Invention Grant
US07654695B1 Pigmented collar for bi-color light emitting diodes 有权
双色发光二极管着色领

Pigmented collar for bi-color light emitting diodes
Abstract:
The present invention is directed to a collar for a multi-color light source that is able to convey not only color but also spatial information to a user to permit the colorblind user to distinguish between the different settings of the light source.
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