| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical sensor in which a reduction in the number of steps of ferrule processing and a reduction in the number of steps of optical fiber binding operations are realized by decreasing the number of expensive ferrule, and which can simply be mass-produced at lower cost. SOLUTION: This optical sensor is constituted by a first or second optical fiber for receiving or emitting lights into or from an optical system; an optical signal process circuit; a third or fourth optical fiber for relaying lights between the optical signal process circuit and the first or second optical fiber; a first or second 2-core holding part for tying up both side ends of the first or second optical fiber or tying up both side ends of the third or fourth optical fiber, to position relatively optical axes of these optical fibers; and a binding part which binds the first or second 2-core holding part and can simultaneously align the optical axis of each of the corresponding optical fibers.</p> |
