Patent ID: 6843609

Claim:
An optical module, comprising: an optical semiconductor element; a mounting member having a mounting portion and a supporting face; a lens optically coupled to said optical semiconductor element, said optical semiconductor element and said lens being arranged on a predetermined axis; and a lens holding member having an end portion, another end portion, a side wall portion and an extending portion, said lens holding member being welded to said supporting face of said mounting member at said end portion, said extending portion having a holding face extending in a direction of said predetermined axis for securing said lens, said lens holding member, said lens and said mounting member sealing said optical semiconductor element, said side wall portion including a first outer surface extending from said end portion to a direction of said predetermined axis and a second outer surface extending from said other end portion in a direction of said predetermined axis, said first outer surface being located outside an outer reference surface and said second outer surface being located inside said outer reference surface, said outer reference surface extending in a direction of said predetermined axis to surround said mounting portion, wherein said fist and second outer surfaces are provided such that an electrode of a seam sealer apparatus is enabled to hold said lens holding member.