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. 28, 2017
Filed:
Feb. 09, 2015
Microsoft Technology Licensing, Llc, Redmind, WA (US);
Pasi Kostamo, Espoo, FI;
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
In making an optical component, one or more portions of a substrate's surface are patterned. At least a region of the substrate's surface is coated in negative photoresist, the region encompassing said portions. The negative photoresist becomes undevelopable when exposed to light. Light which forms a grating structure is projected over each of the portions. Light of substantially uniform intensity over the entirety of the region but for the portions, thereby leaving the negative photoresist outside of the portions undevelopable. The negative photoresist is developed so as to embody the grating structure in the photoresist covering the portions. The substrate's surface is patterned to impose the grating structure on the substrate's surface from the developed photoresist; the undevelopable photoresist inhibits patterning of the surface region outside of the portions. The optical component comprises the patterned substrate.