QTH Light Source

Light from QTH lamps is emitted by a heated filament. The filament is enclosed in a quartz envelope filled with gases. The spectral distribution is close to that of a blackbody curve with a colour temperature of approximately 3000°K. QTH lamps have a useful spectral output from 300nm to 2.7µm with several advantages: a smooth spectrum without lines, high output in the visible and infrared regions, high temporal and spatial stability, and inexpensive operation.
QTH lamps are standard for photometric applications since they are much brighter than typical IR sources (SiC, ceramic, etc.).For applications where temporal stability is not critical, the high power models can be AC operated. The 120 Hz ripple of AC powered high current bulbs (> 5 A) is well under 1%.The main source of instability is line voltage variation
QTH Light Source
All components of the system, including the light source and monochromator, can be customized. Available options include:
- Scientific Grade Lamp Housing
- Collimated Uniform 1 Inch Diameter Output Beam
- Supports 50W~1000W Quartz Tungsten Halogen (QTH) Lamps
- Forced Air Cooled
- Available Refractive Condensing Optics Attachments
- Touchscreen Power Supply
- Vertically Mounted QTH filament Lamp
- Side Exit Port with Back Spherical Reflector
Optical Configuration
The QTH lamp is mounted in a vertical position with the exit port on the side wall. A back spherical reflector mounted on adjustable alignment pins redirects the rear illumination to the forward exit port thereby doubling the amount of light collected.
QTH Infra Red Custom Solar Simulator
Using a QTH lamp for iluminate test areas of more than 1 meter with a 1 sun intensity. Know more about our Custom Projects on www.Sciencetech-cs.com
QTH on a Tunable monochromatic light Source
Sciencetech also offers a tunable light sorce with QTH lamp. Learn more about our Tunable Light Source Models
Contact us for more info or request a quote
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(201-1K-QTH) Lamp Housing Air Cooled
Sciencetech’s 201-1K-QTH lamp housing allows for vertically mounted 500W-1500W DC operated Quartz Tungs...
USD$2,750.00 -
(201C-100/100Q/100/FS) Collimated Beam Lamp Housing, 100W QTH, 1", Fused Silica
Collimated, uniform, 1 inch diameter output beam Supports 75W-300W QTH Lamps Supports xenon, mercury, &...
USD$2,213.00 -
(201C-100/250Q/100/G) Collimated Beam Lamp Housing, 250W QTH, 1", Glass
Collimated, uniform, 1 inch diameter output beam Supports 75W-300W QTH Lamps Supports xenon, mercury, &...
USD$2,213.00
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(201C-100/250Q/200/FS)Collimated Beam Lamp Housing, 250W QTH, 2", FS
Collimated, uniform, 2 inch diameter output beam Supports 75W-300W QTH Lamps Supports xenon, mercury, &...
USD$2,655.00 -
(201C-100/50Q/200/G) Collimated Beam Lamp Housing, 50W QTH, 2", Glass
Collimated, uniform, 2 inch diameter output beam Supports 75W-300W QTH Lamps Supports xenon, mercury, &...
USD$2,593.00 -
100W QTH Fiber Optic Illuminator
Illuminates Fiber Bundles up to 13mm diameter Visible Light Fiber Illuminator with built-in IR filter 100...
USD$3,300.00