Acoustic Pulse Recognition Technology

Table B-4APR Specifications

Input Method

Finger, finger nail, solid stylus or gloved hand (cloth, leather or

 

rubber) activation

 

 

Mechanical Positional Accuracy

1% maximum error

 

 

Resolution Accuracy

Touchpoint density is based on controllers 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 no affect glass such as:

 

●

Acetone

 

●

Toluene

 

●

Methy ethyl ketone

 

●

Isopropyl alcohol

 

●

Methyl alcohol

 

●

Ethyl Acetate

 

● Ammonia-based glass cleaners

 

●

Gasoline

 

●

Kerosene

 

●

Vinegar

 

 

Surface Durability Expected Life

Surface durability is that of glass, Hohs' hardness rating of 7.

 

No know 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 to a finger.

24 Appendix B Technical Specifications

ENWW