Name: 25mm Dia. x 500mm FL, VIS 0° Coated, UV Double-Convex Lens
Brand: TECHSPEC
SKU: 48-992
Price: $138.00

Diameter (mm):

25.00 +0.0/-0.025

Back Focal Length BFL (mm):

498.85

Effective Focal Length EFL (mm):

500.00

Coating:

VIS 0° (425-675nm)

Coating Specification:

R_avg ≤0.4% @ 425 - 675nm

Fused Silica (Corning 7980)

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Centering (arcmin):

Bevel:

Protective bevel as needed

Center Thickness CT (mm):

3.35

Center Thickness Tolerance (mm):

±0.10

Edge Thickness ET (mm):

3.01

Radius R₁=-R₂ (mm):

457.93

Clear Aperture CA (mm):

24.00

f/#:

20.00

Focal Length Specification Wavelength (nm):

587.6

Focal Length Tolerance (%):

±1

Numerical Aperture NA:

0.03

Type:

Double-Convex Lens

Typical Energy Density Limit:

5 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

425 - 675

5 J/cm² @ 532nm, 10ns

Regulatory Compliance

RoHS 2015:

Compliant

Reach 224:

Compliant

Certificate of Conformance:

View

Product Family Description

Ideal for Imaging Applications
Minimize Aberrations Including Spherical and Coma
Precision Fused Silica Substrate

TECHSPEC® UV Fused Silica Double-Convex (DCX) Lenses, also referred to as bi-convex lenses, have two positive, symmetrical faces with equal radii on both sides. These lenses are generally recommended for finite imaging applications with a conjugate ratio (ratio between object distance and image distance) between 0.2 and 5. At a conjugate ratio of 1, aberrations such as spherical aberration, chromatic aberration, coma, and distortion are minimized or cancelled due to the symmetric lens design.

UV FS Transmission Curve

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