| 摘要 |
The present invention relates to an optical waveguide having a plurality of independent optical paths, and an optical gas sensor using the same, wherein, in a structure in which an optical structure using a plurality of three-dimensional oval mirrors uses, in common, a first focal point of the plurality of three-dimensional oval mirrors and comprises a light source at the first focal point and an optical sensor unit at each second focal point or comprises the light source at a second focal point of any one of the plurality of three-dimensional oval mirrors and the optical sensor unit at a second focal point of each of the other three-dimensional oval mirrors, predetermined first and second oval mirrors are arranged such that virtual reference lines of the first and second oval mirrors have a predetermined angle to improve optical efficiency, thereby improving optical efficiency by making an optical path long and concentrating incident light without a separate artificial structure. |
