Apparatus for automatically detecting and evaluating the charact

Apparatus for measurement of reflection density

Apparatus for measuring surface reflectance characteristics

Automatic optical measurement method

Calibration method and apparatus for optical scanners

Dual-laser voltage probing of IC's

Gloss gauge

Instrument for determining the distinctness of image of a paint

Measuring apparatus with transmitter and receiver optically coup

Method for calibrating a reflectometer containing black and whit

Method of detecting and evaluating photometric signals and devic

Method of determining the impurity concentration of impurity-dop

Methods and apparatus for detecting impurities in semiconductors

Multi-channel swept wavelength optical interrogation system...

Nulling optical bridge for measurement of changes in reflectivit

Optical intensity meter

Process and apparatus for determining the condition of a road su

Process and apparatus for measuring the brightness of mill-commi

Reflectivity/emissivity measurement probe insensitive to...

Representation of spatial-frequency data as a map