Lens heatsink insert

A molding system comprising:

• a mold insert comprising:
• a body including an area with a recessed surface;
• and
• a plurality of heat sink elements coupled to the body,
• wherein:
• the recessed surface has different depths in a plurality of different regions of the mold insert;
• and
• the plurality of heat sink elements are configured to provide different thermal resistances in the plurality of different regions of the mold insert,
• wherein a thermal resistance of the mold insert including the body and the plurality of heat sink elements in a region with a higher recessed surface depth is lower than a thermal resistance of the mold insert in a region with a lower recessed surface depth such that the recessed surface of the body at the region with the higher recessed surface depth and the recessed surface of the body at the region with the lower recessed surface depth are in thermal equilibrium during a cooling process.

A method of molding an optical device, the method comprising:

• providing a mold insert, the mold insert comprising a body and a plurality of heat sink elements coupled to the body, wherein:
• the body including an area with a recessed surface;
• the recessed surface has different depths in a plurality of different regions of the mold insert;
• the plurality of heat sink elements are configured to provide different thermal resistances in the plurality of different regions of the mold insert;
• and
• a thermal resistance of the mold insert including the body and the plurality of heat sink elements in a region with a higher recessed surface depth is lower than a thermal resistance of the mold insert in a region with a lower recessed surface depth such that the recessed surface of the body at the region with the higher recessed surface depth and the recessed surface of the body at the region with the lower recessed surface depth are in thermal equilibrium during a cooling process;
• providing a melted material in the mold insert;
• allowing the melted material to cool down;
• and
• removing the optical device from the mold insert.