Method and apparatus for providing clean aperture through symbol

Details Method and apparatus for providing clean aperture through symbol Method and apparatus for providing clean aperture through symbol

1994-08-02

1997-03-04

Dzierzynski, Paul M.

Optical: systems and elements

Glare or unwanted light reduction

Display window

156108, 235435, 235472, 428 34, 428346, G02B 2700, B60J 100, G06K 700, E06B 324

Patent

active

056085788

ABSTRACT:
A method and window for providing a clean aperture at the reading face of a symbology reader. The window includes a layered structure including laminar sheets of optically transmissive material overlaying a window base and the adjacent laminar sheets. Each laminar sheet is releasably bonded to the window base. In use, when the outermost laminar sheet is damaged, it is peeled away to reveal the clean sheet beneath. In one embodiment, each laminar sheet includes an integral grasping tab projecting outwardly. The grasping tabs in each successive sheet are offset to permit a user to grasp the single tab corresponding to the outermost laminar sheet to peel it away. In one embodiment, a flexible boot covers an edge portion of the window to protect the window structure and retain the laminar sheets from being inadvertently peeled off. In one embodiment, the grasping tabs are replaced with recesses to provide access for gripping subsequent sheets.

REFERENCES:
patent: 5148009 (1992-09-01), Lindacher
patent: 5239406 (1993-08-01), Lynam
patent: 5270084 (1993-12-01), Parker
patent: 5504350 (1996-04-01), Ortyn

Affiliated with

Also associated with

Rating

Method and apparatus for providing clean aperture through symbol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for providing clean aperture through symbol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing clean aperture through symbol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2150900