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UFO Licht Website PMMA Fiber Optic Harnesses
Our range of standard PMMA end lit harnesses are available in either single or multi-strand configurations. We can also make custom harnesses with larger diameter fiber if required.
Our PMMA fiber products are manufactured from Mitsubishi / ESKA raw fiber. We are an offically authorised supplier of Mitsubishi fiber products.
End lit PMMA fiber comes in two configurations - single sheathed or unsheathed strands of 0.25mm, 0.50mm, 0.75mm, 1mm, 1.5mm or 2mm diameter fiber, or as multiple sheathed strands of 0.75mm fiber.
Single strands of fiber give starry points of light and normally require no termination, whilst multi-stranded varieties are normally terminated with a ferrule to allow the attachment of an end fitting.
Larger diameters are available on request with soft silicone at the ends of the tails for use when articulated fittings are used in a tight space for the fiber bend radius.
Technical Information
Ordering Codes
Fiber Specifications
| Core material | Polymethyl Methacrylate |
| Cladding material | Fluorinated Polymer |
| Refractive index | 1.49 |
| Numerical aperture | 0.5 |
| Refractive index profile | Step index |
| Operation temperature range | -55°C to +70°C in low humidity; <60°C at 95% RH (attenuation change is within 10% after 1000 hours except for that due to absorbed water). Please note that fiber can become brittle at lower temperatures. |
| Sheathing specifications | Megolon S540 is a thermoplastic, halogen free cable sheathing compound which exhibits an excellent level of fire retardancy. This product is specifically aimed at designs of cables requiring a good degree of flexibility and the ability to meet the more stringent fire test specifications. |
| S540 Toxicity Index (DEF STAN 02-713) | 0.4 |
| S540 Halogen Acid Gas Evolution (IEC 60754-1) | Zero |
| S540 Flammability Temperature Index (ISO 4589-3) | 330°C |
Fiber Ordering Codes
| Code | Fiber Size | Approx. Active Diameter | Approx. Outer Diameter | Max No. of Tails Per Illuminator* | Minimum Bend Radius | Termination Types [1] |
|---|---|---|---|---|---|---|
| FSPT-1-25-U | CK10 | 0.25mm (0.01") | unsheathed | 8235 | 10mm (0.39") | none |
| FSPT-1-50[2] | CK20 | 0.50mm (0.02") | unsheathed/1.09mm (0.04") | 1890 | 10/15mm (0.39"/0.59") | none |
| FSPT-1-75[2] | CK30 | 0.75mm (0.03") | unsheathed/2mm (0.08") | 990 | 10/15mm (0.39"/0.59") | -/crimp |
| FSPT-1-1[2] | CK40 | 1mm (0.04") | unsheathed/2.2mm (0.09") | 540 | 15/20mm (0.59"/0.79") | crimp/tube |
| FSPT-1-15[2] | CK60 | 1.5mm (0.06") | unsheathed/2.6mm (0.1") | 225 | 25/40mm (0.98"/1.57") | crimp/tube |
| FSPT-1-2[2] | CK80 | 2mm (0.08") | unsheathed/3mm (0.12") | 135 | 30/60mm (1.18"/2.36") | crimp/tube |
| FSPT-4 | 4 | 1.8mm (0.07") | 3.1mm (0.12") | 275 | 20mm (0.79") | tube |
| FSPT-7 | 7 | 2.4mm (0.09") | 4.4mm (0.17") | 150 | 25mm (0.98") | 5mm smooth/tube |
| FSPT-12 | 12 | 3.1mm (0.12") | 4.85mm (0.19") | 83 | 25mm (0.98") | M8/M10/5mm smooth/8mm smooth |
| FSPT-21 | 21 | 4mm (0.16") | 6mm (0.24") | 52 | 28mm (1.1") | M8/M10/5mm smooth/8mm smooth |
| FSPT-25 | 25 | 4.3mm (0.17") | 6.35mm (0.25") | 44 | 30mm (1.2") | M8/M10/5mm smooth/8mm smooth |
| FSPT-33 | 33 | 5mm (0.2") | 7.4mm (0.29") | 33 | 50mm (1.97") | M8/M10/5mm smooth/8mm smooth |
| FSPT-50 | 50 | 6mm (0.24") | 8.7mm (0.34") | 22 | 60mm (2.36") | M8/M10/5mm smooth/8mm smooth |
| FSPT-75 | 75 | 7.5mm (0.29") | 10.1mm (0.4") | 14 | 90mm (3.54") | M10/8mm smooth |
| FSPT-88 | 88 | 8mm (0.31") | 10.7mm (0.42") | 12 | 100mm (3.94") | M10/8mm smooth |
| FSPT-100 | 100 | 8.4mm (0.33") | 11.3mm (0.44") | 11 | 105mm (4.13") | M10/8mm smooth |
| STAR28 | 8 x 1mm 20 x 0.75mm |
5mm (0.20") | 7.75mm (0.30") | 26 | 50mm (1.97") | None |
These fibre sizes are special order only. At times we may hold stock of them but otherwise they will be manufactured to order.
| Code | Fibre Size | Approx. Active Diameter | Approx. Outer Diameter | Max No. of Tails Per Light Source* | Minimum Bend Radius | Termination Types [1] |
|---|---|---|---|---|---|---|
| FSPT-2 | 2 | 1.2mm (0.05") | 2.35mm (0.09") | 495 | 15mm (0.6") | tube |
| FSPT-3 | 3 | 1.5mm (0.06") | 2.7mm (0.11") | 366 | 18mm (0.71") | tube |
| FSPT-5 | 5 | 2mm (0.08") | 3.7mm (0.15") | 220 | 20mm (0.79") | 5mm smooth/tube |
| FSPT-6 | 6 | 2.2mm (0.09") | 4.1mm (0.16") | 183 | 20mm (0.79") | 5mm smooth/tube |
| FSPT-8 | 8 | 2.5mm (0.1") | 4.5mm (0.18") | 135 | 25mm (0.98") | 5mm smooth/tube |
* Note - maximum capacities are stated above. In normal usage we will fill a common end to only 90% of its capacity (or 75% if specified with a Gemini light source). This ensures that a consistent light output is delivered through all fibre tails.
[1] Custom ferrule options are available - please contact us for details.
[2] Codes refer to sheathed product. For unsheathed please suffux code with '-U'.