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Defogging eyeglasses

  • US 5,319,397 A
  • Filed: 09/21/1992
  • Issued: 06/07/1994
  • Est. Priority Date: 09/21/1992
  • Status: Expired due to Fees
First Claim
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1. Eyeglasses with defogging means to be worn by a user, comprising:

  • (a.) frame member comprising a non-conductive lens holding segment and an attachment means by which said lens holding segment is secured in a position so that the user looks through said lens holding segment,(b.) a left lens and a right lens held by said lens holding segment,(c.) power source which is not in direct physical contact with said frame member,(d.) power limitation means which is not in direct physical contact with said frame member and which is connected to said power source to automatically limit power usage,(e.) left conductive path leading from said power source to a conductive outer left contact point in contact with said left lens,(f.) bridge conductive path leading from a conductive inner left contact point in contact with said left lens to a conductive inner right contact point in contact with said right lens,(g.) right conductive path leading from a conductive outer right contact point in contact with said right lens to said power source, and(h.) lens conductive means for making said lenses capable of conducting an electric current,(i.) wherein said left conductive path, bridge conductive path, right conductive path, and lens conductive means together comprise a conductive path means by which electrical current generated by said power source may be conducted to said lenses and back to said power source to form an electric circuit, thereby heating said lenses.

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