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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

Spherical Aberration Compensation Plates

Spherical Aberration Compensation Plates

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  • Precision N-BK7 Substrate
  • Optimized for Use in Collimated Light with Small Fields of View
  • Transmitted Wave Front Accurate to λ/16

Many optical systems experience some level of spherical aberrations which result in a loss of image quality and overall system performance. Our line of TECHSPEC® Spherical Aberration Compensation Plates are designed to compensate and correct known amounts of spherical aberration at the specified wavelengths. The aberration plates should be used in collimated space and placed near a pupil. They are excellent for correcting spherical aberrations in systems that have small fields of view.

Common Specifications

Bevel:
Protective as needed
Clear Aperture (%):
>85
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
610
Parallelism (arcmin):
<1
Poisson's Ratio:
0.206
Young's Modulus (GPa):
82
Abbe Number (vd):
64.17
Coating:
Uncoated
Index of Refraction (nd):
1.516
Substrate:
N-BK7
Surface Quality:
60-40
Wavelength Range (nm):
350 - 2200
Coefficient of Thermal Expansion CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)
Density (g/cm3):
2.51

Products

 Aberration  Dia. (mm)  Thickness (mm)   Compare  Stock Number  Price Buy
+0.25λ 12.50 3.00 #66-749 £371.45   Request Quote  
  • 3-4 days
    ×
 
-0.25λ 12.50 3.00 #66-750 £371.45   Request Quote  
  • 3-4 days
    ×
 
+0.50λ 12.50 3.00 #66-751 £371.45   Request Quote  
  • 3-4 days
    ×
 
-0.50λ 12.50 3.00 #66-752 £371.45   Request Quote  
  • 3-4 days
    ×
 
+1.00λ 12.50 3.00 #66-753 £371.45   Request Quote  
  • 3-4 days
    ×
 
-1.00λ 12.50 3.00 #66-754 £371.45   Request Quote  
  • 3-4 days
    ×
 
+0.25λ 25.00 4.00 #66-755 £484.50   Request Quote  
  • 3-4 days
    ×
 
-0.25λ 25.00 4.00 #66-756 £484.50   Request Quote  
  • 3-4 days
    ×
 
+0.50λ 25.00 4.00 #66-757 £484.50   Request Quote  
  • 3-4 days
    ×
 
-0.50λ 25.00 4.00 #66-758 £484.50   Request Quote  
  • 3-4 days
    ×
 
+1.00λ 25.00 4.00 #66-759 £484.50   Request Quote  
  • 3-4 days
    ×
 
-1.00λ 25.00 4.00 #66-760 £484.50   Request Quote  
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Product Details

Spherical Aberration Compensation Plates can be combined to induce the desired amount of compensatory spherical aberration. Negative sign plates create over corrected spherical aberration. Positive plates create under corrected spherical aberration.

Note: The arrow on the spherical aberration compensation plates points in the direction of light travel.

Technical Information