Double Grating Interferometer with Variable Lateral Shear
نویسندگان
چکیده
A modified Ronchi interferometer using two identical gratings is described. This instrument is very suitable for the measurement of small, zonal aberrations, since the shear can be changed continuously by rotating one grating with respect to the other, while the direction and magnitude of the tilt between the sheared wavefronts can be varied by adjusting the distances of the two gratings from the centre of the gaussian sphere.
منابع مشابه
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تاریخ انتشار 1997