Page 264 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

Lens
Photo cathode
FIGURE 10.2
Electron gun
Focusing coil
Scanning beam
Return beam
Target Target screen
Deflection coil
10.2 How it works 253
Schematic of basic camera system.
(a) +V 0V 0V
(b) +V +V 0V GG
Photo electrons
SiO2
P-Si
(c) 0 V +V 0 V
G
SiO2
P-Si
SiO2
P-Si
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FIGURE 10.3
Schematic of CCD element demonstrating light transfer (a) from first element then (b) transitioning between elements to (c) second element.
Electron multiplication—this method is any of several means of multiplying the received electron signal strength. Examples of this type of camera/method are ICCD (intensified CCD), SIT (silicon intensified target), EB-CCD (electron bombardment CCD), and EM-CCD (electron multiplier CCD).
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