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 0°, Inked, Achromatic Lens

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Stock #49-944-INK 10-15 days
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NT$3,850
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NT$3,850
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NT$3,080
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下載產品資料
Diameter (mm):
20.00 ±0.025
Effective Focal Length EFL (mm):
25.00
Focal Length Tolerance (%):
±1
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 (mm):
12.00 ±0.20
Center Thickness CT 1 (mm):
9.50 ±0.10
Center Thickness CT 2 (mm):
2.50 ±0.10
Radius R1 (mm):
18.03
Radius R2 (mm):
-13.27
Radius R3 (mm):
-55.46
Edge Thickness ET (mm):
8.06
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
40-20
f/#:
1.25
Numerical Aperture NA:
0.40
Coating:
VIS 0° (425-675nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
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):
425 - 675

Regulatory Compliance

RoHS:
Certificate of Conformance:

產品系列說明

  • 設計用於 0°入射角
  • 在 425 - 675nm 的每個表面反射率低於 0.4%
  • 也提供MgF2VIS-NIR抗反射鍍膜鍍消色差透鏡

鍍膜消色差透鏡包含由兩個光學元件黏合而成的膠合透鏡,適合用來修正軸上球差和色差。

 
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