| 摘要 |
PURPOSE:To attain miniaturization and to improve the performance of cooling by slanting a cooling plate in the opposite direction to the earth. CONSTITUTION:One surface 5a of cooling plate 5 is in parallel to the vertical line of the earth and on the surface, infrared-ray detector 4 is fitted. The other surface 5b of the cooling plate 5 faces to the universe space and slants to the vertical straight line of the earth in the opposite direction to the earth. Therefore, perpendicular 5c to surface 5b of cooling plate 5 slants at angle (alpha) in traveling direction 8' of infrared rays reflected by a mirror while opposing to the earth. Since reflecding plate 6 can be swung in the same direction that surface 5b of cooling plate 5 is slanted in, the length required to shield radiant heat 9 from the earth can be shortened. |
