Optical Usage 1.56 HMC Photogrey Film Progressive Semi Finished
Lens Blanks For Anti Blue Ray
I. Technical Data
|1.56 Semi Finished Photochromic Progressive(12mm) Lens(Brown/Gray)|
Material: 1.56 Index Resin(Ne=1.56, Abbe=43, Specific Gravity=1.14)
Add Power: +1.00 to +3.50 in 0.25D steps
|Nominal Base Curve||Recommended Diopter in Base||Cylinder|
|3.00||-13.50 to -4.75||0~-6.00|
|4.00||-4.50 to +1.00||0~-6.00|
|5.00||+1.25 to +4.50||0~-6.00|
|6.00||+4.75 to +7.50||0~-6.00|
|Index||1.56||Monomer||NK55 (imported from Japan)|
|Diameter||70 MM||Corridor Length||12/14 MM|
|Abbe Value||58||Specific Gravity||1.32|
|Transmission||> 98%||Power Range||ADD: +100～+300|
1. Blue Cut Lenses
♦. Definition of blue light: It’s part of the visible light
spectrum, which comes from both the sun and artificial light
sources like digital screens and fluorescent lights. This type of
light gets absorbed deep in the eye, making it potentially
impacting to long-term vision. Overexposure to blue-violet light or
Harmful Blue Light, especially outside in the sun and through
constant use of electronic devices and screens, is why protecting
your vision has never been more important.
Nowadays, we spend more time using a wide variety of digital
devices to work, learn and be entertained.
Recent digital screens are often equipped with powerful light
source such as LED. These digital screens emit intense blue light
and can cause eye strain after long exposure.
♦. Blue Cut Lenses: Blue Cut Lenses have a special coating which
reflects blue light and prevents it from passing through, allowing
wearers to enjoy the added benefit of clearer and sharper vision,
without altering or distorting color perception.
2. Progressive Lenses
Progressive lenses can give you sharp vision at any distance.
Instead of being constrained by viewing zones (near and distant,
like with bifocals).
The lens location of the correct addition power for the viewing
distance usually only requires small adjustments to head position,
because near vision tasks such as reading are usually low in the
visual field and distant objects higher in the visual field.
Progressive addition lenses avoid the discontinuities (image-jumps)
in the visual field created by the majority of bifocal and trifocal
lenses and are more cosmetically attractive.
3. Turn Grey Photochromic Film
Photochromic Film Lenses are clear indoors and automatically. They
adjust their level of darkness to the amount of light outdoors are
called adaptive lenses. These lenses are great for people who are
always on the move, going from indoors to outdoors several times a
day. These lenses adjust from clear to dark, and every shade in
between—and that makes it easier than ever to adapt to changing
light. For an active lifestyle, discover other lenses for outdoor
IV. Coating Choice
♦. Hard coating(HC): is to make the uncoated lenses are easily
subjicted andexposed to scratches
♦. Anti-reflctive Coating(AR): Also can be called Hard Multi
Coating(HMC), is to protect the lens effectively from reflection,
enhance functional and charity of your vision
♦. Super Hydrophobic Coating(SHMC): is to make the lenswaterproof,
antistatic, anti slip and oil resistance
V. Packing & Shipping
|1. Envelope||2. Outer Box|
|a). Standard white envelope||Standard export paper carton (Size: 38*48*35cm, 0.064CBMS)|
|b). Color envelope with customer design (Weight: 157g, Size:
9*9*9cm)||Finished lens: include about 500 pairs (Weight: about 21kg)||Semi finished lens:include about 100 pair(Weight: about 15kg)|
|1. Samples:||2. Batch Goods:|
|Delivery time: 3-7 days (by Fedex, DHL, UPS, TNT etc.)||a). Delivery time: 10-30 days (depend on your quantity, by air, sea
|Sample is free, but according to our company rule, the shipping
cost need to be assumed by customers.||b). Carrier: We can choose for you or offer us your cooperative
Q:Can I get samples?
A: Yes certainly. We will provide samples for free. But according
to our company rule, the shipping cost need to be assumed by customers.
Q: Are you a factory? How about your optical lens production
ability per day?
A: Yes, we are a professional optical lens manufactruer in China. Our
daliy productionn is about 20000 pairs.
Q: How many days will the order be finished?
A: It depends on your order quantity.
Q: How do you avoid quality problmes?
A: Our producing process is in vacuum dust-free shop, like prepare
material, mixed material and take out .Four times quality checking during production
process. We have more than 10 years experience of lens production,so we have mature system for
quality contral and customer service.