Description of π Eyekepper Blue Light Blocking Glasses for Men and Women - Cut Digital Glare, Protect Eyes from Screen Reading - Grey Arm with Yellow Filter
Eyekepper BB60 lenses - Transparent lenses with 12 layer yellowish coating. 100% UV protection. Test via the spectrometer(the performance of blue light blocking): block 35% within 500nm, block 42% within 490nm, block 49% within 480nm, block 55% within 470nm, block 60% within 460nm, block 64% within 450nm, block 67% within 440nm, block 77% within 430nm, block 97% within 420nm, block more than 99% within 400nm-410nm. 20% color distortion due to 30% blue color was filtered out. The lenses block 30% blue color of online test for color filtering properties. Please check Eyekepper BB90 and BB98 lenses if you need block more blue color and blue light. PRODUCTS DIMENSION-Frame Material: TR90 and rubber, Lens width: 2 1/16"(53mm), Frame width: 5 5/16"(135mm), Lens height: 1 3/16"(30mm), Frame height: 1 3/8"(35mm), Bridge (DBL): 1/2"(13mm), Temple length: 5 1/2"(140mm), Spring hinge: No, Lenses: Aspheric, Head size: Medium,.