Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stek Co LtdfiledCriticalStek Co Ltd
Priority to SG10201803544VpriorityCriticalpatent/SG10201803544VA/en
Publication of SG10201803544VApublicationCriticalpatent/SG10201803544VA/en
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(AREA)
Abstract
OF DISCLOSURE A boundary detector detect sa boundary between a transparent plate and a frame . T he boundary detector includes a light source, a shield and two beam - adjusting units. T he light source emits an original beam. T he shield blocks secondary reflected beam and slits the original beam into a 5 middle incident beam and two lateral incident beams. T he middle incident beam gets reflected from the transparent plate and becomes a middle reflected beam. T he lateral incident beams get reflec ted from two lateral portions of the frame and become two lateral reflected beam. T he beam - adjusting units direct the lateral incident beams . T he intensity of the 10 middle reflected beam is different from that of the lateral reflected beams so that the bou ndary is detected. [Fig. 3]
SG10201803544V2018-04-272018-04-27Boundary detector of an optical inspection machine
SG10201803544VA
(en)