Optics: measuring and testing – Refraction testing
Patent
1992-04-07
1994-04-12
Rosenberger, Richard A.
Optics: measuring and testing
Refraction testing
356365, 250225, G01N 2141, G01J 400
Patent
active
053030249
ABSTRACT:
There is provided a scintillometer for the measurement of the structure function constant and the inner scale of atmospheric refractive index fluctuations including a transmitter unit with a source emitting radiation. Included in the transmitter unit is a piece of birefringent material which splits the radiation into two displaced orthogonally polarized components. A receiver unit which substantially contains two detectors receives the two components of the radiation. The detectors are combined with polarizers in such a way that at least one detector has a preferred sensitivity to one polarization component and the apparent distance of the detectors in the plane perpendicular to the propagation direction approximately equals the beam displacement produced at the transmitter.
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R. G. Frehlich, Applied Optics 27 (1988), p. 2194.
Pham Hoa Q.
Rosenberger Richard A.
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