| 摘要 |
PURPOSE:To allow plural communications by stopping down the light superposed with plural color rays by lenses, passing this light through an optical fiber, casting this light to one point of a rectangular prism, and detecting the color rays separated and emitted by the angle in respective optical sensors. CONSTITUTION:The color light emitted by respective diodes of light emitting diodes 1, 7 is received in the slit lenses 2, 8 and is thereby condenses. The condensed light is passed through the optical fiber 3 and is cast to the rectangular prism 4 installed in the outlet. The color rays separated at the respective angles by the colors are made distinct by the annular filters 29 or linear filters 30 using the blue filters if the red is a main color in the case of use of two colors; for example, red and blue, at the boundary of the colors, and removing the blue intersected at the boundary by annular and wire-shaped filter. These rays are then passed through the optical fibers 5, 9 and are received in the optical sensors or optical color sensor. The rays are thereafter utilized. The plural communications are possible in this way. |
