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:
Jun. 16, 2009
Filed:
Mar. 22, 2004
Applicant:
Björn Cederström, Enskede, SE;
Inventor:
Björn Cederström, Enskede, SE;
Assignee:
Sectra Mamea AB, , SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21K 1/06 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
For reducing absorption in a refractive element, the present invention relates to a refractive element (), suitable for refracting x-rays, comprising a body with low-Z material having a first end adapted to receive rays emitted from a ray source and a second end from which the rays received at the first end emerge. The refractive element comprises columns of stacked substantially identical prisms (). The invention also relates to lens element.