Optics: measuring and testing – By light interference – Spectroscopy
Reexamination Certificate
2006-11-16
2008-11-04
Connolly, Patrick (Department: 2877)
Optics: measuring and testing
By light interference
Spectroscopy
C250S339070
Reexamination Certificate
active
07446878
ABSTRACT:
The present invention provides methods and apparatuses that can improve measurement accuracy in interferometers. The invention provides methods for determining digital compensation filters that measure a frequency response or responses to be compensated, and then determining a filter target response from the inverse of the frequency response or responses. A digital compensation filter can be determined from the filter target response using a discrete sum of cosines with a phase argument. The invention also allows other desired filter responses to be integrated into the filter target response before determining the digital compensation filter.
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Benz Zachary
Maynard John D.
Ridder Trent
ver Steeg Ben
Connolly Patrick
Grafe V. Gerald
Richey Scott M
TruTouch Technologies, Inc.
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