Light-source lamp and projector

Details Light-source lamp and projector Light-source lamp and projector

2011-05-17

2011-05-17

Sawhney, Hargobind S (Department: 2885)

Illumination

Plural light sources

With support

C362S244000

Reexamination Certificate

active

07942548

ABSTRACT:
An object is to provide a light-source lamp capable of reducing consumption power while ensuring a certain luminance level and a projector using the light-source lamp. This light-source lamp1gathers light from a light source at a lens for emission. The light sources3, 6are formed of a plurality of arranged light-emitting diodes32, 62, and the light sources3, 6are driven with pulse-width modulation control of the light-emitting diodes32, 62. With this, compared with a configuration in which the light sources3, 6are subjected to analog control, consumption power of the lamp can be reduced while ensuring a certain luminance level lm.

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Japanese Office Action for application No. 2006-009058, mailed Nov. 9, 2010.
Japanese Office Action for application No. 2006009057, mailed Nov. 9, 2010.

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