| 摘要 |
PROBLEM TO BE SOLVED: To enhance the luminance of projected sidereal images without increasing a sidereal projector. SOLUTION: The sidereal projector dividedly projects the starlit skies by a plurality of sidereal projection tubes P 1 to P 16 consisting of condenser lenses 1 guided by optical fiber bundles from light sources; projection original plates 2; and projection lenses 3, wherein a plurality of the light sources L 1 and L 2 are respectively arranged with respect to the sidereal projection tubes P 1 to P 16 on the Southern sky side and the Northern sky side. The light rays from the plurality of the light sources are once bundled to optical fiber bundles PF, and the images of the light sources are formed on the end surfaces of the optical fiber bundles PF and are thereafter branched to the plurality of the optical fiber bundles PF connected to the sidereal projection tubes. COPYRIGHT: (C)2006,JPO&NCIPI
|
