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Products / 光學產品 / Optical Lenses / Double-Concave Lenses / 無鍍膜雙凹 (DCV) 透鏡
檢視所有 13 產品系列

TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
20mm Dia. x -20mm FL, Uncoated, Double-Concave Lens

Stock #32-990
NT$918
×
Qty 1-9
NT$918
Qty 10
NT$826
Volume Pricing
Request a Quote
Diameter (mm):
20.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-20.00
Back Focal Length BFL (mm):
-20.55
Coating:
Uncoated
Substrate:
N-SF11
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Clear Aperture CA (mm):
19.00
Center Thickness CT (mm):
2.00
Center Thickness Tolerance (mm):
±0.1
Centering (arcmin):
<1
Bevel:
Protective bevel as needed
Edge Thickness ET (mm):
5.03
f/#:
1.00
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Numerical Aperture NA:
0.50
Radius R1=-R2 (mm):
-31.82
Type:
Double-Concave Lens
Wavelength Range (nm):
400 - 2500

Regulatory Compliance

RoHS 2015:
Compliant
×
REACH 201:
Compliant
×

產品系列說明

  • 波長範圍是350-2200nm
  • 憑藉精密的直徑及同軸性容差可輕鬆實現OEM整合
  • 提供各種直徑及焦距
  • 提供附加抗反射鍍膜選擇：MgF2、VIS 0°、VIS-NIR、NIR I及NIR II

雙凹 (DCV) 透鏡具有兩個向內彎曲的曲面以及負焦距。它們用於影像縮小及散射光線

技術資訊

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