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Company Profile

We are one of the earliest lens factories located in the famous Optical Industrial Park in Danyang City.

Our optical lens company covers an area of 13,000 square meters, employs 150 workers and produces 20,000 pairs of lenses per day.

We are specialized in the research, development and production of custom eyeglass lenses and optical lens mould.

We have 30+ years of experience and advanced technology and we have obtained a series of patents.

We also work with Essilor companies.



Our History

1992 Set up a factory to produce internal astigmatic glass lenses

1993 Production of internal astigmatism glass lenses

1998 R & D and production of resin lens astigmatism mold

2003 R & D and production of resin lens aspheric mould

2008 R & D of progressive multi-focus Resin lens mould

2012 Production of resin lenses began

2015 Develop perpheral defocusing double ASP lens

2022 Developed DIMS lenses and obtained invention patents


Crystal Optical History


Company Culture

Corporate vision: Optometry research and development leader

Enterprise mission: Create value by heart

Enterprise purpose: Create benefits for the company, create value for customers

Enterprise spirit: Unity, pragmatism, innovation, inclusiveness and progress

Business philosophy: Integrity cast us, service weave the future

Core values: Integrity based, steady management, pragmatic dedication, innovation

Crystal Optical Co.,Ltd.

Crystal Optical Culture


Quality Control

Quality Requirements:

Surface quality, thickness, power,diameter, base color, and coating colour must meet the standard.


Test Methods:

Test adhesion of hard coating: The blade is evenly etched with 1mm square grid on the lens surface with a diamond wheel, and then fixed with 3M adhesive tape. The hard coating is not peeled off after repeated pulling ten times, which is considered qualified.

Test coating adhesion: The lens is immersed in 5% salt water, boiled, and then placed in the water for 2 minutes after being boiled. The lens is repeatedly immersed and boiled for 6 times, and the film color does not peel off, which is considered qualified.


Crystal Optical Quality Control



Office
Office
Office
Office
Office
Office
Hardening Inspection
Hardening Inspection
Filling
Filling
Workshop
Workshop
Package
Package
Mold Clamping
Mold Clamping
Cleaning and Hardening
Cleaning and Hardening


fda
iso
sgs
utility model patent certificate
patent certificate
invention patent certificate
manufacturing process of first line dual lens mold invention patent certificate



About Us Products