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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 -20mm FL, MgF₂ Coated, Double-Concave Lens

Name: 20mm Dia. x -20mm FL, MgF 2 Coated, Double-Concave Lens
Brand: TECHSPEC
SKU: 32-991
Price: NT$1,155

Stock #32-991

NT$1,155 Other Coating Options

Qty 1-9
NT$1,155

Qty 10+
NT$1,031

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比較

Diameter (mm):

20.00 +0.0/-0.025

Effective Focal Length EFL (mm):

-20.00

Back Focal Length BFL (mm):

-20.55

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

N-SF11

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Clear Aperture CA (mm):

19.0

Center Thickness CT (mm):

2.00

Center Thickness Tolerance (mm):

±0.10

Centering (arcmin):

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

Typical Energy Density Limit:

10 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

產品系列說明

採用抗反射鍍膜，對於400 - 700nm的光可為表面提供小於1.75%的反射率
針對0°入射角而設計
多種鍍膜選擇：無鍍膜、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

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20mm Dia. x -20mm FL, MgF2 Coated, Double-Concave Lens

Regulatory Compliance

產品系列說明

20mm Dia. x -20mm FL, MgF₂ Coated, Double-Concave Lens