Elo TouchSystems 1229L(WWW) - Manual (Page 50)

C-45
AccuTouch Touchscreen Specifications
Mechanical
Construction Top: Polyester with outside hard-surface coating with clear or
antiglare finish.
Inside: Transparent conductive coating.
Bottom: Glass substrate with uniform resistive coating. Top and
bottom layers separated by Elo-patented separator dots.
Positional Accuracy Standard deviation of error is less than 0.080 in. (2.03 mm). This
equates to less than ±1%.
Touchpoint Density More than 100,000 touchpoints/in² (15,500 touchpoints/cm²).
Touch Activation Force Typically less than 4 ounces (113 grams).
Surface Durability Meets Taber Abrasion Test (ASTM D1044), CS-10F wheel, 500 g.
Meets pencil hardness 3H.
Expected Life AccuTouch technology has been operationally tested to greater than
Performance 35 million touches in one location without failure, using a stylus
similar to a finger.
Optical
Light Transmission Typically 85% at 550-nm wavelength (visible light spectrum).
(per ASTM D1003)
Visual Resolution All measurements made using USAF 1951 Resolution Chart, under
30 X magnification, with test unit located approximately 1.5 in.
(38 mm) from surface of resolution chart.
Antiglare surface: 6:1 minimum.
Haze (per ASTM D1003) Antiglare surface: Less than 15%.
Gloss (per ASTM D2457) Antiglare surface: 90 ± 20 gloss units tested on a hard-coated front
surface.