Arc lamp lightsource module

An arc lamp module, comprising:

• a removable lamp unit including a CERMAX-type arc lamp attached to two radial electrode heatsinks that are in turn disposed in an insulating sleeve housing;
• a chassis including a catch and a clip providing for a secure locking down of the removable lamp unit, and further including an igniter to power said arc lamp;
• a single fan and an air plenum disposed in the chassis and providing for a cooling airflow that is split between said igniter and said two radial electrode heatsinks;
• a pair of machine screws that provide electrical contact to each of the two radial electrode heatsinks and having crowned heads with a smooth contact surface;
• a printed circuit board (PCB) with springboard cutouts and electrical pads providing for a spring-pressure electrical contact between said igniter and said arc lamp through the pair of machine screws;
• an electrical interlock switch mounted to a corresponding springboard cutout on the PCB that provides for an interruption of electrical power from said igniter when the removable lamp unit is removed from the chassis;
• a mounting tab disposed on the chassis and providing for the support of a monocle arm and an optical piece suspended directly in front of said arc lamp;
• a non-conducting plate with apertures positioned to enclose a portion of the chassis and cover said igniter without causing electrical interference to said igniter and providing for circulation of air about said igniter;
• an aluminum plate joined to the chassis and providing for heatspreading;
• and
• a pair of fulcrum knobs on one side of the removable lamp unit and positioned adjacent to the chassis to provide for a rolling action of said housing during removal of the removable lamp unit from the chassis.