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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

9mm Dia x -12mm FL VIS 0° Coated, Negative Achromatic Lens

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Stock #62-481 Clearance In Stock
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C$44.73 C$22.37
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C$44.73 C$22.37
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Diameter (mm):
9.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-12.00
Focal Length Tolerance (%):
±1
Back Focal Length BFL (mm):
-13.78
Focal Length Specification Wavelength (nm):
587.6
Clear Aperture CA (mm):
8.1
Centering (arcmin):
<1
Center Thickness CT (mm):
4.00 ±0.10
Center Thickness CT 1 (mm):
1.50 ±0.05
Center Thickness CT 2 (mm):
2.50 ±0.05
Radius R1 (mm):
-6.98
Radius R2 (mm):
6.98
Radius R3 (mm):
23.22
Edge Thickness ET (mm):
5.79
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7 / N-SF5
Surface Quality:
40-20
f/#:
1.33
Numerical Aperture NA:
0.38
Coating:
VIS 0° (425-675nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Bevel:
Protective bevel as needed
Type:
Negative Achromatic Lens
Wavelength Range (nm):
425 - 675

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are corrected for color and on-axis aberrations. These lenses, consisting of two optical elements cemented together, are commonly used as Barlow lenses to extend focal lengths. TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are available in various diameter sizes and VIS 0° or VIS-NIR coating options.