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Lightguide device with outcoupling structures

  • US 10,126,482 B2
  • Filed: 07/26/2016
  • Issued: 11/13/2018
  • Est. Priority Date: 02/24/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • bonding a first body for a lightguide assembly to a second body for the lightguide assembly, the first body including a first light transmissive material which forms a first corrugation comprising a first plurality of facets, the second body including a second light transmissive material which forms a second corrugation; and

    prior to the bonding, applying to each of the first plurality of facets a respective optical coating of a plurality of optical coatings by applying an optical coating material to a side of a component framework that is to provide a plurality of component blocks used in formation of the first body;

    after the optical coating material is applied to the side of the component framework, forming the first body, including;

    forming the plurality of component blocks each from a respective portion of the component framework, wherein the plurality of component blocks each forms a respective portion of the first corrugation; and

    bonding the plurality of component blocks to one another; and

    wherein after the bonding, the plurality of optical coatings are disposed between the first corrugation and the second corrugation, wherein for each optical coating of the plurality of optical coatings;

    the optical coating extends across a surface of a respective one of the first plurality of facets, wherein, within a cross-section of the lightguide assembly, the optical coating is separated from another of the plurality of optical coatings.

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