Patent ID: 9595553
Date: 2017-03-14
CPC Classifications: B29D,G02B,H01L,H04N,Y10T

Claim:
1. A method of fabricating optical devices, the method comprising: mounting a plurality of singulated lens systems over a substrate, wherein the plurality of singulated lens systems are physically unattached from one another at least at a time just prior to mounting them over the substrate; adjusting a thickness of the substrate below at least some of the lens systems to provide respective focal length corrections for the lens systems, wherein the substrate is composed of a plurality of layers of different materials from one another, and wherein adjusting the thickness includes removing part of the substrate such that the substrate has a total thickness that varies from one area of the substrate to another area of the substrate; and subsequently separating the substrate into a plurality of optical modules, each of which includes one or more of the lens systems mounted over a portion of the substrate.