UV encompasses wavelengths from 100nm to 380 nm.
UVA (315nm to 380nm) UVB (280nm to 315nm) UVC (100nm to 280nm)
It is invisible to human eye and present all year long, even on a cloudy day. Short-term exposure can cause painful cornea burns. Long-term exposure can lead to cataracts.
The visible light comprises radiation between 380nm and 780nm. In the visible spectrum, wavelengths between 380nm and 500nm include violet-, blue-, and green- appearing wavelengths. The portion of the spectrum is also known as high-energy band of the visible spectrum.
For the purposes of this article, we’ll focus on blue light, one of the many hues in all visible light.
Blue light is naturally produced by the sun but also by computer monitors, smartphone screens and other digital devices. In addition to these, blue light is produced by LED and fluorescent lights, and compact fluorescent light bulbs. Blue light is essential in maintaining your sleep and wake cycle, mood and keeping your memory sharp.
Harmful Effects Of The Blue Light :
Believe it or not, but today, almost everyone is a victim of Computer Vision Syndrome (CVS), a condition which results from focusing the eyes on a computer or any gadget for prolonged hours. Continuous working on digital screens means focusing and refocusing your eyes back and forth. This leads to eyestrain, dry and sticky eyes.
Why We Need The Blue Block Lens ?
The most common effects of too much blue light exposure are eye strain, blurred vision, and headaches. However, recent studies have focused on blue light’s negative impact on the circadian rhythm and found that watching TV or using a tablet before bedtime, for example, can result in restlessness and disrupted sleep cycles. In extreme cases, too much blue light exposure can even lead to permanent eye damage and vision loss.
Children are especially vulnerable because their eyes have not yet developed natural defenses against UV and HEV blue light. Today, a staggering 97 percent of American kids under the age of four use mobile devices, and teens are spending an average of 6.5 hours per day on screens. Now that kids are using more digital devices at home and school starting at a young age, it’s important to protect their eyes as much as possible.
The Benefits of PURE Blue Block Lenses :
Blue Block Lenses is to block and protect your eyes from high energy blue light exposure. PURE Blue Block lens effectively blocks 100% UV and 100% of the Harmful blue light with passing the useful of Blue light, reduces the incidence of retinopathy and provides improved visual performance and eye protection, allowing wearers to enjoy the added benefit of clearer and sharper vision, without altering or distorting color perception.
1 – Anti-glare blue block lenses protect your eyes from the harmful effects of blue light caused by prolonged working hours on a computer, laptop or mobile.
2 – Filter the light to cut 100% UV.
3 – Absorb most harmful blue -violet light.
4 – Anti-reflection.
5 – clear & sharp vision.
6 – Relax vision over longer period of time.
7 – Minimize headache.
8 – improve sleep.
9 – Anti-eye fatigue.
10 – (E-SPF 10) PURE Blue Light Block lens has an Eye-Sun Protection Factor of 10, which means 10x times more UV protection for your eyes compared to wearing no lens at all
11 – Latest Technology products-new, clear base color of blue light block lens (NO YELLOW BASE COLOR), they maintain crystal-clear vision while protecting your eyes.
Brand Name | PURE |
Model Number | Poly 1.591 – Blue Light Block |
Refractive Index | 1.591 |
Vision Effect | Single Vision |
Design | Aspherical |
Lens Material: | Resin / Germany |
ABB Value | 32 |
Specific Gravity | 1.20 |
Abrasion Resistance | 6-8H |
Transmittance | 98-99% |
Diameter | 60/65/70/75 mm |
Coating Choice | SHMC/ Super Hydrophobic / Blue Block / Anti-Glare |
AR Coating | Green , Blue |
Power Range | SPH:0.00 to -10.00 / 0.00 to +6.00 CYL:0.00 to -6.00 |
Certification | CE / FDA / ISO9001 / TUV |
Min.Order Quantity | 1000 Pair |
Payment Terms | T/T |
| Envelopes | PURE Envelope | |||
| Cartons | DIOPTER | PACKING QUANTITY | CARTON SIZE | CBM |
| 0.00~±1.25 | 30PRS/BOX | 50X45X33CM | 0.075 | |
| ±1.50~±3.50 | 25PRS/BOX | 50X45X33CM | 0.075 | |
| ±3.75~±6.00 | 22PRS/BOX | 50X45X33CM | 0.075 | |
| Gross Weight = 21 K , Net Weight = 20 K | ||||
| Samples | By : DHL , TNT |
| Delivery Date : 5 – 7 Days | |
| Batch Goods | By : SEA , AIR |
| Delivery Date : 20 – 30 Days | |
20 – 30 Days after receiving 50% T/T in advance , the balance before shipment
