18mm Dia. x 27mm FL, MgF₂ Coated, Plano-Convex Lens

Diameter (mm):

18.00 -0.025

Effective Focal Length EFL (mm):

27.00 @ 587.6nm

Back Focal Length BFL (mm):

23.23

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Fused Silica (Corning 7980)

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

3 Rings

Irregularity (P-V) @ 632.8nm:

0.5 Rings

Focal Length Tolerance (%):

±1

Centering (arcmin):

Center Thickness CT (mm):

5.50 ±0.10

Edge Thickness ET (mm):

1.62

Radius R₁ (mm):

12.38

Clear Aperture CA (mm):

f/#:

1.5

Numerical Aperture NA:

0.33

Type:

Plano-Convex Lens

Bevel:

Protective bevel as needed

Typical Energy Density Limit:

10 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS:

Compliant

Product Family Description

AR Coated to Provide <1.75% Reflectance per Surface for 400 - 700nm
Designed for 0° Angle of Incidence
Various Coating Options: Uncoated, VIS 0°, VIS-NIR, NIR I, NIR II, VIS-EXT, and YAG-BBAR
Also Available Pre-Mounted in Engraved C-Mount Housings

Plano-Convex (PCX) Lenses have a positive focal length, making them ideal for collecting and focusing light in imaging applications. They are also useful in a variety of applications involving emitters, detectors, lasers, and fiber optics. Coated versions have optimum light transmission. Available in a wide variety of diameters and focal lengths.

Title	Type	Stock Number	Price	Buy
18.0mm Optic Dia., Optic Mount	Fixed	#64-558	£22.10 Qty 10+ £19.89 Request Quote	3-4 days ×
18mm Inner Single Optic Mount	Fixed	#38-753	£25.08 Qty 5+ £23.63 Request Quote	3-4 days ×
18mm Diameter, C-Mount Thin Optic Mount	Fixed	#54-617	£40.80 Qty 5+ £36.13 Request Quote	3-4 days ×

18mm Dia. x 27mm FL, MgF2 Coated, Plano-Convex Lens

Regulatory Compliance

Product Family Description

18mm Dia. x 27mm FL, MgF₂ Coated, Plano-Convex Lens