Keywords
Citation
Rigelsford, J. (2003), "Electric discharge lamp", Sensor Review, Vol. 23 No. 1. https://doi.org/10.1108/sr.2003.08723aad.014
Publisher
:Emerald Group Publishing Limited
Copyright © 2003, MCB UP Limited
Electric discharge lamp
Electric discharge lamp
Applicant: Stanley Electric Co. Ltd, JapanPatent number: EP1,227,511Publication date: 31 July 2002Title: High pressure electric discharge lamp
Keywords: Patents, Electrical discharge
This patent presents a high pressure electric discharge lamp adapted to utilize dielectric barrier discharges. The invention aims to provide a lamp structure and a lighting method with a significantly reduced starting voltage. This will lower the cost of the drive unit and alleviate the rigorous requirements for dielectric strength of the various components.
The lamp comprises an arc tube having a discharge space that contains at least a rare gas; and an outer tube airtightly surrounding the arc tube. The space between the arc tube and the outer tube is filled with at least one gas (Ne, Ar, Kr, Xe, F2, Cl2, Br2, I2 and N2) at pressure between 1.3 and 100 kPa. The type and the pressure of the gas contained in the space is selected so as to make the dielectric barrier discharge starting voltage in the space between the arc tube and the outer tube lower than the discharge starting voltage in the discharge space.