Psion Teklogix Inc.

Psion Inc.

Daniel Joseph Meringer

Andre Joseph Claude Gagne

Virgil Nastase

Andre Joseph Gagne

The invention relates to a window for an optical scanning device comprising a panel having a pair of oppositely directed light transmitting surfaces. A PTC heater wire preferably of a diameter less than the width of the smallest permissible indicia of a barcode is used to regulate the temperature of the panel. A conductive layer comprising carbon nanotubes is also provided for regulating the temperature of the device window. A window intrinsically comprising carbon nanotubes is also provided.

Heated protective window for an optical scanning device

The invention relates to a window for an optical scanning device having a panel having a pair of oppositely directed light transmitting surfaces. A heater wire of a diameter less than the width of the smallest permissible indicia of a barcode is embedded between the first and second light transmitting surfaces. The heater wire being entirely contained within the perimeter of the optical scanning device window except for a length of both of its extremities.

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Burlington, Canada

Daniel Joseph Meringer