Patent ID: 9148221
Filing Date: 2015-09-29
Classification: H04B

Abstract:
1. A system for optical communication between environments having different pressures comprising: a structure separating the environments having a first low-pressure side and a second high-pressure side, said structure having an aperture formed therein extending from the first low-pressure side to the second high-pressure side, the aperture having a smaller diameter at the first low-pressure side and a larger diameter at the second high-pressure side with an intermediate shoulder intermediate between said smaller diameter and said larger diameter; a light pipe positioned in the aperture in said structure and conforming with the diameters thereof with a first end in communication with the first low-pressure side of said structure and a second end in communication with the second high-pressure side of said structure; a sensor in communication with the second high-pressure side of the structure to produce a sensor signal responsive to an environmental condition; transmitter electronics joined to said sensor to produce an electrical signal responsive to said sensor signal; a light source joined to said transmitter electronics and joined to said light pipe second end, said light source to produce an optical signal in response to said electrical signal from said transmitter electronics; an optical detector in communication with said light pipe first end to receive an optical signal; and receiver electronics joined to said optical detector to provide an output signal responsive to the optical signal received thereby.