| 摘要 |
PURPOSE:To branch and draw out effectively a part of the light propagated in the outside circumferential wall of a photoconductor rod by providing a hole in the radial direction of said rod and inserting an insertable and removable photoconductor for branching in said hole. CONSTITUTION:Solar light L is introduced into a photoconductor rod 1, and is propagated under repetition of reflection on the wall surface of the rod 1. A hole 2 extending in a radial direction is provided to the rod 1, and an insertable and removable photoconductor 3 for branching is provided in the hole 2. The forward end face 3' of the photoconductor 3 is inclined to the face at a right angle to the axis and the inclined face is used as a reflection mirror surface. Then, the light L' falling onto the face 3' is reflected by said face, and is divided in the conductor 3. The light L'' passing through the part except the incined face passes through the conductor part and is propagated as it is. The quantity of the light to be branched is adjustable by the insertion depth of the conductor 3. As the conductor 3 is inserted deeper, the quantity of branching is smaller, and is approximately 0 in the chain line position shown in the figure. |
