Name: 75mm Dia. x 400mm FL, VIS-NIR, Inked, Achromatic Lens
Brand: TECHSPEC
SKU: 88-598-INK
Price: ₹29,155.00

75mm Dia. x 400mm FL, VIS-NIR, Inked, Achromatic Lens

Stock #88-598-INK 10 to 12 days Other Coating Options

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₹29,155.00

Qty 1-5
₹29,155.00

Qty 6+
₹24,786.00

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Diameter (mm):

75.00 ±0.025

Effective Focal Length EFL (mm):

400.00

Focal Length Tolerance (%):

±2

Back Focal Length BFL (mm):

392.1

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

73.5

Centering (arcmin):

Center Thickness CT (mm):

17.05 ±0.20

Center Thickness CT 1 (mm):

11.05 ±0.10

Center Thickness CT 2 (mm):

6.00 ±0.10

Radius R₁ (mm):

246.50

Radius R₂ (mm):

-180.92

Radius R₃ (mm):

-526.7

Edge Thickness ET (mm):

12.84

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

5.33

Numerical Aperture NA:

0.09

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:

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

Achromatic lenses consist of two optical components cemented together to form an achromatic doublet which is computer optimized to correct for on-axis spherical and chromatic aberrations. Magnesium Fluoride coated and VIS 0° coated achromats also available.

75mm Dia. x 400mm FL, VIS-NIR, Inked, Achromatic Lens

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Regulatory Compliance

Product Family Description