Patent ID: 7158207

Claim:
A motion picture film projector comprising: a lamp house section comprising a lamp bulb and a reflector; a head section located in front of the lamp house section, the head section comprising a shutter, an aperture, and a film movement system; and an optical member located proximate a junction between the lamp house section and the head section, wherein the optical member comprises infrared filtering coatings on both a front side and a rear side of the optical member, and wherein the lamp bulb is aligned generally horizontally, wherein the reflector has a rear aperture with a portion of the lamp bulb extending therethrough, wherein the rear aperture is larger than a center outer diameter of the lamp bulb, wherein the lamp bulb and the reflector are sized and shaped such that an operator looking rearward from a front side of the lamp bulb and reflector, and looking generally coaxially relative to a center longitudinal axis of the lamp bulb, can see a general ring shaped gap between the reflector and the lamp bulb when the lamp bulb is aligned relative to the reflector.