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

12.5mm Dia. x 80mm FL, VIS-NIR, Inked, Achromatic Lens

Name: 12.5mm Dia. x 80mm FL, VIS-NIR, Inked, Achromatic Lens
Brand: TECHSPEC
SKU: 49-331-INK
Price: ₹8,352

Stock #49-331-INK 17 to 22 D=days Other Coating Options

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₹8,352

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Specifications
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Diameter (mm):

12.50 ±0.025

Effective Focal Length EFL (mm):

80.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

78.40

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

11.50

Centering (arcmin):

Center Thickness CT (mm):

3.70 ±0.10

Center Thickness CT 1 (mm):

2.10 ±0.05

Center Thickness CT 2 (mm):

1.60 ±0.05

Radius R₁ (mm):

49.62

Radius R₂ (mm):

-35.73

Radius R₃ (mm):

-103.22

Edge Thickness ET (mm):

3.12

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

6.4

Numerical Aperture NA:

0.08

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Bevel:

Protective bevel as needed

Type:

Achromatic Lens

Wavelength Range (nm):

400 - 1000

Regulatory Compliance

RoHS 2015:

Compliant

REACH 201:

Compliant

Certificate of Conformance:

View

Product Family Description

Designed for 0° Angle of Incidence
Less Than 0.25% Reflectance Per Surface @ 880nm
MgF₂ and VIS 0° Coated Achromats Also Available

TECHSPEC® VIS-NIR Coated Achromatic Lenses consist of two optical components cemented together to form an achromatic doublet. The doublet is computer optimized to correct for on-axis spherical and chromatic aberrations. TECHSPEC® VIS-NIR Coated Achromatic Lenses have visible/near-infrared broadband anti-reflection coating, which is specially optimized to yield maximum transmission (>99%) in the near-infrared. The achromatic lenses reduce reflection to less than 0.25 percent per surface at 880nm. Magnesium Fluoride coated and VIS 0° coated achromats are also available.