China 1.56 Blue Block HMC Green Coating Optical lens Manufacture and Factory

1.56 Blue Block HMC Green Coating Optical lens

Short Description:

UV420 BLUE CUT LENS

Index:1.56

Selective filtering of harmful UV and Cut off bad light from TV, computer, Mobile, Ipad and etc.
Neutralizing high energy blue lights.
Blocking harmful UV rays.
Reducing glare for more comfortable vision.
Improving contrast for better color perception.
Preventing eyes from strain and fatigue.
Use for all spectacle wearers, especially office workers and individuals who spend prolonged hours using
digital devices who demand optimum visual performance and comfort.

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Product Detail

Product Tags

Quick Details

Place of Origin:CN;JIA	Brand Name:Hongchen
Model Number:1.56	Lenses Material: Resin
Vision Effect:Single Vision	Coating:HMC
Lenses Color:Clear	Diameter:70mm/65mm
Index:1.56	Color:Green
MOQ:1 Pair	RX Single Vision (SPH & ASP):ASP
RX Lens:available	Free Form:available
Specific Gravity:1.28	ABrasion Resistance:6-8H
Abbe Value:38

What is Lens Index?

The lens index refers to the index of refraction (otherwise known as refractive index) of lens material for eyewear. It is a relative measurement number that describes how efficiently the material bends light. Light refraction will depend on how quick light itself passes through the lens.

1.56 Mid-Index

The difference between 1.56 mid-index and 1.50 standard lenses is thinness. Lenses with this index reduce lens thickness by 15 percent. Full-rim eyewear frames and glasses worn during sports activities are most suitable for this lens index.

The most common materials available for use in lenses used to be glass and a hard resin called CR-39. With the continuous improvement of technology, there are more requirements of CR39(optical/plastic) lenses than glass lenses. We are a manufacturer of optical lens, and in these lenses, 1.56 index lenses are one of the most popular lenses all over the world. Furthermore, lenses with 1.56 index are considered the most cost effective lens on the world market.

Visual Effect: As high index lenses, like 1.59, 1.61, 1.67 and 1.74, 1.56 index lenses have higher ABBE value, that means from the lenses, the wearers can enjoy the more comfortable visual experience.

Hongchen Blue Block Lens

Blue light lens can transform your day – they help to block harmful blue light from natural and artificial sources, such as your phone, laptop, tablet, and the sun. Sometimes called computer glasses, blue light glasses can reduce digital eye strain and headaches – not to mention, take you up a notch in the style stakes. With a huge selection of sophisticated and classy styles, wear Christopher Cloos blue light glasses all day, inside and out.

Packaging & Delivery

Delivery & Packing

Envelops(For choice):

1) standard white envelops

2) Our brand "Hongchen" envelops

3) OEM envelops with customer's Logo

Cartons: standard cartons:50CM*45CM*33CM(Every carton can include aroud 500 pairs ~600 pairs finished lens, 220pairs semi-finished lens. 22KG/CARTON,0.074CBM)

Nearest shipping Port : Shanghai port

Delivery Time :

Quantity(Pairs)	1 - 1000	>5000	>20000
Est. Time(days)	1~7 days	10~20days	20~40 days

If you have any special requirements, can contact with our sales people, we can do all series service similar as our Domestic brand.

SHIPPING&PACKAGE

Video Description

Product Description

SPECIFICATIONS	INDEX	1.56
	VISION EFFECT	Single vision
	DESIGN	Aspheric
	PHOTOCHROMIC	No
	LENSES MATERIAL	NK-55
	COLOR	Clear
	ABRASION RESISTANCE	6-8H
	DIAMETER	65/70mm
	COATING	HMC
	It provides solar protection in exteriors,returning to have a lower level of absorption in interiors
	Can be used equally well throughout the year,in all climates and for many different activities
Payment&Shipping Terms	Port	FOB SHANGHAI
	MOQ	1000 pairs
	Supply ability	5000 pairs per day
	Power Range	SPH:-8.00~+6.00 CYL：0~-2.00 OTHER POWER AVAILABLE
Main Features	It protects your eyes from each kind of eye disease by completely screening the UV ray 1 year quality guarantee

Product Feature

What Is Blue Light?

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.

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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.

The Benefits of Blue Cut Lenses

Blue Cut Lenses is to block and protect your eyes from high energy blue light exposure. Blue cut lens effectively blocks 100% UV and 40% of the 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.

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What Blue Block Lenses by Hongchen Actually Do

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1) Anti-glare blue cut lenses protect your eyes from the harmful effects of blue light caused by prolonged working hours on a computer, laptop or mobile.

2) Lower risk of certain types of cancer.

3) Lower risk of Diabetes, Heart Disease & Obesity.

4) Make you feel engertic when you finish the long time working before the computer.

5)Make your eyes turn tried slowly.

Why We Need The Blue Cut 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.