Optical distributor for room lighting

摘要

An optical distributor (10) is formed as a reflector with one or more sloping surfaces. The sloping surfaces have varying angles of inclination from a bottom edge (20) to a top edge of the reflector. The sloping surfaces may form a substantially pyramidal or conical frustum-shaped surface. The sloping surfaces may additionally or alternatively form a band of adjacent or contiguous faceted surfaces. The reflector is configured to receive light rays through an opening (32) in a first plane (30) and reflect light rays radially outward and upward at varying angles of reflection (8B) to a bottom surface of the first plane (30) in a manner that illuminates both the bottom surface of the first plane (30) and an area (40) below the first plane (30). The reflected light may illuminate the first plane (30) and the area (40) below in a substantially uniform manner.

主权项

1. A method for designing a pyramidal or conical frustrum-shaped optical distributor, comprising
receiving a first spatial dimension representing an installation distance below a first plane for the optical distributor; receiving a second spatial dimension representing a diameter of incident light through an opening in the first plane; receiving a third spatial dimension representing a starting point on the first plane to which light from the optical distributor is to be reflected; receiving a fourth spatial dimension representing an ending point on the first plane to which light from the optical distributor is to be reflected; receiving a fifth dimension representing a diameter or width of a bottom edge of the optical distributor to accept radiation from the incident light passing through the opening in the first plane to be spread to a diameter greater than the diameter of the opening in the first plane; receiving a number for how many faceted surfaces for the optical distributor are desired; and determining a width and an angle of inclination for each of the faceted surfaces that will reflect light to between the starting point and the ending point in a substantially uniform distribution.