The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1979
Filed:
Nov. 16, 1977
Christian Mayeux, Paris, FR;
Compagnie Generale de Radiologie, Paris, FR;
Abstract
A radiological apparatus, especially for the examination of objects by tomographic scanning, and equipped with a plurality of X-ray detectors. Each detector includes a scintillator crystal which is coupled to a photomultiplier by a light collector. The light collector is shaped in such way that all or a substantial majority of the light emitted by the scintillator crystal is reflected into the photomultiplier. In particular, the surface of the collector is made reflecting and the various portions of the reflecting surface are configured to reflect light emerging from a corresponding crystal face in a direction which misses the scintillation crystal and which permits entry in the photomultiplier tube. Various embodiments are presented wherein the surface is composed of circular, parabolic and polygonal cylinders.