Focusing reflector

Details Focusing reflector Focusing reflector

1980-09-29

1982-08-17

Evans, F. L.

Stoves and furnaces

Stoves

Cooking

350103, 350299, 126439, G02B 508

Patent

active

043446736

ABSTRACT:
A focusing reflector comprises a sheet of transparent material such as acrylic or the like formed to have a smooth-surfaced upper face and a lower face with a modified corner cube geometry. The modified corner cube geometry includes a plurality of multifaceted reflective elements arranged in a hexagonal close pack relationship with each element being defined by three planar facets forming a pyramid-shaped structure. Each element has two of its facets oriented mutually perpendicularly, and the third facet is oriented with respect to the perpendicular facets at a predetermined angle other than ninety degrees for redirection of light incident upon the upper sheet face toward a prescribed focal zone. The angular orientation of the third facet of each element is a function of the location of the element with respect to the position of the focal zone, together with the desired size and shape of the focal zone.

REFERENCES:
patent: 2682807 (1954-07-01), Onksen
patent: 4120565 (1978-10-01), Rabl et al.
patent: 4160577 (1979-07-01), Berg

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