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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC®組件由愛特蒙特光學設計、指定或製造。進一步瞭解

25mm Dia x 75mm FL 3-5μm Coated, Hybrid Ge Aspheric Lens

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Stock #68-266 Clearance 聯絡我們
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NT$33,915
Qty 1-5
NT$33,915
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NT$27,132
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下載產品資料
Diameter (mm):
25.00 +0.0/-0.1
Effective Focal Length EFL (mm):
75.00 @ 4000nm
Numerical Aperture NA:
0.17
Back Focal Length BFL (mm):
72.79
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Germanium (Ge)
Aspheric Design Wavelength (nm):
4000
Asphere Figure Error, RMS @ 632.8nm:
λ/6
Coating:
BBAR (3000-5000nm)
Coating Specification:
Ravg <3.0% @ 3 - 5μm
Surface Accuracy, P-V (μm):
0.3
Centering (arcmin):
≤5
Surface Quality:
60-40
Clear Aperture CA (mm):
24.0
Edge Thickness ET (mm):
2.39
Center Thickness CT (mm):
2.80 ±0.10
f/#:
2.94
Bevel:
Protective bevel as needed
Edges:
Diamond Turned
Radius R2 (mm):
100.8
Shape of Back Surface:
Concave
Type:
Aspheric Lens
Wavelength Range (nm):
3000 - 5000
Conjugate Distance:
Infinite

Regulatory Compliance

RoHS:
Certificate of Conformance:

產品系列說明

  • 對3 – 5μm的光進行光學補正
  • 接近繞射極限對焦效能
  • 提供完整產品說明資料
  • 由於鍺的材料供應鏈中斷,我們的鍺產品的交貨時間可能會增加,價格也會有所變動。欲了解更多訊息,請聯繫我們的客戶服務團隊

TECHSPEC®鍺紅外線 (IR) 混合非球面透鏡能針對 3 – 5μm 區域內的任何波長提供繞射極限對焦效能,在整個3 -5μm光譜範圍內使用時,能提供接近繞射極限的效能。這些透鏡特別適合整合到成像應用、FTIR分光儀,或採用廣波段光源的所有中波紅外線應用中。

每個混合非球面透鏡都具備鍍膜穿透率超過95%,從而能最高效地使用昂貴的紅外線照明。但是,非球面表面自身的繞射效率會限制穿透率,因而在設計光譜區域的兩端會產生較低的整體穿透率。如需客製設計或鍍膜選項,請聯絡我們的銷售部門

 
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