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檢視所有 39 產品系列

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More
25mm Dia. x 50mm FL, SWIR Coated, Achromatic Lens

Stock #85-984

NT$3,960

Qty 1-5
NT$3,960

Qty 6
NT$3,168

Volume Pricing
Request a Quote

Code V Curves eDrawings: eprt IGES ISO PDF Drawings STEP: stp Zemax: zmx

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比較

Diameter (mm):

25.00 +0.0/-0.025

Effective Focal Length EFL (mm):

50.00

Focal Length Tolerance (%):

±2

Back Focal Length BFL (mm):

43.29

Focal Length Specification Wavelength (nm):

880.00

Clear Aperture CA (mm):

24.00

Centering (arcmin):

Center Thickness CT 1 (mm):

8.00

Center Thickness CT 2 (mm):

4.00

Center Thickness Tolerance (mm):

±0.2

Radius R₁ (mm):

31.69

Radius R₂ (mm):

-28.45

Radius R₃ (mm):

-161.05

Edge Thickness ET (mm):

8.94

Substrate:

N-LAK22 / N-SF6

Surface Quality:

40-20

f/#:

2.00

Numerical Aperture NA:

0.25

Coating:

BBAR (900-1700nm)

Coating Specification:

R_abs ≤1.5% @ 900 - 1700nm
R_avg ≤1.0% @ 900 - 1700nm

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):

750 - 1550

Regulatory Compliance

RoHS:

Compliant

產品系列說明

Designed to Give Increased Resolution and Smaller Spot Sizes for NIR Wavelengths (750-1100nm)
單色光源的球面像差更小(不足2μm)
Broadband AR Coating has <1% Reflectivity Between 750–1550nm

Our new TECHSPEC® Near IR doublets are designed to provide the smallest spot size possible for polychromatic light between 750 and 1100nm. By utilizing our NIR doublets instead of standard doublets designed for the visible, RMS spot diameter can be reduced from 43μm to 22.5μm, for example, when using polychromatic light. Spot size will be smaller when focusing monochromatic sources. Near-IR doublets also reduce spherical aberration and have superior performance when used with a monochromatic source up to 2μm in wavelength. Typical applications for these doublets include: imaging lenses for the near infrared, focusing and expanding of NIR lasers, and focusing/collimating lenses for fiber optics and NIR LEDs.