20.0mm Dia. x 40.0mm FL, NIR II Coated, Plano-Convex Lens

Diameter (mm):

20.00 +0.0/-0.025

Effective Focal Length EFL (mm):

40.00 @ 587.6nm

Back Focal Length BFL (mm):

36.77

Coating:

NIR II (750-1550nm)

Coating Specification:

R_abs ≤1.5% @ 750 - 800nm
R_abs ≤1.0% @ 800 - 1550nm
R_avg ≤0.7% @ 750 - 1550nm

N-BK7

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Focal Length Tolerance (%):

±1

Centering (arcmin):

Center Thickness CT (mm):

4.90 ±0.10

Edge Thickness ET (mm):

2.32

Radius R₁ (mm):

20.67

Clear Aperture CA (mm):

f/#:

Numerical Aperture NA:

0.25

Type:

Plano-Convex Lens

Bevel:

Protective bevel as needed

Typical Energy Density Limit:

8 J/cm² @ 1064nm, 10ns

Wavelength Range (nm):

750 - 1550

8 J/cm² @ 1064nm, 10ns

Regulatory Compliance

RoHS 2015:

Compliant

Reach 224:

Compliant

Certificate of Conformance:

View

Product Family Description

New Lower Price!
AR Coated to Provide <0.7% Reflectance per Surface for 750 - 1550nm
Designed for 0° Angle of Incidence
Various Coating Options: Uncoated, MgF₂, VIS 0°, VIS-NIR, NIR I, VIS-EXT, and YAG-BBAR

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
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20mm Inner Single Optic Mount	Fixed	#38-754	S$46.50 Qty 5+ S$43.95 Request Quote	3-5 days ×