Determination of the transfer function of an optical instrument

Details Determination of the transfer function of an optical instrument Determination of the transfer function of an optical instrument

1986-07-10

1988-09-20

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

G01M 1100

Patent

active

047721200

ABSTRACT:
For measuring the optical transfer function of an optical instrument having an input pupil, a device comprises a source of spatially coherent light for illuminating the pupil of the instrument. Two separate zones are isolated in the input pupil of the instrument by a system comprising a grating, a lens for forming an image and a spatial filter which eliminates the zero diffraction order. The two zones have a spacing which is in direct relation to the spatial frequency. The position and mutual spacing of the fringes are determined. A computer derives the transfer function from the measurements made for a plurality of pairs of zones.

REFERENCES:
Progress in Optics, vol. 5, 1966, "Instruments for the Measuring of Optical Transfer Functions" Morato.
Conference: Image Assessment and Specification, Rochester, N.Y. (20-22) May 1974, "Trends in the Development of OTF Measuring" Rosenburch.

Affiliated with

Also associated with

Rating

Determination of the transfer function of an optical instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determination of the transfer function of an optical instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of the transfer function of an optical instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1745418