초록

Apparatus for scanning a remote object with a radiation detector and which prevents narcissus, ghost and stray radiation effects by providing radiation blocking means positioned to intercept all but the desired paths between a remote object and the detector.

대표청구항 ▼

A scanner comprising: a rotatable member having a first reflecting surface, radiation being presented to the first reflecting surface from one of a plurality of different directions depending upon the rotational position of the rotatable member, the radiation received being reflected as a first beam

A scanner comprising: a rotatable member having a first reflecting surface, radiation being presented to the first reflecting surface from one of a plurality of different directions depending upon the rotational position of the rotatable member, the radiation received being reflected as a first beam along a first direction; a second member having a second reflecting surface and mounted to receive the first beam and to reflect the radiation as a second beam along a second direction; a third member having a third reflecting surface and mounted to receive the second beam and to reflect the radiation as a third beam; radiation detector means mounted to receive the third beam and to produce an output in accordance with the radiation received; and radiation blocking means mounted adjacent to both the first and second beams so as to block any radiation from reaching the detector means other than that reflected by the rotatable member from a desired one of the plurality of directions.