초록 ▼

A system for evaluating the optical characteristics of curved surfaces includes a light source disposed to scan a beam of light across a surface and ranging means for measuring the distance from the light source to the point being scanned and a controller for controlling the position of the light be

A system for evaluating the optical characteristics of curved surfaces includes a light source disposed to scan a beam of light across a surface and ranging means for measuring the distance from the light source to the point being scanned and a controller for controlling the position of the light beam with regard to the measured distance so as to maintain reflected illumination upon a detector. By analysis of the profile of the reflected light, parameters such as gloss, distinctness of image, orange peel and surface roughness may be readily determined.

대표청구항 ▼

An inspection system adapted to measure optical characteristics of a curved surface in motion relative thereto, said system comprising: a light source operative to scan a beam of light across a plurality of points on the curved surface for reflection therefrom; ranging means for measuring the distan

An inspection system adapted to measure optical characteristics of a curved surface in motion relative thereto, said system comprising: a light source operative to scan a beam of light across a plurality of points on the curved surface for reflection therefrom; ranging means for measuring the distance from the light source to the point being scanned and generating a ranging signal corresponding thereto; a photo detector disposed in a fixed positional relationship relative to a transverse direction to the motion of the curve surface and adapted to receive at least a portion of the reflected beam; controller means adapted to: (1) receive said ranging signal, (2) compute parameters of a light path from the source to the point on the surface being scanned such that at least a portion of the light following that path will be reflected onto the detector and (3) control the position of the light source so as to scan the beam along the computed path.