Name: 25mm Dia. x 50mm FL, BBAR (1650-3000nm) Coated, Si Plano-Convex Lens
Brand: TECHSPEC
SKU: 21-092
Price: S$352.50

Diameter (mm):

25.00 +0.0/-0.1

Effective Focal Length EFL (mm):

50.00 @ 10.6μm

Back Focal Length BFL (mm):

49.12

Coating:

BBAR (1650-3000nm)

Coating Specification:

R_avg <1% @ 1650 - 3000nm
R_abs <2% @ 1650 - 3000nm

Silicon (Si)

Surface Quality:

60-40

Power (P-V) @ 632.8nm:

2λ

Irregularity (P-V) @ 632.8nm:

λ/2

Centering (arcmin):

Center Thickness CT (mm):

3.00 ±0.10

Edge Thickness ET (mm):

2.35

Radius R₁ (mm):

120.88

Clear Aperture CA (mm):

f/#:

2.00

Numerical Aperture NA:

0.25

Type:

Plano-Convex Lens

Bevel:

Protective bevel as needed

Wavelength Range (nm):

1650 - 3000

Regulatory Compliance

RoHS 2015:

Compliant

Reach 224:

Compliant

Certificate of Conformance:

View

Product Family Description

Wavelength Range of 1.2 - 7μm
Low Density and Dispersion
Focal Lengths of 25 – 250mm Available
Additional Infrared Lenses Available in Popular Substrates

Our TECHSPEC® Silicon Plano-Convex (PCX) Lenses feature precision polished surfaces, making them ideal for a variety of infrared applications, including Near-Infrared (NIR) imaging, and infrared spectroscopy. Available in a variety of focal lengths from f/1 thru f/10, the lenses are offered uncoated or broadband anti-reflection coated. For more information on Silicon properties, please review our guide to selecting The Correct Material for Infrared (IR) Applications.

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