Description
Consisting of a unique arc lamp housing tightly coupled to a 0.2 meter monochromator, the Tunable PowerArc™ Illuminator is a self aligned tunable light source that generates milliwatts of intensity and offers the versatility of continuous wavelength and bandwidth selection. The wavelength can be set manually or, for ultimate flexibility, it can be scanned under computer control. The Tunable PowerArc™ Illuminator could not be easier to operate. The system requires no ozone venting, and with the 75 watt xenon lamp no cooling is required. Simply push the start button and dial the wavelength and bandpass of output that you require.
The Tunable PowerArc™ Illuminator covers a broad range of scientific, OEM and research applications such as:
- Detector calibration
- Photochemistry
- Photo-activation
- Photobiology
- Photovoltaics
- Solar simulators
- Spectroscopy
- Optical teaching labs
- Dermatology
At the heart of the PowerArc™ tunable light source housing is a proprietary on-axis ellipsoidal reflector. Our reflectors collect up to 70% of the radiant energy from the arc lamp, as compared with only 12% for typical condenser systems in vertical lamp housings. The ellipse literally wraps around the arc lamp, collecting 5 to 6 times more output power than a conventional system.
The arc source is located at one focal point of the ellipse, and the radiation is reflected by the ellipse to the secondary focus which is actually outside of the lamp housing. Since the light is brought to a focus by reflection rather than refraction (through a lens), there are less losses from absorption or lens-surface back-reflection. This design is so efficient that a PowerArc™ lamp housing can deliver up to 11 times more optical power into a given smaller area than a conventional lamp housing. This is critical when illuminating light guides, monochromator slits, pinholes or other small areas.
| Optical Specifications | ||
|---|---|---|
| Optical power | Up to 20 mW (grating, bandpass & wavelength dependent) | |
| Spot size at slit exit | 5 to 10 mm (lamp and slit dependent) | |
| Diverging beam angle (full) | 14.5 degrees | |
| Numerical aperture (N.A.) | 0.12 | |
| Optical noise | 0.07% RMS | |
| Optical stability | 0.2% | |
| Power Supply Specifications | ||
| 75 Watt Switch Mode Power Supply | 75 to 150 Watt Universal Power Supply | |
| Input (user selectable) | 90–274 V AC, 50–60 Hz | 105–120 V/60 Hz or 210–240 V/50 Hz |
| Power rating | 50 to 100 watts | 0 to 150 watts |
| Operating voltage | 10 to 25 volts | 10 to 24 volts |
| Operating current | 3 to 7 amps | 0 to 8 amps |
| Pre-ignition voltage | 65–75 V DC | > 85 volts |
| Ripple at max current | < 3% peak to peak | < 10 millivolts |
| Stability after warm-up | 0.5% | 0.2% |
| Line voltage regulation | < 0.5% current variation for 5 volts line change | 0.1% current variation for 5 volts line change |
| Monochromator Specifications (using standard 1200 line/mm ruled grating) | ||
| Focal length | 200 mm | |
| Aperture ratio | F/4 (calculated using grating width) | |
| Wavelength range | 180 nm to 2.2 microns (grating dependent) | |
| Bandpass | Continuously adjustable from 0 to 25 nm | |
| Reciprocal linear dispersion | 4 nm/mm | |
| Resolution | 0.25 nm | |
| Scattered light | 0.02% two bandwidths from 365 nm Hg line | |
| Accuracy | +/- 0.25 nm (using motorizing option under computer control) | |
| Reproducibility | +/- 0.25 nm | |
| Grating size | 50 x 50 mm | |
