Methods and apparatus for a bar-code reader employing an...

Registers – Coded record sensors – Particular sensor structure

Reexamination Certificate

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C235S462450

Reexamination Certificate

active

11324051

ABSTRACT:
A bar-code reader includes a housing, a window affixed to the housing and separating an internal environment from an external environment, and an anti-fog coating on the window within an optical path of the bar-code reader. In accordance with one embodiment of the present invention, the anti-fog coating is a hydrophilic layer; in another embodiment, it is a hydrophobic layer. The anti-fog coating may be used internally, externally, or both, and may be applied to any number of components within the optical path.

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