Method for determining the MTF of a viewing window

Details Method for determining the MTF of a viewing window Method for determining the MTF of a viewing window

1984-02-27

1986-05-06

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

G01M 1102

Patent

active

045868174

ABSTRACT:
Method comprises producing a pattern of alternate light and dark areas along a particular path on the back surface of a viewing window, scanning the image of the pattern along the projected path with a photodetector in such manner as to produce an alternating image signal, and then deriving the value of MTF (modulation transfer function) from the image signal. The viewability of images transmitted through the viewing window can be then characterized by a combination of values of MTF and SR (specular reflection).

REFERENCES:
patent: 2816474 (1957-12-01), Powell
patent: 3733135 (1973-05-01), Diakides et al.
patent: 3904293 (1975-09-01), Gee
patent: 4076426 (1978-02-01), Gross et al.
Nagaoka et al., Japan Electronic Engineering, No. 85, Dec. 1973, pp. 48-52.
Nagaoka et al., National Technical Report, vol. 20, No. 6, Dec. 1974, pp. 756-774.
O. H. Schade, "A New System of Measuring and Specifying Image Definition," NBS Circular 526, Apr. 29, 1954.
O. H. Schade, Sr., "Image Quality A Comparison of Photographic and Television Systems," RCA Laboratories, Princeton, N.J., 1975, pp. 1 to 19 and 22 to 25.

Affiliated with

Also associated with

Rating

Method for determining the MTF of a viewing window does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining the MTF of a viewing window, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining the MTF of a viewing window will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1571924