Invention Grant
US07864381B2 Document illuminator with LED-driven phosphor 有权
带有LED驱动荧光粉的文档照明器

Document illuminator with LED-driven phosphor
Abstract:
A scanning apparatus includes an illuminator for illuminating a portion of a document to be scanned. The illuminator includes at least one light source and an optical element positioned to redirect light emitted by the light source. A phosphor material is disposed to intercept at least a portion of the light redirected by the optical element. A photosensitive device is positioned to receive light reflected from the document for recording an image of the document.
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