25mm Dia. x 50mm FL, 266nm Laser V-Coat, λ/20 PCX Lens

Diameter (mm):

25.00 +0.0/-0.1

Effective Focal Length EFL (mm):

50.00 @ 587.6nm

Back Focal Length BFL (mm):

46.00

Coating:

Laser V-Coat (266nm)

Coating Specification:

R_abs <0.25% @ 266nm

Fused Silica

Surface Quality:

20-10

Power (P-V) @ 632.8nm:

λ/4

Irregularity (P-V) @ 632.8nm:

λ/20

Focal Length Tolerance (%):

±1

Centering (arcmin):

Center Thickness CT (mm):

5.84 ±0.10

Edge Thickness ET (mm):

2.13

Radius R₁ (mm):

22.92

Clear Aperture CA (mm):

22.5

f/#:

2.00

Numerical Aperture NA:

0.25

Damage Threshold, Pulsed:

3 J/cm² @ 266nm, 20ns, 20Hz

Design Wavelength DWL (nm):

266

Type:

Plano-Convex Lens

Bevel:

Protective bevel as needed

Regulatory Compliance

RoHS 2015:

Compliant

Reach 209:

Compliant

Product Family Description

λ/20 Surface Accuracy
Available Uncoated or with a Variety of Nd:YAG Laser Coating Options
Includes Full Data Package with Interferogram and Measured Results for Geometric Tolerances

TECHSPEC® λ/20 Plano-Convex (PCX) Lenses are ideal for applications requiring minimal wavefront distortion. TECHSPEC λ/20 Plano-Convex (PCX) Lenses feature the characteristics required for high precision use, including a precision fused silica substrate, λ/20 surface accuracy, and 20-10 surface quality. Each lens is available with a full data package that includes interferogram and measured results for diameter, radius, center thickness, and centration.