Name: 25.4mm Dia. x 50.8mm FL, Uncoated, ISP Optics Silicon (Si) Aspheric Lens | ASPH-SI-25-50
Brand: ISP Optics
SKU: 24-883
Price: ₹40,629.00

25.4mm Dia. x 50.8mm FL, Uncoated, ISP Optics Silicon (Si) Aspheric Lens | ASPH-SI-25-50

Stock #24-883 New 10 to 12 days

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₹40,629.00

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₹40,629.00

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Diameter (mm):

25.40 +0.00/-0.13

Effective Focal Length EFL (mm):

50.80

Numerical Aperture NA:

0.25

Back Focal Length BFL (mm):

48.38

Silicon (Si)

Coating:

Uncoated

Centering, ETD (μm):

<20

Surface Quality:

60-40

Clear Aperture CA (mm):

22.86

Edge Thickness ET (mm):

2.40

Center Thickness CT (mm):

3.00 ±0.20

f/#:

2.00

Bevel:

Protective bevel as needed

Shape of Back Surface:

Concave

Wavelength Range (nm):

1200 - 7000

Conjugate Distance:

Infinite

Surface Roughness (Angstroms):

<100 Ra

Irregularity (P-V) @ 632.8nm:

λ/4

Model Number:

ASPH-SI-25-50

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

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Product Family Description

Transmission from 1.2 - 7μm
Diffraction-Limited Performance
Available Uncoated or HDAR Coated for 3 - 5μm

ISP Optics Silicon (Si) Aspheric Lenses provide diffraction-limited performance for weight-sensitive, Mid-Wave Infrared (MWIR) applications. Available uncoated for applications in the 1.2 - 7μm range or with a high durability anti-reflection (HDAR) coating in the 3 - 5μm range, these lenses are ideal for harsh environment or black body radiation applications. Silicon features a Knoop Hardness of 1150 making it harder and less brittle than Germanium. ISP Optics Silicon (Si) Aspheric Lenses feature a low density of 2.329g/cm³, making them lightweight alternatives to Germanium and Zinc Selenide.