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Blue Light Blocking Reading Glasses with Yellow Tinted Filter Lens - Square Nerd Computer Readers Women - Tortoise TMCGT1801 Item NO: TMCGT1801-DEMI

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US$ 17.99

Size: +0.00 +0.50 +0.75 +1.00 +1.25 +1.50 +1.75 +2.00 +2.50

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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 is TR90, Lens width about 2 1/16 inches (53mm), Frame width about 5 5/8 inches (143mm), Lens height about 1 5/8 inches (41mm), Frame height about 1 7/8 inches (47mm), Bridge (DBL) about 1/2 inch (13mm), Temple length about 5 1/2 inches (140mm), with spring hinge

Product Name	Blue Light Blocking Reading Glasses with Yellow Tinted Filter Lens - Square Nerd Computer Readers Women - Tortoise TMCGT1801
Item NO	TMCGT1801-DEMI
Weight	0.01 kg = 0.0220 lb = 0.3527 oz
Category	Computer Glasses > Blue Blocking > Womens Blue Light Blocking Glasses
Tag	bb60
Brand	Eyekepper
Creation time	2019-10-16

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 60% high energy visible light from tablets, phones, TV, computers and more.
Our lenses code is BB60 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	Data for Eyekepper's BB60 60% blue light blocking for wavelength 395nm-500nm	Data for Eyekepper's BB90 90% blue light blocking for wavelength 395nm-500nm	Data for Eyekepper's BB98 Nearly 100% blue light blocking for wavelength 395nm-500nm



EYEKEPPER CODE	/	BB40	BB60	BB90	BB98
LENS COLOR	Normal Transparent lens	Transparent lens with 12 Layer Coating of Eyekepper	Transparent lens with 12 Layer Coating of Eyekepper	Amber Tinted with 12 Layer Coating of Eyekepper	Orange Tinted with 12 Layer Coating of Eyekepper
BLUE LIGHT BLOCK (395nm~500nm, average value)	/	About 40%	About 60%	About 90%	Nearly 100%
UV PROTECT (<400nm)	/	100%	100%	100%	100%
VISIBLE LIGHT (>550nm)	95%	About 90%	About 90%	About 80%	About 60%
VISUAL COLOR DIFFERENCE LEVEL	Almost no color difference	Almost no color difference	Low color difference	Medium color difference	Serious color difference
RGB TEST ONLINE	Could not passed	Could not passed	30% variation of blue light tests online	70% variation of blue light tests online	95% variation of blue light tests online

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	Blue light Spectral distribution If you are unfamiliar with blue light it's right next to UV light on the spectrum of light. It is comprised of very high energy and a low wavelength very similarly to UV light. All of our electronic devices with a back-lit screen give off large quantities of blue light (Iphones, Ipod, Laptop, Computer TV.) T his blue light messes with our internal clock making us think it's mid day when really it can be closer to night and stops our body from naturally producing the melanin that helps us fall asleep late at night	Note To avoid damage the violet block glasses, never clean the glasses with thefollowing: paper towels clothing alcohol household detergents soaps