IRRADIATING APPARATUS Russian patent published in 1995 - IPC

FIELD: medical engineering. SUBSTANCE: this apparatus incorporates radiation source reflector, tube whose working end is secured to reflector and other end carries light guide for irradiating area to be treated, screen made in the form of shutter positioned downstream of reflector, and inverse mirror disposed downstream from screen for longitudinally moving along optical axis of reflector. Inverse mirror and reflector are made in the form of segments, each having reflecting surface and facing one another. Optical axis of light guide is displaced from axis passing through centers of segments towards side opposing radiation source reflector which is linked with light guide via inverse mirror. Screen may be provided with set of replaceable light filters. Inverse mirror may be have concave reflecting surface and positioned before reflector focus. Mirror focus can be adjusted inside light guide. Light guide may have light-dispersing head. Another embodiment of this invention includes radiation source reflector, tube whose working end portion is secured to reflector and opposite end portion carries light guide for irradiating area to be treated, screen made in the form of extensible shutter positioned downstream of reflector, image transmission system, and inverse mirror positioned downstream of screen for longitudinally moving along optical axis of reflector. Inverse mirror and reflector are made in the form of segments, each having reflecting surface and facing one another. Optical axis of light guide is displaced relative to axis passing through centers of segments off reflector. Radiation source reflector is associated with light guide via inverse mirror. Image transmission system incorporates two successively positioned inclined flat mirrors located downstream from inverse mirror for optical connection to light guide via reflector segments and inverse mirror. Screen may be provided with set of replaceable light filters. Image transmission system may have two inclined mirrors, one of which rests on support to provide optical link between radiation source and reflector. Inverse mirror may have concave reflecting surface and positioned downstream from reflector focus. Its focus can be adjusted inside light guide. EFFECT: more sophisticated design; more effective control of position, intensity and uniformity of light spot. 8 cl, 3 dwg