Diameter (mm):

25.40 +0.00/-0.025

Effective Focal Length EFL (mm):

100.00 @ 355nm

Back Focal Length BFL (mm):

97.32

Coating:

Laser V-Coat (261.4nm)

Coating Specification:

R_abs <0.25% @ 261.4nm

Fused Silica (Corning 7980)

Surface Quality:

10-5

Power (P-V) @ 632.8nm:

Irregularity (P-V) @ 632.8nm:

λ/10

Focal Length Tolerance (%):

±1

Centering (arcmin):

Center Thickness CT (mm):

4.00 ±0.10

Edge Thickness ET (mm):

2.13

Radius R₁ (mm):

47.61

Clear Aperture CA (mm):

21.59

f/#:

3.94

Numerical Aperture NA:

0.13

Damage Threshold, Pulsed:

3 J/cm² @ 266nm, 20ns, 20Hz

Design Wavelength DWL (nm):

261.4

Type:

Plano-Convex Lens

Bevel:

Protective Bevel As Needed

Regulatory Compliance

RoHS:

Compliant

Product Family Description

Lenses, Mirrors, and Windows Designed for 261.4nm
High Damage Thresholds to Withstand High Energy UV Photons
Ideal for Use with the UVC Photonics Model 261 Laser

Optics for 261.4nm Lasers are manufactured with tight surface tolerances and high laser damage thresholds to meet the demanding needs of UV laser systems. With lenses, mirrors, and windows designed for 261.4nm available, these optics provide a solution for beam focusing, beam steering, and protecting sensitive components. Optics designed for 266nm that work well at 261nm, including filters, beam expanders, and beam shaping optics, are also available along with UV detection and measurement products. Optics for 261.4nm Lasers are ideal for use with UV lasers, such as the UVC Photonics Model 261 Laser, in applications including UV disinfection systems, biomedical fluorescence, and UV Raman spectroscopy. Please contact us if your application requires a 261.4nm optical component with a custom size, geometry, or coating.

Title	Type	Stock Number	Price	Buy
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4	Fixed	#13-787	₹1,445.00 Qty 5+ ₹1,373.00 Request Quote	10 to 12 days ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32	Fixed	#13-788	₹1,445.00 Qty 5+ ₹1,373.00 Request Quote	10 to 12 days ×
25.4mm Optic Dia., 10mm Max Optic Thickness, Optic Mount	Fixed	#64-561	₹2,295.00 Qty 10+ ₹2,066.00 Request Quote	10 to 12 days ×
25.4mm Optic Dia., 13mm Max Optic Thickness, Optic Mount	Fixed	#64-562	₹2,295.00 Qty 10+ ₹2,066.00 Request Quote	10 to 12 days ×
25mm Thick Inner Single Optic Mount		#38-758	₹2,508.00 Qty 5+ ₹2,363.00 Request Quote	10 to 12 days ×
25.4mm Inner Single Optic Mount		#38-756	₹2,508.00 Qty 5+ ₹2,363.00 Request Quote	Contact Us ×
25.0/25.4mm Optic Dia., L-Slot Direct Mount	Fixed	#36-410	₹4,930.00 Request Quote	10 to 12 days ×
25.0/25.4mm Optic Dia., Side Flange Direct Mount	Fixed	#36-414	₹4,930.00 Request Quote	10 to 12 days ×
25.0/25.4mm Optic Dia., L-Slot and Rotation Direct Mount	Adjustable - Rotary	#36-411	₹7,183.00 Request Quote	10 to 12 days ×
25/25.4mm Diameter, C-Mount Thin Optic Mount		#56-353	₹7,353.00 Qty 5+ ₹6,511.00 Request Quote	Contact Us ×
25.0/25.4mm Optic Dia., X-Y Translating Optic Mount	Adjustable - Linear (XY)	#62-956	₹20,145.00 Qty 1+ ₹20,145.00 Request Quote	10 to 12 days ×
25.0/25.4mm Optic Dia., X-Y-Z Translating Optic Mount	Adjustable - Linear (XYZ)	#62-959	₹39,525.00 Qty 5+ ₹35,573.00 Request Quote	10 to 12 days ×
25.0/25.4mm Optic Dia., 5 Axes Optical Mount	Adjustable - Linear (XYZ) & Tip-Tilt	#13-776	₹54,995.00 Qty 5+ ₹52,250.00 Request Quote	10 to 12 days ×

25.4mm Dia. x 100mm FL, 261.4nm Coated, Laser Grade PCX Lens

Regulatory Compliance

Product Family Description