Patent ID: 9746167
Date: 2017-08-29
CPC Classifications: F21V,G01J,G02B,H05B,Y02B

Claim:
1. A light pipe device comprising: a first light pipe branch including a first light flux interface portion at a first-first end thereof and a second light flux interface portion disposed at a first-second end thereof; a second light pipe branch including a third light flux interface portion at a second-first end thereof and a fourth light flux interface portion disposed at a second-second end thereof; a bidirectional lens element disposed at one of the first-first end, the first-second end, the second-first end, or the second-second end; and an interface region coupled between the first light pipe branch the second light pipe branch, the interface region being further coupled to the bidirectional lens element, the interface region being configured to direct light propagating in the first light pipe branch out of the bidirectional lens element and into an ambient environment, the bidirectional lens element being configured to direct ambient light from the ambient environment into the interface region, the interface region being configured to further direct the ambient light into the second light pipe branch.