User's Manual

OPN-3102n
1st
21
SPECIFICATIONS MANUAL
8.8 Scanning from LCD Screen
Barcodes displayed on LCD screens (brightness of white part 30 cd/m
2
or more, contrast ratio
100:1 or more) can be read.
<Conditions>
Barcode : UPC, resolution 0.33 mm specified in Chapter 8.1.
Ambient light : 100 lx or less
Distance : 95 mm from the front edge of the scanner
Angle : α = 0°, β = 0°, γ = 0°
LCD screen type : Transmissive (backlight) TFT
Illumination mode : Disable
Contrast ratio =
Brightness of white parts
Brightness of black parts
* The barcode resolution is the value when displayed on the LCD screen.
* The width of barcode element is an integral multiple of pixel width of LCD screen.
* The reading characteristics may deteriorate due to the specular reflection of LED illumination
when the reflectivity is high.
8.9 Motion Tolerance
UPC 100%/EAN can be read when it is moving at 2.54m/s.
<Conditions>
Ambient Temperature and Humidity : Room temperature and Room humidity
Ambient Light : 500 ~ 1000 lux
Distance : 125 mm from the front edge of the scanner
PCS (1D and 2D) : 0.9 or higher
Barcode Sample : UPC 0.33mm specified in Chapter 8.1.
* Scanning may fail due to the specular reflection of LED illumination when the reflectivity is high.
Figure 10: Motion Tolerance