| 摘要 |
PURPOSE:To realize bidirectional type optical communication multiplex transmission equipment consisting of one transmission path by reflecting light emitted from plural light transmission sources with different colors on plural corresponding transmission half mirrors, and introducing them to an optical fiber by a collimator lens as parallel beams. CONSTITUTION:The bidirectional type optical communication multiplex transmission equipment is equipped with light emitting elements 11, 12,..., 1n, the transmission half mirrors 21, 22,...2n, a reception half mirror 3, a diffraction grating 4, a CCD 5, and the collimator lens 6, and is connected to opposite bidirectional type optical communication multiplex transmission equipment 8 via the optical fiber 7. The light emitting elements 11, 12,..., 1n emit the light with different colors for transmission. The reception half mirror 3 reflects reception light made incident passing the collimator lens 6 via the optical fiber 7 from the opposite device 8 advancing to a diffraction grating 4. Reception data of multiplex communication discriminated by every color can be obtained from the output of a CCD 5 consisting of projections 201,..., 20n by 1st-order light and projections 211,..., 21n by 2nd-order light. |
