Name: 25.4mm Dia. x 25.4mm FL, 3 - 5µm BBAR Coated, ISP Optics Silicon (Si) Aspheric Lens | HDAR35-ASPH-SI-25-25
Brand: ISP Optics
SKU: 24-885
Price: NT$21,875

Diameter (mm):

25.40 +0.00/-0.13

Effective Focal Length EFL (mm):

25.40

Numerical Aperture NA:

0.50

Back Focal Length BFL (mm):

23.15

Silicon (Si)

Coating:

BBAR (3000-5000nm)

Coating Specification:

R_avg <0.5% @ 3 - 5μm
R_abs <1.5% @ 3 - 5μm

Centering, ETD (μm):

<20

Surface Quality:

60-40

Clear Aperture CA (mm):

22.86

Edge Thickness ET (mm):

1.73

Center Thickness CT (mm):

3.00 ±0.20

f/#:

1.00

Bevel:

Protective bevel as needed

Shape of Back Surface:

Concave

Wavelength Range (nm):

3000 - 5000

Conjugate Distance:

Infinite

Surface Roughness (Angstroms):

<100 Ra

Irregularity (P-V) @ 632.8nm:

λ/4

Model Number:

HDAR35-ASPH-SI-25-25

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 240:

Compliant

產品系列說明

穿透範圍為 1.2 - 7μm
繞射極限性能
可提供無鍍膜或適用3 - 5μm範圍內的 HDAR 鍍膜

ISP Optics 矽（Si）非球面透鏡為重量敏感的中波紅外（MWIR）應用提供繞射極限性能。無鍍膜版本可用於 1.2 - 7μm 範圍內的應用，高耐久性抗反射鍍膜（HDAR）可用於3 - 5μm範圍內的應用，是惡劣環境或黑體輻射應用的理想選擇。矽的努氏硬度為1150，相比鍺，矽更硬，鍺更脆。ISP Optics 矽非球面透鏡具有 2.329g/cm3 的低密度，因此是鍺和硒化鋅的輕質替代品。