33results about How to "Small color deviation" patented technology

The invention discloses a sub-arc-second large-aperture compact optical structure for detecting dim point targets. The sub-arc-second large-aperture compact optical structure comprises a lens drum, as well as an optical system and an image surface which are arranged inside the lens drum, wherein the optical system comprises a first aperture correcting lens, a secondary reflector, a second aperture correcting lens, a first view field correcting lens, a second view field correcting lens and a main reflector; the axle centers of the first aperture correcting lens, the secondary reflector, the second aperture correcting lens, the first view field correcting lens, the second view field correcting lens and the main reflector are sequentially arranged in the same straight line; the secondary reflector is clung to the side surface of the first aperture correcting lens; the coverage range of the side surface of the first aperture correcting lens of the secondary reflector meets the imaging requirement; a circular hole is formed in the center of the main reflecting lens; the first view field correcting lens and the second view field correcting lens are arranged in the range limited by an opening of the circular hole; the image surface is arranged at the center of the side surface of the main reflector. The measurement accuracy of the sub-arc-second large-aperture compact optical structure is superior to the sub-arc-second grade; the optical aperture is equivalent to the total optical length; the structure is compact in structure and is suitable for detection of the dim point targets such as super-high-accuracy star sensors and space fragments.

Provided is a sintered phosphor-composite for an LED, having high heat resistance, high thermal conductivity, high luminance, and high conversion efficacy. In addition, there are provided: a light-emitting apparatus which uses the sintered phosphor-composite; and an illumination apparatus and a vehicular headlamp which use the light-emitting apparatus. The sintered phosphor-composite includes a nitride phosphor and a fluoride inorganic binder. The sintered phosphor-composite preferably has an internal quantum efficiency of 60% or more when excited by blue light having a wavelength of 450 nm. Further, the sintered phosphor-composite preferably has a transmittance of 20% or more at a wavelength of 700 nm.

The invention discloses a production process of color masterbatch, which comprises: configuring according to the formula ratio of color masterbatch, color masterbatch including colorant, carrier and dispersant; feeding the material obtained by batching into an extruder, and passing through the crushing of the extruder , shear mixing, heating and melting, extrusion; the melt extruded by the extruder is cooled into solid material strips; the solid material strips obtained after cooling are pelletized to make color masterbatch; the colorant used is Base color particles processed from powdered toner. The color masterbatch production process involved in the present invention first processes the purchased powdery colorant into base color particles, so that there is no dust in the production process of the color masterbatch, which improves the working environment and safety, and is beneficial Workers are healthy. There is no scattering of powder during the weighing process, which improves the accuracy of weighing, makes the color stability better and the color deviation is smaller.

The invention discloses temperable magnetron sputtering single silver LOW-E glass, comprising a glass substrate, the glass is characterized in that 9 membrane layers are adjacently and sequentially formed on the composite surface of the glass substrate from inside to outside in a magnetron sputtering manner, wherein the first membrane layer, namely the innermost layer is an Si3N4 layer, the second layer is a TiO2 layer, the third layer is a CrNx layer, the fourth layer is a ZnO layer, the fifth layer is an Ag layer, the sixth layer is a CrNxOy layer, the seventh layer is a ZnSn3O4 layer, the eighth layer is a TiO2 layer and the ninth layer is an Si3N4Oy layer. The invention aims at overcoming the defects of the prior art to provide temperable magnetron sputtering single silver LOW-E glasshaving high transmissivity, strong combination force of film coating layer and glass substrate, and uniform and dense film coating layer; and the invention also provides a method for preparing temperable single silver LOW-E glass by magnetron sputtering method.

The invention relates to a textile printing and dyeing liquid dyeing agent blending system and blending method. The textile printing and dyeing liquid dyeing agent blending system comprises a fixed base, a mounting rack, connecting plates, a working roller and a blending device; the mounting rack is fixed in the middle of the upper end of the fixed base; the connecting plates are bilaterally and symmetrically mounted in the middle of the mounting rack; the working roller is connected between the connecting plates; and the blending device is arranged in the working roller. The problems that when a traditional textile printing and dyeing liquid dyeing agent is prepared, part of pigment powder remains on the inner wall of a tank body and a mechanism for extruding the printing and dyeing liquid, the mass of the printing and dyeing liquid is reduced, the printing and dyeing liquid is mixed with the printing and dyeing liquid to be prepared next time, the color of the printing and dyeing liquid has relatively large deviation, and the problems that a dyeing agent needs to be stirred, and printing and dyeing liquid needs to be discharged and cleaned, so that a plurality of drivers are often needed to complete the steps, resource waste is caused, installation is relatively inconvenient due to the fact that the number of the drivers is large, and the overall work of the device is difficult are solved.

The invention provides a white point coordinate compensation method and device, computer equipment and a storage medium, and belongs to the technical field of display. The method comprises the following steps: acquiring target brightness and target white point coordinates of a display module in a black frame insertion mode, wherein the display module comprises a backlight source; respectively determining white point coordinates corresponding to the target brightness to be reached by the backlight source in a black insertion mode and a normally-on mode; and compensating the target white point coordinate by adopting a difference value between the white point coordinate in the normally-on mode and the white point coordinate in the black frame insertion mode.

Disclosed herein is a light guide plate formed by injection molding of an aromatic polycarbonate resin that is a polymer of an aromatic dihydroxy compound and a diaryl carbonate. The aromatic dihydroxy compound and the diaryl carbonate are present in a mole ratio of about 1:1.02 to about 1:1.35, and the aromatic polycarbonate resin has a weight average molecular weight from about 10,000 g/mol to about 18,000 g/mol and includes about 5 mol % to about 30 mol % of terminal hydroxyl groups relative to total moles of terminal groups. The light guide plate formed of the aromatic polycarbonate resin can reduce a yellowing phenomenon upon injection molding, can exhibit low color deviation under high temperature and high humidity conditions, and can secure excellent properties in terms of discoloration resistance, and brightness quality (brightness uniformity), and the like.

The invention discloses temperable three-silver LOW-E glass which comprises a glass substrate, wherein twenty film layers are adjacently compounded on the composite surface of the glass substrate from inside to outside in sequence. The temperable three-silver LOW-E glass is characterized in that the first film layer, namely, the innermost layer, is the SiNx layer, the second film layer is the TiO2 layer, the third film layer is the ZnO layer, the fourth film layer is the NiCr layer, the fifth film layer is the Ag layer, the sixth film layer is the NiCr layer, the seventh film layer is the TiO2 layer, the eighth film layer is the ZnO2 layer, the ninth film layer is the NiCr layer, the tenth film layer is the Ag layer, the eleventh film layer is the NiCr layer, the twelfth film layer is the TiO2 layer, the thirteenth film layer is the ZnO2 layer, the fourteenth film layer is the NiCr layer, the fifteenth film layer is the Ag layer, the sixteenth film layer is the NiCr layer, the seventeenth film layer is the TiO2 layer, the eighteenth film layer is the ZnO layer, the nineteenth film layer is the SiNx layer, and the twentieth layer, namely, the outermost layer, is the SiC layer.

The invention discloses novel temperable double-silver low-emissivity energy-saving glass. The energy-saving glass comprises a glass sheet and a coating; the coating comprises a first medium layer, afirst medium protection and seed layer, a first functional layer, a second medium layer, a third medium layer, a second medium protection and seed layer, a second functional layer, a second metal protective layer, a fourth medium layer and a third protective layer from the glass sheet to outside in sequence. The energy-saving glass has the advantages of low color deviation before and after tempering, high coating strength, and low color deviation between the front side and the lateral side, and the application of the LOW-E glass in different fields is promoted.

The invention provides blue-gray three-silver low-emissivity coated glass and a preparation method thereof, and belongs to the technical field of magnetron sputtering coating. The blue-gray three-silver low-emissivity coated glass comprises a glass substrate layer and coating layers, the coating layers comprise seventeen coating layers sequentially compounded from the glass substrate layer to the outside, the first layer and the second layer adopt a first dielectric combination layer, the third layer adopts a low-emissivity functional layer, the fourth layer adopts a first blocking protective layer, the fifth layer adopts a crystal bed dielectric layer, the sixth layer and the seventh layer adopt a second dielectric combined layer, the eighth layer adopts a low-emissivity functional layer, the ninth layer adopts a low-emissivity functional layer, the tenth layer and the eleventh layer adopt a second blocking protective layer, the twelfth layer adopts a crystal bed dielectric layer, the thirteenth layer and the fourteenth layer adopt a third dielectric combined layer, the fifteenth layer adopts a low-emissivity functional layer, the sixteenth layer adopts a third blocking protective layer, and the seventeenth layer adopts a fourth dielectric layer. The glass is blue gray, and the problem that conventional three-silver blue coated glass is turbid in color and insufficient in permeability is solved.

The invention relates to the technical field of metal coating, in particular to a champagne gold coating preparation process which comprises the following steps: S1, providing a metal plate to be processed, putting the metal plate into a vacuum chamber, and vacuumizing; s2, it is guaranteed that the air pressure in the vacuum chamber is stable, a high-voltage transformer is started, a bombardment power source is started, air is ionized into plasma in the discharging state, and bombardment cleaning activation is conducted on the workpiece; and S3, a reactive magnetron sputtering coating process is utilized, co-sputtering coating is conducted with the titanium-aluminum alloy as a target material, coating is conducted with nitrogen and acetylene gas as reaction gas, the gas flow, the reaction time and the reaction temperature of the nitrogen and the acetylene gas are controlled, and finally a champagne gold film layer is formed on the surface of the metal plate. According to the invention, when the metal plate is coated, the vacuum coating process in the traditional process is optimized, and through formula control, when specific champagne gold surface treatment is carried out, the yield is ensured, the color deviation is low, and the processing quality is further improved.

The invention discloses a light-emitting device capable of adjusting color temperature. The device comprises a substrate, and an LED light source capable of emitting white light with at least two different color temperatures is arranged on the substrate. The device has the advantages that one LED light source capable of emitting white light with at least two different color temperatures is adopted, so that the light-emitting device can achieve color temperature adjustment by adopting one LED light source, the LED light source is small in color deviation and uniform in light emitting during mixed color light emitting, meanwhile, due to the fact that the LED light source does not need to be installed in two times, operation procedures are reduced, labor cost is reduced, installation on a small-size substrate is facilitated, and operation is convenient.