955 results about "Phosphor" patented technology

A phosphor plate includes a plate-like composite including a base material and a phosphor contained in the base material, in which the base material contains spinel, the phosphor includes a phosphor containing a Si element, and in an X-ray diffraction pattern of the phosphor plate using a Cu-Kα ray, in a case in which peak intensity corresponding to the spinel having a diffraction angle 2θ in a range of 36.0° or more and 37.4° or less is set to 1, total intensity of peaks having a diffraction angle 2θ in a range of 32.5° or more and 34.5° or less satisfies 0.5 or less.

A uranium-based phosphor selected from (i) phosphors having formula I or II:where the phosphor having formula I or II is doped with an activator ion including Pr3+, Sm3+, or mixtures thereof, where 0≤a≤1, 0≤b≤1, 0.75≤x≤1.25, 0.75≤y≤1.25, 0.75≤z≤1.25, 2.5≤p≤3.5, 1.75≤q≤2.25, and 3.5≤r≤4.5; (ii) a phosphor having formula I or II, where the phosphor having formula I or II is doped with an activator ion selected from Eu3+, Pr3+, Sm3+, and mixtures thereof; and a counter ion comprising one or more alkali metal ions; and (iii) phosphors having formula IIIwhere the phosphors having formula III are doped with an activator ion selected from: Eu3+, Pr3+, Sm3+, and mixtures thereof, where A is Li, Na, K, Rb, Cs, or a combination thereof.

A device includes a LED die having a peak emission at a blue or shorter wavelength, a LED die having a peak emission at a red, orange, yellow, green, or cyan wavelength, and a homogenous light conversion material positioned to receive light emitted from the LED dies. The light conversion material including: (i) a first phosphor compound having a peak emission at a green wavelength; (ii) a second phosphor compound having a peak emission at an orange wavelength; and (iii) a third phosphor compound having a peak emission at a red, orange, yellow, green, or cyan wavelength. The device is a packaged LED device and a relative concentration of the phosphor compounds and a relative luminosity of the LED dies are selected so the device emits white light satisfying a preference P1 and a fidelity F3 according to a TM-30 standard for color rendering.

A phosphor plate including: a complex containing an α-sialon phosphor and a sintered body containing spinel represented by a general formula M2xAl4-4xO6-4x (where M represents at least one of Mg, Mn, and Zn, and 0.2<x<0.6). In addition, there is provided a light emitting device including: a group III nitride semiconductor light emitting element; and the phosphor plate provided on one surface of the group III nitride semiconductor light emitting element. Further, there is provided a method for manufacturing the phosphor plate.

A cathode-ray tube ultraviolet light source includes a metal housing provided with a light-transmissive window, a heatsink disposed within the metal housing, a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink, and an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor, whereby light emitted from the second surface of the phosphor is directed through the light-transmissive window.

To provide a photodetector capable of protecting a semiconductor photodetector element from reflected electrons generated inside a vacuum enclosure.SOLUTION: A photodetector 1 includes a vacuum housing 2 having a window 12, a photocathode (first photoelectric conversion layer) 3 that emits electrons E in response to incidence of light L1, a phosphor layer (second photoelectric conversion layer) 4 that generates light L2 in response to incidence of the electrons E emitted from the photocathode 3, and a semiconductor photodetector element 5 that is disposed on the opposite side of the photocathode 3 with the phosphor layer 4 in between and detects the light L2 generated in the phosphor layer 4. The semiconductor photodetector element 5 is disposed at a distance from the phosphor layer 4.SELECTED DRAWING: Figure 1

The invention discloses a system and a method for analyzing neurotoxicity of cyanobacteria toxin to aquatic organisms, the system comprises a bottom plate, and also comprises an electric guide rail mechanism arranged on the bottom plate, and a bearing container mechanism arranged on a slide block of the electric guide rail mechanism; the first liquid feeding mechanism and the second liquid feeding mechanism are both arranged on the bottom plate; and the full-automatic fluorescent microscope is arranged on the bottom plate and located on the downstream of the second liquid feeding mechanism, an image acquisition module is arranged on an eyepiece of the full-automatic fluorescent microscope, and the image acquisition module is in communication connection with an analysis module. CYN solutions with different concentrations are injected into the placement groove through the first liquid feeding mechanism, a fixed solution is injected into the placement groove through the second liquid feeding mechanism, then the result of the influence of the CYN solutions with different concentrations on aquatic organisms is obtained through analysis of the full-automatic phosphor microscope, the image acquisition module and the analysis module, use is convenient, and the detection accuracy is high. And the labor intensity of workers is reduced.

To provide an indwelling clip that allows easy visual recognition of light emission of a fluorescent body from the outside of a luminal organ and that enables excellent mounting stability to the interior wall of the luminal organ.SOLUTION: An indwelling clip 1 has: a pair of arm plate parts 22 that are made of metal plates and opened elastically into a substantial V-shape; and claw parts 23 that are formed at the respective front ends of the arm plate parts 22. The arm plate parts are each provided, at least on an outer surface, with a fluorescent body that includes a fluorescent pigment emitting red or near infrared light by application of excitation light, the fluorescent body being an extrusion molding or an injection molding of a polymeric material composition containing the fluorescent pigment.SELECTED DRAWING: Figure 1

A vehicle lighting equipment that irradiates light around a vehicle includes: a first light source, a first scanning mirror, and a first lens disposed on an upper side relative to a second light source, a second scanning mirror, and a second lens, in a vertical direction of the vehicle, and a phosphor plate including a first region on an upper side and a second region on a lower side in the vertical direction, where a first laser light passing through the first scanning mirror and the first lens is irradiated onto the second region of the phosphor plate, and a second laser light passing through the second scanning mirror and the second lens is irradiated onto the first region of the phosphor plate, and where a light generated from the phosphor plate is projected by a projection lens.

To provide a light-emitting device that emits amber-colored light and has good temperature characteristics. The light-emitting device includes a light-emitting element having a light emission peak wavelength in a range from 380 nm to 470 nm, and a wavelength conversion member including phosphors that absorb at least a part of light from the light-emitting element and emit light. The phosphors include a first phosphor having a light emission peak wavelength in a range from 535 nm to 560 nm, having a half-value width in a range from 100 nm to 120 nm, and containing a nitride containing La, Ce, and Si, and a second phosphor having a light emission peak wavelength in a range from 605 nm to less than 620 nm, having a half-value width in a range from 70 nm to 80 nm, and containing a nitride containing at least one of Ca or Sr, and Eu, Si and Al. The light-emitting device emits light within a region defined by connecting (0.545, 0.425), (0.560, 0.440), (0.609, 0.390), and (0.597, 0.390) in an xy chromaticity coordinate system of a CIE1931 chromaticity diagram.

To provide a light-emitting device having a high luminance region and a low luminance region into a light-emitting surface.SOLUTION: A light-emitting device includes a plate-like translucent member having a light-emitting element, a lower surface which is disposed on the light-emitting element and light emitted from the light-emitting element enters, and an upper surface on the side opposite to the lower surface, where the upper surface of the translucent member is a light-emitting surface. The translucent member includes: a first translucent part that contains a first sinter body containing a phosphor particle; and a second translucent part that contains a second sinter body containing a light diffusion particle. A relative density of the second sinter body is 70% or more and 95% or less. The light-emitting surface includes: (i) a first light-emitting region where the light is emitted via the first translucent part; and (ii) a second light-emitting region where the light is emitted via the second translucent part, and which has luminance lower than that of the first light-emitting region.SELECTED DRAWING: Figure 3

Method for producing a conversion element for an optoelectronic component, comprising the following steps: A) Producing a first layer: A1) Providing a polysiloxane precursor material that is liquid, A2) Mixing a phosphor with the polysiloxane precursor material, wherein the phosphor is suitable for converting radiation, A3) Curing the arrangement produced under step A2) to produce a first layer with a phosphor mixed into a cured polysiloxane material comprising a three-dimensional crosslinking network mainly based on T units, wherein the ratio of T units to all units is greater than 80%, B) Producing a phosphor-free second layer: B1) Providing the polysiloxane precursor material, which is liquid, B2) Mixing a filler with the polysiloxane precursor material, wherein the filler is in a hardened and powdered form, and wherein the filler has a refractive index equal to the refractive index of the hardened polysiloxane material, B3) Curing the arrangement produced under step B2 to produce a second layer with a filler mixed into the cured polysiloxane material comprising a three-dimensional crosslinking network mainly based on T-units, wherein the produced conversion element is formed as a plate with a thickness of at least 100 µm.

An alpha-sialon phosphor which is represented by general formula (Cax, Euy) (Si12-(m + n) Alm + n) (OnN16-n), and which has an average linear expansion coefficient (alpha ') at 25-900 DEG C of 4.2-4.6 ppm / DEG C (inclusive). In the general formula, 0 < x < 2.0, 0 < y < = 0.5, 0.3 < = x + y < = 2.0, 0 < m < = 4.0, and 0 < n < = 3.0.

The utility model discloses an auxiliary tool for ardealite batten cutting and dividing. The auxiliary tool comprises sliding rail plates used for being fixedly clamped to the two length ends of an ardealite batten. The clamps are installed at the two ends of the bottom of the sliding rail plate. The sliding rail plate is in sliding fit with a sliding block, a balance arm lifting rod is rotatably installed on the sliding block, a cutting machine with a rotatable knife saw disc is fixedly installed at one end of the balance arm lifting rod, and a sliding clamp making rolling contact with the side edge of the ardealite batten is installed at the other end of the balance arm lifting rod. In an installation construction site, the sliding rail plate is flexibly installed on the ardealite batten through the clamps at the two ends of the bottom to flexibly cut the ardealite batten, the overall gravity during cutting is borne with the ardealite batten as a stress foundation, and the purpose that the cutting machine is in a dynamic stable state to cut the ardealite batten along a cutting line is achieved; the problem that when the phosphogypsum batten is large in overall weight and inconvenient to move and adjust for multiple times, flexible cutting cannot be conducted on an installation and construction site is solved.

This specification discloses a converter element and light emitting devices including the converter element. The converter element is monolithic with at least two layers, where one layer is more porous than the other layer. The converter element may be integrated with a reflector layer, such as by metallization. The layer of the converter structure that is denser and having a smoother surface may be the one that is metallized, while the more porous layer is closer to the laser. The porosity enhances light extraction while the smoother surface decreases a loss of reflectivity at the reflector-phosphor interface. The converter element may be used in a laser based light emitting device.

A dual-band phosphor-converted light emitting diode (PC-LED) is provided. The dual-band PC-LED includes a blue LED configured to generate blue light, a first phosphor-based light filter configured to output visible light based on the blue light; and a second phosphor-based light filter configured to output near-infrared light based on the visible light.

A LED filament (2,20) configured to provide LED filament light. The LED filament comprising an elongated carrier (7) extending in a lengthwise direction, said elongated carrier comprising a first major surface (7a). The LED filament further comprises a plurality of LEDs (8) arranged on said first major surface and configured to emit LED light, a first layer (9) free from a luminescent material encapsulating or covering said plurality of LEDs and at least partly encapsulating or covering said first major surface, said first elongated translucent layer having a width, W1, transverse to said lengthwise direction, and a second layer (10) comprising a luminescent material configured to partly convert said LED light, the second layer is arranged on an outer surface (9a) of said first layer, such that the second layer is contained within the width, W1, of the first layer.

The invention provides a light generating system (1000) comprising (i) a plurality of light sources (110,120, . . .), (ii) a first luminescent material (210), and (iii) a second luminescent material (220), wherein: (a) a first light source (110) is configured to generate first light source light (111) having one or more wavelengths in the blue wavelength range and having a first centroid wavelength (λC1), wherein the first light source (110) is a laser; (b) the first luminescent material (210) is configured to convert at least part of the first light source light (111) into first luminescent material light (211) having one or more wavelengths in the green and / or yellow wavelength range; (c) a second light source (120) is configured to generate second light source light (121) having one or more wavelengths in the yellow and / or orange wavelength range and having a second centroid wavelength (λC2), wherein λC2>λC1; wherein the second light source (120) is a superluminescent diode; (d) the second luminescent material (220) is configured to convert at least part of the second light source light (121) into second luminescent material light (221) having one or more wavelengths in the orange and / or red wavelength range; and (e) in an operational mode the light generating system (1000) is configured to generate system light (1001) comprising the first luminescent material light (211) and the second luminescent material light (221).

The invention relates to a stimulus-response lasting phosphorescent material based on carboxymethyl chitosan and a preparation method and application thereof, the preparation method comprises the following steps: preparing a mixed solution: mixing purified carboxymethyl chitosan with pyrene-2, 7-dicarboxylic acid mother liquor dissolved by sodium hydroxide, and introducing acid to adjust the pH value to obtain the mixed solution; and preparing an afterglow film material: pouring the obtained mixed solution into a mold, and drying to obtain the stimulus-response-lasting phosphorescent material based on carboxymethyl chitosan. Compared with the prior art, the material disclosed by the invention is diversified in response dimension, wide in color change range, stable in luminescent property at normal temperature, free of inert gas or vacuum protection in a use process, good in actual operability and reusability, and suitable for customized development of personalized anti-counterfeiting ink; the material can also be used as a functional additive to be doped in hydrophilic macromolecules, and is used for intelligent information labels, wearable display fabrics, noctilucent art materials, flexible encryption coatings and other emerging application scenes.

The present invention provides a lighting device that suppresses enlargement and ensures high heat dissipation while ensuring a wide range of illumination light. The lighting device comprises: a plurality of element modules, each of which is provided with a mounting substrate formed in a shape having a length direction set as a first direction, a semiconductor light-emitting element mounted on the mounting substrate, and a fluorescent layer containing fluorescent bodies of different colors; a control module, which is provided with a control circuit and a wiring substrate formed in a shape having a length direction set as a second direction, the control circuit is formed on the wiring substrate to control the plurality of element modules; and a base plate, which is formed of a metal material and has a planar configuration surface, a plurality of element modules and a control module are configured on the configuration surface, the control module is electrically connected to the plurality of element modules, the plurality of element modules are arranged in a direction orthogonal to the first direction, and the control module is configured along the plurality of element modules in a state where the second direction is consistent with the direction orthogonal to the first direction.

An optical member includes a first light guide member having an elongated shape and comprising an end surface and a lateral surface extending in a longitudinal direction from the end surface; and a wavelength conversion layer disposed on the lateral surface of the first light guide member and containing a phosphor.

The invention provides a light generating system (1000) comprising a first light generating device (110), a second light generating device (120), a luminescent body (210), optionally a first dichroic mirror (521), and a thermally conductive body (500), wherein: the first light generating device (110) is configured to generate first device light (111); wherein the second light generating device (120) is configured to generate second device light (121); the luminescent body (210) comprises a luminescent material (200); wherein the luminescent material (200) is configured to convert (i) at least part of the first device light (111) received by the luminescent material (200), and (ii) at least part of the second device light (121) received by the luminescent material (200), into luminescent material light (201); wherein the luminescent body (210) comprises a first side (211), a second side (212), and a third side (213) bridging the first side (211) and the second side (212); the thermally conductive body (500) a light transmissive section (501); the first side (211) of the luminescent body (210) is configured in a light receiving relationship with the first light generating device (110) via the light transmissive section (501); the second side (212) of the luminescent body (210) is configured in a light receiving relationship with the second light generating device (120); and one or more of part of the first side (211) and at least part of the third side (213) is configured in thermal contact with the thermally conductive body (500); the optional first dichroic mirror (521) is configured between the first light generating device (110) and the luminescent body (210), wherein the first dichroic mirror (521) is configured to have (i) a higher transmission for the first device light (111) than for the luminescent material light (201) and (ii) a higher reflection for the luminescent material light (201) than for the first device light (111); and the light generating system (1000) is configured to generate in a first operational mode of the light generating system (1000) system light (1001) comprising luminescent material light (201).

Provided is a composition for forming a wavelength conversion film, which has excellent curability in air and forms a wavelength conversion film having good light resistance. The composition for forming a wavelength conversion film contains (A) an organic phosphor, (B) a cationic curable compound, and (C) a photoacid generator.

An optical device includes a light-emitting element and an optical combiner. The light-emitting element is configured to emit a type of invisible light. The optical combiner is disposed in an optical path of the type of invisible light. The optical combiner includes a light-transmitting substrate and a series of phosphors. The series of phosphors are disposed on the light-transmitting substrate and are configured to be excited by the type of invisible light to emit a type of visible light.

A hand-held lighting device is disclosed with a handle and a head housing a first and second light source, wherein a longitudinal axis of the head is disposed at a non-parallel angle with respect to a longitudinal axis of the handle. The first light source is annular light emitting diode and the second light source is a light excited phosphor.

Green-emitting phosphors are useful in devices including an LED light source radiationally coupled and / or optically coupled to the phosphors, which are selected from[Ba1-a-bSraCab]x[Mg,Zn]y(UO2)z[P,V]O4)2(x+y+z) / 3,where 0≤a≤1, 0≤b≤1, 0.75≤x≤1.25, 0.75≤y≤1.25, 0.75≤z≤1.25; and[Ba,Sr,Ca,Mg,Zn]p(UO2)q[P,V]rO(2p+2q+5r) / 2,where 2.5≤p≤3.5, 1.75≤q≤2.25, 3.5≤r≤4.5.

A lighting device including at least one light emitter to emit blue light, a green phosphor having an emission peak in a range of 500 nm to 550 nm, a yellow phosphor having an emission peak in a range of 550 nm to 600 nm, and a red phosphor having an emission peak in a range of 600 nm to 650 nm, in which the yellow phosphor and the red phosphor have different full widths at half maximum, and the full width at half maximum of the yellow phosphor is longer than that of the red phosphor, and, in an emission spectrum, an intensity of light emitted from the lighting device increases from 500 nm to 600 nm, and the intensity of light emitted from the lighting device at 700 nm is less than about 10% of the maximum intensity of light emitted from the lighting device.

The invention relates to the field of semiconductors, in particular to a preparation method and a value fixing method of a wafer dielectric film doping concentration standard sample wafer. Comprising the following steps: S1, preparing two silicon substrates, and performing a deposition step through PECVD (Plasma Enhanced Chemical Vapor Deposition) so as to deposit buffer layers on the silicon substrates; s2, executing a deposition step on one silicon substrate through PECVD (Plasma Enhanced Chemical Vapor Deposition) so as to deposit the dielectric film layer on the buffer layer; according to the preparation method, impurities such as boron and phosphorus in the standard sample can be effectively prevented from reacting with internal or external moisture, and the problem that the impurity concentration changes along with time is solved, so that the stability is kept; the defects related to phosphorus and boron in the dielectric film during annealing and the phenomenon that the dopant diffuses towards the silicon substrate and the outside can be effectively improved; according to the valuing method disclosed by the invention, precise valuing of the contents of the dopants B and P of the dielectric film layer can be realized through ICP / MS based on the developed standard sample wafer and the auxiliary sample wafer.

A lighting device disclosed in an embodiment of the invention includes: a lighting module emitting a first light and a second light; and a lens disposed on the lighting module to block light of a shorter wavelength among the first light and the second light and transmit light of a longer wavelength, wherein the lighting module includes: a substrate; a plurality of light emitting devices disposed on the substrate and emitting a first light; a resin layer covering the plurality of light emitting devices; and a phosphor layer disposed on the resin layer to convert the first light into second light, wherein the first and second light travel through the phosphor layer in the lens direction, and the second light may pass through the lens.