| 摘要 |
PURPOSE:To distribute light source light into plural pieces of luminous flux with high connection efficiency without causing variation in hue even when the spectrum width of the light source light is wide by reflecting the light from a light source by a concave reflecting mirror and forming an image of its reflected light on a light reception part provided concentrically centering on the light source. CONSTITUTION:A light emitting element such as a laser and a light emitting diode is used as the light source. The light from the light source is made incident on an optical fiber 1 as an optical transmission body from one end 19 and projected from its projection end. At such a time, the projection end 9 can be regarded as a light source as to the concave reflecting mirror 3. An assembly of optical transmission bodies like optical fibers is used for the light reception part 2. One-terminal sides 10 of the optical transmission bodies form an annular surface centering on the light source on the whole and serve as the light reception part for the reflected light from the concave reflecting mirror 3. The light from the light source 3 is reflected by the concave reflecting mirror 3 provided slantingly to the annular surface and the reflected light is converged and made incident on a place on said annular surface to form an image. The incidence and image formation position of said reflected light moves on the annular surface as the concave reflecting mirror rotates. |
