Lamp Irradiator Assemblies

Our proven LIA's (Lamp Irradiator Assemblies) provide an instant solution to reliable cooling of UV lamps. LIA's also provide mounting and a highly efficient method of focusing UV energy on to the curing surface. Many engineers find that the most time consuming aspect of building a UV curing system is controlling lamp temperature and focusing UV energy on to the curing surface. Incorrectly maintaining lamp temperature severely degrades the performance and life of any UV lamp.

Irradiator Construction

These irradiators consist of a heavy-duty housing supporting a linear extruded heatsink and a reflective insert. The reflective material is in intimate contact with the heatsink extrusion allowing it to resist the heat-related yellowing that plague other non- heat-sink based designs. In the event this that insert becomes damaged it is easily replaced minimizing down time.

Our irradiators are designed specifically for each lamp size. They maintain optimum lamp operation temperatures on the lamp envelope, end seals and end-fittings. The irradiator forms an air cooling plenum, cooling the lamp end-fittings and not overcooling the lamp envelope.

Even Cooling

Efficient Cooling

Optimizing cooling efficiency in an LIA is achieved by using a heatsink-based reflector where the material has a high thermal conductivity and the design maximizes the effects of surface area and turbulence. Within reason, the more surface area the better the cooling. Also important is turbulence, because of the skin effect in cooling. A thin layer of air surrounding a cooling surface acts as a thermal insulator impeding the effect of forced air-cooling. This layer needs to be disrupted by turbulent airflow, which can be created by providing irregular fins and fin geometries.

Our LIA's offer:

• Longer lamp life.
• More UV energy to the curing target which improves your throughput.
• Two focus versions.
• Faster development time in implementing an UV curing project.
• No design or tooling investment required
• Reduced parts count.
• Improved quality and better UV cure results through consistent cooling.
• Flexible lengths: use for lamp arc lengths from 4 to 100 inches.

One of the most important features of our LIA's is the construction. This consists of a heavy duty extruded housing which contains an extruded reflector profile. Inside this reflector profile is a high UV reflectance metal insert, which conforms to this profile. In addition to being rugged, the extruded reflector provides a large mass, which dissipates heat evenly. It allows uniform cooling across the entire lamp length. AC fans with appropriate wiring and lamp mounting provisions are also included.

Two focus versions are available: