Prismatic lighting panel

Details Prismatic lighting panel Prismatic lighting panel

1976-06-30

1977-12-20

Wintercorn, Richard A.

Illumination

Light modifier

Refractor

350259, F21V 500

Patent

active

040644332

ABSTRACT:
A light-weight plastic lighting panel having recessed conical prisms arranged in such a way that their intersecting edges form equilateral triangles, all of whose sides lie along lattice lines. The side of each triangle has a length of 0.475 cm. (three-sixteenths of an inch), and the panel may have a weight of less than 1600 grams per square meter (5.2 ounces/square foot).

REFERENCES:
patent: 3038065 (1962-06-01), Franck et al.
patent: 3213751 (1965-10-01), Benjamin et al.
patent: 3829680 (1974-08-01), Jones

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