Low light level television
- Low light level television
LLLTV, or Low Light Level Television, is a type of electronic sensing device, usually a CCD camera with a frequency detection range extending above the normal "visible" (0.4 to 0.7 micrometre) wavelengths, and into the short-wave Infrared - usually to about 1.0 to 1.1 micrometres. This allows viewing of objects in extremely low light levels, where they would not be seen by the naked eye. LLLTVs tend to be more affordable than IR cameras, which typically cover ranges from 3 to 5 µm (MWIR)or 8 to 12 µm (LWIR).
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