| 摘要 |
A reflector having a cross-sectional shape in the form of a 7th order polynomial which, when used with an artificial source of illumination of predetermined geometry, projects a beam of illumination having uniform intensity within a given solid angle. The polynomial shape is especially selected to provide a reflected, defocused source image, whose size increases with increasing angular divergence of light rays within the beam to compensate for natural losses in illumination which would otherwise occur as a function of angular divergence of light rays from the source when used without the reflector.
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