Electric lamp and discharge devices – With gas or vapor – Having a particular total or partial pressure
Patent
1998-01-13
2000-09-05
Patel, Vip
Electric lamp and discharge devices
With gas or vapor
Having a particular total or partial pressure
313573, 313574, 313631, 313634, H01J 1720
Patent
active
061148075
ABSTRACT:
An arc lamp suitable for use as a high intensity light source in a projection system is described. A reflector is arranged to reflect the light produced by the arc into a directional light beam, secondary reflection means being arranged to direct part of the reflected beam so as to compensate for regions which are obscured by the electrodes. Means are provided within the light source to dissipate heat generated by the electrodes.
REFERENCES:
patent: 3113234 (1963-12-01), Schlegel
patent: 3644768 (1972-02-01), McRae
patent: 3881132 (1975-04-01), Miller
patent: 3934166 (1976-01-01), Stuart
patent: 3988626 (1976-10-01), Boudouris
patent: 4633128 (1986-12-01), Roberts et al.
Digital Projection Limited
Patel Vip
Russell Dean W.
Turton Michael J.
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