Methods and apparatus for setting the color point

专利名称：Methods and apparatus for setting the

color point of an LED light source

发明人：Joon Chok Lee,Len Li Kevin Lim,Rizal Bin

Jaffar

申请号：US10902409申请日：20040728

公开号：US20060022999A1公开日：20060202

专利附图：

摘要：In one embodiment, a user-selected color point is received. RGB tristimulusvalues are then derived for the color point. It is also determined whether the user-

selected color point is outside a color selection range of the LED light source and, if so,an error flag is set. Pulse width modulated signals for a plurality of LED drivers for theLED light source are also generated. In another embodiment, tristimulus values

representing a color of light produced by an LED light source are received. The receivedtristimulus values are then compared to tristimulus values corresponding to a user-identified color point. In response to the comparison, pulse width modulated signals aregenerated for a plurality of LED drivers for the LED light source. After a predeterminednumber of repetitions of these actions, an error flag is set if the user-selected color pointhas not been achieved by the LED light source.

申请人：Joon Chok Lee,Len Li Kevin Lim,Rizal Bin Jaffar

地址：Kuching Sarawak MY,Taiping Perak MY,Masjid Tanah Melaka MY

国籍：MY,MY,MY

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