Name: 25mm Dia., 0.63 NA, 350-700nm Coated, NIR Aspheric Lens
Brand: TECHSPEC
SKU: 16-272
Price: $280.00

Diameter (mm):

25.00 +0.00/-0.10

Effective Focal Length EFL (mm):

20.00 @ 780nm

Numerical Aperture NA:

0.63

Back Focal Length BFL (mm):

15.73

S-LAH64

Aspheric Design Wavelength (nm):

780

Coating:

VIS+ (350-700nm)

Coating Specification:

R_avg < 0.5% @ 350 - 700nm @ 0° ±30° AOI
R_abs < 1.5% @ 350 - 700nm @ 0° ±30° AOI

Centering (arcmin):

Surface Quality:

40-20

Clear Aperture CA (mm):

22.5

Edge Thickness ET (mm):

2.30

Center Thickness CT (mm):

7.60 ±0.10

f/#:

0.80

Bevel:

Protective bevel as needed

Shape of Back Surface:

Plano

Wavelength Range (nm):

350 - 700

Conjugate Distance:

Infinite

Asphere Figure Error, RMS @ 632.8nm:

1.2λ

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

Optimized for Applications in the NIR
Uncoated or AR coated versions available
Multiple Design Wavelengths Available

TECHSPEC® Near-Infrared (NIR) Aspheric Lenses are optimized to eliminate spherical aberration in the near-infrared. Manufactured from S-LAH64 or N-BK7 substrates and polished through a computer numerical controlled (CNC) process, these aspheric lenses achieve high precision performance across the NIR spectrum. These NIR aspheric lenses include uncoated substrates designed at 780nm with coating options at 350-700nm, 600-1050nm, or 900-1700nm. TECHSPEC® Near-Infrared (NIR) Aspheric Lenses are available with low numerical aperture designs for applications that require beam shape to be maintained as well as high numerical aperture designs for light-gathering applications. For custom designed CNC polished aspheric lenses, please contact us.

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