H-K9L Double-Concave Lenses — GLH14 Series
From $19 USD
Request a quoteProduct description
Fine-annealed H-K9L optical glass double-concave lenses have two concave surfaces of equal curvature and negative focal length. They diverge incident beams and are used for beam expansion, projection and increasing the focal length of optical systems, including Galilean beam expanders.
Double-concave lenses are generally preferred when the absolute conjugate ratio (object distance divided by image distance) is close to one. Plano-concave lenses are generally preferred for absolute magnification below 0.2 or above 5.
Available coatings: Uncoated; VIS antireflection coating; average reflectance <0.5% over 400–700nm; NIR antireflection coating; average reflectance <0.5% over 650–1050nm; SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm.
Schematic
Dimensions in mm unless otherwise stated.
General specifications
General specifications apply at series level. Signed radius values and surface relations follow the source convention; confirm the model drawing for precision optical design.
- Material
- Fine-annealed H-K9L optical glass
- Surface irregularity
- λ/4 @632.8nm
- Design wavelength
- 587.6nm
- Surface quality
- 60-40
- Diameter tolerance
- +0.0 / -0.1mm
- Center thickness tolerance
- ±0.2mm
- Focal length tolerance
- ±2%
- Centration error
- <3 arcmin
- Refractive index
- 1.5168
- Abbe number
- v = 64.17
Available specifications
USD unit prices. Shipping, taxes and dispatch timing are confirmed with your quotation. Select models and quantities to build your quote list.
55 models
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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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| GLH14-002-002 | Fine-annealed H-K9L optical glass | 2 | -2 | 1 | 1.48 | -2.31 | -2.22 | Uncoated | $30 | ||
| GLH14-002-003 | Fine-annealed H-K9L optical glass | 2 | -2.5 | 1 | 1.38 | -2.81 | -2.74 | Uncoated | $30 | ||
| GLH14-003-003 | Fine-annealed H-K9L optical glass | 3 | -3 | 1 | 1.73 | -3.31 | -3.26 | Uncoated | $28 | ||
| GLH14-003-006 | Fine-annealed H-K9L optical glass | 3 | -6.3 | 1 | 1.34 | -6.62 | -6.67 | Uncoated | $28 | ||
| GLH14-003-010 | Fine-annealed H-K9L optical glass | 3 | -10 | 1 | 1.22 | -10.32 | -10.5 | Uncoated | $28 | ||
| GLH14-004-004 | Fine-annealed H-K9L optical glass | 4 | -4 | 1 | 1.99 | -4.32 | -4.3 | Uncoated | $28 | ||
| GLH14-006-006 | Fine-annealed H-K9L optical glass | 6.3 | -6.3 | 1.5 | 3.06 | -6.78 | -6.75 | Uncoated | $19 | ||
| GLH14-010-010 | Fine-annealed H-K9L optical glass | 10 | -10 | 1.5 | 4.01 | -10.48 | -10.58 | Uncoated | $19 | ||
| GLH14-012-012 | Fine-annealed H-K9L optical glass | 12.5 | -12.5 | 1.5 | 4.81 | -12.48 | -12.64 | Uncoated | $20 | ||
| GLH14-016-016 | Fine-annealed H-K9L optical glass | 16 | -16 | 1.5 | 5.56 | -16.49 | -16.78 | Uncoated | $20 | ||
| GLH14-025-025 | Fine-annealed H-K9L optical glass | 25 | -25 | 2 | 8.36 | -25.66 | -26.16 | Uncoated | $22 | ||
| GLH14-040-040 | Fine-annealed H-K9L optical glass | 40 | -40 | 2.5 | 12.71 | -40.82 | -41.74 | Uncoated | $35 | ||
| GLH14-050-050 | Fine-annealed H-K9L optical glass | 50 | -50 | 3 | 15.77 | -50.99 | -52.15 | Uncoated | $62 | ||
| GLH14-002-002-VIS | Fine-annealed H-K9L optical glass | 2 | -2 | 1 | 1.48 | -2.31 | -2.22 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $37 | ||
| GLH14-002-003-VIS | Fine-annealed H-K9L optical glass | 2 | -2.5 | 1 | 1.38 | -2.81 | -2.74 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $37 | ||
| GLH14-003-003-VIS | Fine-annealed H-K9L optical glass | 3 | -3 | 1 | 1.73 | -3.31 | -3.26 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $35 | ||
| GLH14-003-006-VIS | Fine-annealed H-K9L optical glass | 3 | -6.3 | 1 | 1.34 | -6.62 | -6.67 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $35 | ||
| GLH14-003-010-VIS | Fine-annealed H-K9L optical glass | 3 | -10 | 1 | 1.22 | -10.32 | -10.5 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $35 | ||
| GLH14-004-004-VIS | Fine-annealed H-K9L optical glass | 4 | -4 | 1 | 1.99 | -4.32 | -4.3 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $35 | ||
| GLH14-006-006-VIS | Fine-annealed H-K9L optical glass | 6.3 | -6.3 | 1.5 | 3.06 | -6.78 | -6.75 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $26 | ||
| GLH14-010-010-VIS | Fine-annealed H-K9L optical glass | 10 | -10 | 1.5 | 4.01 | -10.48 | -10.58 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $26 | ||
| GLH14-012-012-VIS | Fine-annealed H-K9L optical glass | 12.5 | -12.5 | 1.5 | 4.81 | -12.48 | -12.64 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $27 | ||
| GLH14-016-016-VIS | Fine-annealed H-K9L optical glass | 16 | -16 | 1.5 | 5.56 | -16.49 | -16.78 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $27 | ||
| GLH14-025-025-VIS | Fine-annealed H-K9L optical glass | 25 | -25 | 2 | 8.36 | -91 | -26.16 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $30 | ||
| GLH14-040-040-VIS | Fine-annealed H-K9L optical glass | 40 | -40 | 2.5 | 12.71 | -40.82 | -41.74 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $46 | ||
| GLH14-040-150-VIS | Fine-annealed H-K9L optical glass | 40 | -150 | 4 | 6.6 | -151.4 | -155.72 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $46 | ||
| GLH14-050-050-VIS | Fine-annealed H-K9L optical glass | 50 | -50 | 3 | 15.77 | -50.99 | -52.15 | VIS antireflection coating; average reflectance <0.5% over 400–700nm | $74 | ||
| GLH14-002-002-NIR | Fine-annealed H-K9L optical glass | 2 | -2 | 1 | 1.48 | -2.31 | -2.22 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $40 | ||
| GLH14-002-003-NIR | Fine-annealed H-K9L optical glass | 2 | -2.5 | 1 | 1.38 | -2.81 | -2.74 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $40 | ||
| GLH14-003-003-NIR | Fine-annealed H-K9L optical glass | 3 | -3 | 1 | 1.73 | -3.31 | -3.26 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $38 | ||
| GLH14-003-006-NIR | Fine-annealed H-K9L optical glass | 3 | -6.3 | 1 | 1.34 | -6.62 | -6.67 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $38 | ||
| GLH14-003-010-NIR | Fine-annealed H-K9L optical glass | 3 | -10 | 1 | 1.22 | -10.32 | -10.5 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $38 | ||
| GLH14-004-004-NIR | Fine-annealed H-K9L optical glass | 4 | -4 | 1 | 1.99 | -4.32 | -4.3 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $38 | ||
| GLH14-006-006-NIR | Fine-annealed H-K9L optical glass | 6.3 | -6.3 | 1.5 | 3.06 | -6.78 | -6.75 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $29 | ||
| GLH14-010-010-NIR | Fine-annealed H-K9L optical glass | 10 | -10 | 1.5 | 4.01 | -10.48 | -10.58 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $29 | ||
| GLH14-012-012-NIR | Fine-annealed H-K9L optical glass | 12.5 | -12.5 | 1.5 | 4.81 | -12.48 | -12.64 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $30 | ||
| GLH14-016-016-NIR | Fine-annealed H-K9L optical glass | 16 | -16 | 1.5 | 5.56 | -16.49 | -16.78 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $30 | ||
| GLH14-025-025-NIR | Fine-annealed H-K9L optical glass | 25 | -25 | 2 | 8.36 | -91 | -26.16 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $34 | ||
| GLH14-040-040-NIR | Fine-annealed H-K9L optical glass | 40 | -40 | 2.5 | 12.71 | -40.82 | -41.74 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $49 | ||
| GLH14-040-150-NIR | Fine-annealed H-K9L optical glass | 40 | -150 | 4 | 6.6 | -151.4 | -155.72 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $49 | ||
| GLH14-050-050-NIR | Fine-annealed H-K9L optical glass | 50 | -50 | 3 | 15.77 | -50.99 | -52.15 | NIR antireflection coating; average reflectance <0.5% over 650–1050nm | $78 | ||
| GLH14-002-002-SWIR | Fine-annealed H-K9L optical glass | 2 | -2 | 1 | 1.48 | -2.31 | -2.22 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $40 | ||
| GLH14-002-003-SWIR | Fine-annealed H-K9L optical glass | 2 | -2.50 | 1 | 1.38 | -2.81 | -2.74 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $40 | ||
| GLH14-003-003-SWIR | Fine-annealed H-K9L optical glass | 3 | -3 | 1 | 1.73 | -3.31 | -3.26 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $38 | ||
| GLH14-003-006-SWIR | Fine-annealed H-K9L optical glass | 3 | -6.3 | 1 | 1.34 | -6.62 | -6.67 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $38 | ||
| GLH14-003-010-SWIR | Fine-annealed H-K9L optical glass | 3 | -10 | 1 | 1.22 | -10.32 | -10.5 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $38 | ||
| GLH14-004-004-SWIR | Fine-annealed H-K9L optical glass | 4 | -4 | 1 | 1.99 | -4.32 | -4.3 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $38 | ||
| GLH14-006-006-SWIR | Fine-annealed H-K9L optical glass | 6.3 | -6.3 | 1.5 | 3.06 | -6.78 | -6.75 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $29 | ||
| GLH14-010-010-SWIR | Fine-annealed H-K9L optical glass | 10 | -10 | 1.5 | 4.01 | -10.48 | -10.58 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $29 | ||
| GLH14-012-012-SWIR | Fine-annealed H-K9L optical glass | 12.5 | -12.5 | 1.5 | 4.81 | -12.48 | -12.64 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $30 | ||
| GLH14-016-016-SWIR | Fine-annealed H-K9L optical glass | 16 | -16 | 1.5 | 5.56 | -16.49 | -16.78 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $30 | ||
| GLH14-025-025-SWIR | Fine-annealed H-K9L optical glass | 25 | -25 | 2 | 8.36 | -91 | -26.16 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $34 | ||
| GLH14-040-040-SWIR | Fine-annealed H-K9L optical glass | 40 | -40 | 2.5 | 12.71 | -40.82 | -41.74 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $49 | ||
| GLH14-040-150-SWIR | Fine-annealed H-K9L optical glass | 40 | -150 | 4 | 6.6 | -151.4 | -155.72 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $49 | ||
| GLH14-050-050-SWIR | Fine-annealed H-K9L optical glass | 50 | -50 | 3 | 15.77 | -50.99 | -52.15 | SWIR antireflection coating; average reflectance <0.5% over 1000–1650nm | $78 | ||
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