2.5mm Diameter, Sapphire Half-Ball Lens

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Stock #49-554 In Stock
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$25.00
Qty 1-10
$25.00
Qty 11+
$19.50
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Diameter (mm):
2.50
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Sapphire (Al2O3)
Coating:
Uncoated
Type:
Half-Ball Lens
Index of Refraction nd:
1.77
Melting Temperature (°C):
2053.00
Radius R (mm):
1.25
Specific Gravity (g/cm3):
3.98
Sphericity (μm):
0.64
Thickness (mm):
1.25
Compressive Strength (psi):
300,000
Diameter Tolerance (μm):
±2.54

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 235:

Product Family Description

Sapphire and Ruby half-ball (hemispherical) lenses feature a very short back focal length with the convenience of a flat surface for easy mounting. Sapphire features a high index of refraction and excellent broadband transmission characteristics. Ruby half-ball lenses are easier to see and therefore easier to handle for physical applications. The lenses are very chemically stable and are great for severe environments, high temperature applications, and applications requiring high melting points. Typical applications include fiber communication, endoscopy, microscopy, optical pick-up devices, and laser measurement systems.