SYSTEM AND METHOD FOR MEASURING REFLECTED OPTICAL DISTORTION IN CONTOURED PANELS HAVING SPECULAR SURFACES

摘要

A system for measuring reflected optical distortion in a contoured panel having a specular surface includes a conveyor for conveying the panel in a first direction, at least one display projecting a preselected multi-phase non-repeating contrasting pattern, and at least one camera, each one of the cameras uniquely paired with one of the displays. The system may also include a control programmed to execute logic for controlling each of the cameras to acquire the desired images, and logic for analyzing and combining the data acquired by the cameras to construct a definition of the surface of the panel, and logic for performing one or more optical processing operations on the surface data to analyze the optical characteristics of the panel.

主权项

1. A system for measuring the optical characteristics of a curved panel having a specular surface, the panel having a first dimension and a second dimension, wherein the panel is curved at least about one or more axes of curvature which are generally parallel to the first dimension, the apparatus comprising:
a conveyor for conveying the panel in a first direction generally parallel to the first dimension of the panel; at least two displays, each display projecting a preselected contrasting pattern, at least two cameras, each one of the at least two cameras being uniquely paired with one of the displays, wherein each display and camera pair are mounted in a spaced-apart relationship a known distance and angle from the surface of the panel such that the camera detects the reflected image of the pattern projected on the surface of the panel from its associated display, and wherein each of the display and camera pairs are spaced apart from each other at least in a second direction across the second dimension of the panel such that each camera detects the reflected image of the pattern projected on the surface of the panel from only its associated display, and wherein the patterns detected by the cameras together cover the entire surface in the direction of the second dimension of the panel; and a programmable control including at least one processor programmed to execute logic for controlling each of the cameras to acquire at least one image of the reflected pattern of the associated display on the panel as the panel is conveyed across the path of the projected pattern in the first direction, logic for analyzing and combining the data acquired by the cameras to construct surface data representative of the surface of the panel, and logic for analyzing the data representative of the surface of the panel to determine optical characteristics of the panel.