| 摘要 |
<p>A slide projector that is portable, easy to use and suitable for use by an individual, or individuals in the home. The slide projector comprises means in which to project an image perpendicularly from a slide onto a projection surface. In use, the projected image of the slide lies in a substantially planar surface. The slide is located in a rotating carousel which can be automatically, or manually rotated, thus providing accurate simulation of the orientation of stars and other celestial bodies at a specific date and time.</p> |
