Name: 140mm Dia x 1900.2mm FL Achromatic Lens, Mtd
Brand: TECHSPEC
SKU: 54-569
Price: A$2,136.00

140mm Dia x 1900.2mm FL Achromatic Lens, Mtd

Stock #54-569 Contact Us

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A$2,136.00

Qty 1-5
A$2,136.00

Qty 6+
A$1,815.60

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Diameter (mm):

140.00 +0.00/-0.12

Effective Focal Length EFL (mm):

1,900.24

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

1887.58

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

123.00

Centering (arcmin):

5.00

Center Thickness CT 1 (mm):

15.42

Center Thickness CT 2 (mm):

10.92

Radius R₁ (mm):

1,131.72

Radius R₂ (mm):

-780.87

Radius R₃ (mm):

-779.37

Radius R₄ (mm):

-2704.01

Edge Thickness ET (mm):

28.61

N-BK7 / N-SF2

Surface Quality:

60-40

f/#:

14.8

Numerical Aperture NA:

0.03

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Mount Thickness (mm):

33.07

Mounting Threads:

M138 x 1.0

Construction:

Mounted, Airspaced 0.10mm

Bevel:

Protective bevel as needed

Type:

Achromatic Lens

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

Offered in Cemented or Air-Spaced Designs
Mounted Versions Available for Easy Integration
Feature MgF₂ Anti-Reflection Coating

TECHSPEC® Large Precision Achromatic Lenses offer near-diffraction limited performance across the designated wavelength range. These color-corrected achromatic lenses feature long focal lengths and are available in either cemented or air-spaced designs. The lenses have a MgF2 anti-reflection coating and are available in diameters up to 140mm. TECHSPEC® Large Precision Achromatic Lenses, in the mounted version, feature a male mounting thread for easy integration into optical systems. Adhesive foil spacers and mounting instructions are included for unmounted, air-spaced achromatic lenses.