Patent ID: 8289635

Claim:
A method for fabricating an integrated optical device comprising the steps of: creating a wafer stack by stacking at least a top wafer carrying as functional elements a plurality of lenses, on at least one further wafer comprising further functional elements, and providing a sunshade plate as part of the integrated optical device by: providing a sunshade plate comprising a plurality of through holes, the through holes being arranged to correspond to the arrangement of the functional elements on the top wafer wherein the sides of the through holes are tapered and have an angle between 20-40Â° with respect to the normal of the sunshade plate; and stacking the sunshade plate on the top wafer, with the through holes being aligned with said main optical axes separating the wafer stack into a plurality of integrated optical devices, wherein corresponding functional elements of the top and further wafer are aligned with each other and define a plurality of main optical axes, each axis corresponding to one integrated optical device.