Relation between brightness, temperature, true temperature and colour temperature of tungsten. Luminance of tungsten

✍ Scribed by G.A.W. Rutgers; J.C. De Vos

• Book ID: 104162123
• Publisher: Elsevier Science
• Year: 1954
• Weight: 228 KB
• Volume: 20
• Category: Article
• ISSN: 0031-8914
• DOI: 10.1016/s0031-8914(54)80183-2

✦ Synopsis

The relation between brightness temperature, true temperature and colour" temperature for a tungsten ribbon filament lamp has been calculated.The calculations were based upon the measurements of the emissivity of tungsten by d e V o s. Results are given in a nomogram (fig. ) and in the C.I.E. chromaticity diagram (fig. ). The luminances L of a black body and a tungsten ribbon have been calculated as a function of temperature T. It was found that