1. Ntugharị ọkụ:
Ike nke isi iyi ọkụ na-ebunye n'ime oghere gbara ya gburugburu n'otu oge ma na-ebute nghọta anya ka a na-akpọ flux luminous Φ Anọchitere anya na lumens (Lm).
2. Ike ọkụ:
A na-akpọ ọkụ ọkụ na-egbuke egbuke site na isi iyi ọkụ na ntụziaka kpọmkwem n'ime otu akụkụ siri ike nke a na-akpọ ọkụ ọkụ nke ìhè na ntụziaka ahụ, nke a na-akpọ ike ọkụ maka mkpụmkpụ.Na-anọchi anya akara ngosi I, na candela (Cd), I = Φ/ W .
3. Ọkụ:
A na-akpọ ọkụ na-egbuke egbuke nabatara n'okporo ụzọ ụgbọ elu unit, nke e gosipụtara na E, na unit ahụ bụ lux (Lx), E = Φ/ S .
4. Onwunwu:
A na-akpọ ọkụ na-egbuke egbuke nke ihe na-egbuke egbuke na mpaghara ntule nkeji na ntụziaka a na-akpọ nchapụta, nke a na-egosipụta na L, na unit bụ candela kwa square mita (Cd / m).
5. Okpomọkụ agba:
Mgbe agba nke isi iyi ọkụ na-apụta bụ otu agba nke onye ojii na-ekpo ọkụ na-ekpo ọkụ na ọnọdụ ụfọdụ, a na-akpọ ya okpomọkụ okpomọkụ nke isi iyi ọkụ, nke a na-ebelata dị ka okpomọkụ.
Mmekọrịta ntughari ozugbo nke ọnụahịa otu ọkụ ọkụ LED
A na-ekesa ọkụ na-egbuke egbuke nke 1 lux=1 lumen n'otu n'otu n'otu mpaghara nke 1 square mita.
1 lumen = ọkụ na-egbuke egbuke na-ebupụta site na isi iyi ọkụ nwere ọkụ ọkụ nke 1 kandụl n'akụkụ akụkụ siri ike.
1 lux = ọkụ ọkụ na-emepụta site na isi iyi ọkụ nwere ọkụ ọkụ nke 1 kandụl n'okirikiri nwere radius nke 1 mita.