35results about How to "Remove halo" patented technology

Provided is a foreign matter inspection method for positively detecting a foreign matter in the neighborhood of the edge of a mirror-finished substrate without fail. Edge-emphasis and binarization are performed following the taking of an image of a substrate-under-inspection at a contour of its inspection area, to further detect a plurality of sampling points representative of a contour of the inspection area. An estimated inspection area is determined by determining the size, position and rotation angle of contour lines defined, size-reducibly, from the coordinates of the plurality of sampling points. After applying a mask to the binary image data in an area other than the estimated inspection area, a foreign-matter detection step is performed.

The invention discloses a method for a CCD camera for resisting longitudinal halo, and in particular relates to the method for a high-definition digital camera in a monitoring system for resisting the longitudinal halo. The method is supported by hardware comprising a field programmable gate array module, a voltage conversion module, a charge coupled pickup device module and a CCD signal processing module, wherein the field programmable gate array module is provided with program modules for controlling time sequence such as a counter generating module, an HD generating module, a Vphi1 generating module, a Vphi2A generating module, a Vphi2B generating module, a Vphi3 generating module and a SUB generating module; the time sequence for removing charges before the time sequence for exposure is added under the control of the programs of the modules so as to achieve the purpose of removing the longitudinal halo; and when the camera capable of removing the longitudinal halo is used for picking up images, clear images can be acquired even in strong sunlight; therefore, the camera provides powerful technical support for the traffic monitoring, the security monitoring, the maintenance of security of society and the traffic safety.

The invention provides a polycarbonate material composition of a reinforced LED lamp shade. The polycarbonate material composition comprises 100-120 parts of polycarbonate, 10-15 parts of polymethyl methacrylate, 5-15 parts of light scattering master batch, 4-8 parts of interface reinforcing phase, 2-4 parts of inorganic nanoparticles, 2.0-2.5 parts of methoxyl polyglycol acetic acid, 2-4 parts of a compatilizer MAH-g-EPDM and 0.5-1.5 parts of other functional additives, wherein the interface reinforcing phase is at least one of nanometer aluminum oxide crystal particles or crystal whiskers. The polycarbonate material composition of the reinforced LED lamp shade, which is provided by the invention, is relatively excellent in light permeability and light scattering property, is capable of eliminating the phenomena of halo or dark spot generated from the dispersibility, and is also relatively excellent in mechanical property.