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:
Jul. 09, 2024
Filed:
Feb. 25, 2019
Applicant:
Dispelix Oy, Espoo, FI;
Inventors:
Assignee:
DISPELIX OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); G02B 27/01 (2006.01); G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
G02B 5/1814 (2013.01); G02B 5/1823 (2013.01); G02B 5/1847 (2013.01); G02B 27/0172 (2013.01); G02B 27/4294 (2013.01);
Abstract
The invention relates to a selective diffractive grating and applications thereof. The grating comprised in a periodic alternating pattern first material having a first dispersion curve (n), and second material having a second dispersion curve (n) different from the first dispersion curve (n). According to the invention, the first and second dispersion curves (n−i, n 2) intersect each other at two or more different wavelengths (λλ).