Instruction manual
147 
Depth of Field 
The difference between the minimum and the maximum distance of the object in the field of 
view that appears to be in focus. 
Diffused Illumination 
Distributed soft lighting from a wide variety of angles used to eliminate shadows and direct 
reflection effects from highly reflective surfaces. 
Direct Part Mark (DPM) 
A  symbol  marked  on  an  object  using  specific  techniques  like  dot  peening,  laser  etching, 
chemical etching, etc. 
EEPROM 
Electrically Erasable  Programmable Read-Only Memory. An on-board non-volatile memory 
chip. 
Element 
The basic unit of data encoding in a 1D or 2D symbol. A single bar, space, cell, dot. 
Exposure Time 
For digital cameras based on image sensors equipped with an electronic shutter, it defines 
the time during which the image will be exposed to the sensor to be acquired. 
Flash 
Non-volatile memory for storing application and configuration files. 
Host 
A  computer  that  serves  other  terminals  in  a  network,  providing  services  such  as  network 
control,  database  access,  special  programs,  supervisory  programs,  or  programming 
languages. 
Image Processing 
Any  form  of  information  processing  for  which  the  input  is  an  image  and  the  output  is  for 
instance a set of features of the image. 
Image Resolution 
The number  of rows  and columns of pixels in an  image.  The  total  number of  pixels  of an 
image sensor. 
Image Sensor 
Device converting a visual image to an electric signal. It is usually an array of CCD (Charge 
Coupled Devices) or CMOS (Complementary Metal Oxide Semiconductor) pixel sensors. 
IEC 
(International Electrotechnical Commission): Global organization that publishes international 
standards for electrical, electronic, and other technologies. 
IP Address 
The  terminal’s  network  address.  Networks  use  IP  addresses  to  determine  where  to  send 
data that is being transmitted over a network. An IP address is a 32-bit number referred to as 
a  series  of  8-bit  numbers  in  decimal  dot  notation  (e.g.,  130.24.34.03).  The  highest  8-bit 
number you can use is 254. 










