| CPC G02B 7/09 (2013.01) [G02B 7/025 (2013.01); G06K 7/10722 (2013.01); G06K 7/10881 (2013.01); G06K 7/1413 (2013.01); G06K 2007/10524 (2013.01)] | 20 Claims |

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1. An imaging unit, comprising:
a housing that comprises an inner surface, wherein the inner surface of the housing defines a lens channel, and wherein the inner surface of the lens channel defines:
a helical step that protrudes outwardly from the inner surface into the lens channel, wherein the helical step is angled at a first predetermined pitch;
a first glue pocket, in the lens channel, which extends from the inner surface of the lens channel to a top surface of the housing; and
a second glue pocket opposite to the first glue pocket, in the lens channel, which extends from the inner surface of the lens channel to a bottom surface of the housing, wherein the first glue pocket is at an offset from the second glue pocket along a first lateral axis of the housing based on the first predetermined pitch of the helical step.
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