CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev 1.7
6421 Congress Ave.
8/26/2016
Boca Raton, FL 33487
+1 (561) 989-0006
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1.2
MAIN CHEETAH FEATURES
Global shutter (GS)
Monochrome or color
Large 4.5 micron pixels
Fixed pattern noise (FPN) correction
Enhanced near infrared (NIR) sensitivity version available upon request
Fast frame rates:32 fps (C5180), 50fps (C4181), 67 fps (C4180) and 75 fps (C3880)
Configurable Pixel Clock
Pixel Averaging
Sub-sampling
Area of Interest
Analog and Digital Gain Controls
Offset Control
Three selectable trigger sources: external, pulse generator or computer
Built-in pulse generator
Two programmable output strobes
Auto-white balance: once, static or tracking
Two 12-bit look-up tables (LUT)
Defective pixel correction (DPC), hot pixel correction (HPC)
Two programmable external inputs (one opto-isolated) and two external outputs (one opto-
isolated)
Flat Field Correction (FFC), User and Factory
Camera Link Base, Medium, Full and Deca support
Temperature monitor
Field upgradeable firmware, LUT, DPC, HPC, FFC
1.3
CHEETAH SPECIFICATIONS
1.3.1 General Information
A CMOS camera is an electronic device for converting light into an electrical signal.
The camera contains a light sensitive element CMOS (Complementary Metal Oxide
Semiconductor) where an electronic representation of the image is formed. The CMOS
image sensor consists of a two dimensional array of sensitive elements – silicon
photodiodes, also known as pixels. The photons falling on the CMOS surface create
photoelectrons within the pixels, where the number of photoelectrons is linearly
proportional to the light level. Although the number of electrons collected in each
pixel is linearly proportional to the light level and exposure time, the amount of
electrons varies with the wavelength of the incident light.