Patent ID: 9684010
Date: 2017-06-20
CPC Classifications: G01P

Claim:
1. An apparatus for detecting passage of a ballistic object in three-dimensional space through a plurality of thin light sheets, said apparatus comprising: a plurality of photo projectors wherein each of said photo projector is mounted on a side of a housing and generates a projection of light in a form of a thin light sheet, wherein said photo projectors are oriented substantially parallel and do not overlap, wherein said projections of light are oriented substantially parallel and do not overlap; one or more photo detectors for detecting a reflection of light generated by a ballistic object crossing the projections of light, wherein each said photo detector is mounted on said side of said housing and is positioned proximately to and oriented substantially unidirectional with one of said photo projectors, wherein the photo detector generates a data set indicating the detection of the reflection of light, wherein said ballistic object traverses substantially perpendicular to said projections of light and does not traverse substantially proximate to and in between said photo projectors and said photo detectors; wherein said photo projectors and said projections of light are stationary in relation to said ballistic object; one or more signal processors for receiving the data set from the photo detector, for generating velocity properties of the ballistic object, for distinguishing each said thin light sheet from each other said thin light sheet, and for analyzing the data set to determine direction of motion of the ballistic object; a receiver connected to the signal processor via a connection, wherein the data set identifying order in which said thin light sheets were crossed by said ballistic object is generated and output; and wherein the connection is a wireless connection.