US Patent 7345831 Magnifier with lamp
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Patent Inventor Names
Kin Shing Cham0
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Patent abstract
A card-shaped pocket magnifier device includes a magnifying lens having a pair of opposite optical surfaces. A housing disposed in a recess in the lens, or within a card-shaped envelope of the device, encloses LEDs, a battery and a switch connected by an electrical circuit. The LEDs direct light both edgewise into the lens, for illuminating the lens itself, and away from the lens to illuminate the field of view.
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US Patent 07345831 Magnifier with lamp US Patent 7345831 Magnifier with lamp
Infobox
Patent Number
073458310
Patent Number
73458310
Edits on 23 Sep, 2022
Golden AI
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Patent Jurisdiction
Patent Number
073458310
Date of Patent
March 18, 2008
0Patent Application Number
116819340
Date Filed
March 5, 2007
0Official Website
Patent Primary Examiner
Edits on 17 Jun, 2022
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US Patent 07345831 Magnifier with lamp
Infobox
Is a
Patent jurisdiction
Patent number
07345831
Date of patent
March 18, 2008
Patent application number
11681934
Date Filed
March 5, 2007
Patent primary examiner
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