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High Pulse Rate IR Source

EOC offers a series of miniature pulsed infrared (IR) light sources with high intensity and ability to pulse at high frequencies. Their emission spectrum is that of a gray body.  These IR sources use patented a-CNC films as multilayer thermoresistive elements (see below).  The a-CNC’s durability makes it possible to have a 2 micron thick element with very low thermal mass that allows rapid heating and cooling for pulsing at higher frequencies than any other technology can do.

Check the high efficiency Nanostructure IR Sources with a near black-body emittance. They are high power and also available in SMD packaging.

NovaIR - IR-Source-Thermal-Footprint.jpg

The key advantages of these pulsed sources are:

Wide Spectral Output
1 – 20 μm provides the widest emission spectrum

High Efficiency
With emissivity of >0.8 the spectrum is close to that of a black body

Fast Response
These IR sources can be modulated at a frequency of over 100 Hz because the sources’ membranes are only 2 microns thick with very low thermal mass.

Operates at Higher Temperatures
Achieves its efficiency by operating at a higher temperature than competing technologies

Long Life and Cost Effective
With a lifetime of up to 25,000 hours and absence of any need for separate modulation, maintenance and product cost are reduced

Windows for Explosive Gases and Harsh Environments
NovaIR offers as an option detectors with windows for applications with explosive gasses or harsh environments

Custom Design
Custom design of IR sources is available.

Unique technology
These IR sources are based on proprietary conducting amorphous carbon nanocomposite (a-CNC) films as multilayer thermoresistive elements. High emissivity, high thermal conductivity and low thermal mass (2 microns thick) made possible by the high strength of the a-CNC material allow rapid heating and cooling for pulsed operations at higher frequencies than can be achieved with competing technologies. The IR pulsable light sources are fabricated using MEMS technology.

NovaIR - ir_pulsable_sources_schematic.gif
Schematic cross section of the infrared light source chip and the source mounted in a TO-5 housing.
(1) Bonding pads: (2) a-CNC multilayer membrane; (3) silicon support; (4) active emitter area.

Technical Notes on a-CNC:Nanoamorphous Carbon Coatings

Applications:

IR sources for infrared gas detectors for industrial, consumer, research and medical applications:

  • Explosive gas detection systems: detecting methane and other explosive gases
  • Combustion efficiency and stack emissions monitoring systems: measuring CO, CO2, etc.
  • Toxic emission systems: measuring SOx, NOx, NH3
  • Air quality monitoring systems
  • HVAC efficiency: controlling airflow by measuring CO2 concentration
  • Spectrophotometers
  • Patient bedside monitoring systems
  • Anesthesia gas monitoring systems: CO2 and anesthetic gases
  • Noninvasive glucose measurements
  • Automotive engine control and exhaust monitoring

To avoid damaging the IR sources during soldering and cleaning, consider using Sockets

Size
mm/mm2
Modulation
Frequency
Hz
Modulation
Depth
Input Power
Typ/Max mW
Drive C & V
Typ/Max mA/V
Effective Optical GainLifetime
@ 605 C
Package
2.2 x 2.2
4.8
1 - 10099%@10Hz
50%@70Hz
770 / 1000130mA / 5.9V
149mA / 6.7V
100,000 hrsTO-5
TO-39
2.2 x 2.2
4.8
1 - 10099%@10Hz
50%@70Hz
770 / 1000130mA / 5.9V
149mA / 6.7V
100,000 hrsTO-5
TO-39
2.2 x 2.2
4.8
1 - 10099%@10Hz
50%@70Hz
770 / 1000130mA / 5.9V
149mA / 6.7V
8 - 10 X100,000 hrsTO-5
TO-39
2.2 x 2.2
4.8
1 - 10099%@10Hz
50%@70Hz
770 / 1000130mA / 5.9V
149mA / 6.7V
8 - 10 X100,000 hrsTO-5
TO-39
2.2 x 2.2
4.8
1 - 10099%@10Hz
50%@70Hz
770 / 1000130mA / 5.9V
149mA / 6.7V
100,000 hrsKD-DBOG-18
1.7 x 1.7
2.89
1 - 10099%@10Hz
50%@100Hz
690 / 900117mA / 5.9V
134mA / 6.7V
100,000 hrsTO-5
TO-39
1.7 x 1.7
2.89
1 - 10099%@10Hz
50%@100Hz
690 / 900117mA / 5.9V
134mA / 6.7V
100,000 hrsTO-5
TO-39
1.7 x 1.7
2.89
1 - 10099%@10Hz
50%@100Hz
690 / 900117mA / 5.9V
134mA / 6.7V
8 - 10 X100,000 hrsTO-5
TO-39
1.7 x 1.7
2.89
1 - 10099%@10Hz
50%@100Hz
690 / 900117mA / 5.9V
134mA / 6.7V
8 - 10 X100,000 hrsTO-5
TO-39
* Windows λ Range - μmPart Number
Can Only, No Window-CAN
Sapphire0.1 - 5.0-SAP
CaF21.5 - 10-CAF
BaF20.2 - 11-BAF
Silicon with AR coating1.1 - 14-SIL
NovaIR - Intex-IR-Source-3-0411_ani110.gif
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