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US07436934B2 Collimator with adjustable focal length 有权
准直器具有可调焦距

Collimator with adjustable focal length
摘要:
A collimator is provided with an adjustable focal length, particularly in X-ray testing systems, comprising an outer part with a conical inner surface and with a inner part having an conical outer surface, which are connected to one another at a fixed distance, as well as with at least one cone sliding part situated between the inner part and outer part in a manner that enables it to move.
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