Patent ID: 9625123
Date: 2017-04-18
CPC Classifications: F21V,F21Y,G02B

Claim:
1. A method of making a lens assembly, comprising: providing a lens member having an outer surface and an inner surface, the outer surface being curved to define an optical axis that intersects the inner surface; attaching a dichroic reflector to at least a portion of the outer surface, the dichroic reflector being configured to reflect LED light originating from a given source point in a reference plane proximate the inner surface to a given image point in the reference plane; removably bonding a phosphor layer to at least a portion of the inner surface, the phosphor layer comprising one or more first portions that cover one or more first portions of the inner surface and one or more second portions of the inner surface, the given image point being disposed proximate the one or more first portions of the inner surface and the given source point being disposed proximate the one or more second portions of the inner surface; and patterning the phosphor layer to expose the one or more second portions of the inner surface such that light propagates from the source point to the dichroic reflector without passing through the phosphor layer.