PORTABLE STRUCTURED LIGHT MEASUREMENT MODULE/APPARATUS WITH PATTERN SHIFTING DEVICE INCORPORATING A FIXED-PATTERN OPTIC FOR ILLUMINATING A SUBJECT-UNDER-TEST

A surface measurement module for 3-D image acquisition of a subject-under-inspection. The module having: (a) a casing to house a pattern shifting device having a fixed-pattern optic through which light from a light source is passed, an output of the pattern shifting device being directed at a polari...

Full description

Saved in:
Bibliographic Details
Main Authors LAU, DANIEL, L, BELLIS, MATTHEW, W, HARA, HIDEO
Format Patent
LanguageEnglish
French
German
Published 16.11.2016
Subjects
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:A surface measurement module for 3-D image acquisition of a subject-under-inspection. The module having: (a) a casing to house a pattern shifting device having a fixed-pattern optic through which light from a light source is passed, an output of the pattern shifting device being directed at a polarizing beam splitter and the polarized output of the splitter directed through a lens assembly comprising at least one lens element; (b) a reflector to direct the polarized output exiting the lens assembly, to illuminate a surface of the subject-under-inspection; (c) a scattered light illumination off the surface is directed back through the lens assembly for capture by an image sensor; and (d) the casing also housing the polarizing beam splitter, the lens assembly, and the image sensor. The output of the fixed-pattern optic comprises a multi-frequency pattern. The pattern shifting device may be a linear or rotating type.
Bibliography:Application Number: EP20130880242