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Products / Optics / Optical Lenses / Ball and Condenser Lenses / Sapphire and Ruby Ball Lenses
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0.50mm Diameter, Sapphire Ball Lens

Sapphire and Ruby Ball Lenses

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Stock #46-117
- +
C$30.80
Qty 1-10
C$30.80
Qty 11+
C$23.80
Volume Pricing
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Diameter (mm):
0.50
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Sapphire (Al2O3)
Coating:
Uncoated
Type:
Ball Lens
Wavelength Range (nm):
200 - 5500
Coefficient of Thermal Expansion CTE (10-6/°C):
8.4
Index of Refraction nd:
1.77
Melting Temperature (°C):
2053.00
Porosity (%):
0.00
Specific Gravity (g/cm3):
3.98
Sphericity (μm):
0.625
Wavelength Range (μm):
0.2 - 5.5
Compressive Strength (psi):
300,000
Diameter Tolerance (μm):
±2.54

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 233:
Compliant
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Product Family Description

Sapphire and Ruby ball lenses are both made from Al203. Ruby or Ruby-Doped sapphire owes its red color to traces of chromium oxide (chromium content for ruby balls is typically >0.5%). While their physical and chemical properties are basically the same, their optical properties are somewhat different. Sapphire has superior optical transmission qualities. Ruby Balls are easier to see and therefore easier to handle for physical applications.

For general information about ball lens, as well as how to calculate the NA and Focal Length, view Understanding Ball Lenses.

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