Device and method for testing the wave front quality of optical

Details Device and method for testing the wave front quality of optical Device and method for testing the wave front quality of optical

1985-10-25

1987-11-17

Willis, Davis L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356354, 356359, G01B 902

Patent

active

047071370

ABSTRACT:
A device and method for testing the wave front quality of an optical component. The device is a shearing interferometer having two gratings to split and recombine a wave front beam to form interference fringes. The pattern of the fringes provides a means for measuring collimation error, astigmatism, and coma present in the beam.

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patent: 4363118 (1982-12-01), Roach
patent: 4492468 (1985-01-01), Huignard et al.
Patorski et al., "Collimation Test by Double Grating Shearing Interferometer", Applied Optics, vol. 15, No. 5, pp. 1234-1240, 5/76.
Schmutz et al., "Integrated Imaging Irradiance (I.sup.3) Sensor: A New Method for Real-Time Wavefront Measuration, Proc SPIE, vol. 179, pp. 76-80, 1979.

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