Only one fitting for bironchigrams.
We present an algorithm that uses a square grid in a Ronchi test. We assume that the point coordinates of this pattern (termed a bironchigram) are affected by Gaussian errors. To calculate the optical path difference, we apply only one nonlinear least-squares fit to the dot coordinates. The relevant equations are deduced, and experimental results are shown.
Cordero-Dávila
A
A
Nu Ez-Alfonso
J M
JM
Luna-Aguilar
E
E
Robledo-Sánchez
C I
CI