US 5,572,007 A · Symbology reader with interchangeable window

Abstract

A symbology reader having a replaceable window element. The window element is user replaceable and incorporates varying features for varying applications. By removing and replacing a window element, the user may provide a clear, uncontaminated surface through which light may enter or exit the reader. In some embodiments, the window element includes focusing elements for defining a target plane for a detector assembly within the reader. In one such embodiment, the reader also includes additional focusing elements for focusing spotter beams to aid a user in aligning the reader to the defined target plane. The window element also incorporates polarizers and color selected filters for optimizing the reader for specific applications. In one embodiment, the reader includes a protective rubber boot to provide shock protection and to releasably retain the window element in attachment to the reader. In an alternative embodiment, the reader includes a releasable tab to hold the window element in position on the reader.

Claims31

Dependent claims

A user replaceable window for a symbology reader having a reading face with an optical aperture therethrough, the reader having a releasable window retainer positioned adjacent an edge of the reader aperture, comprising:

an optically transmissive base for attachment to the reader at its reading face, the base conforming substantially to the reading face;
an alignment guide for retaining the window in alignment with the aperture;
and
a region adapted for engaging the window retainer to releasably hold the window in attachment to the reader.

1 more element

Dependencies are inferred from the claim text.

Symbology reader with interchangeable window

Life of this patent

Symbology reader with interchangeable window

Life of this patent

Abstract

Claims31