eo_logo
 
Product added to cart
All Products / Optics / Optical Lenses / Specialty Lenses / Positive Meniscus Lenses
See all 5 Products in Family

25.4mm Dia x 125mm FL, Uncoated Meniscus Lens

×
Stock #72-431 New 3-5 days
×
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
S$36.25
Qty 1-9
S$36.25
Qty 10+
S$32.63
Volume Pricing
Request Quote
Get Product Downloads
Diameter (mm):
25.40 +0.00/-0.10
Effective Focal Length EFL (mm):
125.00 @ 587.6nm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
f/#:
4.92
Numerical Aperture NA:
0.10
Coating:
Uncoated
Type:
Meniscus Lens
Back Focal Length BFL (mm):
121.10 @ 587.6nm
Center Thickness CT (mm):
3.30 ±0.10
Centering (arcmin):
<3
Clear Aperture CA (mm):
22.86
Design Wavelength DWL (nm):
587.6
Edge Thickness ET (mm):
1.97
Radius R1 (mm):
36.04
Radius R2 (mm):
78.971
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
3 Rings
Irregularity (P-V) @ 632.8nm:
0.5 Rings

Regulatory Compliance

RoHS:
Compliant
×
Certificate of Conformance:
View
×

Product Family Description

  • Positive Meniscus Lens Designs
  • Minimize Spherical Aberration and Reduce Spot Sizes
  • 350 – 2,200nm Wavelength Range

Positive Meniscus Lenses are convex-concave lenses manufactured from N-BK7 optical glass and are designed to minimize spherical aberration and reduce spot sizes in focusing applications. When used to focus a collimated beam, the lenses should be oriented with the convex surface towards to light source to minimize spherical aberration. Combining a positive meniscus lens with another lens in a multi-element optical design will allow for a shortening of the focal length and an increase in the numerical aperture (NA) of a system without introducing significant spherical aberrations. Positive Meniscus Lenses are available with focal lengths ranging from 100 to 300mm in 25.4mm diameters sizes. allowing for easy integration into benchtop systems.