UV Fused Silica Negative Meniscus Lenses — GLA26 Series
From $89 USD
Request a quoteProduct description
GLA26 negative meniscus lenses are made from UV fused silica and combine one convex surface with one concave surface. They are thinner at the center than at the edge, diverge light, and are designed to reduce spherical aberration.
Negative meniscus lenses are commonly used in beam expanders. Combined with other lenses they can increase focal length and reduce numerical aperture.
For GLA26 beam divergence, the source recommends orienting the convex surface toward the incident beam.
Schematic
Dimensions in mm unless otherwise stated.
Available per-model coatings: Uncoated; UV antireflection coating; average reflectance <0.5% over 250–400nm; A-band antireflection coating; average reflectance <0.5% over 350–700nm; B-band antireflection coating; average reflectance <0.5% over 650-1100nm; C-band antireflection coating; average reflectance <0.5% over 1050-1700nm.
UV fused silica has a source-stated transmission range of 185 nm to 2.1 μm, low thermal expansion, high homogeneity, chemical resistance and low fluorescence. The UV model band is 250–400 nm; the supplied generic UV reflectance curve is preserved as provided and is not a wider per-model coating specification.
Antireflection coatings reduce surface reflections and ghost images. Fixed lens mounts, including mounts with SM05, SM1 or SM2 threads, are separate components; check clearance for high-curvature lenses.
General specifications
General specifications apply at series level. R1 and R2 retain the positive source convention even for negative-focus models; no surface sign is inferred. Optical power values retain the source values; the source field does not specify a unit. Model drawings take precedence for precision design.
- Material
- UV fused silica
- Surface irregularity
- λ/4 @632.8nm
- Design wavelength
- 546nm
- Surface quality
- 40-20
- Diameter tolerance
- +0.0 / -0.1 mm
- Focal length tolerance
- ±1%
- Centration error
- <3 arcmin
- Refractive index
- 1.46
- Clear aperture
- >90% of diameter
- Edge bevel
- 0.2mm×45°
Available specifications
USD unit prices. Shipping, taxes and dispatch timing are confirmed with your quotation. Select models and quantities to build your quote list.
30 models
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Dia. = diameter; CT = center thickness; ET = edge thickness; BFL = back focal length. Units remain shown in each heading.
| Details | Quote | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GLA26-025-100 | UV fused silica | 25.4 | -100 | 3 | 4.9 | -99.3 | 150 | 35 | -10 | Uncoated | $89 | ||
| GLA26-025-150 | UV fused silica | 25.4 | -150 | 3 | 4.2 | -149.1 | 150 | 47 | -6.7 | Uncoated | $89 | ||
| GLA26-025-200 | UV fused silica | 25.4 | -200 | 3.5 | 4.5 | -198.5 | 150 | 56.6 | -5 | Uncoated | $89 | ||
| GLA26-025-300 | UV fused silica | 25.4 | -300 | 3.5 | 4.1 | -297.8 | 150 | 71.4 | -3.3 | Uncoated | $89 | ||
| GLA26-025-500 | UV fused silica | 25.4 | -500 | 3.5 | 3.9 | -497.2 | 200 | 106.4 | -2 | Uncoated | $89 | ||
| GLA26-025-1000 | UV fused silica | 25.4 | -1000 | 4 | 4.2 | -995.7 | 300 | 180.8 | -1 | Uncoated | $89 | ||
| GLA26-025-100-UV | UV fused silica | 25.4 | -100 | 3 | 4.9 | -99.3 | 150 | 35 | -10 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-150-UV | UV fused silica | 25.4 | -150 | 3 | 4.2 | -149.1 | 150 | 47 | -6.7 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-200-UV | UV fused silica | 25.4 | -200 | 3.5 | 4.5 | -198.5 | 150 | 56.6 | -5 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-300-UV | UV fused silica | 25.4 | -300 | 3.5 | 4.1 | -297.8 | 150 | 71.4 | -3.3 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-500-UV | UV fused silica | 25.4 | -500 | 3.5 | 3.9 | -497.2 | 200 | 106.4 | -2 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-1000-UV | UV fused silica | 25.4 | -1000 | 4 | 4.2 | -995.7 | 300 | 180.8 | -1 | UV antireflection coating; average reflectance <0.5% over 250–400nm | $124 | ||
| GLA26-025-100-A | UV fused silica | 25.4 | -100 | 3 | 4.9 | -99.3 | 150 | 35 | -10 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-150-A | UV fused silica | 25.4 | -150 | 3 | 4.2 | -149.1 | 150 | 47 | -6.7 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-200-A | UV fused silica | 25.4 | -200 | 3.5 | 4.5 | -198.5 | 150 | 56.6 | -5 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-300-A | UV fused silica | 25.4 | -300 | 3.5 | 4.1 | -297.8 | 150 | 71.4 | -3.3 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-500-A | UV fused silica | 25.4 | -500 | 3.5 | 3.9 | -497.2 | 200 | 106.4 | -2 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-1000-A | UV fused silica | 25.4 | -1000 | 4 | 4.2 | -995.7 | 300 | 180.8 | -1 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $124 | ||
| GLA26-025-100-B | UV fused silica | 25.4 | -100 | 3 | 4.9 | -99.3 | 150 | 35 | -10 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-150-B | UV fused silica | 25.4 | -150 | 3 | 4.2 | -149.1 | 150 | 47 | -6.7 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-200-B | UV fused silica | 25.4 | -200 | 3.5 | 4.5 | -198.5 | 150 | 56.6 | -5 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-300-B | UV fused silica | 25.4 | -300 | 3.5 | 4.1 | -297.8 | 150 | 71.4 | -3.3 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-500-B | UV fused silica | 25.4 | -500 | 3.5 | 3.9 | -497.2 | 200 | 106.4 | -2 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-1000-B | UV fused silica | 25.4 | -1000 | 4 | 4.2 | -995.7 | 300 | 180.8 | -1 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $124 | ||
| GLA26-025-100-C | UV fused silica | 25.4 | -100 | 3 | 4.9 | -99.3 | 150 | 35 | -10 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
| GLA26-025-150-C | UV fused silica | 25.4 | -150 | 3 | 4.2 | -149.1 | 150 | 47 | -6.7 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
| GLA26-025-200-C | UV fused silica | 25.4 | -200 | 3.5 | 4.5 | -198.5 | 150 | 56.6 | -5 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
| GLA26-025-300-C | UV fused silica | 25.4 | -300 | 3.5 | 4.1 | -297.8 | 150 | 71.4 | -3.3 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
| GLA26-025-500-C | UV fused silica | 25.4 | -500 | 3.5 | 3.9 | -497.2 | 200 | 106.4 | -2 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
| GLA26-025-1000-C | UV fused silica | 25.4 | -1000 | 4 | 4.2 | -995.7 | 300 | 180.8 | -1 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $124 | ||
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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.
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