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:
Feb. 27, 2007
Filed:
Nov. 13, 2002
Ib-rune Johansen, Oslo, NO;
Olav Solgaard, Stanford, CA (US);
Odd Løvhaugen, Oslo, NO;
Håkon Sagberg, Oslo, NO;
Henrik Rogne, Oslo, NO;
Dag Wang, Oslo, NO;
Ib-Rune Johansen, Oslo, NO;
Olav Solgaard, Stanford, CA (US);
Odd Løvhaugen, Oslo, NO;
Håkon Sagberg, Oslo, NO;
Henrik Rogne, Oslo, NO;
Dag Wang, Oslo, NO;
Sinvent AS, Trondheim, NO;
Abstract
The invention relates an optical displacement sensor element comprising two essentially flat surfaces () being separated by a cavity defined by a spacer () and the surfaces (), the distance between the surfaces being variable, wherein a first of said surfaces () is positioned on an at least partially transparent carrier () and being provided with a reflective pattern, the pattern constituting a pattern being shaped as a diffractive lens, and said second surface () being a reflective surface.