Education and demonstration – Science – Astronomy
Patent
1994-10-12
1997-07-22
Donnelly, Jerome
Education and demonstration
Science
Astronomy
353 30, 353 28, G09B 2700
Patent
active
056498276
ABSTRACT:
A system capable of drawing a constellation picture over actual stars in the sky in a superimposed manner therewith. A screen, which allows light from outside the screen to pass, is stretched up above the ground. A laser beam scanner is located on the ground to project and scan a laser beam onto the screen. The laser beam is emitted from the ground with such a power that makes the reflection light from the screen visible from the ground when the laser beam is being scanned onto the screen. Thus, an image of the constellation picture is visible together with their actual constituent stars in the sky, in a superimposed manner. A novel tool is provided which is effective for education, study and observation of constellations and heavenly bodies.
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Donnelly Jerome
Hitachi , Ltd.
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