18.0mm Dia. x 20.0mm FL, VIS-NIR Coated, Plano-Convex Lens

Diameter (mm):

18.00 +0.0/-0.025

Effective Focal Length EFL (mm):

20.00 @ 587.6nm

Back Focal Length BFL (mm):

17.59

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

N-SF11

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Focal Length Tolerance (%):

±1

Centering (arcmin):

Center Thickness CT (mm):

4.30 ±0.10

Edge Thickness ET (mm):

1.46

Radius R₁ (mm):

15.70

Clear Aperture CA (mm):

f/#:

1.11

Numerical Aperture NA:

0.45

Type:

Plano-Convex Lens

Bevel:

Protective bevel as needed

Typical Energy Density Limit:

5 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 1000

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

產品系列說明

採用抗反射鍍膜，可為 400 - 1000nm 的光提供每個表面小於 1.25% 的反射率
880nm光的反射率小於0.25%
針對 0° 入射角而設計
多種鍍膜選擇: 無鍍膜, MgF₂, VIS 0°, NIR I, NIR II, VIS-EXT及YAG-BBAR

平凸（PCX）鏡片具有正焦距，是成像應用收光和聚光的理想選擇。它們也可用於多種其他包括發射器、偵測器、雷射和光纖的應用。帶有鍍膜的鏡片能提供最佳透光性。具有各種不同直徑和焦距可供選擇。

These coated lenses are optimized for a wide range of optics and photonics applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms.