Infrared laser laboratory equipment? Made in France by Groupe Delta, weighs about 10 kg. It has two probes/emitters and then there is this weird metal rod which detects contact with one of the probes. Possible to adjust the frequency of the probes and it seems to measure Watt and energy in Joule. reddit.com/gallery/rjvvna
πŸ‘︎ 22
πŸ’¬︎
πŸ‘€︎ u/asparagus_eater
πŸ“…︎ Dec 19 2021
🚨︎ report
do vein detection devices use infrared lights? and if they do, how do they show infrared light to the naked eyes? I think the reason is that they aren't really using infrared light but a visible light that is close to the infrared frequency. is that it?
πŸ‘︎ 105
πŸ’¬︎
πŸ‘€︎ u/Zpassing_throughZ
πŸ“…︎ Nov 15 2021
🚨︎ report
Were the infrared waves imaged in the CMB once higher-frequency waves?

I'm a little fuzzy on the electromagnetic spectrum. Do all EM waves start out at Gamma rays and then get weaker (lower frequency) over time? Or is it possible for naturally occurring phenomena, like the universe at the time of the Big Bang, to emit waves at a lower frequencies. Obviously man-made equipment can do so...

πŸ‘︎ 8
πŸ’¬︎
πŸ‘€︎ u/memodumpling
πŸ“…︎ Aug 07 2021
🚨︎ report
Do rainbows contain light frequencies that we cannot see? Are there infrared and radio waves on top of red and ultraviolet and x-rays below violet in rainbow?
πŸ‘︎ 9k
πŸ’¬︎
πŸ‘€︎ u/Jmuuh
πŸ“…︎ May 08 2020
🚨︎ report
The 'pistol' every premises use to scan temperature has low infrared frequency
πŸ‘︎ 193
πŸ’¬︎
πŸ‘€︎ u/smooferoakes
πŸ“…︎ Aug 09 2020
🚨︎ report
Infrared Light Frequency

Is there any way to determine the frequency (if it is even called frequency) of an infrared remote. I have heard of different nm remotes and receivers but how do i know which frequency/wavelength of a remote?

πŸ‘︎ 3
πŸ’¬︎
πŸ‘€︎ u/brainy_banana
πŸ“…︎ Dec 23 2020
🚨︎ report
Machine learning finds new metamaterial designs for energy harvesting - Design technique could enable thermophotovoltaic devices that convert specific frequencies of infrared light, waste heat to electricity eurekalert.org/pub_releas…
πŸ‘︎ 66
πŸ’¬︎
πŸ“…︎ Oct 08 2019
🚨︎ report
In the way an optical prism refracts light to show the visible spectrum, are there materials that act as prisms to other frequencies of the greater EM spectrum - eg, something that refracts ionizing radiation to produce a spectrum between Extreme UV and Gamma rays or maybe Far infrared and UHF?
πŸ‘︎ 24
πŸ’¬︎
πŸ‘€︎ u/Wattyear
πŸ“…︎ Aug 14 2019
🚨︎ report
Satellite shown using DEWs in the radio and near-infrared frequencies in NoCal to start fires /r/conspiracy/comments/ip…
πŸ‘︎ 4
πŸ’¬︎
πŸ‘€︎ u/Past_Extreme_421
πŸ“…︎ Sep 09 2020
🚨︎ report
Satellite shown using DEWs in the radio wave and near-infrared frequencies in NoCal to start fires /r/conspiracy/comments/ip…
πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/Past_Extreme_421
πŸ“…︎ Sep 09 2020
🚨︎ report
An Nd:YAG crystal converting an infrared laser beam to a green laser beam by doubling the frequency of the photons.
πŸ‘︎ 331
πŸ’¬︎
πŸ‘€︎ u/iwakan
πŸ“…︎ Feb 03 2018
🚨︎ report
Reading Infrared Frequency and Modulation

Hello r/arduino,

I have an infrared device that I want to replicate. I've tried finding documentation online describing the data needed, but there is none. Without knowing anything about the device-- how can I reproduce the exact infrared beam myself on my own infrared bulb? Is there some type of sensor I can buy that I can connect to my arduino or raspberry pi to record this data for me?

Any help is appreciated.

Thanks!

πŸ‘︎ 2
πŸ’¬︎
πŸ‘€︎ u/jamlx
πŸ“…︎ Jul 23 2020
🚨︎ report
TIL that the seismic waves are no different than sound waves, but at a lower infrared frequency resulting in earthquakes in the same way a strong bass will rattle and vibrate your car seismosoc.org/Publication…
πŸ‘︎ 35
πŸ’¬︎
πŸ‘€︎ u/Perigold
πŸ“…︎ Mar 19 2019
🚨︎ report
Do mirrors reflect only visible lights, or do they reflect light of other frequencies (if so then which types--x-ray, infrared, gamma, etc)?
πŸ‘︎ 340
πŸ’¬︎
πŸ‘€︎ u/14thMarines
πŸ“…︎ Sep 28 2015
🚨︎ report
Researchers found a way to create lasers smaller than red blood cells. These microlasers convert infrared light into light at higher frequencies. This breakthrough will enable technologies for imaging, controlling biological activity with infrared light or light-based computer chips newswise.com/doescience/?…
πŸ‘︎ 41
πŸ’¬︎
πŸ‘€︎ u/QuantumThinkology
πŸ“…︎ Dec 30 2019
🚨︎ report
New simulations suggest graphene can be used to create lasers with tunable frequencies ranging from the infrared to X-rays news.mit.edu/2015/new-way…
πŸ‘︎ 482
πŸ’¬︎
πŸ‘€︎ u/amindwandering
πŸ“…︎ Dec 05 2015
🚨︎ report
Scientists demonstrate passive cooling setup (no power needed) which cools 6 degree C below ambient temperatures (potentially up to 20 C below) by using a shade against direct sunlight, and then radiating out diagonally at mid-infrared frequencies which are harder to trap with greenhouse gases nature.com/articles/s4146…
πŸ‘︎ 33
πŸ’¬︎
πŸ‘€︎ u/stereomatch
πŸ“…︎ Nov 29 2018
🚨︎ report
Why does infrared light feel hotter than visible light even though visible light has a higher frequency?
πŸ‘︎ 7
πŸ’¬︎
πŸ‘€︎ u/content404
πŸ“…︎ Jul 28 2018
🚨︎ report
Fireflies produce a "cold light", with no infrared or ultraviolet frequencies with wavelengths from 510 to 670 nm v.redd.it/heumuo5zwfg11
πŸ‘︎ 52
πŸ’¬︎
πŸ‘€︎ u/Mass1m01973
πŸ“…︎ Aug 16 2018
🚨︎ report
Why are the light sources in frequency domain near-infrared spectroscopy so low in frequency (100 MHz)?

I read on Wikipedia and some other sources that: "NIR laser sources provide an amplitude modulated sinusoid at frequencies near one hundred megahertz (100 MHz)".

I also read that NIRS light is typically in the range of 700 - 2500 nm, which corresponds to a much, much higher frequency than the previously mentioned 100 MHz. This doesn't make much sense to me. Am I not understanding the initial statement, or is my conversion wrong? Maybe it would help if I knew what exactly is meant by "amplitude modulated sinusoid".

Thank you.

πŸ‘︎ 9
πŸ’¬︎
πŸ‘€︎ u/PeacefulChaos379
πŸ“…︎ Jun 29 2017
🚨︎ report
Concerning the photoelectric effect, if an electron's energy is nearly proportional to the frequency of the incident photons, why don't solar panels work on cloudy days? Doesn't UV light, which is higher energy than visible and infrared, pass through clouds?

Or don't current solar panels currently work with UV light? And is there any progress towards engineering solar panels that can work efficiently in the UV range?

πŸ‘︎ 7
πŸ’¬︎
πŸ‘€︎ u/arzthaus
πŸ“…︎ Oct 21 2017
🚨︎ report
Scientists use terahertz spectroscopy to study a single molecule. Terahertz light lies between infrared and microwaves on the electromagnetic spectrum. Its frequency can excite molecules, causing them to vibrate, but its long wavelength makes it near-impossible to be focused onto single molecules. iis.u-tokyo.ac.jp/en/news…
πŸ‘︎ 13
πŸ’¬︎
πŸ‘€︎ u/drewiepoodle
πŸ“…︎ Sep 05 2018
🚨︎ report
Infrared Remote Carrier Frequency

This may be a silly question but here goes.

I'm trying to make a kind of TV-B-Gone device out of the raspberry pi. This device pulses an infrared LED on and off at different intervals which corresponds to an off single sent by a TV remote control.

I have the timings but I'm confused at what is meant by the Carrier Frequency of the LED. I know that this needs to be at 36.09 KHz but not sure how it is controlled. do different LED's output at different carrier frequencies or are they all the same and the carrier frequency is changed in software somehow?

Thanks in advance for any help.

πŸ‘︎ 8
πŸ’¬︎
πŸ‘€︎ u/Xtrato
πŸ“…︎ Nov 29 2012
🚨︎ report
Can a camera record different frequencies of light at the same time? For example, can one camera with a single lens record visible light and infrared at the same time?
πŸ‘︎ 10
πŸ’¬︎
πŸ“…︎ Aug 20 2014
🚨︎ report
The laser generator, which produces a high-frequency beam rendering infrared missiles useless, is typically massive in size. Researchers, led by Professor Li Zhiyuan, could shrink the laser generator down to the size of a suitcase and mount it on aircraft, tanks or even soldiers ibtimes.com/chinese-milit…
πŸ‘︎ 9
πŸ’¬︎
πŸ‘€︎ u/alwayzsuspicious
πŸ“…︎ Sep 27 2015
🚨︎ report

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.