AvaLight-DHS, Deuterium-Halogen Light Source
The AvaLight-DH-S is a combined Deuterium and halogen light source which can be used for UV/VIS/NIR applications. The AvaLight-DH-S has an SMA905 connector to be used with fibre optic cables and bundles. For optimal coupling, an adjustable focus lens assembly is included. The light source supplies a continuous spectrum with high efficiency and the highest stability in the UV, visible and near-infrared range from 215-2500 nm.
The Avalight-DH-S was developed based on the shine-through principle, in which the halogen light is focused through a small diameter aperture in the deuterium bulb. The new AvaLight-DH-S-BAL (click here for further info) has a dichroic beam splitter to give a much more balanced spectrum from 200-2500nm.
For UV only applications, the AvaLight-D-S (Deuterium only) source is available.
The standard AvaLight-D(H)S light sources have a special UV longpass filter (>220nm) implemented to protect the fibres from solarising. For applications that require a spectral range below 220nm, a Deep UV bulb is available in which the UV longpass filter is not included. For these Deep UV measurements (from 190nm+), the AvaLight-D(H)S-DUV may be ordered. Recently added to the range is a new long-life and more stable version of the Deuterium lamp (AvaLight-D-B-DUV-LL)
For all Deuterium light sources, solarisation resistant fibres (-SR) are recommended. For the DUV lamp, special solarisation resistant fibres (-SR) are required (see the fibre optics section).
The output of the AvaLight-DHS is optimised for fibres (bundles) with a diameter up to 600µm. For larger diameter fibre bundles, the AvaLight-DH-S SMA connector focal point can be manually adjusted to uniformly fill a larger core diameter fibre cable or bundle.
In all AvaLight-Deuterium sources, an integrated TTL-shutter and filter holder for filters of up to 50 x 50 x 6.5mm are imncluded.
The AvaLight-DH-S internal TTL shutter can be controlled from the AvaSpec spectrometer so the auto-save dark option in the AvaSoft software can be used (an IC-DB15-2 or IC-DB26-2 interface cable is required).
The filter holder can easily be replaced by the direct attach cuvette holder 'CUV-DHS' if preferred (see accessories section) which is useful for fluorescence or absorbance measurements.
Spectral Output of the AvaLight-D-S
Spectral Output of the AvaLight-DH-S
Technical Details
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Lamp Type | |||
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DUV Deuterium |
Deuterium (STD) |
Deuterium (longlife DUV) |
Halogen | |
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Wavelength range |
190-400nm |
215-400nm |
185-400nm |
360-1500nm | |
|
Warm-up time |
30min |
30min |
30min |
20min | |
|
Lamp power |
78W/0.75A |
78W/0.75A |
78W/0.75A |
5W/0.5A | |
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Lamp lifetime |
1000hrs |
1000hrs |
2000hrs |
1000hrs | |
|
Noise (AU) |
2x10-4 |
2x10-4 |
2x10-5 |
10-4 | |
|
Max. drift |
±0.5%/hrs |
±0.5%/hrs |
±0.5%/hrs |
±0.1%/hrs | |
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Colour temperature |
- |
- |
- |
3000K | |
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Optical power in 200µm fibre |
11µW |
7µW |
11µW |
43µW | |
|
Optical power in 600µm fibre |
72µW |
61µW |
72µW |
239µW | |
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Optical power in 1000µm fibre |
206µW |
166µW |
206µW |
354µW | |
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Power consumption |
90 Watt (190 Watt for heating D-lamp 4-5sec.) | ||||
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Power requirements |
100-240VAC 50/60Hz | ||||
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Dimensions/Weight |
315 x 165 x 140mm/ca. 5kg | ||||
50x50mm Filters for use with the AvaLight-DHS
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GL-WG305-3 |
Separate 50 x 50 x 3mm long-pass filter >305nm |
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GL-KG3-3 |
Separate 50 x 50 x 3mm band-pass filter transparent >325nm and <700nm |
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GL-BG28-3 |
Separate 50 x 50 x 3mm band-pass filter transparent >360nm and <500nm |
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GL-GG385-3 |
Separate 50 x 50 x 3mm long-pass filter >385nm |
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GL-GG475-3 |
Separate 50 x 50 x 3mm long-pass filter >475nm |
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GL-OG515-3 |
Separate 50 x 50 x 3mm long-pass filter >515nm |
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GL-OG550-3 |
Separate 50 x 50 x 3mm long-pass filter >550nm |
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GL-OG590-3 |
Separate 50 x 50 x 3mm long-pass filter >590nm |
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GL-NG9-1 |
Separate 50 x 50 x 1mm Neutral Density Filter |
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GL-NG9-2 |
Separate 50 x 50 x 2mm Neutral Density Filter |
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GL-NG9-3 |
Separate 50 x 50 x 3mm Neutral Density Filter |
Ordering Information
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Part Number |
Description |
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AvaLight-D-S |
Deuterium Light Source, 215-400nm, includes TTL-shutter - -SR fibres recommended |
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AvaLight-DH-S |
Deuterium-Halogen Light Source, 215-2000nm, includes TTL-shutter - -SR fibres recommended |
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AvaLight-D-S-DUV |
Deep UV Deuterium Light Source, 190-400nm, includes TTL-shutter - -SR fibres required |
|
AvaLight-DH-S-DUV |
Deep UV Deuterium-Halogen Light Source, 190-2000nm, includes TTL-shutter - -SR fibres required |
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IC-DB15-2 |
Interface Cable – AvaSpec-USB1 to AvaLight-D(H)S |
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IC-DB26-2 |
Interface Cable – AvaSpec-USB2 to AvaLight-D(H)S |
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AvaLight-D-B |
Deuterium Replacement Bulb for AvaLight-D/DH-S light source |
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AvaLight-D-B-DUV |
DUV Deuterium Replacement Bulb for AvaLight-D/DH-S-DUV light source |
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AvaLight-D-B-DUV-LL |
Long life (2000hrs) DUV Deuterium Replacement Bulb for AvaLight-D/DH-S-DUV light source |
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AvaLight-DH-B |
Halogen Replacement Bulb for AvaLight-DH-S/-DUV light source |
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CUV-DHS |
Direct-Attach Cuvette holder for AvaLight-DH-S |
