Heat dissipation structure for ellipsoidal lamps

Details Heat dissipation structure for ellipsoidal lamps Heat dissipation structure for ellipsoidal lamps

2007-04-17

2007-04-17

Husar, Stephen F (Department: 2875)

Illumination

Light source and modifier

Ionized gas or vapor light source

C362S294000, C362S373000, C362S580000

Reexamination Certificate

active

10939371

ABSTRACT:
A heat dissipation structure for an ellipsoidal lamp to provide an improved cooling effect for the ellipsoidal lamp has a redesigned shape and installing location for the blower duct that extends the outlet thereof to the edge of effective light beam zone of the ellipsoidal lamp so that the outlet is most close to the hot spots that require heat dissipation. Airflow ejected from the blower duct also is prevented from scattering to improve heat dissipation effect. The outlet may have a guiding plate located therein to channel the airflow close to the hot spots and match the shape of a reflection hood to improve airflow without scattering.

REFERENCES:
patent: 4405882 (1983-09-01), Reinsch
patent: 4630182 (1986-12-01), Moroi et al.
patent: 6142659 (2000-11-01), Suzuki et al.

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