32results about How to "Wide luminous range" patented technology

A GaN-based semiconductor light-emitting device includes (A) a first GaN-based compound semiconductor layer 13 having n-type conductivity, (B) an active layer 15 having a multi-quantum well structure including well layers and barrier layers for separating between the well layers, and (C) a second GaN-based compound semiconductor layer 17 having p-type conductivity. The well layers are disposed in the active layer 15 so as to satisfy the relation d₁<d₂ wherein d₁ is the well layer density on the first GaN-based compound semiconductor layer side in the active layer and d₂ is the well layer density on the second GaN-based compound semiconductor layer side.

An image processing apparatus that generates a combined image by combining plural image data acquired as a result of digitizing plural images acquired by shooting with different quantities of exposure, includes a weighting unit that adds weight to adjust proportion of combination of the image data, to at least one of the plural image data. The weighting unit includes a luminance data generating unit that combines data related to luminance of the plural image data and thus generates combined luminance data, and a weight deciding unit that decides the weight added to the image data in accordance with the combined luminance data generated by the luminance data generating unit.

The invention relates to a method for building uniform immunity analyzing nanometer device, composed of a hyperoxide enzyme, an immunity compound, and an energy acceptor nanometer particle cadmium telluride quantum point, which uses the cadmium telluride quantum point as core lighting based on chemical lighting resonance energy transfer theory to be connected with an antigen or an antibody via static or covalence function, and the hyperoxide enzyme is connected with the antibody via covalence, to obtain the biological nanometer device based on antigen-antibody immunity reaction. The invention has better solubility and stability, adjustable emitting wavelength, low background interface, strong light signal via chemical lighting resonance energy transfer, and the application in uniform immunity analysis, without external laser light source.

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.

An optical disc records a Tone_map stream including tone_mapping_info including HDR information indicating a luminance feature of HDR graphics which are graphics with a second luminance range different from and broader than a first luminance range and tone_mapping_info which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics with the first luminance range is performed, and a graphics stream of the HDR graphics. The present technology is applicable to a recording medium recording graphics.

The invention relates to PbS quantum dot doped glass with a broad spectrum fluorescent characteristic in femtosecond laser direct writing and a preparation method thereof. The quantum dot luminescent glass comprises a glass substrate and a photoluminescent part which is obtained by femtosecond laser focus irradiation in the glass substrate. The prepared luminescent glass is doped with sulfur and lead, and lead sulfide quantum dots are precipitated inductively in a laser irradiation area through the femtosecond laser focus irradiation, so that the area has a photoluminescent characteristic. A light emitting area has higher light-emitting strength, a wider near-infrared band of 860 to 1,700 nanometers is covered, and the PbS quantum dot doped glass has application prospects on the aspects of near-infrared broadband spectrum light sources and the like.

The invention relates to a dual-emission solid yellow-light carbon quantum dot and a preparation method thereof. The preparation method comprises the following step: with phloroglucinol as a carbon source, ethylenediamine as a nitrogen source and boric acid as a boron source, carrying out a heating reaction in an aqueous medium under normal pressure to prepare the carbon quantum dot. The carbon quantum dot with bright yellow fluorescence and double-peak emission in a solid state is prepared; with the unique double-peak emission, the carbon quantum dot is applicable as fluorescent powder for preparation of a white light emitting diode; and due to the fact that the carbon quantum dot covers a wide light emitting range, the color rendering property of the light emitting diode can be improved.

The invention provides a modular LED street lamp structure. The modular LED street lamp structure comprises a light-emitting part and a power supply part, wherein the light-emitting part comprises a plurality of lamp bodies formed by die casting, the lamp bodies are connected together through fixing screw rods, an isosceles trapezium protrudes from the center of the inner side of each lamp body, two side surfaces of each isosceles trapezium are used for mounting lamp plates, a light-supplementing lamp plate is mounted on the top surface of each isosceles trapezium, and a light reflection plate which is matched with the shape of the inner side of the lamp body, the light plates and the light-supplementing lamp plate is further mounted on the inner side of each lamp body; the lamp body at the leftmost end is connected with a front lamp body, a front cover is arranged on the outer side of the front lamp body; an outer cover is arranged on the outer side surface of each lamp body, and the two sides of the outer cover are fixed on the lamp body through fixing pressure strips. The modular LED street lamp structure provided by the invention has the benefits that radiating fins are arranged on the front lamp body, the lamp bodies and a rear lamp body, so that the heat radiation effect is good; a modular combined structure is realized by waterproof adhesive sheets, so that the cost of a mold during production is greatly reduced; street lamps with different specifications can be realized by adjusting the number of the lamp bodies which are combined together.

The invention discloses an LED lamp bead. The LED lamp bead comprises an insulating colloid, a circuit board, an IC chip, a light emitting diode and a pin; the circuit board, the IC chip and the lightemitting diode are all arranged in the insulating colloid. The IC chip, the light emitting diode and the pin are all arranged on the circuit board. One end of the pin is arranged outside the insulating colloid, and the other end of the pin is arranged in the insulating colloid and is electrically connected with the IC chip; the light emitting diode is electrically connected with the IC chip, thelight emitting diode is arranged on the upper surface of the circuit board, and the IC chip is arranged on the lower surface of the circuit board. The LED lamp bead further comprises an elargol blockarranged on the upper surface of the circuit board, and the light emitting diode is bonded to the circuit board through the elargol block. The LED lamp bead disclosed by the invention is convenient for efficient heat dissipation and longer in service life.

The invention discloses a rotary-support-based bank light structure. The rotary-support-based bank light structure comprises a fixed base and a rotary base rotatably connected with the fixed base. Therotary base is connected with four rotary clamping blocks through rotary rods. Light holders are fixed to the corresponding rotary clamping blocks through bolts. The fixed base is provided with a cylindrical clamping groove. A cylindrical rod is arranged at the bottom of the cylindrical clamping groove in a threaded fit mode. The upper end of the cylindrical rod is in threaded fit with a circularcover plate. The rotary base is provided with a cover plate groove matched with the circular cover plate. A circular bottom hole matched with the cylindrical rod is formed in the center of the bottomof the cover plate groove. Through cooperation of the cylindrical rod and the circular bottom hole and cooperation of the rotary rods and the rotary clamping blocks, 360-degree all-directional and no-dead-angle operation of a bank light is effectively guaranteed. Meanwhile, the fixed base, the rotary base, the rotary clamping blocks and the lamp holders are connected through the rotary rods and the bolts, and the problems of high workload and low efficiency of disassembling and assembling of the bank light are solved.

The invention discloses an LED lamp and belongs to the technical field of LEDs. The LED lamp comprises a lamp cap, a lamp holder, LED beads, an aluminum substrate, a lampshade and a radiator. The lamp cap is arranged at the bottom of the lamp holder, the aluminum substrate is arranged on the lamp holder, the LED beads are arranged on the aluminum substrate, the lampshade is arranged on the periphery of the lamp holder, the radiator is arranged between the lamp holder and the lamp cap, cooling fins are arranged on the periphery of the radiator, and the bottom of the lamp cap is provided with electrode pins. The LED lamp has the beneficial effects of being wide in light emitting range, bright in light source, good in cooling performance, capable of prolonging the service life, convenient to use and popularize and the like.