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Computer Reading Glasses,UV420 Protection Blue Light Filter,Half-rim Readers,Silver UVR1613

Computer Reading Glasses,UV420 Protection Blue Light Filter,Half-rim Readers,Silver UVR1613 Item NO: UVR1613-Silver

US$ 7.99
Size
+0.00 +0.50 +0.75 +1.00 +1.25 +1.50 +1.75 +2.00 +2.25 +2.50 +2.75 +3.00 +3.50 +4.00
Quantity
  • 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: 1 15/16 inches (50mm), Frame width: 5 5/16 inches (135mm), Lens height: 1 inches (25mm), Frame height: 1 inches (26mm), Bridge (DBL): 3/4 inches (20mm), Temple length: 5 1/2 inches (140mm), with Spring hinge
Product Name Computer Reading Glasses,UV420 Protection Blue Light Filter,Half-rim Readers,Silver UVR1613
Item NO UVR1613-Silver
Weight 0.0100 kg = 0.0220 lb = 0.3527 oz
Category Computer Glasses > UV Protection > Computer Glasses Men
Tag BB40
Brand Eyekepper
Creation time 2019-05-15

  • 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.




Normal transparent lens almost no color difference Transparent lens with 12 Layer Coating of Eyekepper almost no color difference
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




Spectrum analyzer

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

Spectrum analyzer

Blue light blocking glasses

Blue light meter

UV TEST

UV pen shape light and card

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