Patented Sandwich Technology
Pigment layers are fully encapsulated within the biocompatible hydrogel matrix, guaranteeing zero direct dye contact with corneal epithelium and conjunctiva.
Factory Profile
The Foundation of Our Manufacturing Heritage
As the cornerstone of Eyebeauty Technology Co., Ltd. with 42+ years of manufacturing leadership, Gansu Constar Technology Group serves as our premier center for advanced R&D and complex lens manufacturing.
Founded in 1984, the facility encompasses complete industrial chain control, delivering dependable contact lens OEM & ODM solutions to global brands, optical retail chains, and international medical device distributors across more than 120 countries.
Our dedicated cleanroom facilities operate under stringent medical device quality systems, combining automated molding lines with proprietary monomer purification systems to guarantee exceptional clinical comfort and visual acuity.
CE (MDR) Certified
ISO 13485 QMS
61 Granted Patents
12-Step Automated QA
42+ Years of Manufacturing Experience
800K+ Monthly Lens Production Capacity
600+ Global Partner Brands Supplied
120+ Export Countries & Regions
Core Technical Capabilities
Engineered for Ocular Safety & Optical Precision
From raw monomer distillation to enclosed color micro-encapsulation, each production phase complies with international medical device regulations.
Aspheric Optical Precision
Advanced non-spherical curve engineering minimizes spherical aberration across all prescription powers, maintaining sharp contrast and natural tear circulation.
Automated Cast Molding
Fully automated cast-molding lines eliminate edge variations, preserving uniform thickness, smooth limbal bevels, and reproducible batch consistency.
Material Engineering
>96% Optical Transmittance
Through proprietary multi-stage vacuum distillation and monomer extraction, Gansu Constar completely eliminates residual unreacted monomers. This achieves a light transmittance exceeding 96%, notably superior to the industry baseline of 89%.
Rigorous Verification
12-Step Multidimensional QA
Our comprehensive testing protocol combines AI vision surface scanning with dimensional laser interferometry, ensuring that zero defects escape the facility.
- FDA-approved medical color pigments with strict toxicity clearance
- Automated optical edge profiling and hydration balance checks
- Autoclave terminal sterilization with validated biological indicators
Production Workflow
End-to-End Traceable Manufacturing
Streamlined OEM/ODM manufacturing processes meeting CE (MDR), ISO 13485, and global regulatory registration demands.
01
Formulation & Tooling
Precision mold fabrication, monomer compounding, and custom Pantone pigment matching for private label lines.
02
Cast Molding & Curing
Automated polymer injection, multi-layer sandwich printing, and thermal/UV curing under cleanroom environments.
03
Hydration & Extraction
Multi-cycle saline extraction removes unreacted chemical monomers, stabilizing physical lens parameters and water content.
04
Sealing & Sterilization
Blister foil sealing, terminal autoclave sterilization at 121°C, lot coding, and full batch inspection release.
Partner with Gansu Constar Technology Group
Expand your product catalog with high-transmittance, certified contact lenses backed by 42+ years of manufacturing expertise from Eyebeauty Technology Co., Ltd..