123456 单体积

US$ 52.38

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123456 单体积

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Eyekepper BB90 lenses - amber tinted lenses with 12 layer coating.100% UV protection.
Test via the spectrometer(the performance of blue light blocking):block 62% within 500nm,block 71% within 490nm,block 78% within 480nm,block 81% within 470nm,block 83% within 460nm,block 86% within 450nm,block 88% within 440nm,block 89% within 430nm,block 92% within 420nm,block more than 99% within 400nm-410nm.
30% color distortion due to 50% blue color was filtered out.
The lenses block 50% blue color of online test for color filtering properties.Please check Eyekepper BB98 lenses if you need block more blue color and blue light.
PRODUCTS DIMENSION - Frame material is Plastic, Lens width about 1 7/8 inches (48mm), Frame width about 5 1/2 inches (140mm), Lens height about 1 7/16 inches (36mm), Frame height about 1 7/8 inches (47mm), Bridge (DBL) about 1/2 inches (12mm), Temple length about 5 1/2 inches (140mm), with spring hinge

Per the Occupational Safety & Health Administration: The preferred viewing distance for VDTs ranges between 18 and 24 inches
(45.72 and 60.96 centimeters, respectively)
Filters 100% of the most damaging low-level blue and nearly 90% high energy visible light from tablets, phones, TV, computers and more.
Our lenses code is BB90 for the Eyekepper blue light block glasses.
We are one of small manufacturer,if you want to custom the different strength for each eye please let us know.

Data for Eyekepper's BB90

Nearly 90% blue light blocking for wavelength 395nm-500nm



EYEKEPPER CODE	/	BB90
LENS COLOR	Normal Transparent lens	Amber tinted lens with 12 Layer Coating
BLUE LIGHT BLOCK (395nm~500nm, average value)	/	Nearly 90%
UV PROTECT (<400nm)	/	100%
VISIBLE LIGHT (>550nm)	95%	About 80%
VISUAL COLOR DIFFERENCE LEVEL	Almost no color difference	30% color difference
RGB TEST ONLINE	Could not passed	50% variation of blue light tests online

Spectrum analyzer-Use to test different wavelength from 280nm to 780nm,e.g 400nm,430nm,460nm and 550nm

Spectrum analyzer

Blue light meter

UV pen shape light and card


Eyekepper will test below data before shipment via the optical properties meter Strength Pupil distance Horizontal position Astigmatism Prism	Note To avoid damage the violet block glasses, never clean the glasses with thefollowing: paper towels clothing alcohol household detergents soaps