What question did this study set out to answer?

The aim is to derive expressions for speckle motion under specific geometric and optical conditions.

Speckle Movement in Laser Refraction. I. Theory

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Theory explores speckle motion effects in laser refraction, indicating potential ametropia measurement methods.

The aim is to derive expressions for speckle motion under specific geometric and optical conditions.
Geometrical evaluation of optical path lengths
Analysis of cylindrical, diffusing drums
Calculation of speckle velocity from known apparatus characteristics
Derivation of expressions for the plane of stationarity
Establishment of apparent speed of speckle motion
Calculation of observer ametropia based on speckle velocity

W. N. Charman (1979) studied this question.

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