DYSPROSIUM IODIDE LAMP AND ITS USE IN PHOTOENGRAVING | Zendy

YANG YONG-XIANG | Zendy; Wang Guo-fu | Zendy

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DYSPROSIUM IODIDE LAMP AND ITS USE IN PHOTOENGRAVING

Author(s) -

YANG YONG-XIANG,

Wang Guo-fu

Publication year - 1974

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.23.13-2

Subject(s) - dysprosium , iodide , materials science , brightness , optics , optoelectronics , chemistry , physics , inorganic chemistry

The working principle, structure and characteristics of a dysprosium iodide lamp are described. It is a vapour discharge lamp containing a mixture of dysprosium iodide and halmium iodide. With a lifetime of 200 hours, its luminous efficiency is above 70 lumen/watt and its colour temperature 6000 K. Trial applications in photoengraving show that the dysprasium-iodide lamp, as compared with the carbon-arc lamp, has the virtues of higher brightness, smaller dimensions, and greater stability and cleanness. As a new type of light source it is expected to improve the art of photoengraving.

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