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All Products / Optics / Optical Lenses / Ball and Condenser Lenses / Sapphire and Ruby Ball Lenses
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1.0mm Diameter, Ruby Ball Lens

Sapphire and Ruby Ball Lenses

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Stock #43-639 3-5 days
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A$18.80 A$37.60
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Diameter (mm):
1.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Ruby Doped Sapphire (Al2O3)
Coating:
Uncoated
Type:
Ball Lens
Wavelength Range (nm):
600 - 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):
0.6 - 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 241:
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 similar, Sapphire has superior optical transmission. Ruby Ball Lenses are easier to see and handle for physical applications. Sapphire and Ruby Ball Lenses are ideal for improving signal coupling between fibers, emitters, and detectors. They are also used in endoscopy, bar code scanning, ball pre-forms for aspheric lenses, and sensor applications. Sapphire and Ruby Half-Ball Lenses are also available.  

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