Grating-film rainbow-producing laminar device

Details Grating-film rainbow-producing laminar device Grating-film rainbow-producing laminar device

1986-03-28

1988-08-23

Arnold, Bruce Y.

G02B 518, B44F 100

Patent

active

047657243

ABSTRACT:
A grating-film iris-producing laminar device has one or more substrates and one or more sheets of two-dimensional grating films, wherein the sets of grooves on the grating films intersect at a selected angle, hence a large number of light-passing holes are formed. The device is constructed with the grating films fixed to the substrates and produces color patterns when it is positioned before any non-monochromatic light source. The two-dimensional grating films can be replaced by two or more sheets of one-dimensional grating films with the grooves on them to intersect at the selected angle.

REFERENCES:
patent: 734134 (1903-07-01), Porter
patent: 4009939 (1977-03-01), Okano
patent: 4604329 (1986-08-01), Reber
McGraw Hill, Encyclopedia of Science and Technology, vol. 4, pp. 151-152, Jul., 1973.

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