@PTC3645

Inventor and supplier of the IR-SENSE and other near-infrared (NIR) photonic and lighting technologies for healthier living.

 Kennesaw, Georgia USA
phosphortech.com
Joined May 2025
  • Tweets836
  • Following128
  • Followers211
285Media
Replying to @PTC3645
I had several people ask about how the IR-SENSE film works with smartphones. This video by @RogerSeheult offers a great summary and a direct link for the discounted @medcram price. youtube.com/watch?v=PLJrvn0u…

See Infrared Light with Your Own Eyes and Testing Situations

Roger Seheult, MD of MedCram explains how to use a filter over your...

youtube.com
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Replying to @PTC3645
Like this?
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PTC STEM retweeted
PTC STEM
@PTC364521h
The only absorption line it got correctly is H2O at 720nm. All the others are wrong!
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PTC STEM retweeted
PTC STEM
@PTC364521h
Here's how I phrased the latest request: "identify the telluric wavelengths on the sunset spectral chart and draw lines corresponding to their position making sure you include the specific wavelength values for each one"
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PTC STEM retweeted
PTC STEM
@PTC364521h
I have a challenge for everyone here. Let's see who can get Grok to correctly annotate the spectral chart of the sunset. It's a simple task of drawing lines that any child should be able to do. For some reason, Grok can't seem to do it no matter how many times I try. Maybe it's just my style in how I phrase the request. Here's the best I got.
🤖 Made with AI
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This looks interesting because EML is what actually matters when you want to eliminate ALAN.
PTC STEM
@PTC3645Oct 25
Replying to @PTC3645
In its current version, the app provides quantitative infrared radiance and equivalent melanopic lux (EML) values by simply pointing the camera at an object or light. For example, we are comparing below the NIR output and EML of a NIR-enhanced lamp to sunlight reflected from a green tree leaf.
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PTC STEM retweeted
PTC STEM
@PTC364518h
Palm tree shadowing sunlight in infrared photography.
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Palm tree shadowing sunlight in infrared photography.
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Visible and near infrared (NIR) photos.
infrared photo using IR-SENSE tech

ALT infrared photo using IR-SENSE tech

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PTC STEM retweeted
PTC STEM
@PTC364521h
Here's the original image.
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I have a challenge for everyone here. Let's see who can get Grok to correctly annotate the spectral chart of the sunset. It's a simple task of drawing lines that any child should be able to do. For some reason, Grok can't seem to do it no matter how many times I try. Maybe it's just my style in how I phrase the request. Here's the best I got.
🤖 Made with AI
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The only absorption line it got correctly is H2O at 720nm. All the others are wrong!
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Here's the original image.
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Here's how I phrased the latest request: "identify the telluric wavelengths on the sunset spectral chart and draw lines corresponding to their position making sure you include the specific wavelength values for each one"
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PTC STEM retweeted
PTC STEM
@PTC3645Oct 26
Replying to @PTC3645 @BlueLightDiet
Here's the same video directly on the X platform, which will make it more accessible to those interested.
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Replying to @mitogenia @PTC3645 @RogerSeheult
recent publication from our team: proof of light emission as a proof of concept and the next stage of the paper mention on this post -> linkinghub.elsevier.com/retr…
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PTC STEM retweeted
PTC STEM
@PTC3645Aug 20
Replying to @BlueLightDiet
You can also retrofit any LED bulb to produce a full spectrum with continuous NIR fairly inexpensively. Check out this video on how that's done: youtube.com/watch?v=VrxHdK15…

Light Biohacking Trick for LEDs: Convert any Standard Light Bulb into Full Spectrum Therapy Device

Deep red and infrared light therapy is currently missing from the b...

youtube.com
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PTC STEM retweeted
PTC STEM
@PTC3645Oct 26
Replying to @PTC3645 @grok
Claude appears to do a better job.
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Spectrum of the sunset over the ocean. When the sun is low on the horizon, sunlight travels through more of the atmosphere, and the blue light is significantly scattered, leaving mostly the longer red and near-infrared (NIR) wavelengths. The red/NIR absorption (telluric) lines are also stronger because some of the longer wavelengths are further attenuated by more water vapor and oxygen in the Earth's atmosphere.
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@grok indicate on the original spectral chart the various telluric lines and the atmospheric gases they correspond to
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Claude appears to do a better job.
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