Eyekepper Blue Light Blocking Computer Reading Glasses Women Men with Yellow Tinted Filter Lens – Classic Readers -Black Red

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 60% high energy visible light from tablets, phones, TV, computers and more.Our lenses code is BB60 for the Eyekepper blue block glasses.

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 LENS CODE
/ BB40 BB60 BB90 BB98

LENS COLOR
Normal Transparent lens Transparent lens with 7 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 430nm – 460nm The 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

Blue Light Protection Test with Additive Color Model (light, RGB)

Only use to test the data more than 400nm for visible blue lightColor is transmitted through transparent media.All colors added together = white.The absence of light = true black.Because computer graphics, websites, and other digital presentations are projected/transmitted with light, screen-targeted graphics should be saved in this color model, or “RGB Mode.”

Spectrum analyzer

Blue light meter

UV pen shape light and card

Additive Color Model (light, RGB)

Eyekepper’s optical performance meter

Eyekepper will test below data before shipment via the optical properties meter Strength/DioptersPupil distanceHorizontal positionPrismEyesight-astigmia

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 blue block glasses, never clean the glasses with thefollowing:

paper towels clothingalcoholhousehold detergentssoaps

Package Dimensions ‏ : ‎ 14.8 x 4.6 x 3.6 cm; 19 g
Manufacturer ‏ : ‎ Eyekepper
ASIN ‏ : ‎ B07TYJ1NPV
Item model number ‏ : ‎ TMCG075-1C12-50
Country of origin ‏ : ‎ China
Department ‏ : ‎ Men’s
Customer reviews: 4.1 4.1 out of 5 stars (839) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Eyekepper BB60 lenses – Transparent lenses with 12 layer yellowish coating. 100% 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 Plastic, Lens width about 2 inches(51mm),Frame width about 5 7/16 inches(138mm),Lens height about 1 3/8 inches(35mm),Frame height about 1 9/16 inches (40mm),Bridge (DBL) about 1/2 inches(13mm),Temple length about 5 7/16 inches (138mm), with Spring hinge