Name: 25mm Dia., 0.67 Numerical Aperture, Uncoated, Low Scatter Asphere
Brand: TECHSPEC
SKU: 20-080
Price: NT$19,647

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Cookie 声明由Cookiebot最后更新于 5/14/25

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25mm Dia., 0.67 Numerical Aperture, Uncoated, Low Scatter Asphere

Specifications

物理和機械特性

Diameter (mm):

25.00 +0.0/-0.025

Centering (arcmin):

Clear Aperture CA (mm):

22.50

Edge Thickness ET (mm):

2.90

Center Thickness CT (mm):

6.00 ±0.10

Bevel:

0.75 x 45°

Shape of Back Surface:

Plano

Surface Roughness (Å):

P4 (<3 defects, ~10Å roughness)

光學特性

Effective Focal Length EFL (mm):

50.00 @ 587.6nm

Numerical Aperture NA:

0.25

Back Focal Length BFL (mm):

46.04 @ 587.6nm

N-BK7

Coating:

Uncoated

Surface Quality:

10-5

f/#:

2.00

Wavelength Range (nm):

390 - 2500

Conjugate Distance:

Infinite

Slope Error Aspheric Side:

0.35μm/mm per 1mm Window

Asphere Figure Error, @ 632.8nm:

λ/4 RMS and 1.25λ PV

Power (diopters):

20.00

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

產品概覽

具有低散射的 P4 級表面粗糙度
具有雷射等級為 10-5 的表面質量
精密 RMS 非球面形狀誤差

TECHSPEC® 低散射非球面透鏡是高品質的 CNC 拋光非球面透鏡，具有符合ISO 10110-8 P4級標準的表面粗糙度和10-5的表面質量。P4級表面粗糙度標準規定了每 10mm 取樣長度的微缺陷需少於3個，是 ISO 10110-8 所列出的光滑表面標準的最高級別。較低的表面粗糙度和10-5的表面品質使得聚焦或準直雷射時的散射率非常低。此外，還可以根據應用要求提供高雷射損傷閾值鍍膜版本。TECHSPEC® 低散射非球面透鏡是高功率雷射應用的理想選擇，適合應用於低散射最為重要的計量及航空太空行業。

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