Laser-Line UV Fused Silica Plano-Concave Lenses — GLH23-V Series

From $208 USD

Product description

UV fused silica plano-concave lenses have one flat and one concave surface and a negative focal length. They turn collimated incident light into a diverging beam with a virtual focus and are commonly used in Galilean beam expanders. Orient the concave surface toward the incident beam, with the plane surface toward the focal plane.

Plano-concave lenses provide negative spherical aberration and can compensate aberrations from other lenses in an optical system. For source-recommended conjugate magnitudes below 0.2 or above 5, plano-concave lenses are generally selected; double-concave lenses are often used between these values.

Available coatings: Laser-line V antireflection coating; Ravg<0.25 at 532nm; Laser-line V antireflection coating; Ravg<0.25 at 1064nm.

Plano-concave lens geometry diagram for GLH23-V series — Schematic
Dimensions in mm unless otherwise stated.

UV fused silica provides transmission from 185 nm to 2.1 μm, with low thermal expansion, high homogeneity, chemical resistance and low fluorescence.

Laser-line V coatings are designed for 532 nm and 1064 nm high-power lasers. Damage thresholds are 6.8 J/cm² at 532 nm and 20 J/cm² at 1064 nm, both specified for 20 ns pulses at 0° incidence; select the matching coating and per-model threshold.

V coatings minimize reflection within a narrow wavelength band and are intended for the specified incidence range. The reflectance curves retain their original percentage axes; the per-model Ravg value follows the source specification, which omits its unit.

General specifications

General specifications apply at series level; refer to each model for its dimensions, material and coating.

Material: UV fused silica

Surface irregularity: λ/4 @632.8nm

Design wavelength: 587.6 nm

Surface quality: 40-20

Diameter tolerance: +0.0 / -0.1 mm

Center thickness tolerance: ±0.2 mm

Focal length tolerance: ±2%

Centration error: <3 arcmin

Angle of incidence: 0°

Clear aperture: ≥90% of diameter

Refractive index: 1.46

Abbe number: v = 67.82

Edge bevel: 0.2mm×45°

Laser damage threshold: See per-model specifications

Available specifications

USD unit prices. Shipping, taxes and dispatch timing are confirmed with your quotation. Select models and quantities to build your quote list.

20 models

Dia. = diameter; CT = center thickness; ET = edge thickness; BFL = back focal length. Units remain shown in each heading.

											Quote
GLH23-025-035-V532	UV fused silica	25.4	-35	2	8.24	-36.37	-16.05	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-035-V532

GLH23-025-040-V532	UV fused silica	25.4	-40	1.5	6.61	-41.03	-18.34	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-040-V532

GLH23-025-050-V532	UV fused silica	25.4	-50	2	5.84	-51.37	-22.92	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-050-V532

GLH23-025-075-V532	UV fused silica	25.4	-75	2	4.43	-76.37	-34.39	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-075-V532

GLH23-025-100-V532	UV fused silica	25.4	-100	2	3.79	-101.37	-45.85	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-100-V532

GLH23-025-150-V532	UV fused silica	25.4	-150	2	3.18	-151.37	-68.77	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-150-V532

GLH23-025-175-V532	UV fused silica	25.4	-175	2	3.01	-176.37	-80.23	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-175-V532

GLH23-025-200-V532	UV fused silica	25.4	-200	2	2.88	-201.38	-91.7	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-200-V532

GLH23-025-250-V532	UV fused silica	25.4	-250	2	2.77	-251.37	-114.62	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-250-V532

GLH23-025-400-V532	UV fused silica	25.4	-400	2	2.44	-401.37	-183.39	Laser-line V antireflection coating; Ravg<0.25 at 532nm	6.8J/cm²@532nm,20ns	$208	Quantity for GLH23-025-400-V532

GLH23-025-035-V1064	UV fused silica	25.4	-35	2	8.24	-36.37	-16.05	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-035-V1064

GLH23-025-040-V1064	UV fused silica	25.4	-40	1.5	6.61	-41.03	-18.34	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-040-V1064

GLH23-025-050-V1064	UV fused silica	25.4	-50	2	5.84	-51.37	-22.92	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-050-V1064

GLH23-025-075-V1064	UV fused silica	25.4	-75	2	4.43	-76.37	-34.39	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-075-V1064

GLH23-025-100-V1064	UV fused silica	25.4	-100	2	3.79	-101.37	-45.85	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-100-V1064

GLH23-025-150-V1064	UV fused silica	25.4	-150	2	3.18	-151.37	-68.77	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-150-V1064

GLH23-025-175-V1064	UV fused silica	25.4	-175	2	3.01	-176.37	-80.23	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-175-V1064

GLH23-025-200-V1064	UV fused silica	25.4	-200	2	2.88	-201.38	-91.7	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-200-V1064

GLH23-025-250-V1064	UV fused silica	25.4	-250	2	2.77	-251.37	-114.62	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-250-V1064

GLH23-025-400-V1064	UV fused silica	25.4	-400	2	2.44	-401.37	-183.39	Laser-line V antireflection coating; Ravg<0.25 at 1064nm	20J/cm²@1064nm,20ns	$208	Quantity for GLH23-025-400-V1064

Curves

Typical transmission or coating performance. Refer to the model’s coating range.

Technical notes

Review the material, dimensions and other specifications listed for the individual model. Check any available curves against the model's stated operating range.

Illustrations and printable specification summaries are reference information, not manufacturing drawings. Confirm technical suitability and final requirements with your quotation.

Quote list

Choose models and quantities above. Your list is saved in this browser and can include models from other product categories.