| 摘要 |
A fiber sheet including a first resin sheet having an adhesive layer on one side, first and second optical fibers wired on the adhesive layer of the first resin sheet so as to cross each other, and a plurality of spacers scattered on the adhesive layer of the first resin sheet. The fiber sheet further includes a second resin sheet attached to the first resin sheet so that the first and second optical fibers and the spacers are sandwiched between the first and second resin sheets. Preferably, each spacer is a spherical spacer.
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