Three dimensional display apparatus

Details Three dimensional display apparatus Three dimensional display apparatus

1988-03-08

1989-11-14

Brigance, Gerald

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340700, 364521, G09G 306

Patent

active

048810681

ABSTRACT:
A 3-D visual display apparatus. A sealed chamber having one or more walls transparent to visible light contains a gas having a first excited state and a second excited state which second excited state relaxes with the emission of visible light. A first laser source excites a small first volume of the gas to the first excited state and a second laser source excites a second volume, which is a small portion of the small first volume, to the second excited state which relaxes to emit visible light in all directions from the small second volume. This small light emitting volume appears as a small spot of light. Rapid movement of the two lasers permits the creation of other light emitting spots quickly enough to produce what appears to the human eye as a 3-D display. By proper choice of gases and lasers, visible light in all colors can be emitted from the spots to produce a 3-D color display. By changing the distribution of illuminated spots as time progresses, the objects simulated in the display can be caused to move.

REFERENCES:
patent: 3789397 (1974-01-01), Evans
patent: 3940748 (1976-02-01), Carson
patent: 4023158 (1977-05-01), Corcoran
patent: 4041476 (1977-08-01), Swainson
patent: 4288861 (1981-09-01), Swainson et al.
patent: 4333165 (1982-06-01), Swainson et al.

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