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:
Sep. 09, 2014
Filed:
Jun. 13, 2012
Zhibin Wang, Beijing, CN;
Wei He, Beijing, CN;
Fumin He, Beijing, CN;
Hermes Microvision, Inc., Hsinchu, TW;
Abstract
An assembly for a charged particle detection device of high detection efficiency is described. The assembly comprising a metal grid for applying attractive potential to lure charged particles; a scintillator disc to absorb the energy from impinging charged particle and reemit the energy in form of light or photons; a light guide to transmit light or photons; and a photomultiplier tube (PMT) cohere with the end of light guide to receive light or photons from light guide and convert it into current signal. A light guide with a bullet-head-shaped front portion ensures total reflection of light propagating within the light guide. A frustum-cone-shaped scintillator disc releases the light that originally trapped in the scintillator disc due to the shape of scintillator.