| 摘要 |
A lamp for producing a spectral distribution which is substantially identical to daylight color temperature. The lamp contains a filament which, when excited by electrical energy, emits radiant energy at least within the visible spectrum with wavelengths from about 400 to about 700 nanome- ters, a reflector body with a surface to intercept and reflect the visible spectrum radiant energy which is positioned within the reflector so that at least 50 percent of the vis- ible spectrum radiant energy is directed towards the reflector surface, and a coating on the surface of the reflector body from which the reflected radiance of each wavelength of vis- ible spectrum radiant energy directed towards the reflector surface when combined with the visible spectrum radiant energy not directed towards the reflector surface produces a total light output in substantial accordance with a specified formu- la.
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