US Patent No. 11,071,177

LIGHTING OPTIMIZED FOR MELANOPIC VISION


Patent No. 11,071,177
Issue Date July 20, 2021
Title Lighting Optimized For Melanopic Vision
Inventorship Myron Gordin, Oskaloosa, IA (US)
Bradley D. Schlesselman, Oskaloosa, IA (US)
Assignee Musco Corporation, Oskaloosa, IA (US)

Claim of US Patent No. 11,071,177


1. A method of illumination comprising:a. designing a first and second light source wherein:i. the first and second light source are metamers at a defined correlated color temperature (CCT);
ii. the spectral power distribution (SPD) of the first light source has a higher melanopic/photopic (M/P) or scotopic/photopic (S/P) ratio than the second light source;
iii. the first and second light sources collectively produce a light output having a defined color rendering index (CRI) above 70;
iv. the first and second light sources collectively produce a light output having a defined R9 value above 8; and
v. the first and second light sources collectively produce a light output having a television lighting consistency index (TLCI) of 40;

b. installing the first and second light sources in a lighting apparatus which emits said collectively produced light output when powered; and
c. operating the lighting apparatus at a power level which produces an increased perceived brightness as compared to one or more extant metameric variations of the first and second light sources at the same CCT.