Motorola MS4404, MS4407 Embedded Window Angle and Position

2 - 6 Symbol MS4404/MS4407 Integration Guide
Polysiloxane Coating
Polysiloxane type coatings are applied to plastic surfaces to improve the surface resistance to both scratch and
abrasion. They are usually applied by dipping, then air-drying in an oven with filtered hot air.
Embedded Window Angle and Position
If a window is placed between the MiniScan and the item to be imaged, observe the following guidelines:
• Window Clear Opening - Make the clear opening of the window large enough so that the entire imager field
of view passes through the window. Cutting off any part of the field of view can degrade decode range
performance. Ensure that window placement relative to the MiniScan accounts for tolerances on all parts
involved in that assembly.
• Window Angle - Angle the window at least 2o more than the tilt of the window on the imager (see T able 2-3).
Further tilting the window is acceptable and decreases the possibility of a secondary reflection from that
window degrading the imager's performance.
• Optical Working Range - Adding a window can reduce the working range of the imager since there is a
signal loss when passing through window material. To minimize this reduction, use a special coating
described in Window Coatings on page 2-5. To understand the difference, test the imager in the desired
orientation and see if the difference affects imager performance.
Table 2-2 Window Manufacturers and Coaters
Company Discipline Specifics
Evaporated Coatings, Inc.
2365 Maryland Road
Willow Grove, PA 19090
(215) 659-3080
Anti-reflection coater Acrylic window supplier
Anti-reflection coater
Fosta-Tek Optics, Inc.
320 Hamilton Street
Leominster, MA 01453
(978) 534-6511
Cell-caster, hard coater,
laser cutter CR39 exit window manufacturer
Glasflex Corporation
4 Sterling Road
Sterling, NJ 07980
(908) 647-4100
Cell-caster Acrylic exit window
manufacturer
Optical Polymers Int. (OPI)
110 West Main Street
Milford, CT 06460
(203) 882-9093
CR-39 cell-caster, coater,
laser cutter CR39 exit window manufacturer
Polycast
70 Carlisle Place
Stamford, CT 06902
(800) 243-9002
acrylic cell-caster, hard
coater, laser cutter Acrylic exit window manufacturer
TSP
2009 Glen Parkway
Batavia, OH 45103
(800) 277-9778
acrylic cell-caster, coater,
laser cutter Acrylic exit window manufacturer