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20mm Dia. x 25mm FL, VIS-NIR, Inked, Achromatic Lens
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TECHSPEC®組件由愛特蒙特光學設計、指定或製造。進一步瞭解
20mm Dia. x 25mm FL, VIS-NIR, Inked, Achromatic Lens

Stock #49-956-INK
NT$3,582
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Qty 1-5
NT$3,582
Qty 6
NT$2,866
Volume Pricing
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Diameter (mm):
20.00 ±0.025
Effective Focal Length EFL (mm):
25.00
Focal Length Tolerance (%):
±2
Back Focal Length BFL (mm):
18.71
Focal Length Specification Wavelength (nm):
587.6
Clear Aperture CA (mm):
19.00
Centering (arcmin):
<1
Center Thickness CT 1 (mm):
9.50
Center Thickness CT 2 (mm):
2.50
Center Thickness Tolerance (mm):
±0.2
Radius R1 (mm):
18.03
Radius R2 (mm):
-13.27
Radius R3 (mm):
-55.46
Edge Thickness ET (mm):
8.06
Substrate:
Surface Quality:
40-20
f/#:
1.25
Numerical Aperture NA:
0.40
Coating:
VIS-NIR (400-1000nm)
Coating Specification:
Rabs ≤0.25% @ 880nm
Ravg ≤1.25% @ 400 - 870nm
Ravg ≤1.25% @ 890 - 1000nm
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Bevel:
Protective bevel as needed
Type:
Achromatic Lens
Wavelength Range (nm):
400 - 1000

Regulatory Compliance

RoHS 2015:
REACH 201:

產品系列說明

  • Designed for 0° Angle of Incidence
  • Less Than 0.25% Reflectance Per Surface @ 880nm
  • MgF2 and VIS 0° Coated Achromats Also Available

消色差透鏡包含由兩個光學透鏡黏合而成的雙合透鏡,其經過電腦優化,非常適合用來修正正軸球面像差和色像差。Magnesium Fluoride coated and VIS 0° coated achromats also available.

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