These are simple, low cost open-air holders for low powered quartz tungsten halogen lamps. They are especially useful when you need to place the source close to the sample. Each mount has a 1/4-20 tapped hole on two sides. This allows you to rod mount the lamp vertically or horizontally.
Two Models Available
We offer two models of lamp mounts to hold our 10 to 250 W QTH lamps. Each rod mount includes a 6 ft. (1.8 m) long cable to connect to the appropriate power source.
Table 1 Power Sources
|
This Lamp Mount |
Holds These Lamps |
And Connects to These Power Sources |
| 66305
|
10 and 20 W |
63941
|
QTH Lamp Power Supply, 10 to 20 Watt, 6 VDC |
| 68938
|
Constant Current Power Supply |
| 66306
|
50 and 100 W |
68938
|
Constant Current Power Supply |
| 69931
|
Radiometric Power Supply, 40 to 250 W |
| 66306
|
250 W |
69931
|
Radiometric Power Supply, 40 to 250 W |
Fig. 1 Collimate and focus the lamp output with two lenses
Collimating the Output
Although these lamp mounts do not have condensers, like our lamp housings, you can easily achieve a collimated output with a plano convex lens. A plano convex lens used as shown in Fig. 1 is close to the lowest aberration singlet lens. If you want to re-focus the source, use a second plano convex lens. Since the filaments of some of these lamps are large, you cannot get ideal collimation.
Safety Considerations
Our QTH lamps are specialized incandescent sources similar to domestic light bulbs. They have the same and additional hazards. They produce harmful ultraviolet and a lot of visible and infrared radiation. Do not look directly at the lamps; always wear UV protective glasses or goggles. The lamps and mounts get very hot and should not be touched (touching the lamp, even when cold, will damage the lamp).
