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. 17, 2018
Filed:
Feb. 03, 2014
The Boeing Company, Seal Beach, CA (US);
Mark Edward Eakins, Kirkland, WA (US);
THE BOEING COMPANY, Chicago, IL (US);
Abstract
A method of making a light guide for an aircraft passenger cabin is provided. The method includes determining, for each of a plurality of points on an interior surface of the cabin, a corresponding fixture angle from a light fixture receptacle, a distance, and an angle of incidence at the point. The method also includes calculating an incident light intensity for each of the plurality of points, assuming a light source that emits light of uniform intensity at each fixture angle. Additionally, the method includes calculating a relative ray strength from each fixture angle needed to produce a desired incident light intensity at each corresponding point, and disposing a plurality of light extraction features on a unit length of the light guide such that at least one of a number and a size of the light extraction features are determined based on the relative ray strength for that fixture angle.