An 
ultraviolet sterilizer for use during 
surgery is mounted in a base cabinet. The UV 
light source can be a 
laser, or an LED. An optical 
frequency multiplier can be used that outputs UV of less than 280 nm, or greater than 320 nm, to avoid burning the patient. A visible LED aiming light directs the UV light toward the 
surgery. A crosshair image can be projected to position the light.One lamp has a housing, a cavity, a 
handle, and an ocular plate to pass the UV and the aiming light. An articulated arm allows selective positioning of the lamp. Another lamp has a 
stylus, a 
handle, and a tip small enough for easy 
insertion into a 
small incision for 
arthroscopy. A 
fiber optic cable connects the UV and the aiming light to the lamp. Lenses or filters can be used with the 
fiber optic cable.An electronic power supply and a CPU connect to the UV and the aiming light sources. A keyboard inputs commands to the CPU. A sensor provides feedback.Another UV sterilizer is mounted on a ceiling of the operating room. A lamp has a housing with a cavity. Either a curved or a flat substrate is mounted in the cavity. 
Solid state UV elements are arrayed on the substrate, along with visible LEDs for aiming. Either a curved or a 
flat mirror is disposed behind the substrate. An ocular plate passes the UV and the aiming light, and protects the elements from damage. The ocular plate is a diffuser, a filter, or a 
fresnel lens.