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Lamp Housing |
The housing provides a temperature controlled, stable environment for the lamp, and protects personnel from the harmful UV radiation emitted by the lamp. A number of safety features are incorporated into the housing to prevent accidental exposure and lamp overheating. The lamp is held by a socket adapter, which places the arc on the condenser axis. Lamp adjusters, located on the outside of the housing, let you precisely adjust the position to compensate for lamp tolerances. |
Power Supply |
The 69907 delivers constant power to the lamp, has superior stability, and can be computer controlled. An RS 232 or optional IEEE-488 (GPIB) interface lets you remotely control and monitor the lamp's power, current, voltage and operating hours. When used in conjunction with the 68950 Light Intensity Controller, you can maintain a very stable source output over the long term (over 12 hours of operation). |
Easily Interchangeable Lamp |
By changing socket adapters, a quick and simple operation, you can operate any of the lamps from Table 1 in the same housing. All sources come with your choice of lamp and appropriate socket adapter; please specify the lamp when ordering a source. Click here for full lamp specifications and dimensions. |
Table 1 50 - 200 W Arc Lamps |
| Lamp Type |
Effective Arc Size |
Lamp Model Number |
Appropriate Socket Adapter Model |
| 75 W Xenon, High Stability |
1.0 x 1.5 mm |
6247 |
66148 |
| 75 W Xenon |
0.4 x 0.8 mm |
6251NS |
66150 |
| 75 W Xenon, OF |
0.4 x 0.8 mm |
6263 |
66150 |
| 100 W Xenon, OF |
0.4 x 0.8 mm |
6257 |
66150 |
| 150 W Xenon |
0.5 x 2.2 mm |
6253 |
66151 |
| 150 W Xenon, UV |
0.5 x 2.2 mm |
6254 |
66151 |
| 150 W Xenon, OF |
0.5 x 2.2 mm |
6255 |
66151 |
| 150 W Xenon, OF |
0.5 x 1.5 mm |
6256 |
66152 |
| 50 W Mercury |
0.2 x 0.35 mm |
6282 |
66158 |
| 100 W Mercury |
0.25 x 0.25 mm |
6281 |
66150 |
| 200 W Mercury |
0.6 x 2.2 mm |
6283NS |
66144 |
| 200 W Hg(Xe) |
0.5 x 1.5 mm |
6291 |
66152 |
| 200 W Hg(Xe), OF |
0.5 x 1.5 mm |
6292 |
66152 |
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Which Source Do I Choose? |
We offer eight complete sources; they differ only in the condensing lens assembly. These range from single element lenses to the aberration compensated, four element Aspherab® Condensers. The new asphere condensers are "corrected optics". Their design ensures that they are corrected spherical aberration and lateral chromatic aberration with minimized longitudinal chromatic aberrations. Make your choice based upon:
•Spectral range
•Beam quality and efficiency
•Output beam size
•Collimated or focused beam
Use Table 2 as a guide during your selection process. |
Table 2 Comparison of Condensers |
| Source |
Condenser Type |
Output Beam |
Output Beam Size |
Lens Multiplication Factor * |
Transmittance Range of Lens Material
(nm) |
Size Series |
| 66906 |
F/1.5, single element fused silica |
Collimated |
1.3 in. (33 mm) |
0.06 |
200 - 2500 |
1.5 inch |
| 66475 |
F/2.2, fused silica asphere |
Collimated |
1.3 in. (33 mm) |
0.05 |
200 - 2500 |
1.5 inch |
| 66476 |
F/2.2, fused silica asphere |
Focused |
0.5 to 3 mm
(lamp dependent) |
0.05 |
200 - 2500 |
1.5 inch |
| 66477 |
F/1, fused silica asphere |
Collimated |
1.3 in. (33 mm) |
0.11 |
200 - 2500 |
1.5 inch |
| 66907 |
F/1, two element fused silica |
Collimated |
1.3 in. (33 mm) |
0.11 |
200 - 2500 |
1.5 inch |
| 66478 |
F/1, fused silica asphere |
Focused |
0.5 to 3 mm
(lamp dependent) |
0.11 |
200 - 2500 |
1.5 inch |
| 66919 |
F/0.85, Pyrex Aspheric |
Collimated |
1.3 in. (33 mm) |
0.13 |
350 - 2500 |
1.5 inch |
| 66908 |
F/0.7, four element borosilicate crown Aspherab |
Collimated |
2.7 in. (69 mm) |
0.18 |
350 - 2500 |
3 inch |
| 66909 |
F/0.7, four element borosilicate fused silica Aspherab |
Collimated |
2.7 in. (69 mm) |
0.2 |
200 - 2500 |
3 inch |
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| *Does not include the rear reflector (included in the source) contribution of ~ 60%. We offer formulae and sample calculations to help you compute the approximate total output power from your source. |
Mounting |
Our lamp housings have adjustable height instrument feet. You can remove these and hard mount the housing to inch or metric optical tables and baseplates. The optical axis is 4.0 inches (102 mm) above the table. To mount a housing to a bench or rail, order the 66075 Carrier Mounting Kit. The kit includes a clamping carrier. |
A Note on Cables |
The appropriate housing to power supply cable is included with each source. If you are ordering a second lamp, of a different type (e.g. Hg vs. Hg(Xe) or Hg vs Xe), you'll need to order an interconnecting cable for the second lamp, separately. |
Extended Care Plan |
You can now extend the warranty on these sources to two years with the Extended Care Plan. Contact us for details. |
Safety Considerations |
Even with these low powered sources, UV radiation and ozone are a concern. The easiest solution to the ozone problem is to use an ozone free arc lamp if you do not need output below ~260 nm. If that is not an option, vent the ozone. Take appropriate UV safety precautions; enclose the beam or wear protective equipment. |
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