1. We have rich experience to manufacture b270 optical glass 2. the competitive price 3. good surface quality 4. polishing

b270 optical glass

 B270 optical glass on the sun ultra-white glass with a range of high stability and high visible light transmittance characteristics. In addition, a highly stable thermal and chemical properties and fire polished surface, widely used in digital projectors, touch screen, vacuum coating the substrate and so on.

B270 ultra white glass

Nature of opticalThrough ratendneve2mm4mm15mm

1.5230

1.5251

58.3

91.7%

91.6%

91.0%

Mechanical performanceStandard valueDensityKnoop hardness HK 100Young's modulus EPoisson's ratio μ

2.55g/cm3

542kg/mm2

71.5kN/mm2

0.208

Thermal propertiesStandard valueStrain pointAnnealing PointSoftening pointCoefficient of thermal expansion

511°C

541°C

724°C

9.4×10E-6/K

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b270 optical glass