Premium D-Free
Freeform Single Vision
Lenses
Elevate your prescription precision. Engineered with state-of-the-art back-surface digital surfacing technology, our D-Free lenses neutralize peripheral distortion and oblique astigmatism point-by-point. We empower independent optical labs, wholesale distributors, and premium optical chains to deliver flawless visual acuity, even for the most complex high-prescription patients.
−30.00D
Max Minus
+17.50D
Max Plus
1.49-1.76
Index
Build Your Custom Lens Specification
Select your preferred options across all four parameter groups. Your selections will be included in the inquiry form below for our lab consultants to provide precise factory-direct pricing.
Group 01
Refractive Index
Group 03
Freeform Software Design
Group 02
Substrate & Lens Functions
Group 04
Functional Coatings
0 option(s) selected -- selections will auto-populate your inquiry form below.
D-Free Freeform SV -- Full Specification Matrix
All specifications represent standard production capabilities. Custom ranges available upon request for specialized laboratory requirements.
| Index | Base Material | Abbe Value | Spherical Range | Max Cylinder | Available Diameter |
|---|---|---|---|---|---|
| 1.499 | PPG CR39 | 58 | −14.50D to +12.25D | −8.00D | 50mm - 75mm |
| 1.53 | PPG TRIVEX | 45 | −17.25D to +13.00D | −8.00D | 50mm - 75mm |
| 1.56 | KOC | 38 | −16.50D to +10.00D | −8.00D | 50mm - 75mm |
| 1.56HI-VEX | KOC | 46 | −16.25D to +14.25D | −8.00D | 50mm - 75mm |
| 1.591 | Polycarbonate Panlite® | 30 | −15.75D to +9.50D | −8.00D | 50mm - 75mm |
| 1.60MR-8 | Mitsui MR-8 | 41 | −16.50D to +10.25D | −8.00D | 50mm - 75mm |
| 1.60HI-VEX MR-8 PLUS | Mitsui MR-8 PLUS | 41 | −16.50D to +10.25D | −8.00D | 50mm - 75mm |
| 1.67 | Mitrsui MR-7 | 32 | −20.00D to +14.50D | −8.00D | 50mm - 75mm |
| 1.74 | Mitsui MR-174 | 33 | −23.75D to +17.00D | −8.00D | 50mm - 80mm |
| 1.76 | Tokai | 30 | −23.75D to +17.00D | −8.00D | 50mm - 75mm |
Specialized Laboratory Support: Full support for Prism compensation, Slab-off alignment, Gradient tinting, and Pre-Cal thickness management. FDA (USA) · CE (Europe) · ISO9001 certified. Contact our lab consultants for custom specifications outside standard ranges.
Why Partner With Us for Wholesale Rx Lenses
Our back-surface digital surfacing technology eliminates the compromises inherent in traditional stock lens manufacturing.
D-Free Edge-to-Edge Optimization
Traditional stock lenses suffer from extreme swim-effect and blur as power increases. Our advanced freeform surfacing calculations optimize lens geometry across the entire surface, ensuring a wide, distortion-free visual corridor from the optical center straight to the lens edge.
Extreme Power Customization
Never turn away a high-prescription patient again. Backed by world-class mass-production digital lab infrastructure, we process extreme spheres up to −30.00D and high cylinders up to −8.00D with absolute micro-level accuracy.
Premium Substrate Integrity
We source only authentic, premium monomers including Mitsui MR-8 (1.60) and MR-7 (1.67) to guarantee optimal tensile strength, superb optical clarity (high Abbe value), and perfect crack-resistance for high-end rimless and drill-mount framing.
Application Scenario
"The Ultimate Single Vision Solution for Demanding Prescriptions"
Our premium freeform single vision lenses are the ideal choice for high-myopic and high-astigmatic professionals who refuse to compromise on aesthetics and vision quality. By optimizing lens thickness (Pre-Cal) before cutting, we significantly eliminate the heavy 'coke-bottle' edge thickness for high-minus prescriptions.
Highly recommended for modern lifestyle frames, premium acetate styles, and intricate rimless/half-rim eyewear where frame fitment, lightweight comfort, and edge-to-edge sharpness are mission-critical.
Support & Knowledge Base
Frequently Asked Questions
Technical answers for optical labs, distributors, and B2B partners sourcing RX Single Vision Lenses.
What is the maximum prescription range you can process for single vision lenses?
Backed by our world-class digital surfacing infrastructure, we specialize in extreme prescriptions. We can process high-myopic spheres up to −30.00D and high cylinders up to −8.00D with absolute micro-level accuracy, ensuring you never have to turn away a complex patient.
How does your D-Free Freeform technology differ from traditional Rx single vision lenses?
Traditional stock or basic Rx lenses often suffer from the "swim-effect" and peripheral blur as power increases. Our D-Free back-surface surfacing algorithm neutralizes oblique astigmatism point-by-point. Combined with our Pre-Cal thickness optimization, it significantly eliminates the heavy 'coke-bottle' edge, delivering edge-to-edge sharpness and an ultra-thin profile.
Which lens material do you recommend for high-myopia and rimless frames?
For high-minus prescriptions requiring aesthetically thin profiles, we strongly recommend our premium high-index monomers: MR-8™ (1.60), MR-7™ (1.67), or our 1.74 index series. For drill-mount and rimless frames, MR-8 and Trivex® are the ultimate choices due to their exceptional tensile strength and crack resistance.
Can we specify the base curve for specialized or wrap frame fitments?
Absolutely. We understand that frame fitment is mission-critical for premium optical dispensers. When submitting your custom lens specification via our interactive configurator, you can dictate the exact base curve required, or let our lab technicians calculate the optimal curve based on the frame data.
What is the standard lab turnaround time (lead time) for Rx orders?
For standard uncoated or hard-coated Rx single vision lenses, our typical lab processing time is 24 to 48 hours. Prescriptions requiring premium Anti-Reflective (AR) coatings, Blue-Block treatments, or specialized tints may require an additional 1 to 2 business days to ensure flawless quality control before global dispatch.
Have a technical question not covered here?
Contact Our Lab TeamDirect Manufacturer: Inside Our Rx Lens Factory
Witness the precision engineering and quality control that powers the world's leading optical brands.
German Engineering
18 Schneider digital surfacing systems working in precision harmony
Quality Control
FDA, CE, ISO9001, ISO13485 certified production with 0.01D accuracy
Global Reach
Serving optical brands across 80+ countries worldwide
18
Schneider Systems
80+
Countries Served
0.01D
Precision Level
Top 3
China Ranking
Trusted Partnership
Working together to deliver exceptional optical solutions globally
Inside Our Facility
State-of-the-art manufacturing infrastructure combining German precision with intelligent automation.
Contact Us
Have a question? We're here to help!
Whether you want a price list or samples, feel free to ask us anything. Our team is ready to provide the guidance and insights you need.