Jiangsu Aogang Optical Glasses Co., Ltd.
| Payment Terms | T/T, Western Union, L/C, D/A, D/P, MoneyGram,Paypal |
| Supply Ability | 40,000 pieces per day |
| Delivery Time | 10~30 days, depend on your quantity |
| Packaging Details | 1) Standard white envelope 2) color envelop with customer's design |
| Refractive index | 1.56 |
| Diameter | 70mm |
| Round top segment | 28 |
| Abbe value | 42 |
| Specific Gravity | 1.13 |
| Transmission | > 90% |
| Coating | Without coating |
| Power range | SPH: 0.00~+-3.00 ADD: +1.00~+3.50 |
| Brand Name | Aogang Optics |
| Model Number | Prescription Eyeglass Lenses |
| Certification | CE/FDA/ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union, L/C, D/A, D/P, MoneyGram,Paypal | Supply Ability | 40,000 pieces per day |
| Delivery Time | 10~30 days, depend on your quantity | Packaging Details | 1) Standard white envelope 2) color envelop with customer's design |
| Refractive index | 1.56 | Diameter | 70mm |
| Round top segment | 28 | Abbe value | 42 |
| Specific Gravity | 1.13 | Transmission | > 90% |
| Coating | Without coating | Power range | SPH: 0.00~+-3.00 ADD: +1.00~+3.50 |
| Brand Name | Aogang Optics | Model Number | Prescription Eyeglass Lenses |
| Certification | CE/FDA/ISO9001 | Place of Origin | China |
| High Light | spectacle lens blanks ，mid index lenses | ||
1.56 NK55 Round Top Bifocal Lens In Finished Optical Lenses Without Coating
I. Specifications
| Production | Monomer |
| 1.56 round top bifocal lens | NK-55, imported from Japan |
| Diameter | Abbe Value |
| 70mm | 42 |
| Specific Gravity | Transmission |
| 1.13 | >90% |
| Round top segment | Guarantee years |
| 28 | 3~5 years |
| Coating | Lens Color |
| without coating | clear |
| Brand | Power range |
| Aogang | SPH: 000~+300,000~-300, ADD:+100~+350 |
II. Round Top Bifocal Lenses:
Multifocal eyeglass lenses contain two or more lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age (presbyopia).
| RT-28 lenses has two different lens powers that aid in seeing objects at various distances once the aging process reduces your ability to do so.
Round top bifocals are further described by the width of the near segment, measured in millimeters (mm). The most popular RT bifocal is the RT-28, a round top bifocal with a near seg that is 28 mm wide. | |
Whatever the reason one might need to obtain prescription for correction of near-vision, bifocals work similarly. That is, the small lower lens segment (also called "seg") has the refractive power you require to correct near vision while the other part of the lens works for distance vision.
| In using bifocals, you would look through the upper part of the bifocals to focus on farther objects and look down through the lower segment to read or focus on objects at a distance of 18 inches or less.
An advantage of round seg bifocals is that the line separating the distance and near zones of the lens tends to be less noticeable than the upper line of a D-seg bifocal |
Bifocals entail the sacrifice of part of the distance field of vision. Problems encountered in the beginning, range from acute nausea and actual vomiting to virtually no discomfort.
Part of the problem for a new bifocal wearer is to learn to walk with the road slightly out of focus and to get down staircases bending the head down a little more than usual. Reading on the other hand requires an opposite action. For the first time in his visual experience, he will read without tilting his head down but only turning his eyes down.
Again, no longer having a complete segment (unless he uses an executive bifocal) to read from he now has to turn his head to follow the lines. If he scans a ledger, the entire head has to be tilted up or the ledger brought down to start reading.
To be fair, a good proportion of wearers can adapt to a bifocal in about 3 weeks' time.
III. Technical Data:
IV. Packing&Shipping:
| Envelope | Choice 1 | Choice 2 |
| White Envelope | Your design with your logo | |
| Carton | Stand Export Carton (Size:38*48*35 cm) | |
| Lenses Pair | Finished optical lens: 1 pcs/envelope, 500 pairs/carton | Semi-finished optical lens: 1 pcs/envelope, 100 pairs/carton |
| Weight | 21 KG | 15 KG |
| Lead Time | Depend on the order quantity | |
| Carrier | We can choose for you or you offer us your cooperative company | |
| Payment terms | 30% T/T in advance, the balance before shippment | |
| All the numbers provided above are estimated number, the actual number need to be measured according to the order you make. | ||
V. Our Factory:
VI. Our Service:
1. Our Customer service will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment .
2. Online via SKYPE, Whatsapp; Also through mail, voice phone, message could contact us at any time!
3. Follow up the case, record the entire process. Solution will be provide with 24 hours.
Meanwhile, the problem complaint will be reported to QC department.
QC will find defect from which department, who is in charge to identify responsibility.
4. Collect and record all the voice from each customer respond, suggestion, requirement.
5. We own the best after-sale service, if any problems happen, our team will do our best to solve for customers.
Company Details
Business Type:
Manufacturer
Year Established:
1996
Total Annual:
5,000,000-8,000,000
Employee Number:
300~400
Ecer Certification：
Active Member
Jiangsu Aogang Optical Glasses Co., Ltd is one of leading professional opthalmic lenses manufacturers in China, it's a technical factory specializes in producing optical lenses since 1996, our plant covers an areas of 12,000 squares meters and our daily output raised to 40,000pieces. The company... Jiangsu Aogang Optical Glasses Co., Ltd is one of leading professional opthalmic lenses manufacturers in China, it's a technical factory specializes in producing optical lenses since 1996, our plant covers an areas of 12,000 squares meters and our daily output raised to 40,000pieces. The company...
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