Home>Computer Glasses>UV Protection>Computer Glasses Women>Ladies Blue Light Filter Glasses - Round Computer Eyeglasses Women UV420 Filter Protection Anti Glare - Reduce Blue Rays Eye Strain - Black/Gunmetal LX19004-BB40

Ladies Blue Light Filter Glasses - Round Computer Eyeglasses Women UV420 Filter Protection Anti Glare - Reduce Blue Rays Eye Strain - Black/Gunmetal LX19004-BB40 Item NO: LX19004-Black-Gunmetal-BB40

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US$ 24.99

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Eyekepper BB40 lenses - transparent lenses with coating.100% UV protection.
The lenses do not block blue color of online test for color filtering properties.Please check Eyekepper BB60,BB90 and BB98 lenses if you need block blue color and block more blue light.
Test via the spectrometer(the performance of blue light blocking): block 29% within 500nm, block 32% within 490nm, block 33% within 480nm, block 35% within 470nm, block 36% within 460nm, block 37% within 450nm, block 39% within 440nm, block 51% within 430nm, block 93% within 420nm, block more than 99% within 400nm-410nm.
Almost no color distortion.
PRODUCTS DIMENSION - Frame Material is Metal, Lens width about 2 inches(51mm), Frame width about 5 5/16 inches(135mm), Lens height about 1 11/16 inches(43mm), Frame height about 1 13/16 inches(46mm), Bridge(DBL) about 9/16 inches(15mm), Temple length about 5 1/2 inches(140mm), with spring hinge

Product Name	Ladies Blue Light Filter Glasses - Round Computer Eyeglasses Women UV420 Filter Protection Anti Glare - Reduce Blue Rays Eye Strain - Black/Gunmetal LX19004-BB40
Item NO	LX19004-Black-Gunmetal-BB40
Weight	0.01 kg = 0.0220 lb = 0.3527 oz
Category	Computer Glasses > UV Protection > Computer Glasses Women
Tag	BB40
Brand	Eyekepper
Creation time	2019-10-22

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 40% high energy visible light from tablets, phones, TV, computers and more.
Our lenses code is BB40 for the Eyekepper violet block glasses.
We are one of small manufacturer,if you want to custom the different strength for each eye please let us know.

Performance via spectrum analyzer

Data for Eyekepper's BB40

40% blue light blocking for wavelength 395nm-500nm



EYEKEPPER CODE	/	BB40
LENS COLOR	Normal Transparent lens	Transparent lens with 7 Layer Coating
BLUE LIGHT BLOCK (395nm~500nm, average value)	/	About 40%
UV PROTECT (<400nm)	/	100%
VISIBLE LIGHT (>550nm)	95%	About 90%
VISUAL COLOR DIFFERENCE LEVEL	Almost no color difference	Almost no color difference
RGB TEST ONLINE	Could not passed	Could not passed

Blue Light Protection Test with Spectrum Analyzer

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's optical performance meter


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