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US07690807B2 Optical mirror element 失效
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Optical mirror element
Abstract:
The present invention consists of an optical mirror element to be used in combination with a light source. Light from a light source contained within the mirror element shank provides illumination in front of and behind the mirror head. In this way, for example, the invention can be used in dentistry both for illuminated, indirect vision in the mouth and as an illuminated cheek or tongue retractor. The invention can be used in combination with any suitable light source including, but not limited to, a conventional lamp, a light emitting diode, or a light pipe.
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