Patent ID: 6301035
Filing Date: 2001-10-09
Classification: H01L,H04B

Abstract:
An infrared transceiver for a bi-directional optical data transmission of directed IR beams through the atmosphere, said infrared transceiver comprising: a housing (3) including an infrared input/output (IO) defining a common plane (CP) facing the atmosphere through which said IR beams pass, said infrared transceiver further comprising a stack (S) mounted in said housing and defining an optical axis (OA) extending perpendicularly to said common plane (CP), said stack (S) comprising in the following order a carrier (5) remote from said common plane (CP), an integrated circuit (6) mounted on said carrier, an IR detector chip (8) secured to said integrated circuit (6) coaxially to said optical axis and facing said common plane, an emitter chip (10) bonded centrally to said detector chip coaxially to said optical axis and facing said common plane (CP) so that said emitter chip (10) is closest to said common plane (CP), an optical lens (2A, 2A') positioned in said housing (3) coaxially to said optical axis (OA) between said stack (S) and said common plane, and a reflector (13) surrounding said stack (S) and said lens (2) in said housing coaxially to said optical axis for reflecting incoming and outgoing IR beams (14, 15).