Peak beam intensity, reported in candela, represents brightness as perceived by the human eye and is related to how the beam is focused by the optical system (typically a reflector, lens, or optic).
Ukuphakama kwamandla, okubikwe ku-candela, kubonisa ukukhanya njengokubona kweso lomuntu futhi kuhlotshaniswa nendlela i-beam igxilwe ngayo uhlelo lwe-optical (ngokuvamile umbukiso, i-lens, noma i-optic).