China Optical Lens Blanks Semi Finished Companies – Prescription laboratories transform 1.56 semi-finished lenses into 1.56 finished lenses – YOLI
China Optical Lens Blanks Semi Finished Companies – Prescription laboratories transform 1.56 semi-finished lenses into 1.56 finished lenses – YOLI Detail:
What Semi Finished Lens Blanks Can do?
Spectacle lenses production units that transform semi-finished lenses into finished lenses according the precise characteristics of a prescription.
The customization work of laboratories enables us to provide a wide variation of optical combinations for wearer needs, especially as regards the correction of presbyopia. Laboratories are responsible for surfacing (grinding and polishing) and coating (coloring, anti-scratch, anti-reflective, anti-smudge etc.) the lenses.
The Differences Between 1.50 and 1.56 Lenses?
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/glasses worn during sports activities are most suitable for this lens index.
What is a freeform lens?
A freeform lens normally has a spherical front surface and a complex, three-dimensional back surface which incorporates the patient’s prescription. In the case of a freeform progressive lens, the back surface geometry includes the progressive design.
The freeform process utilises semi-finished spherical lenses which are readily available in a wide range of base curves and indices. These lenses are accurately machined on the back side using state-of-the-art generating and polishing equipment to create the exact prescription surface.
• the front surface is a simple spherical surface
• the back surface is a complex three-dimensional surface
Technology for freeform lenses
• Provides the flexibility to offer a wider range of high level products, even for the smaller optical laboratory
• Only requires a stock of semi-finished spheres in each material from any quality source
• Lab management is simplified with significantly fewer SKUs
• Progressive surface is closer to the eye – providing broader fields of view in the corridor and reading area
• Accurately reproduces the intended progressive design
• Prescription accuracy is not limited by the tooling steps available in the laboratory
• Accurate prescription alignment is guaranteed
Product detail pictures:
Related Product Guide:
Our progress depends about the advanced products ,fantastic talents and continuously strengthened technology forces for China Optical Lens Blanks Semi Finished Companies – Prescription laboratories transform 1.56 semi-finished lenses into 1.56 finished lenses – YOLI , The product will supply to all over the world, such as: Swedish, Iraq, Spain, We have been committed to meet all your needs and solve any technical problems you may encounter with your industrial components. Our exceptional products and vast knowledge of technology makes us the preferred choice for our customers.
By Hellyngton Sato from UK - 2017.11.01 17:04
The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
By ron gravatt from Melbourne - 2017.09.22 11:32
