261 results about "Fluorescent light" patented technology

The invention relates to an irradiation module for use in a device (1) for irradiation with medical and cosmetic radiation, comprising a plurality of LEDs arranged on a carrier. The invention also relates to a device for irradiating a user (10) with medical and cosmetic radiation, comprising a plurality of irradiation modules (40) for irradiation with medical and cosmetic radiation, which modules are accommodated in a housing part (20; 30). The invention further relates to a method for irradiating a user (10) with medical and cosmetic radiation, comprising a plurality of irradiation modules (40) for irradiation with medical and cosmetic radiation, which modules are selected from the group comprising fluorescent tubes, LEDs, organic LEDs, and high-pressure lamps. In order to provide an irradiation module and a device and a method with which improved irradiation results can be achieved according to the invention, a first group of first LEDs, which emits radiation within the UVA spectrum, and a second group of second LEDs, which emits radiation within the UVB spectrum, are arranged on the carrier.

The invention relates to a magnetic field sensor (10), comprising: an excitation light source (6) for emitting excitation light (4), a measurement region (7) which has colour centres (3) in a crystal (1), preferably NV centres in a diamond, which emit fluorescent light (5) when excited with the excitation light (4), a detector (8) for detecting the fluorescent light (5) from the measurement region (7), a microwave emitter (11) for applying a microwave field (9) to the measurement region (7), a signal generator (14) which is designed to generate a microwave signal (15) for the microwave emitter (11) and has two frequency components (fsb-(t), fsb+,π(t)) phase-shifted in relation to one another by π, in order to simultaneously excite magnetic field resonances at two different resonant frequencies (f-, f+) in the crystal (1) in order to determine a magnetic field (B), and an evaluation device (12) which has a demodulator (13) for forming a demodulated magnetic resonance signal from the detected fluorescent light (5) of the measurement region (7), wherein the evaluation device (12) is designed to determine a detuning (∆B) of the resonant frequencies (f-, f+) due to a change in the magnetic field (B), and to generate a frequency shift (∆f) of the microwave signal (15) according to the magnetic-field-related detuning (∆B) of the resonant frequencies (f-, f+). The magnetic field sensor (10) is designed to determine, in a temperature calibration step, a temperature-related detuning (∆T) of the resonant frequencies (f-, f+) and to take same into account in the frequency shift (∆f) of the microwave signal (15) in order to determine the magnetic field (B). The invention further relates to an associated method for calibrating the temperature of a magnetic field sensor (10).

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.

According to the stimulated radiation wafer detection device provided by the invention, the excitation light beam generated by the excitation light source is collimated, dodging and shape-modulated by the first illumination lens group to form a uniform shaping light beam; a convergent light beam generated by converging the shaped light beam through the second illuminating lens group can form an emergent light beam after passing through the light beam separation element and the objective lens, the emergent light beam irradiates the surface of a wafer to excite and generate fluorescent light, the objective lens receives the fluorescent light and transmits the fluorescent light to the light beam separation element, and the fluorescent light is transmitted by the light beam separation element and transmitted to the camera; the camera captures fluorescence and carries out fluorescence imaging so as to realize wafer detection. The light source energy can be efficiently utilized by adopting the shaping light beam for illumination; meanwhile, one-time or multi-time convergence of converged light beams in an illumination light path can be avoided, heat energy is prevented from being generated in a concentrated mode, obvious heat influence caused by high-energy convergence is avoided, deformation of surrounding optical elements or structural elements due to heat influence is avoided, the illumination service life is prolonged, and the illumination effect is improved.

The present application relates to a light source device and a projection display device. In a light source device in which fluorescent light and a part of blue light emitted from a semiconductor laser are output, a light source device in which the device does not excessively increase in size is sought. The light source device includes: a laser light source that outputs light in a predetermined wavelength region; a first dichroic mirror and a second dichroic mirror that have a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and are disposed on an optical axis of the laser light source; a first condensing optical system; a fluorescent color wheel that has a fluorescent light region that emits fluorescent light and a reflection region; a fourth dichroic mirror that has a characteristic of reflecting fluorescent light; a third dichroic mirror that has a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and is disposed so that an optical axis of the reflected light in the predetermined wavelength region coincides with an optical axis of the fluorescent light reflected by the fourth dichroic mirror; a second condensing optical system; and a light color selection color wheel that has a color filter and a diffusion portion.

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.

In one general embodiment, a method includes, during performance of an additive manufacturing process that includes photocuring of a resin, monitoring light output generated by a fluorophore in the resin that exhibits aggregation-induced emission (AIE) behavior. An indication of an extent of photocuring is output based on the monitored light output. In another general embodiment, a resin for additive manufacturing includes molecules configured for photopolymerization and / or photocuring, the molecules being selected from the group consisting of monomers, oligomers, and polymers; a photoinitiator; and a fluorophore that exhibits aggregation-induced emission (AIE) behavior. The fluorophore is present in an amount of at least 0.00005 wt % relative to a total weight of the resin. In yet another general embodiment, a three-dimensional encrypted structure includes a fluorophore that exhibits aggregation-induced emission (AIE) behavior. The structure has information encoded therein via the fluorophore, the information being viewable by illuminating the fluorophore with fluorescent light.

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 invention discloses a bifocal reflection-type atomic fluorescence detection system for an atomic beam interferometer. The bifocal reflection-type atomic fluorescence detection system comprises a vacuum cavity, a reflector and a detector, the vacuum cavity is a sealed cavity; an atomic beam generated by an atomic furnace mounted in the vacuum cavity is propagated in the y-axis direction in the vacuum cavity; a window is formed in the cavity wall of the vacuum cavity in the x-axis direction, and detection light enters the vacuum cavity from the window and propagates in the x-axis direction; windows are formed in the opposite positions of the two sides of the vacuum cavity wall in the + / -z axis direction, and a reflecting mirror and a detector are correspondingly installed outside the windows respectively; the propagation directions of the atomic beam and the detection light are perpendicular to each other, and in an intersection area of the atomic beam and the detection light, atoms absorb the detection light to jump to a high energy level and then spontaneously radiate fluorescence, namely an atomic fluorescence light source; the atomic fluorescent light source emits isotropic fluorescent light to the periphery, a part of the light irradiates the reflector and is focused on the receiving end face of the detector after being reflected, and the detector detects a fluorescent signal, converts the fluorescent signal into an electric signal and reads the electric signal.

A method for measuring drug content indexes of a non-viral nucleic acid vector composition, comprising performing labeling by enabling a permeable nucleic acid dye to be in contact with a non-viral nucleic acid vector (for example, an mRNA-LNP). The drug content indexes are calculated by measuring, at a single-particle level, fluorescent light generated by free nucleic acids of a nucleic acid vector, and fluorescent light generated by externally adsorbed nucleic acids and internally entrapped nucleic acids of the non-viral nucleic acid vector. The drug content indexes include a drug loading capacity, entrapment efficiency and the like. The method optionally further comprises: treating a sample with a nuclease before or after performing labeling by using the permeable nucleic acid dye, and when performing treatment with the nuclease, measuring the fluorescence condition of the non-viral nucleic acid vector composition; or enabling the permeable nucleic acid dye to be in contact with the sample, and then measuring the fluorescence condition of the non-viral nucleic acid vector composition.

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.

The utility model discloses an electric linear push rod type dual-channel fluorescent light source switching mechanism, which belongs to the technical field of fluorescent microscopic imaging and comprises a support plate, a PCB (printed circuit board), a fluorescent light source module, a connecting piece, a spring, a linear push rod electromagnet, a light source mounting plate, a linear slide block, a linear guide rail and a limiting block. By means of the mode, in the switching process of the two fluorescent light sources, a closed-loop control mode is omitted, position feedback of a sensor is not needed, use of a motor is omitted, and use and assembly of a lead screw and a lead screw nut are omitted, the structural mode is simplified, the assembly difficulty and the structural cost are reduced, and the control mode is simple.

Provided is a thermally activated delayed fluorescent emission-type organic electroluminescent device (organic EL device) having a low driving voltage, high luminous efficiency, and a long lifetime. The organic EL device is a delayed fluorescent emission-type organic EL device including one or more light-emitting layers between an anode and a cathode opposite to each other, wherein at least one of the light-emitting layers contains a para-biphenylcarbazole compound-type host material represented by the general formula (1), and an indolocarbazole compound-type thermally activated delayed fluorescent light-emitting material including an indolocarbazole ring in a molecule thereof.

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.

This specification describes a dental imaging and / or curing system and methods of using it, optionally in combination with a fluorescent imaging aid applied to a tooth. In some examples, a system or kit described in this specification combines a fluorescent compound with an intra-oral device. The intra-oral device includes a light source to excite the fluorescent compound. The intra-oral device further includes a sensor to produce an image of fluorescent light emitted from the fluorescent compound. Optionally, the fluorescent compound can include positively charged nanoparticles including a fluorophore, for example fluorescein. Optionally, the intra-oral device can include a blue LED, a bandpass emission filter and a digital camera sensor. This specification also describes an intra-oral device and a method of producing an image of plaque, calculus or active carious lesions in the mouth of a person or other animal.

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.

The application discloses a device capable of simultaneously realizing clear imaging of different kinds of ions, wherein a first aspheric lens, a second aspheric lens and a first dichroic mirror are sequentially arranged, a second mechanical pinhole plate, a second narrowband filter, a fifth aspheric lens and a sixth aspheric lens are sequentially arranged on a reflection light path of the first dichroic mirror, a second folding mirror is adjusted, and fluorescent light is reflected to a second digital camera or is incident to a second photomultiplier tube; a first mechanical pinhole plate, a first narrowband filter, a third aspheric lens and a fourth aspheric lens are sequentially arranged on a transmission light path of the first dichroic mirror, a first folding mirror is adjusted, and fluorescent light is reflected to a first digital camera or is incident to a first photomultiplier tube. The application further discloses a method capable of simultaneously realizing clear imaging of different kinds of ions. The application is integrated on a light surface package board, only needs one vacuum window for imaging and one primary imaging system, is more integrated and simple, and saves research and development cost.

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 an elastomer impression material as well as a preparation method and application thereof, and relates to the technical field of impression materials. The elastomer impression material comprises a primary impression and a light body, wherein the primary impression and the light body respectively comprise a polysiloxane compound, hydrogen-containing silicone oil, a catalyst, a filler, a pigment and a fluorescent pigment. The marking efficiency of the light body in the indicating process is improved through cooperation of the pigment and the fluorescent pigment, the marking face is mainly used for marking a large continuous face, the light body is mainly used for marking lines such as gingival lines, pit fissures and palate, the color between the light body and the initial impression and the color tone and effect of fluorescent light are combined, and the marking efficiency of the light body in the indicating process is improved. The positions of gingiva, soft tissue, prepared teeth and the like of the teeth and the transition and boundary of the structure are clearly and accurately marked, the machine learning process is accelerated, and the tedious link of manual marking is omitted. The preparation method is simple, convenient and rapid, the oral cavity diagnosis and treatment efficiency and precision are improved, and a more efficient and more accurate solution is provided for application of artificial intelligence in the dental field.

The application discloses a light source system and a laser projection device, and belongs to the technical field of projection. The application provides a light source system, which comprises a shell, a fluorescent component, a laser and a lens assembly. The laser beam emitted by the laser can be shot to the lens assembly, the laser beam emitted by the laser can be focused on the fluorescent layer of the fluorescent wheel through the lens set in the lens assembly, so that the fluorescent layer can better emit fluorescent light under the excitation of the laser. After the lens assembly is assembled on the shell, if the operation personnel finds that the assembly precision between the lens assembly and the fluorescent component is low, the distance between the lens assembly and the fluorescent component can be adjusted by controlling the movement of the lens assembly in the mounting hole of the shell, so that the lens assembly can better focus the laser beam on the fluorescent layer of the fluorescent wheel, the excitation efficiency of the fluorescent layer in the fluorescent wheel to the laser is effectively improved, and the effect of the light beam output from the light source system to the optical system is better.

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.

The application relates to a phenanthrene-containing organic electroluminescent material and a preparation method, application and light-emitting device thereof. The phenanthrene-containing organic electroluminescent material provided by the application takes phenanthrenebenzofuran and anthracene as basic structural units, can be used as a host material of a blue fluorescent light-emitting layer, has a high glass transition temperature, high quantum efficiency, good electron transmission capacity, good film-forming property and stable property, shows high light-emitting efficiency and stability in a blue light-emitting device, and is an ideal blue fluorescent material.

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.