| 摘要 |
PURPOSE:To diffuse and radiate effectively and uniformly propagated light with simple constitution by providing many bar-like bodies each having an approximately triangular sectional shape in contact with a photoconductor in parallel therewith and radiating the light through said bar-like bodies. CONSTITUTION:Many bar-like bodies 3 are disposed around a photoconductor 2 in contact with the outside circumferential surface thereof and in parallel with the photoconductor 2. The light transmitted through a photoconductor cable 1 is radiated in the radial direction of the photoconductor 2 through the bodies 3 in the photoconductor part 2. More specifically. the luminous flux density in the photoconductor 2 decreases successively along the advance direction of the light but the contact area between the photoconductor and the bar-like bodies increases correspondingly and the light having approximately uniform illuninance is radiated from the head parts (b) of the bar-like bodies. The propagated light is effectively and uniformly diffused and radiated with the simple constitution in the above-mentioned way. |
