Device for visually displaying luminous patterns
AssigneeSociete Cyberson
InventorStephan Chovan
Life of this patent
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Abstract
A multiplicity of preferably coherent light sources are disposed along a common axis and are separated from one another by interposed opaque shields in the form of disks of progressively increasing diameters transverse to that axis. Each source confronts an associated screen with an annular light-receiving zone, which (except in the case of the last screen) may be integral with the respective shields, illuminated by light from all the preceding sources. The light sources may be individually modulated by external signals, e.g. oscillations derived from sound waves, to provide a visual pattern thereof.
Claims9
A device for visually displaying luminous patterns, comprising:
- a multiplicity of n light sources radiating in a direction away from a predetermined observation point, said sources being spaced apart in said direction and located on a common axis;
- and
- screen means forming a plurality of light-receiving zones viewable from said observation point, said zones being spaced apart in said direction and staggered transversely thereto for illumination by light from different combinations of said sources,
- said screen means forming (n-1) opaque shields interposed between successive light sources, and centered on said common axis, said shields having widths transverse to said direction increasing with distance from said observation point, said zones being transversely offset from said shields and positioned for illumination by light from a number of said sources increasing with distance from said observation point, said zones including rings centered on said axis having inner and outer diameters increasing with distance from said observation point.
Dependencies are inferred from the claim text.