Optical illusion-producing rotating device

Details Optical illusion-producing rotating device Optical illusion-producing rotating device

1979-02-08

1981-09-01

Pinkham, Richard C.

Undertaking

273DIG24, 428 8, 428913, A63J 500

Patent

active

042867800

ABSTRACT:
An illusionary device comprising an elongated body of predetermined outline having at least one portion thereof twisted about the longitudinal axis of the body. This twisted portion includes a surface which is modified and adapted so as to have an appearance of an axially moving, sinusoidal, optical wave pattern if said body is rotated. This includes a plurality of axially repeating features. Any one "feature" at a given axial location along the length of the twisted portion will appear to the viewer as varying periodically from a point, to a maximum for the feature, back to a point, and so on, as the body is rotated. Also, axially successive ones of the repeating features appear to the viewer as varying from a point to a maximum and back to a point over the length of each twist. The combined effect is such that the apparent axial movement of the wave pattern is enhanced when the body is rotated. The elongated body includes a center strip having a plurality of louvered fin members extending radially outward from either side thereof so that one axially repeating feature is each of the fin members and another axially repeating feature is the space between any adjacent fin members.

REFERENCES:
patent: 237026 (1881-01-01), Knauff
patent: 360000 (1887-03-01), Darnall
patent: 1216580 (1917-02-01), Levi
patent: 1976093 (1934-10-01), Raymond
patent: 2197615 (1940-04-01), Kelman
patent: 2341583 (1944-02-01), Tuve
patent: 2414378 (1947-01-01), Kelman
patent: 2887805 (1959-05-01), Engel
patent: 3513063 (1970-05-01), Sloane
patent: 3846212 (1974-11-01), Rodermund et al.
patent: 3964189 (1976-06-01), Belokin, Jr.
Wave Apparatus, A Catalogue of Scientific Instruments by L. E. Knott Apparatus Company, Boston, Mass. .COPYRGT. 1916, p. 108.
Wave-Motion Apparatus, Scientific Apparatus and Supplies by the Welch Scientific Company, Skokie, Ill. .COPYRGT. 1965, p. 330.

Affiliated with

Also associated with

Rating

Optical illusion-producing rotating device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical illusion-producing rotating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical illusion-producing rotating device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1672411