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:
Dec. 25, 2007
Filed:
May. 02, 2006
Tomas Unfors, Billdal, SE;
Tomas Unfors, Billdal, SE;
Unfors Instruments AB, Billdal, SE;
Abstract
A unit () with a length (L) is utilized in a device for indicating the position of an edge () of a first area () which is irradiated by an x-ray radiation source () in relation to an edge () of a second area, completely or partially coinciding with the first area, which second area is illuminated by a light source. The unit is provided with a first and second parts separated by a mark (), which parts are intended to extend inside the second area and outside the second area respectively. The unit () comprises x-ray radiation-indicating elements () that assume a first indication state in the presence of x-ray radiation () and a second indication state in the absence of x-ray radiation. The position indication can be determined by means of the said mark and indication states. The invention also relates to an arrangement and a method for the said position indication. The unit can have small external dimensions, and constitutes a unit that is considerably simplified and easy to handle, while retaining a high degree of accuracy.