| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical bus whose production is simple and which has high signal transmission efficiency. SOLUTION: The optical bus 100 where signal light is made incident from one end and emits from the other end, is provided with a optical transmission layer 2 which transmits the signal light from the one end toward the other end and a light shielding layer 4 which prevents interfusion of signal light between two adjacent optical transmission layers. The optical transmission layer 2 and the light shielding layer 4 are constituted by laminating them alternately, and a space is formed between the optical transmission layer 2 and the light shielding layer 4.
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