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75mm Dia. x 300mm FL, VIS-NIR Coated, Achromatic Lens

Name: 75mm Dia. x 300mm FL, VIS-NIR Coated, Achromatic Lens
Brand: TECHSPEC
SKU: 88-597
Price: ₹31,538

Stock #88-597 10 to 12 days Other Coating Options

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₹31,538

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Imaging Lens Selector

Diameter (mm):

75.00 +0.0/-0.025

Effective Focal Length EFL (mm):

300.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

290.62

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

73.5

Centering (arcmin):

Center Thickness CT (mm):

19.59 ±0.20

Center Thickness CT 1 (mm):

13.59 ±0.10

Center Thickness CT 2 (mm):

6.00 ±0.10

Radius R₁ (mm):

184.05

Radius R₂ (mm):

-137.34

Radius R₃ (mm):

-399.33

Edge Thickness ET (mm):

13.97

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

4.00

Numerical Aperture NA:

0.13

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

Certificate of Conformance:

View

Reach 240:

Compliant

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.