red fluorescent carbon quantum dot. The preparation method is simple, economical and easy to operate, and the prepared red fluorescent carbon quantum dot has super-high fluorescent light emitting efficiency, and has good application prospects in the fields of biomedical fields such as biological cells and living body imaging, and high-performance optoelectronic device fields such as LED light emitting devices and solar cells.

The purpose of the present invention is to provide a method for simultaneously detecting a variety of target biomolecules in one implementation using temperature-responsive fluorescent particles. The problem is solved by providing a method for detecting or quantifying biomolecules contained in a biological sample, comprising the following steps (1)-(3): (1) a step in which magnetic particles to which a biomolecule recognition element for capturing is bound, the biological sample, and temperature-responsive fluorescent probe particles are brought into contact with a magnetic substrate; (2) heating the magnetic substrate; and (3) a step for measuring fluorescence emission.