
US Patent Application No: 2001/0002,147
Number of patents in Portfolio can not be more than 2000
Detection of pitch variations in lenticular material
Stats
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May 31, 2001
Publication date -
Jan 19, 2001
filing date -
09/766,432
serial no -
ABAN
status
Importance
Abstract
A method of sensing the pitch or relative location of a lenticular lens on a sheet of transparent lenticular material of the type having a repeating pattern of cylindrical lenses on one side and a flat opposite side, comprising the steps of: forming a beam of light; focusing the beam of light into a spot smaller than the pitch of the cylindrical lenses onto the lenticular material; moving the lenticular material relative to the beam in a direction perpendicular to the axes of the cylindrical lenses to modulate the angle of reflection or refraction of the beam of light; and sensing the position of the modulated beam of light to determine the pitch or relative location of lenticular material to the focused spot.
First Claim
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