LAMBERTIAN SOURCE


Meaning of LAMBERTIAN SOURCE in English

An optical source that obeys Lambert's cosine law . ( 188 ) Note: Conventional (surface-emitting) LEDs approximate a Lambertian source. They have a large beam divergence , and a radiation pattern that approximates a sphere. Thus, most of their total optical output is not coupled into communications fibers.

Telecommunication standard terms English vocab.      Английский словарь стандартных телекоммуникационных терминов.