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:
Nov. 20, 2018
Filed:
Aug. 14, 2015
Gentex Corporation, Zeeland, MI (US);
Kurtis L. Geerlings, Zeeland, MI (US);
Donald L. Bareman, Zeeland, MI (US);
David J. Cammenga, Zeeland, MI (US);
Niels A. Olesen, Zeeland, MI (US);
Henry A. Luten, Holland, MI (US);
William L. Tonar, Holland, MI (US);
GENTEX CORPORATION, Zeeland, MI (US);
Abstract
A laser system includes a buffer material at an entry surface of a substrate in which laser-induced channels are formed. The laser beam propagates through the buffer material and impinges the substrate with a central axis of the laser beam at an oblique angle of incidence. The buffer material has a refractive index that may be closer to that of the substrate than is the refractive index of the atmosphere, such as air, in which the laser system operates. The buffer material facilitates forming laser-induced channels at relative large angles with respect to the substrate surface by attenuating energy loss or other effects on the laser beam that are normally caused by the mismatch in refractive index between the environment and the substrate in the absence of the buffer material.