Moire interferometry is a 3D optical technique capable of measuring in-plane displacements (phase shift) with high sensitivity.
It is accomplished by projection lens for a grating on an object to two beams and measures the height by means of getting the phase information. It is good for various measurements like BGA Ball, Wafer Bump, PCB components (SPI, AOI) applications.
This module is optical system to do the moire interferometer measurement which is used to inspect of components in Lab.
|Measuring Lens||Projection Lens||Illumination|
Telecnetric to avoid any possilbe eeeor
mMagnification is up to objective size
Sometimes, Non-telecentric lens
Very low F/# to get hgh brightness
Magnification depends on measurement height
pProjection area 25~60mm
|Filer with halogen or Ultra power LED source|