K9 Ball Lenses — GLH18 Series
From $22 USD
Request a quoteProduct description
GLH18 ball lenses are made from H-K9L optical glass and are used to improve signal coupling between fibers, emitters and detectors. Other source-listed uses include endoscopy, barcode scanning, sensors and preforms for aspheric lenses.
The short back focal length reduces the lens-to-fiber distance required for fiber-optic coupling. Focal length depends on the refractive index of the material.
All models in this source series are uncoated. Select the diameter, focal length and back focal length from the individual model specifications.
Schematic
Dimensions in mm unless otherwise stated.
K9 optical glass is used over the source-stated 350–2000 nm transmission range. The model table lists H-K9L; the general specifications identify fine-annealed H-K9L. The uncoated transmission chart is an N-BK7 reference curve; confirm applicability to the selected H-K9L model.
General specifications
General specifications apply at series level. The table lists the original model diameter, focal length, back focal length and coating. Source diagrams are references and must not be used as machining drawings; verify the individual model drawing when ordering.
- Material
- Fine-annealed H-K9L optical glass
- Surface irregularity
- λ/4@632.8nm
- Surface quality
- 60-40
- Diameter tolerance
- +/-0.005mm
- Ellipticity (source tolerance)
- ±0.003mm
- Design wavelength
- 587.6nm
- Surface coating
- Uncoated
- RoHS
- Compliant (source statement)
Available specifications
USD unit prices. Shipping, taxes and dispatch timing are confirmed with your quotation. Select models and quantities to build your quote list.
10 models
Choose comparison fields
Compare up to four fields. Expand a model to read every specification.
Dia. = diameter; BFL = back focal length. Units remain shown in each heading.
| Details | Quote | |||||||
|---|---|---|---|---|---|---|---|---|
| GLH18-001 | H-K9L optical glass | 1 | 0.73 | 0.23 | Uncoated | $26 | ||
| GLH18-002 | H-K9L optical glass | 2 | 1.47 | 0.47 | Uncoated | $22 | ||
| GLH18-003 | H-K9L optical glass | 3 | 2.20 | 0.7 | Uncoated | $22 | ||
| GLH18-004 | H-K9L optical glass | 4 | 2.93 | 0.93 | Uncoated | $23 | ||
| GLH18-005 | H-K9L optical glass | 5 | 3.67 | 1.17 | Uncoated | $23 | ||
| GLH18-006 | H-K9L optical glass | 6 | 4.40 | 1.4 | Uncoated | $28 | ||
| GLH18-007 | H-K9L optical glass | 7 | 5.14 | 1.64 | Uncoated | $28 | ||
| GLH18-008 | H-K9L optical glass | 8 | 5.87 | 1.87 | Uncoated | $28 | ||
| GLH18-009 | H-K9L optical glass | 9 | 6.60 | 2.1 | Uncoated | $33 | ||
| GLH18-010 | H-K9L optical glass | 10 | 7.34 | 2.34 | Uncoated | $35 | ||
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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
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