Computer Glasses Blue Light Filter Blocking UV420 Eyewear Spring Hinge Men Women

Description

Blue Light Filter Glasses Women - UV420 Fashion Computer Reading Glasses
PRODUCTS DIMENSION - Frame Material is Plastic, Lens width about 2 1/16 inches(53mm), Frame width about  5 1/2 inches(140mm), Lens height about 1 5/16 inches(33mm), Frame height about 1 7/16 inches(37mm), Bridge (DBL) about 1/2 inches(13mm), Temple length about 5 5/16 inches(135mm), with Spring hinge
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.
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
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 the following
Payment Mothed
1. We accept payment via Paypal only.
2. Total amount due includes the final auction price plus S&H(Shipping and Handling).
3. Buyers need to pay within 7 days after successful payment, non-payment after 7 days, we are going to close this transaction.
4. The E-check payment may need to Spend 3-4 Bussiness Days to clear , then we can send items.
5. The items have been mailed, the buyers want to change the size or color, we can not accept it.
Return policy
1. If you are not satisfied when you receive your item, please contact us for a replacement or money back.
2. If the item is defective, we will send you a replacement without any extra charge, or offer a full refund after we receive the defective item,but return shipping should be paid by buyer.
3. Buyers need to return the goods within 30 days. Returned packages must be the original package, which includes ebay ID and specific reason for the returns.
About us
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