Patent ID: 8529140
Filing Date: 2013-09-10
Classification: G02B,Y10T

Abstract:
1. An apparatus for use in a parallel optical communications module for passively aligning an optics module of the parallel optical communications module with optoelectronic devices of the parallel optical communications module, the apparatus comprising: a leadframe having an upper surface and a lower surface; at least first and second protrusions disposed on the upper surface of the leadframe at first and second preselected locations, respectively; an array of optoelectronic devices secured to the upper surface of the leadframe at a third preselected location, wherein the third preselected location is preselected to have a particular positional relationship with respect to the first and second protrusions to enable the first and second protrusions to be used as fiducials during placement and positioning of the array on the upper surface of the leadframe; and an optics module mounted on the upper surface of the leadframe, the optics module having first and second openings formed in the optics module at first and second preselected locations, the optics module having a plurality of lenses disposed in the optics module at a third preselected location, wherein the third preselected location on the optics module is preselected to have a particular positional relationship with respect to the first and second openings formed in the optics module, and wherein the first and second protrusions are mated with the first and second openings, respectively, when the optics module is mounted on the leadframe, and wherein the mating of the first and second protrusions with the first and second openings, respectively, ensures that the plurality of lenses are in optical alignment with the array of optoelectronic devices.