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檢視所有 5 產品系列

TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
12.5mm Dia x 20mm EFL Hastings Triplet Achromatic Lens

Stock #45-251
NT$3,924
×
Qty 1-5
NT$3,924
Qty 6
NT$3,139
Volume Pricing
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Diameter (mm):
12.50 +0.0/-0.025
Effective Focal Length EFL (mm):
20.00
Focal Length Tolerance (%):
±2
Back Focal Length BFL (mm):
16.31
Focal Length Specification Wavelength (nm):
587.6
Centering (arcmin):
<3
Center Thickness CT (mm):
10.18
Center Thickness A (mm):
7.98
Center Thickness B (mm):
1.10
Center Thickness Tolerance (mm):
±0.3
Radius R1 (mm):
14.95
Radius R2 (mm):
7.34
Radius R3 (mm):
-7.34
Radius R4 (mm):
-14.95
Edge Thickness ET (mm):
7.44
Substrate:
Surface Quality:
40-20
f/#:
1.6
Numerical Aperture NA:
0.31
Coating:
MgF2 (400-700nm)
Coating Specification:
Ravg ≤1.75% @ 400 - 700nm
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Bevel:
Protective bevel as needed
Type:
Achromatic Triplet Lens
Wavelength Range (nm):
400 - 700

Regulatory Compliance

Reach 197:
RoHS 2015:

產品系列說明

  • 獨特的三元件設計
  • MgF2鍍膜
  • 也提供 Steinheil 三片式消色差透鏡

TECHSPEC® Hastings 三片式消色差透鏡採用獨特的三元件設計,提供無畸變的色彩校正檢視效果。本系列透鏡都經過電腦設計以彼此相互溝通,有助於減少及消除「枕形」畸變以及色差和球面像差。TECHSPEC® Hastings 三片式消色差透鏡是由兩個凹面彎月形元件黏合雙凸透鏡所組成。

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