Planetarium and projection apparatus for same

Details Planetarium and projection apparatus for same Planetarium and projection apparatus for same

1993-11-23

1996-02-20

Mancene, Gene

Education and demonstration

Science

Astronomy

353 94, G09B 2700

Patent

active

054924758

ABSTRACT:
A planetarium has a console, a host computer, and a plurality of mutually separate and independent projection apparatus for projecting a star field, the sun, moon and planets. Each projection apparatus incorporating a high performance CPU. Time and date and viewer coordinates inputted by the console are transmitted to the host computer. The host computer computes the Julian calendar date, and transmits the results to a plurality of the high performance CPUs in parallel. Each high performance CPU calculates in parallel data relative to the positional orientation of the projection apparatus which incorporate the high performance CPU in accordance with data transmitted from the host computer. The high performance CPU controls the positional orientation of the corresponding projection apparatus based on the results calculated.

REFERENCES:
patent: 3571954 (1971-03-01), Frank
patent: 4639224 (1987-01-01), Maejima et al.

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