Mitsui Chemicals' MR-10 lens base stands out for its core performance beyond MR-7, efficient photochromic effects, and excellent rimless frame adaptability, meeting diverse user needs with balanced visual experience, durability and scenario fit.
I. Core Performance: Outperforming MR-7
MR-10 leads MR-7 in key dimensions like environmental resistance and protection:
| Performance Dimension | MR-10 Features | MR-7 Features | Core Advantages |
| Environmental Resistance | Heat distortion temp.: 100℃ | Heat distortion temp.: 85℃ | 17.6% higher heat resistance; no deformation under summer car exposure/outdoor sun |
| Protection | UV++ full-spectrum protection + 400-450nm blue light blocking | Basic UV protection | Reduces screen eye strain; protects retina; 40% better visual comfort |
| Processability & Durability | Impact resistance 50% above industry standard; supports precision processing | Regular impact resistance; only basic processing | Lower assembly loss; longer service life |
II. Fast Photochromism: 3 "Fast" Features for Light Changes
MR-10-based photochromic lenses excel in light adaptation:
1. Fast Coloring: 15s for Strong Light Adaptation
High-activity photochromic factors respond instantly to UV: 10s to initial light filtering (Base 1.5), 15s to full strong light adaptation (Base 2.5-3.0) – 30% faster than MR-7. Suitable for scenarios like office exits and daytime driving.
2. Deep Coloring: Base 3.0 Full Protection
Max coloring depth reaches professional Base 3.0: Blocks over 90% harmful UV/strong light at noon, reduces glare from roads/water; even in high-altitude/snowy (high UV) environments, coloring remains uniform.
3. Fast Fading: 5s to Transparency
Indoors, it reverts from Base 3.0 to ≥90% light transmittance in 5 minutes – 60% more efficient than MR-7 (8-10 minutes), enabling immediate reading, screen use or communication.
III. Rimless Frame Adaptability: Stable Processing & Durability
Rimless frames rely on screws, and MR-10 meets strict requirements:
1. Excellent Processability
Supports laser precision cutting & φ1.0mm ultra-fine drilling (MR-7 min. φ1.5mm) with no edge cracks; screw locking withstands 15N force (50% above industry's 10N), avoiding edge chipping or screw slipping.
2. Balanced Durability & Lightweight
Polyurethane base offers high impact resistance (fragmentation rate <0.1% for rimless assembly); 1.35g/cm³ density + 1.67 refractive index – 8-12% thinner edge than MR-7 for 600-degree myopia; total weight ≤15g with rimless frames (no nose marks).
3. Practical Data Verification
MR-10 has 0.3% rimless assembly loss (MR-7: 1.8%) and 1.2% 12-month repair rate (MR-7: 3.5%), mainly due to better edge/chip resistance and screw hole stability.
IV. Base Material Support: Stable Long-Term Performance
MR-10's advantages come from its base: 100℃ heat resistance maintains photochromic factor activity and rimless joint stability under sun exposure; uniform density ensures SPIN layer adhesion – retains "fast color/fade" performance after ≥2000 cycles, 50% longer service life than MR-7.
Target Users
✅ Commuters: Adapts to indoor/outdoor light; lightweight rimless wear;
✅ Outdoor enthusiasts: Deep protection in high UV; heat/impact resistance; rimless compatibility
✅ High myopia/office workers: Lightweight rimless wear; blue light protection + fast photochromism – one lens for office/outdoor use
Post time: Nov-11-2025