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infrared
Infrared (IR) is invisible radiant energy, electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometers (frequency 430 THz) to 1 mm (300 GHz) (although people can see infrared up to at least 1050 nm in experiments). Most of the thermal radiation emitted by objects near room temperature is infrared.
Infrared radiation was discovered in 1800 by astronomer Sir William Herschel, who discovered a type of invisible radiation in the spectrum lower in energy than red light, by means of its effect upon a thermometer. Slightly more than half of the total energy from the Sun was eventually found to arrive on Earth in the form of infrared. The balance between absorbed and emitted infrared radiation has a critical effect on Earth's climate.
Infrared energy is emitted or absorbed by molecules when they change their rotational-vibrational movements. Infrared energy excites vibrational modes in a molecule through a change in the dipole moment, making it a useful frequency range for study of these energy states for molecules of the proper symmetry. Infrared spectroscopy examines absorption and transmission of photons in the infrared energy range.
Infrared radiation is used in industrial, scientific, and medical applications. Night-vision devices using active near-infrared illumination allow people or animals to be observed without the observer being detected. Infrared astronomy uses sensor-equipped telescopes to penetrate dusty regions of space, such as molecular clouds; detect objects such as planets, and to view highly red-shifted objects from the early days of the universe. Infrared thermal-imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.
Thermal-infrared imaging is used extensively for military and civilian purposes. Military applications include target acquisition, surveillance, night vision, homing and tracking. Humans at normal body temperature radiate chiefly at wavelengths around 10 μm (micrometers). Non-military uses include thermal efficiency analysis, environmental monitoring, industrial facility inspections, remote temperature sensing, short-ranged wireless communication, spectroscopy, and weather forecasting.
'm looking for used infrared lights or lasers. I'm open minded to model but looking at Steiner, Surefire, Streamlight, maybe Armasight or Holosun. I do have cash but would probably prefer to trade AR15 and Glock items. I'm located in the Vancouver / PDX area.
Pulsar, Quantum XD38A for sale in very good condition. This was used very little. Works excellent. XD indicates 4x digital zoom (i.e. 8x vs the lower 4x HD model). See last picture for model comparison.
Buyer pays shipping.
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Pulsar Quantum XD38A
Quantum XD38A 2-8x32...
This Re-Verber-Ray Infrared Portable Propane Heater 32,000 BYU's Model P-32T is in EXCELLENT CONDITION!
Tested and works PERFECT!
19 inches tall.
10 inches wide.
5 and 1/2 inches deep.
Instruction and paperwork included.
Original box also included.
$150 Or Best Offer.
Bushnell Equinox 5x32mm Night Vision Monocular with Infrared Illuminator and Video Recording
$138.59 (18% off)
Bushnell Equinox 5x32mm Night Vision Monocular with Infrared Illuminator and Video Recording
Posting my grips for sale
After adjusting my windage and elevation. These were truly point of aim point of impact out of my Glock 22. Great condition. The texture is very aggressive I almost thought it was stippled when I bought them .
These are the infrared model
CMR LG 417 IR
Crimson Trace...
This is lightly used fully functional authentic PEC3 laser light with regular laser and infrared laser and flood light. Comes with pressure pad and uses 123 batteries.
This is real war/battle use equipment.
Retail is between 2-3k$
Type 2, In excellent condition, less than 5 hrs use, 4.5x base magnification, Bobro QD picatinny mount. Includes TNVC additional battery pack and everything in the pics.
Get an AWESOME thermal optic for thousands $$$$ off. Retail is $9500, but it’s been a safe queen and I got bills to pay...
This Surefire X300V-B Weaponlight is new in the box and has never been used. It comes with everything included from the factory, although the box is a bit scrunched on the top.
With high-output white-light, this sealed, recoil-proof weaponlight generates a versatile 350-lumen tactical beam...
Pulsar Challenger Gen 2+ Night Vision Monocular with a Bushnell I-beam IR illuminator. Fantastic introductory night vision setup perfect for hunting, stargazing, and general nighttime activities. $1000. No trades. Feel free to contact me at eight three two 714 8508.
Pictures don't do this...
I have for sale a very lightly used MARS Sight with red dot and integrated IR laser. The cool thing about these is the laser is slaved to the Dot do you only have to zero the dot. Also has a tape switch to control the laser for light discipline.
I got this years ago as a gift for my Tavor and...
Approximately 15-16 IR chemlights, they are past their marked expiration date. Shown is a orange chemlight expiration date of 2016 FOR EXAMPLE. No need as I have no IR related gear.
30 bucks or entertain me with trades
Team warne 30mm scope mount purchased from cabelas unused but not in...
Rare discontinued Crimson Trace IR Laser Grips for Sig Sauer P226 - Mil Std - 810 - IR LG-426M. Infrared Laser.
details here:
Infrared Laser Sight Sig Sauer P226 | Official Crimson Trace
For use with Night Vision only.
Not visible without NV.
Installed on my personal P226 but never fired. I...
SOLD....
ATN X-SIGHT HD 5-18X day/NIGHT RIFLESCOPE. New in box,never used. I did check the night vision out and was pretty amazed at just how far you could actually see clearly. This comes with carry bag, IR LIGHT, and has latest firmware. $450...
I am located in Gresham.
Like New ATN PS-22 Front Mounted Daytime Rifle Scope System. I purchased this new from ATN a couple years ago and haven't had time to use it. This is an amazing device incorporating the highest quality night-vision technology. I guarantee it works like new with no problems or scratches. New...