BRIDGEWATER, N.J. Hamamatsu Corp.'s L2859 and L5662 UV light sources are optimized for use in systems that cure optical and electronic parts and optical fiber coatings, as well as in those used for sealing liquid crystals, fixing coil windings, drying UV-activated ink and achieving light-source excitation.
The UV sources deliver radiated intensity as high as 3 W/cm2. They combine a quartz light guide that has high UV transmittance with a quiet mercury-xenon lamp and high-efficiency optical systems. They require no optical alignment, because of the minimum arc movement of the mercury-xenon lamps.
The light sources exhibit little electrode fatigue and thus solve one of the most common problems encountered with conventional UV lamps, according to the company. The sources have an average operating lifetime of more than 3,000 hours.
The UV reflectivity of the reflecting mirror is greater than 90 percent and produces a spectral distribution that is extremely high in the UV region, but low in the heat-producing visible and infrared regions, Hamamatsu said.
External control functions include on/off and shutter open/close, which makes the sources easy to use on production lines, and the lamp and power supply are integrated in a compact unit for easy handling.
Pricing of both the L2859 and L5662 starts at $5,000, depending on configuration. They are available for delivery in two to four weeks.
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EETInfo No. 626