Flood Exposure Source, 1000 W Hg(Xe), 6 x 6 in., ± 2.5°, 220 - 260 nm

The 92531 Flood Exposure Source is a 1000 Watt source for the deep UV (220 - 260 nm) spectral range. DUV sources run an Hg(Xe) lamp, use a UV grade fused silica lens (which transmits down to 200 nm), and have the appropriate dichroic filters. This source is ideal for deep ultraviolet studies below 260 nm. This illuminator irradiates samples with a 6.0 inch x 6.0 inch (152 mm x 152 mm) illumination plane with a ± 2.5° collimation angle. Typical output is 8.4 mW cm-2. An efficient ellipsoidal reflector, coated with enhanced Rhodium for DUV collects up to 70% of the arc lamp output. A 45° primary dichroic mirror spectrally reflects the light after passing through a proprietary design beam homogenizer. The homogenizer, or optical integrator, is similar to a compound fly's eye. It scrambles the arc lamp's non-uniform irradiance to produce many diverging beams. These diverging beams overlap at the collimating lens to produce a highly uniform, collimated beam at the work plane.