51results about How to "Improve spot" patented technology

A high capacity microarrayer for spotting solution onto slides in an automated microarray dispensing device. A microplate indexing device automatically moves, in sequence, a plurality of microplates to a solution removal area. A dispense head accesses each microplate at the solution removal area to remove solution from the microplate. The dispense head then moves to a slide positioning station to spot slides at the slide positioning station. In a preferred embodiment of the present invention, the microplate indexing station has at least one input stacking chamber for stacking microplates, and at least one output stacking chamber for stacking microplates. A walking beam indexer is disposed between the at least one input stacking chamber and the at least one output stacking chamber. The walking beam indexer is for moving microplates from said at least one input stacking chamber to said at least one output stacking chamber. While at the solution removal area, a lid lifter lifts the lid off each microplate to permit the microplate to be accessed by the dispense head for solution removal. After the solution is removed, the lid lifter replaces the lid. In another preferred embodiment, there is at least one light source capable of illuminating the slides, and at least one camera operating in conjunction with the at least one light source. The at least one camera is capable of acquiring and transmitting slide image data to a computer. The computer is programmed to receive the slide image and analyze it. The computer will then generate post analysis data based on the analysis of the slide image data. The post analysis data is available for improving the spotting of the solution onto the slides. In a preferred embodiment, the slide image data includes information relating to slide alignment, information relating to spot quality, and slide identification information. In a preferred embodiment, the analysis of the information relating to slide alignment enables the computer to make automatic adjustments to the relative positions of the at least one dispense head and the slides to increase the accuracy of the spotting. In a preferred embodiment, the analysis of the information relating to spot quality identifies a spot as pass or fail. An operator is then able to rework the spot. In a preferred embodiment, the analysis of the slide identification information enables the computer to track each slide.

Disclosed are an optical scanning system and an image forming apparatus having the same, wherein the optical scanning system includes a light source, a deflector, an input optical system for directing a light beam from the light source to the deflector, and an imaging optical system for directing the light beam deflected by the deflector onto a surface to be scanned, wherein the input optical system includes a first optical element having a power both in a main-scan sectional plane and in a sub-scan sectional plane, and a second optical element having a power in the sub-scan sectional plane, and wherein at least one surface of the first optical element has a shape being rotationally asymmetrical and, in the sub-scan sectional plane, being non-arcuate.

The invention discloses a preparation method of a quantum well emitting semiconductor laser used for improving the output light spot, relating to the technical field of a semiconductor laser. The preparation method comprises the steps as follows: A. a Ga-As damping layer and a Ga-In-P damping layer are sequentially prepared on an N-typed Ga-As underlay; B. an Al-Ga-In-P limiting layer, a fibre waveguide layer and an active layer are sequentially prepared on the Ga-In-P damping layer and a structure which limits heterostructures is respectively formed; C. a dual-ridge waveguide is formed on an external extension sheet by etching twice; a ridge-shaped table is prepared to be taken as a light outlet surface; D. an electric insulation film is deposited on the ridge-shaped table; E. a P-surface electrode is prepared on the electric insulation film; F. an N-surface electrode is prepared after the N-typed underlay is thinned and polished. The preparation method of the invention ensures that the original output power and the photoelectric conversion efficiency of the ridge-shaped fibre wave guide laser are not affected basically, increases the parallel divergence angle and improves the output light spot of the laser.

In an optical pickup apparatus, a collimator lens is rockably supported by edges of two protruding portions formed on opposing sides of a groove of an optical base. The collimator lens is urged against the edges of the two protruding portions by a leaf spring. The position in vertical direction of one end of the leaf spring is adjusted by a position adjustor. In this manner, a tilt angle of the collimator lens is adjusted. Therefore, astigmatism of the light spot can precisely be compensated for irrespective of variations among apparatuses to achieve an excellent light spot.

The invention discloses an LED lamp and an encapsulating method thereof. The size and appearance of an LED chip, a reflecting cup, and an illuminator of the LED lamp are designed according to a certain requirement, so that the light distribution curve of three rays of red, green and blue of the manufactured LED lamp can achieve the three lines-one effect; the light outgoing effect of the LED lamp is more flush; and the light spot and the light shape can be improved. The encapsulating method of the invention is simple, and the manufactured LED lamp can effectively improve the lighting effect of the LED lamp.

The invention discloses a liquid crystal display and a backlight module thereof. The backlight module comprises a light guide plate and a linear light source. The light guide plate has a top light leaving face and a lateral light incident face, wherein the top light leaving face comprises a peripheral area and an effective lighting area. The linear light source comprises a circuit board, a plurality of solid light emitting elements and a reflector. The solid light emitting elements are configured on the circuit board and are electrically connected with the circuit board, the light beams provided by the solid light emitting elements enter the light guide plate from the lateral light incident face, and the reflector covers part of the peripheral area. In addition, the reflector comprises a plurality of reflecting parts corresponding to the solid light emitting elements and a plurality of second reflecting parts connected between each two adjacent first reflecting parts, the first and second reflecting parts extend toward the direction of the effective lighting area from the edge of the top light leaving face, and the extended length of the first reflecting parts is smaller than that of the second reflecting parts. In the invention, the light spots generated by the backlight module can be effectively improved.

The invention provides an LED (light-emitting diode) packaging structure and a packaging molding method. The LED packaging structure comprises an LED support, an LED chip, two metal wires and a multilayer silica gel layer, wherein the LED chip is fixed on the surface of the LED support, and the two metal wires are used for connecting the LED support with the LED chip; and the multilayer silica gel layer covers the LED support, the LED chip and the two metal wires. The packaging structure obtained by adopting the LED packaging method provided by the invention can effectively improve LED facula and light type, so that the LED sends out light uniformly, the light power loss is reduced, the external quantum efficiency and the LED reliability are improved, and light failure is reduced.

The invention relates to an apparatus for improving optical fiber output laser light spot homogenization. The apparatus comprises an optical fiber, an optical fiber protection pipe and a bended pipe. According to different light spot output requirements, different bended pipes are installed; the bended pipe is installed on the optical fiber or the optical fiber protection pipe to change light phase propagation mode distribution in a multimode fiber. Therefore, spatial distribution of light beams outputted from an optical fiber end surface is changed and a purpose of improving optical spots is reached.

The invention relates to white light LED (Light Emitting Diode) fluorescent powder with a chemical formula Sr(3-x)MgSiO7:xTb<3+>, wherein x is more than or equal to 0.01 and less than or equal to 0.25. The invention also provides a preparation method of the white light LED fluorescent powder. The preparation method comprises the following steps of: weighing silicon dioxide, magnesia, strontium carbonate and tetraterbium heptoxide; adding a charge compensator and a fusing assistant; mixing and grinding the raw materials; and feeding the mixture in a roasting crucible for roasting; cooling, crushing, washing and sieving to obtain the white light LED fluorescent powder. The white light LED fluorescent powder disclosed by the invention has the advantages of low price of raw materials, simple synthetic method, low loss of equipment, no need of special high-temperature equipment and the like.

The invention discloses a novel preparation method for LED (Light Emitting Diode) fluorescent powder. The method comprises the following steps of: based on a chemical formula of Y4-x-yGdGa5R1-2O16:Ce<3+>xEu<2+>y, weighing yttrium oxide, gallium oxide, gadolinium oxide, alkaline earth, cerium oxide and europium oxide according to a molar ratio respectively, wherein X is equal to 0.05-0.10; Y is equal to 0.01-0.10; adding 1-8 percent of mixed fluxing agent including barium fluoride, cerium fluoride and yttrium fluoride to obtain a mixture; uniformly mixing the mixture in a mixer; filling in a baked corundum crucible; placing in a high-temperature furnace to heat; introducing nitrogen and hydrogen mixed gas or pure hydrogen as a reducing atmosphere; preserving heat; heating to bake; cooling and then crushing; and washing and then screening to obtain the LED fluorescent powder. The fluorescent powder has a wide wave spectrum range; and emission spectrum of 530-630nm can be obtained when the fluorescent powder is excited by light of 440-460nm.

The invention discloses a stage lamp. The stage lamp comprises a lamp bulb assembly for emitting light, and further comprises a fixing plate and regulating devices, wherein the regulating devices comprise a first regulating device and a second regulating device; the lamp bulb assembly is mounted on the second regulating device; the first regulating device can move in parallel relative to the fixing plate in a first direction and is connected with the fixing plate; the second regulating device can move in parallel relative to the first regulating device in a second direction and is connected with the first regulating device; the first direction is perpendicular to the second direction. Through arrangement of the two regulating mechanisms, the positions of the lamp bulb assembly in two different directions on the same horizontal plane can be regulated, so that errors caused in the mounting and machining processes are overcome.

The invention relates to a color-temperature-adjustable LED bulb lamp. The color-temperature-adjustable LED bulb lamp comprises a lamp cap, a bulb shell and an LED light source arranged in the bulb shell. The LED light source comprises a first light source body and a second light source body which are independent of each other and are separately controlled. The first light source body and the second light source body are parallel to each other or coplanar and are coaxial with the lamp cap. The first light source body comprises a first substrate. A first light-emitting chip set composed of multiple LED chips is arranged on the first substrate. The second light source body comprises a second light-emitting chip set composed of multiple LED chips. The surface of the first light-emitting chip set is wrapped with a first fluorescent adhesive layer, the surface of the second light-emitting chip set is wrapped with a second fluorescent adhesive layer, and the first fluorescent adhesive layer and the second fluorescent adhesive layer are different in color temperature. The luminous flux proportion of the light emitted by the first light source body and the light emitted by the second light source body is adjusted by changing the current across the first light source body and the current across the second light source body, light with different color temperatures is obtained through mixing, and adjustment of and control over the color temperature of the light emitted by the LED bulb lamp are achieved.

The invention discloses a COB LED lamp for plant illumination. The structure of the LED lamp comprises an aluminum substrate, wherein a blue LED chip, red LED chips and a white LED chip are packaged by COB. The LED lamp is characterized in that the quantity ratio of the red LED chips, the blue LED chip and the white LED chip is 10: 1: 1, and the red LED chips encircle the blue LED chip and the white LED chip. The COB LED lamp for plant illumination disclosed by the invention is small in area, high in heat dissipating efficiency, small in driving current and long in service life, and the proportion of red lights and blue lights can be randomly changed according to the demand.

The invention relates to a semiconductor luminous device, and belongs to the field of light-emitting diodes. In the semiconductor luminous device, a transparent glass sheet is arranged on the upper part of dispensed fluorescent adhesive, so that the thickness of a fluorescent adhesive membrane on the surface of a device is uniform; and a transparent support is positioned between the glass sheet and the luminous device, so the problem of large color temperature difference among different encapsulation devices is solved. By the semiconductor luminous device, the uniformity of the color temperature of the single encapsulation device can be realized in a simple mode, the light spots of the devices and the consistency of the color temperature among different devices are improved, and the production efficiency is improved.

The invention relates to a power type laser fiber plug-in, which relates to the technical field of laser fiber plug-in. A power-type laser optical fiber plug-in is composed of a deep micro-hole inclined-plane ferrule (1) and a concentric metal shaft sleeve (2) in an embedded manner. The slope angle of the deep micro-hole slope ferrule (1) is 5-10°, which is a material with a low expansion coefficient. The central positioning of the inclined-plane ferrule (1) with deep tiny holes matches the optical fiber with an outer diameter of 125um-1200um. The concentric metal bushing (2) is a um-level precision metal jacket. The invention locates the optical fiber with large core diameter, conducts high-power laser, and greatly improves the spot of the laser beam output through the optical fiber. It avoids the phenomenon of heating and spontaneous combustion caused by optical fiber collimation coupling structural factors and the damage of laser light source caused by high-power laser reflection. Provide a solid technical and material basis for the safety, reliability and effective output power improvement of high-power laser conducting optical fibers in laser cutting, welding, and medical minimally invasive technology.

The invention provides matte coated paper with an ultra-fine surface feeling and a preparation method of the matte coated paper. The matte coated paper comprises a raw paper layer, a pre-coating layerand a surface coating layer, wherein raw paper layer pulp comprises the following raw materials in parts by weight: 50-90 parts of short fiber pulp, 5-30 parts of long fiber pulp, 5-30 parts of mechanical pulp, 2-5 parts of a flow aid, 1-4 parts of a filter aid and 3-8 parts of cationic starch; the coating is prepared from the following raw materials in parts by weight: 70-90 parts of ground calcium carbonate, 60-80 parts of light calcium carbonate, 50-70 parts of latex, 20-26 parts of starch, 4-6 parts of a dispersing agent, 3-5 parts of a defoaming agent, 3-9 parts of a lubricating agent, 5-8 parts of a thickening agent and 3-5 parts of alkali liquor. The matte coated paper prepared by improving the flatness of the base paper and optimizing the formula of the coating is fine and smoothin paper surface, high in printing performance, small in flexibility and high in book strength, and can be suitable for a high-speed printing machine.