Gerald D. Thompson,Greg K. Thompson,Erin M. Thompson
申请号：
US12412139
公开号：
US08226295B2
申请日:
2009.03.26
申请国别(地区):
US
年份:
2012
代理人:
摘要：
In various exemplary embodiments, a targeting device providing a visible indication of an invisible beam is disclosed. The invisible beam, such as an x-ray beam, is emitted by a radiation source on a medical imaging system. The targeting device includes, for example, an illumination source to produce a visible beam and operate at one or more wavelengths. The illumination source, which is opaque to the x-ray beam and would ordinarily cause shadows on the imaging system, is arranged to be mounted outside of a field-of-view of the invisible beam. A beam reflector is mounted next to the illumination source. The beam reflector is fabricated from a material invisible to x-rays and is arranged to be mounted within the field-of-view of the invisible beam. The beam reflector redirects the visible beam produced by the illumination source such that the visible beam is parallel to the field-of-view of the invisible beam.
