Space-based light-collecting illumination device

Abstract

To provide a device which is used for receiving solar light and transmitting the light to a remote area in cosmic space and enables light reception and transmission while making its efficiency as high as possible with a relatively simple structure.SOLUTION: A light condensing radiation device 100 used in cosmic space includes a light condensing lens unit 10, a radiation pipe 20, and an arm 30. The light condensing radiation device 100 is launched from the ground in a folded state and then is turned into a deployed state in the cosmic space by a restoring force of an elastic body.SELECTED DRAWING: Figure 10

Claims

1. A light-gathering device for use in outer space, A focusing lens unit that concentrates the received sunlight into a focal point, An irradiation tube is positioned such that one end of the aperture is designated as the entrance port and the other end as the irradiation port, and the focal point of the focusing lens unit coincides with the entrance port. The arm connecting the light-gathering lens unit and the irradiation tube, Equipped with, The aforementioned focusing lens unit has a focusing lens held by a foldable frame having a hinge portion. The condensing lens unit comprises a main lens which is a convex lens with a circular shape in plan view, and a plurality of auxiliary lenses which are convex lenses with a non-circular shape in plan view. Each of the auxiliary lenses is positioned around the main lens when the folding frame is unfolded, and is configured to focus sunlight incident on the incident surfaces of the main lens and each of the auxiliary lenses to the focal point of the main lens. A solar panel is placed between the auxiliary lenses or between the main lens and the auxiliary lenses, at least one of the two. A space-use light-gathering irradiation device characterized in that, after the folding frame is launched from the ground in a folded state, the folding frame unfolds in space due to the restoring force of an elastic body provided in the folding frame.

2. A light-gathering irradiation device for use in outer space, A focusing lens unit that concentrates the received sunlight into a focal point, An irradiation tube is positioned such that one end of the aperture is designated as the entrance port and the other end as the irradiation port, and the focal point of the focusing lens unit coincides with the entrance port. The arm connecting the light-gathering lens unit and the irradiation tube, Equipped with, The aforementioned focusing lens unit has a focusing lens held by a foldable frame having a hinge portion. After the aforementioned folding frame is launched from the ground in a folded state, the folding frame unfolds in space due to the restoring force of the elastic material provided in the folding frame. The elastic body is a torsion spring attached to the hinge portion, The space-gathering light-gathering device is characterized in that the torsion spring comprises a first torsion spring for deploying the foldable frame and a second torsion spring for changing the orientation of the light-gathering lens constituting the light-gathering lens unit.

3. The space-gathering light-gathering device according to claim 1 or 2, characterized in that the hinge portion is provided with a stopper for maintaining the deployed state by locking it when it reaches a predetermined angle after deployment.

4. It has an antenna and thrusters, The space-use light-gathering irradiation device according to claim 1 or 2, characterized in that it controls its own attitude in space by operating the thruster via remote control through the antenna.

5. The space-gathering light-gathering device according to claim 1 or 2, characterized in that the irradiation port has a tapered shape that converges toward the center.

6. The space-gathering light-gathering device according to claim 1 or 2, characterized in that the irradiation port has an inverse tapered shape that expands in the circumferential direction.

7. The space-gathering light-gathering device according to claim 1 or 2, characterized in that the irradiation port has a flattened shape.

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