Acoustic Pulse Recognition Specification
MECHANICAL
Input method Finger, finger nail, gloved hand, or stylus activation
ELECTRICAL
Position accuracy 1% max. error
Resolution accuracy Touchpoint density is based on controller resolution of 4096 x 4096
Touch activation force Typically 2 to 3 ounces (55 to 85 grams)
Controller Board: USB 1.1
OPTICAL
Light transmission 90%+/-5%
ENVIRONMENTAL
Chemical resistance The touch activation area of the touchscreen is resistant to chemicals
that do not affect glass such as: acetone, toluene, methyl ethyl ketone,
isopropyl alcohol, methyl alcohol, ethyl acetate, ammonia-based glass
cleaners, gasoline, kerosene, vinegar
DURABILITY
Surface durability Surface durability is that of glass, Mohs’ hardness rating of 7
Expected life No known wear-out mechanism, as there are no layers, coatings, or moving
parts. APR technology has been operationally tested to more than 50
million touches in one location without failure, using a stylus similar finger.
C-33
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