L11798/L11799 Light Sources
Nov 2011Hamamatsu CorporationRequest Info
BRIDGEWATER, N.J., Nov. 11, 2011 — The L11798 and L11799 deuterium light sources introduced by Hamamatsu Corp. offer ultrahigh brightness and ease of use for a variety of ultraviolet applications, such as semiconductor inspection, film thickness measurement, UV-visible spectroscopy and environmental analysis.
They comprise an air-cooled H2D2 deuterium lamp head unit attached via cable to a power supply. The H2D2 is six times brighter than the company’s conventional L2D2 lamps. The improved brightness enhances equipment sensitivity and throughput. The air-cooled lamps are more convenient and easier to use than water-cooled light sources.
The L11798 series emits UV wavelengths at 115 to 400 nm, while the L11799 series emits at 160 to 400 nm. Both feature an aperture diameter of 0.6 mm and the choice of fan cooling or compressed air cooling. Other features include long service life of 1000 h, guaranteed, and good short- and long-term stability.
The deuterium lamps exhibit a maximum fluctuation value of 0.05% peak-to-peak (short-term stability) and maximum drift of ±0.3%/h (long-term stability).