×

Goggle defogging system with transparent indium-tin-oxide heating layer disposed on a lens

  • US 5,471,036 A
  • Filed: 09/21/1994
  • Issued: 11/28/1995
  • Est. Priority Date: 12/02/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. A goggle defogging system for a goggle including a frame and a lens housed in the frame, said lens including an inner layer and an outer layer held in a spaced-apart relationship, said frame and said lens including a nose region, said goggle defogging system comprising:

  • (a) an indium tin oxide (ITO) coating located on said inner layer of said lens, said ITO coating including an interior heating zone electrically isolated from the edge of said inner layer of said lens, said interior heating zone including the eye regions of said inner layer of said lens;

    (b) a pair of bus bars located along opposing edges of said interior heating zones such that one bus bar lies near the upper edge of said inner layer of said lens and said other bus bar lies near the lower edge of said eye regions, said other bus bar being isolated from said interior heating zone in said nose region of said inner layer of said lens; and

    (c) an electrical power supply coupled to said bus bars.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×