5results about How to "Eliminate moiré" patented technology

The present application relates to a method for generating a hybrid random structure metal grid for transparent electromagnetic shielding. The method comprises: firstly generating a grid structure of multiple regular polygons arranged periodically in a preset rectangular plane, then generating a ring with the vertex of each regular polygon as the center, and finally arbitrarily offsetting the center position of each ring and randomly changing the radius of each ring to finally generate a ring-polygon hybrid random metal grid structure. In the whole structure pattern generation process, the random variables are superimposed twice, so the randomness of the grid structure pattern obtained in the end is greatly enhanced, so that the moiré fringes can be better eliminated to improve the imaging quality.

A high-brightness COB screen with a novel heat dissipation structure comprises a circuit substrate, LED light-emitting bodies, a heat conduction part, a light guide cover and a heat dissipation part, and the LED light-emitting bodies are distributed in an array mode and welded to the circuit substrate; the heat conduction parts are distributed on the circuit substrate in an array mode, wrap the LED light-emitting bodies and are made of transparent heat conduction materials. The light guide covers are distributed in an array mode and cover the heat conduction part, the ends, away from the heat conduction part, of the light guide covers are in a prismatic table shape, and the light guide covers are made of transparent heat conduction materials. The heat dissipation part is filled between the light guide covers and is connected with the circuit substrate. According to the utility model, heat directly generated by the LED luminous body is transferred to the heat dissipation part by utilizing the heat conduction part and the light guide cover, and is dissipated by the heat dissipation part; and heat generated by the circuit substrate is directly transmitted to the heat dissipation part for heat dissipation, so that the heat dissipation performance can be greatly improved through the structure. In addition, the lens structure formed by the heat conduction part and the light guide cover can change the transmission path of light rays, so that the moire phenomenon can be eliminated under the condition that the brightness is not lost.

Embodiments of the present disclosure provide a moire elimination method and device, electronic equipment and storage medium. The moire elimination method comprises: displaying a plurality of corner points in a display screen based on position information of the plurality of corner points; in the case where a touch operation for the plurality of corner points is detected, capturing the touch operation by using a camera to obtain calibration data of the camera for the plurality of corner points; and calibrating camera parameters of the camera based on the calibration data of the camera for the plurality of corner points to obtain target camera parameters of the camera. Embodiments of the present disclosure can reduce input error of calibration data.

The utility model discloses a kind of contact image sensor of eliminating moire and the currency verification device applying it, contact image sensor includes shell, optical lens, first light source, second light source and photosensitive element, optical lens is columnar lens and vertically arranged in shell, first light source and second light source are separately arranged in the both sides of columnar lens and the light-emitting surface is inclined towards the side where columnar lens is, photosensitive element is located directly below optical lens, diffusion sheet is arranged between optical lens and photosensitive element, light emitted by light source is formed reflected light after being reflected by to-be-scanned object, reflected light is received by photosensitive element after being scattered by diffusion sheet after being shot into optical lens, the haze of diffusion sheet is 40~60%.The contact image sensor is applied to currency verification device, in the case where focal length is not changed, light is scattered to multiple directions using the diffusion sheet added, so that light becomes more soft and uniform, moire is reduced or even eliminated, and the accuracy of identifying the authenticity of banknotes is improved.

This utility model discloses an anti-glare glass and an electronic device, wherein the anti-glare glass includes: at least one anti-glare surface; a groove array consisting of multiple parallel rows of grooves on the anti-glare surface; each row of the groove array includes multiple grooves with different diameters, and the center distance between adjacent grooves is the same, and adjacent grooves share the same side; the diameter of the grooves ranges from 20 to 150 μm; the spacing between adjacent rows of the groove array is not greater than cos30° of the diameter of the groove.