| CPC G02B 1/02 (2013.01) [G02B 3/00 (2013.01)] | 19 Claims |

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1. An optical lens, comprising:
a first transparent portion;
a second transparent portion;
an opaque metal barrier separating the first transparent portion from the second transparent portion; and
a transition zone between the opaque metal barrier and the first transparent portion;
wherein;
the opaque metal barrier is bonded directly to the first transparent portion and the second transparent portion via aluminum-oxide (Al—O) bonds; and
the transition zone comprises the Al—O bonds.
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