公开(公告)号：US06274986B1

公开(公告)日：2001-08-14

申请号：US09463055

申请日：2000-04-03

Applicant: Robin Devonshire ,  Timothy James Healey ,  David Andrew Stone ,  Richard Charles Tozer

Inventor： Robin Devonshire ,  Timothy James Healey ,  David Andrew Stone ,  Richard Charles Tozer

IPC: G05F100

CPC classification number: H01J61/822 ,  H05B41/2828 ,  H05B41/30

Abstract: An apparatus and method for applying short pulsed waveforms, on the order of 1 &mgr;s pulses at a frequency of about 5 kHz, to a discharge lamp, such as a low-pressure mercury/argon lamp, in order to shift the ratio of the intensities of two of the mercury lines, in particular the 254 nm and 365 nm lines, of which for a sinusoidal excitation signal the 254 nm line is predominant, towards the higher wavelength. This greatly increases the efficiency of a lamp using phosphors excited by these UV emissions, because of the reduced Stokes shift.

Abstract translation: 将用于大约5kHz的频率的1个脉冲脉冲的短脉冲波形施加到诸如低压汞/氩灯的放电灯的装置和方法，以便改变强度比 的两条汞线，特别是254nm和365nm线，对于正弦激励信号，254nm线是主要的，朝向更高的波长。 由于降低的斯托克斯偏移，这使得使用由这些UV发射激发的荧光体的灯的效率大大提高。