31. HOWEVER, many people confuse infrared cameras with night vision goggles and / or passive image intensifiers . 32. :I think the use of " literally " as an intensifier is limited to certain positions. 33. Such an image intensifier has its best performance for impinging electrons with kinetic energies roughly about 1 keV. 34. The AN / PVS-4 uses a 25mm screw-type variable-gain Image Intensifier tube. 35. This in turn limits the amount of work that may be done by one stroke of the intensifier . 36. The PVS-7 is auto-gated to prevent image intensifier damage if exposed to intense light. 37. ICCD cameras are in general somewhat higher in price than EMCCD cameras because they need the expensive image intensifier . 38. These include the rufus modifiers, color intensifiers , and plus / minus ( blanket / spot ) modifiers. 39. The marine wears armor for protection and uses an image intensifier and flares to improve visibility in dark areas. 40. A large number of Spitfire VBs were fitted with " gun heater intensifier " systems on the exhaust stacks.
