Handheld magnifying device incorporating a circular array of...

Details Handheld magnifying device incorporating a circular array of... Handheld magnifying device incorporating a circular array of...

2008-09-02

2009-10-06

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

With viewed object or viewed field illumination

C359S811000, C359S819000

Reexamination Certificate

active

07599135

ABSTRACT:
An LED-assisted magnifying device having a generally circularly-shaped array of LEDs adapted to provide a uniform pattern of visible illumination below a magnifying lens. An ultraviolet LED is provided as an alternate, optional light source to the generally circularly-shaped array of LEDs. A darkfield illuminator may be advantageously employed with the LED-assisted magnifying device when gemstones are being inspected.

REFERENCES:
patent: 5479293 (1995-12-01), Reed
patent: 7279688 (2007-10-01), Campman

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