Abstract: A container for accommodating a solar ray-collecting device comprises a cylindrical body and a transparent dome mounted on the body for accommodating therein the solar ray-collecting device. A fin for mounting the dome on the cylindrical body is unitarily attached to the lower opening end of the dome. The cylindrical body has therein a stand for carrying thereon the solar ray-collecting device. The lower end of the cylindrical body is cut off along the slanted surface of the roof.

Abstract: A container for accommodating a solar ray-collecting device comprises a cylindrical body and a transparent dome mounted on the body for accommodating therein the solar ray-collecting device. A fin for mounting the dome on the cylindrical body is unitarily attached to the lower opening end of the dome. The cylindrical body has therein a stand for carrying thereon the solar ray-collecting device. The lower end of the cylindrical body is cut off along the slanted surface of the roof.

Abstract: A mechanism for positioning the light receiving end of an optical conductor cable at the focal position of a lens comprises an optical conductor cable supporting member for supporting an optical conductor cable, and a fixing device for fixing the light-receiving end of the optical conductor cable to the cable supporting member. The fixing device comprises a cap nut provided with a slit through which the optical conductor cable is inserted in the direction of the optical axis, a male screw threaded on the cable supporting member and engaged with the cap nut, and a collar portion formed on the outer circumference of the optical conductor cable at the light-receiving end thereof.

Abstract: A lens-holding apparatus used for holding a hexagonal lens and for fixing the light receiving end of an optical conductor at the focal point of the lens includes a frame body having a hexagonal portion on at least a part thereof, a hexagonal lens tightly inserted into the hexagonal portion, and an optical conductor cable fixing mechanism for fixing the light-receiving end of the optical conductor at the focal point of the lens on another portion of the frame body. The hexagonal portion comprises six side surfaces, every other one of which has two slits formed symmetrically in relation to the center line of each side surface in the longitudinal direction for mounting the lens thereon and a tongue piece formed between both slits. The lens is tightly inserted into the hexagonal portion and held therein by means of a tongue piece for pressing the lens.

Abstract: A light ray radiation stand comprises a foundation, one or more deformable flexible conduits vertically installed on the upper part of the foundation and an optical conductor cable holding means mounted on the tip end portion of each conduit. The optical conductor cable transmits the light rays therethrough and emits the same from the end portion.