K9 Negative Meniscus Lenses — GLA16 Series
From $31 USD
Request a quoteProduct description
GLA16 negative meniscus lenses are made from Fine-annealed H-K9L optical glass 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.
The two source radii R1 and R2 are listed separately; verify their surface assignment in the model drawing.
Schematic
Dimensions in mm unless otherwise stated.
Available per-model coatings: Uncoated; 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.
The model table lists fine-annealed H-K9L optical glass. Source descriptive text and the uncoated reference chart use N-BK7 terminology; confirm the curve and refractive-index applicability to the selected H-K9L model.
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
- H-K9L optical glass
- Design wavelength
- 587.6 nm
- Surface quality
- 40-20
- RoHS
- Compliant with RoHS requirements
- Diameter tolerance
- +0.0 / -0.1mm
- Thickness tolerance
- ±0.1mm
- Focal length tolerance
- ±1%
- Centration error
- ≤3′
- 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.
28 models
Choose comparison fields
Compare up to four fields. Expand a model to read every specification.
Dia. = diameter; CT = center thickness; ET = edge thickness; BFL = back focal length. Units remain shown in each heading.
| Details | Quote | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GLA16-025-100 | Fine-annealed H-K9L optical glass | 25.4 | -100 | 3 | 4.7 | -98.7 | 100 | 33.7 | -10 | Uncoated | $31 | ||
| GLA16-025-150 | Fine-annealed H-K9L optical glass | 25.4 | -150 | 3 | 4.1 | -148 | 100 | 43.1 | -6.7 | Uncoated | $31 | ||
| GLA16-025-200 | Fine-annealed H-K9L optical glass | 25.4 | -200 | 3 | 3.8 | -197.3 | 100 | 50.2 | -5 | Uncoated | $31 | ||
| GLA16-025-300 | Fine-annealed H-K9L optical glass | 25.4 | -300 | 3 | 3.5 | -297.8 | 250 | 95.1 | -3.3 | Uncoated | $31 | ||
| GLA16-025-400 | Fine-annealed H-K9L optical glass | 25.4 | -400 | 3 | 3.4 | -397 | 250 | 112.5 | -2.5 | Uncoated | $31 | ||
| GLA16-025-500 | Fine-annealed H-K9L optical glass | 25.4 | -500 | 3 | 3.3 | -496.3 | 250 | 126.3 | -2 | Uncoated | $31 | ||
| GLA16-025-1000 | Fine-annealed H-K9L optical glass | 25.4 | -1000 | 3 | 3.2 | -994.6 | 500 | 253.2 | -1 | Uncoated | $31 | ||
| GLA16-025-100-A | Fine-annealed H-K9L optical glass | 25.4 | -100 | 3 | 4.7 | -98.7 | 100 | 33.7 | -10 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-150-A | Fine-annealed H-K9L optical glass | 25.4 | -150 | 3 | 4.1 | -148 | 100 | 43.1 | -6.7 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-200-A | Fine-annealed H-K9L optical glass | 25.4 | -200 | 3 | 3.8 | -197.3 | 100 | 50.2 | -5 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-300-A | Fine-annealed H-K9L optical glass | 25.4 | -300 | 3 | 3.5 | -297.8 | 250 | 95.1 | -3.3 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-400-A | Fine-annealed H-K9L optical glass | 25.4 | -400 | 3 | 3.4 | -397 | 250 | 112.5 | -2.5 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-500-A | Fine-annealed H-K9L optical glass | 25.4 | -500 | 3 | 3.3 | -496.3 | 250 | 126.3 | -2 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-1000-A | Fine-annealed H-K9L optical glass | 25.4 | -1000 | 3 | 3.2 | -994.6 | 500 | 253.2 | -1 | A-band antireflection coating; average reflectance <0.5% over 350–700nm | $45 | ||
| GLA16-025-100-B | Fine-annealed H-K9L optical glass | 25.4 | -100 | 3 | 4.7 | -98.7 | 100 | 33.7 | -10 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-150-B | Fine-annealed H-K9L optical glass | 25.4 | -150 | 3 | 4.1 | -148 | 100 | 43.1 | -6.7 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-200-B | Fine-annealed H-K9L optical glass | 25.4 | -200 | 3 | 3.8 | -197.3 | 100 | 50.2 | -5 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-300-B | Fine-annealed H-K9L optical glass | 25.4 | -300 | 3 | 3.5 | -297.8 | 250 | 95.1 | -3.3 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-400-B | Fine-annealed H-K9L optical glass | 25.4 | -400 | 3 | 3.4 | -397 | 250 | 112.5 | -2.5 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-500-B | Fine-annealed H-K9L optical glass | 25.4 | -500 | 3 | 3.3 | -496.3 | 250 | 126.3 | -2 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-1000-B | Fine-annealed H-K9L optical glass | 25.4 | -1000 | 3 | 3.2 | -994.6 | 500 | 253.2 | -1 | B-band antireflection coating; average reflectance <0.5% over 650-1100nm | $52 | ||
| GLA16-025-100-C | Fine-annealed H-K9L optical glass | 25.4 | -100 | 3 | 4.7 | -98.7 | 100 | 33.7 | -10 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-150-C | Fine-annealed H-K9L optical glass | 25.4 | -150 | 3 | 4.1 | -148 | 100 | 43.1 | -6.7 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-200-C | Fine-annealed H-K9L optical glass | 25.4 | -200 | 3 | 3.8 | -197.3 | 100 | 50.2 | -5 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-300-C | Fine-annealed H-K9L optical glass | 25.4 | -300 | 3 | 3.5 | -297.8 | 250 | 95.1 | -3.3 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-400-C | Fine-annealed H-K9L optical glass | 25.4 | -400 | 3 | 3.4 | -397 | 250 | 112.5 | -2.5 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-500-C | Fine-annealed H-K9L optical glass | 25.4 | -500 | 3 | 3.3 | -496.3 | 250 | 126.3 | -2 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
| GLA16-025-1000-C | Fine-annealed H-K9L optical glass | 25.4 | -1000 | 3 | 3.2 | -994.6 | 500 | 253.2 | -1 | C-band antireflection coating; average reflectance <0.5% over 1050-1700nm | $52 | ||
No matching models. Change or clear your filters.
Curves
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.