Patent ID: 9013687
Filing Date: 2015-04-21
Classification: G01D,G01M,G01N,G01R,G01S

Abstract:
1. An automated method of testing an optical device, the method comprising: placing the optical device on or in close proximity to a transparent sheet; causing the optical device to emit light through the transparent sheet; analyzing, in a processing unit, a first amount of light detected by the optical device when a first surface intersects an optical axis of the optical device; and analyzing, in the processing unit, a second amount of light detected by the optical device when a second surface intersects the optical axis of the optical device, wherein the first and second surfaces have different reflectivities from one another and are located on a side of the transparent sheet opposite that of optical device; and determining in the processing unit whether or not the optical device passes a test based at least in part on analyzing the response of the optical device.