Light can be transmitted between a light source and a light detector or target by using at least two mating connector sections of a light pipe connector. A protrusion of one of the connector sections is designed to be received within a receptacle of another of the connector sections, which can make the light pipe connector mechanically compliant. The two connector sections are fabricated from an optically transmissive material, and have optically reflective surfaces in orthogonal orientations to optically transmissive surfaces adjacent to the light source and the light detector. When the protrusion of one of the connector sections is engaged within the receptacle of another connector section, light can be transmitted through optically transmissive surfaces adjacent to a light source and a light detector, while the orthogonally oriented optically reflective surfaces direct light towards the light detector.