Eyekepper Readers Quality Spring-Hinges Sport Style Computer Reading Glasses Computer Glasses Eyeglasses

Price: $11.99
(as of May 27, 2024 14:16:14 UTC – Details)

Product Description

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 100% 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

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

Customer Reviews

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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

Blue Light Protection Test with Blue Light Meter

Use to test wavelength is 450nmThe data of left is visiable lightThe data of middle is blue light remainingThe data of right is UV light remaining

Blue Light Protection Test with UV Pen Shape Light and Card

Only use to test the data less than 400nm for UV light ,can not use to test the blue light for wavelength more than 400nm

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

StrengthPupil distanceHorizontal positionAstigmatismPrism

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.) This 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 clothingalcoholhousehold detergentssoaps

Customer Reviews

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4.6 out of 5 stars
26

4.5 out of 5 stars
40

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Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 1.5 x 5.43 x 1.5 inches; 2.47 ounces
Department ‏ : ‎ unisex-adult
Date First Available ‏ : ‎ December 15, 2015
Manufacturer ‏ : ‎ Wenzhou Cofly Optical Co.,Ltd
ASIN ‏ : ‎ B019A0PVGS