Eyeglasses for use in the treatment/diagnosis of certain...

Details Eyeglasses for use in the treatment/diagnosis of certain... Eyeglasses for use in the treatment/diagnosis of certain...

A - Human Necessities

61

F

88/42.6

A61F 9/04 (2006.01)

Patent

CA 2021901

The article includes an eyeglass frame (12) and two lenses (14, 16). Each lens has a film (18,20) on one surface thereof which is changeable between an opaque condition and a transparent condition, controlled by an electrical circuit (22).

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