Home > Term: lambert's emission law
An optical source that obeys Lambert's cosine law, i.e., that has an intensity directly proportional to the cosine of the angle from which it is viewed. Note: Conventional (surface-emitting) LEDs are approximately Lambertian. They have a large beam divergence. This results in a radiation pattern that resembles a sphere. Thus, most of their total optical output is not coupled into communication fibers.
- Part of Speech: noun
- Industry/Domain: Telecommunications
- Category: General telecom
- Company: ATIS
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- KeithC3
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