System and method for obtaining wide screen Schlieren photograph

Details System and method for obtaining wide screen Schlieren photograph System and method for obtaining wide screen Schlieren photograph

1978-02-09

1979-02-13

Griffin, Donald A.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250237G, 356129, G03B 2900, G02B 530, H01J 314

Patent

active

041392914

ABSTRACT:
A system for use in Schlieren photography including a large grating, a viewing screen adjacently related to the large grating, a small grating disposed in spaced relation with the large grating, a transparent retainer for confining a transparent medium between the gratings, and optics for imaging the small grating on the large grating including a light source and optically aligned lens for projecting a beam of light along axes extending through the small grating and striking the large grating, subsequent to passing through the medium for thus forming on the screen a Schlieren image of striations resulting from distortions of light rays produced by the medium, and a camera for photographing the Schlieren image projected on the large screen.

REFERENCES:
patent: 2541437 (1951-02-01), Prescott
patent: 2636415 (1953-04-01), Zobel
patent: 2805599 (1957-09-01), Pajes
patent: 2977847 (1961-04-01), Meyer-Arendt
patent: 3897136 (1975-07-01), Bryngdahl
Nov. 1949, Journal of the Optical Society of America, vol. 39, No. 11, pp. 907-908.
Jan. 1950, The Review of Scientific Instruments, vol. 21, No. 1, pp. 3-6.
1965, Journal of Scientific Instruments, vol. 42, pps. 607-610.
May 1963, Scientific American, Moire Patterns, pp. 53-62.

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