Semi Finished 1.56 Progressive Blue Block UV420 manufacturers spectacle lentes opticos optic optical lenses lens SF Blue Cut len
- Category: >>>
- Supplier: Shengya (guangzhou) Optical Trade Co. Ltd.
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Product Overview
Description
Progressive lenses are the most exciting and technologically advanced spectacle lenses available.
If you're a 40-something who has trouble reading fine print, you have more lens options than the old lined bifocals your parents
wore. Progressive lenses, sometimes called "no-line bifocals," are multifocal lenses that eliminate the lines of a bifocal or
trifocal lens. They look exactly like single vision lenses so nobody will know your arms have gotten too short to see small print!
They continue to increase in popularity and are now the most widely purchased lenses to correct presbyopia (the loss of near
vision with age). Some people experience problems with progressive lenses when they try to adapt the first time or even to a new
pair in a different frame and/or a different optical prescription.
If you're a 40-something who has trouble reading fine print, you have more lens options than the old lined bifocals your parents
wore. Progressive lenses, sometimes called "no-line bifocals," are multifocal lenses that eliminate the lines of a bifocal or
trifocal lens. They look exactly like single vision lenses so nobody will know your arms have gotten too short to see small print!
They continue to increase in popularity and are now the most widely purchased lenses to correct presbyopia (the loss of near
vision with age). Some people experience problems with progressive lenses when they try to adapt the first time or even to a new
pair in a different frame and/or a different optical prescription.
① Who need the blue cut lenses:
Blue light lenses is ideal for people who work on digital devices for prolonged hours. By restricting the blue light from enteringinto the eyes, it helps reduce the symptoms of eyestrain (dry and sticky eyes) resulting from screens of digital devices. Also,
lenses with blue cut coating offer a comfortable vision and may improve visual performance in low color contrast.
② Hrmful Effects of Blue Light:
● Disrupts the Circadian Rhythm
● Higher risk of certain types of cancer
● Higher risk of Diabetes, Heart Disease & Obesity
● Aggravates Depression
● May induce Myopia
● May induce/aggravate Age Related Macular degeneration & even irreversible vision loss
● Digital Eye Strain Syndrome, Blurry Vision, Aesthanopic & Orthopaedic symptoms
● Suppresses Melatonin –the sleep inducing hormone, thus reducing the ability to sleep
● Disrupts the Circadian Rhythm
● Higher risk of certain types of cancer
● Higher risk of Diabetes, Heart Disease & Obesity
● Aggravates Depression
● May induce Myopia
● May induce/aggravate Age Related Macular degeneration & even irreversible vision loss
● Digital Eye Strain Syndrome, Blurry Vision, Aesthanopic & Orthopaedic symptoms
● Suppresses Melatonin –the sleep inducing hormone, thus reducing the ability to sleep
ShengYa（danyang) Optical Technology Co.,Ltd
is a professional optical lens manufacturer for more than 10 years in China. All lenses are exported to European countries, Japan, Korea, North and South America, Middle East, Southeast Asia and Africa market. We guarantee the quality to all buyers all over the world, and got a high reputation about quality from buyers in the past 8 years exporting time. In ShengYa optical, you can find high quality lenses with the most competitive prices.
Our main products include plastic lenses and mineral lenses, single vision lenses, bifocal lenses, progressive lenses, photochromic lenses, tintable lenses, PC lenses, common power and RX lenses, finished and semi-finished lenses.We exhibit in domestic and abroad optical fair every year, such as Beijing/Shanghai/Hongkong/Mido and etc., you are always welcome to visit us and have further negotiations.
Custom packaging
1.Standard white envelope
2.Color envelope with customer design
2.Color envelope with customer design
Package
1.Include around 500 pairs of finished lenses, 25kg
2.Include around 100 pairs of semi-finished lenses, 15kg
2.Include around 100 pairs of semi-finished lenses, 15kg
Loading and delivery
1.Samples by Fedex, DHL, UPS, TNT etc.
2.Batch goods by air, sea, express
We can choose for you of offer us your cooperative company
2.Batch goods by air, sea, express
We can choose for you of offer us your cooperative company
Q:Could I have a sample to check the quality ?
A:Yes,for the ready in stock models, we could send out samples immediately, For out of stock models, we provide sampling service according to your requirement.
Q:How does your factory do regarding quality control?
A:Quality is priority! And all of raw material we used are environmental-friendly;
Quality control department specially responsible for quality checking in each process.
Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ;
We respect every customer as our friend and we sincerely do business and make friends with them.
Q:What’s your payment term?
A:T/T, PayPal, Or Alibaba trade assurance.
Q:How much is the shipping cost?
A:It depends on the total weight of your order and the way you chose for shipping.There are International Express Door to Door,Airline Company and Ocean Transportation available.
Q:When is the delivery time?
A:According to your order quantity,the delivery time will be different. but all based on what materials what do you need.We will be very supportive in delivery if client has unchangeable promotion plan.
A:Yes,for the ready in stock models, we could send out samples immediately, For out of stock models, we provide sampling service according to your requirement.
Q:How does your factory do regarding quality control?
A:Quality is priority! And all of raw material we used are environmental-friendly;
Quality control department specially responsible for quality checking in each process.
Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ;
We respect every customer as our friend and we sincerely do business and make friends with them.
Q:What’s your payment term?
A:T/T, PayPal, Or Alibaba trade assurance.
Q:How much is the shipping cost?
A:It depends on the total weight of your order and the way you chose for shipping.There are International Express Door to Door,Airline Company and Ocean Transportation available.
Q:When is the delivery time?
A:According to your order quantity,the delivery time will be different. but all based on what materials what do you need.We will be very supportive in delivery if client has unchangeable promotion plan.
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