1.56 Photochromic Round Top Hmc Semi Finished Lens Blanks for Bifocal Vision

Model NO.
YZ179
Certification
ISO9001
Customized
Customized
Coating
EMI
Transport Package
Bag
Origin
China
HS Code
9001909090
We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for 1.56 Photochromic Round Top Hmc Semi Finished Lens Blanks for Bifocal Vision, The product will supply to all over the world, such as: Czech republic, America, Cape Town, With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in this field and other industries. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success! We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.
Suzhou Yazheng Optics Technology Co., Ltd. Diamond / Audited Supplier
General Information

 1.56 Photochromic Round Top HMC Semi Finished Lens Blanks For Bifocal Vision

Item  1.56 Photochromic Round Top HMC Semi Finished Lens Blanks For Bifocal Vision
Material Acrylic 
Dimension Tolerance +0/-0.2mm
Thickness Tolerance +/-0.1mm
Surface Quanlity 40-20 or better
Surface Figure lambda/4 or better  @632.8nm
Center Error ETV better than 0.01mm
Clear Aperture 90% of diameter
Bevel Protective bevel
Coating No

 

Guide

Lenses are available in a large selection and in custom sizes and focal lengths.
In addition to our standard coating we offer custom anti-reflective coating at specific wavelengths.
Achromatic lenses (DLB) which are chromatic aberration correction are also available. 

Attention

Plano concave lens and biconcave lens has a chromatic aberration, and the focal length will vary depending on the wavelength. Please check the “wavelength characteristic of the focal length data” on “Technical Data” of Plano concave lenses (SLB-N) or Biconcave lenses (SLB-B-N) for the focal lengths of each wavelength. 
Transmissions losses due to reflection off the front and rear surfaces of the lens can be minimized by coating the surfaces. Consult our Sales Division for anti-reflection coatings suitable for your application.
The outer edge of the concave side is chamfered and the result is possibility that the lens may have a smaller edge thickness for this design.

Common Specifications

Item  1.56 Photochromic Round Top HMC Semi Finished Lens Blanks For Bifocal Vision
Material Acrylic 
Dimension Tolerance +0/-0.2mm
Thickness Tolerance +/-0.1mm
Surface Quanlity 40-20 or better
Surface Figure lambda/4 or better  @632.8nm
Center Error ETV better than 0.01mm
Clear Aperture 90% of diameter
Bevel Protective bevel
Coating No

Delivery Type

Generally, we use the Fedex, DHL, UPS, TNT, Shunfeng, etc. Please note it before delivery. Transit time deponds on the express and destination. By the way, we would re-check all the details before delivery.

Customized Service

FAQ

Q1: Can I get a sample to test the quality before the bulk order?
A1: Its okay that we provide sample. The sample cost will be refunded in your following official order by negotiation.

Q2: Can I design my idea product here?
A2: OEM & ODM will be warmly welcome! We could produce upon your design.

Q3: Can I customize the package of the product?
A3: Of course you can, just contact our salesman to express your opinion, we will do our best to meet your needs.

Q4: Are you a factory or trading company?
A4: We are a manufacturer for more than 10 years experience. We sell our products at home and abroad.

Q5: Whats your shipping method?
A5: Usually we ship cargo via Fedex, DHL, EMS, UPS and so on. If the volume is big, we can ship by sea. We cooperate with shipping company who can provide the best shipping rate.

Q6: What is your date of delivery?
A6: Normally we have large stock so that we can ship the cargo promptly. If your order is large quantity, the lead time is about 10-14 days.

Q7: What is your payment term?
A7: Alibaba Trade Assurance, Alibaba Secure Payment, Paypal, T/T, Western Union, Money Gram and cash.

 Glad to hear from you!