JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
Online ISSN : 1349-838X
Print ISSN : 0019-2341
ISSN-L : 0019-2341
CAD (Computer Aided Design) System of Specular Luminaire Reflectors for HID Lamps
Osamu MyodoMasao KarinoMakoto Yamanoshita
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1983 Volume 67 Issue 2 Pages 93-99

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Abstract

This CAD system consists of two stages. In the first stage, a shape for the reflector is designed automatically which provides a candlepower distribution by the reflector as close to a required distribution as possible within a range of dimensional limits. Many shapes for the reflector are usually designed depending on designing parameters which are already decided by the designer. In the second stage, a precise prediction of the candlepower distribution of the designed reflector is made, considering the luminance distribution on a lamp surface. The prediction is made for the shapes of the reflector which have adequate values of candlepower distribution and luminaire efficiency in the former stage.
The CAD system changes the design of luminaire reflectors by designers into the automatical design by computer, and provides us highly efficient reflectors and rapid design of the reflectors.

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