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All Products / Optics / Optical Lenses / Aspheric Lenses / Glass Polished / Sapphire Aspheric Lenses
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25mm Dia. x 75mm EFL, 1064nm V-Coat, Sapphire Aspheric Lens

Sapphire Aspheric Lenses

Sapphire Aspheric Lenses

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Stock #27-257 New 3-5 days
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S$4,299.25
Qty 1-5
S$4,299.25
Qty 6+
S$3,654.00
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Coating Aperture (mm):
22.5

Physical & Mechanical Properties

Diameter (mm):
25.00 +0/-0.1
Centering (arcmin):
3
Clear Aperture CA (mm):
22.5
Center Thickness CT (mm):
3.40 ±0.10
Bevel:
0.5 x 45°
Surface Roughness (Å):
40
Poisson's Ratio:
0.27
Young's Modulus (GPa):
435

Optical Properties

Effective Focal Length EFL (mm):
75.00
Numerical Aperture NA:
0.17
Back Focal Length BFL (mm):
73.06
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Sapphire (Al2O3)
Coating:
1064nm V-Coat
Coating Specification:
Rabs< 0.25% @ 1064nm @ 0° AOI
Surface Quality:
40 - 20
f/#:
3
Irregularity (P-V) @ 632.8nm:
0.5λ
Power (P-V) @ 632.8nm:
1λ

Material Properties

Density (g/cm3):
3.97

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Family Description

  • Durable Sapphire Substrates Ideal For Material Processing and Advanced Manufacturing
  • Uncoated and 1064nm Laser Line V-Coated Versions Available
  • Diffraction Limited Performance at 1064nm

Sapphire Aspheric Lenses are designed for precision performance in high power applications. Utilizing durable sapphire substrates, these lenses decrease contamination effects on laser performance and feature better thermal conductivity, lower thermally induced focal shift, and faster induced focal shift rise time than fused silica. Designed with material processing and advanced manufacturing in mind, their aspheric surfaces provide diffraction limited performance at 1064nm. Sapphire Aspheric lenses are available uncoated, with a standard laser v-coat, or with custom coatings available upon request.

Note: Exercise caution when using Sapphire Aspheric Lenses in ultrafast laser applications as sapphire can cause non-linear effects.