UV detection by fluorescent goggles

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    Detection Uv
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Discussion Overview

The discussion revolves around the feasibility of creating a portable device to detect UV radiation, particularly through the use of fluorescent materials applied to goggles. Participants explore alternative methods for UV detection, considering the limitations of existing measuring devices and the properties of various materials.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using fluorescent materials that absorb UV light and re-emit it as visible light for detection, proposing the idea of applying these materials to goggles.
  • Another participant mentions the availability of UV cameras as an alternative to goggles, noting that some can be attached to smartphones.
  • Concerns are raised about the effectiveness and comfort of UV-blocking clothing, with one participant sharing a link to UV-blocking clothes.
  • A participant references the work of Forrest M. Mims III, who experimented with UV LEDs as passive detectors, suggesting that this could be a cost-effective solution for UV detection.
  • One participant critiques the idea of using fluorescent screens on goggles, arguing that it would render them non-transparent to visible light, thus defeating their purpose.

Areas of Agreement / Disagreement

Participants express a range of ideas and suggestions regarding UV detection methods, with no consensus reached on the best approach. Some participants support the use of fluorescent materials, while others challenge the practicality of this method.

Contextual Notes

Participants discuss various materials and their properties in relation to UV detection, but there are unresolved questions about the effectiveness and practicality of the proposed solutions. The discussion also highlights the potential limitations of existing UV measuring devices.

Who May Find This Useful

This discussion may be of interest to individuals looking for alternative methods to detect UV radiation, those involved in outdoor activities, and researchers exploring innovative approaches to UV measurement.

Xforce
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TL;DR
How is it feasible to make a portable device for me to check the UV level at anytime, anywhere
I need to be able to detect and find shelter against the powerful UV radiation outdoors, since measuring devices are expensive and bulky, I decided to consider another method. Fluorescent materials are able to absorb UV light and re-emit as visible light. That gives me an idea to put fluorescent screens on to a pair of goggles. I researched that most glass and plastic are able to block over 90% of ultraviolet radiation, so there is a requirement for a material transparent to UV and able to deflect of absorb visible light, maybe black paper? Then the luminosity could be able to determine the level of UV radiation.
Solar UV mostly comes in the wavelength of 100-400 nanometers, where 315-400 are called UVA or soft UV, then 280-315 are called UVB. Do people have ideas about what types of materials can be used for these wavelengths?
 

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Not quite sunglasses, but UV cameras are easy to find. Some of them come as attachments to your smart phone.
 
Xforce said:
Summary: How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

I need to be able to detect and find shelter against the powerful UV radiation outdoors,
What powerful UV radiation ?
 
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Xforce said:
Summary: How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

Do people have ideas about what types of materials can be used for these wavelengths?
Some of the people that I do swim workouts with wear long-sleeve UV blocking swim shirts. They look a bit uncomfortable to me, but for folks with super-sensitive skin, I think they work well.

Here is a Google search for UV Blocking Clothes:

https://www.google.com/search?tbm=i...4.664.11...0...1..gws-wiz-img...0.KT9cB5WijzA
246803
 
Xforce said:
Summary: How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

I need to be able to detect and find shelter against the powerful UV radiation outdoors, since measuring devices are expensive and bulky, I decided to consider another method. Fluorescent materials are able to absorb UV light and re-emit as visible light. That gives me an idea to put fluorescent screens on to a pair of goggles. I researched that most glass and plastic are able to block over 90% of ultraviolet radiation, so there is a requirement for a material transparent to UV and able to deflect of absorb visible light, maybe black paper? Then the luminosity could be able to determine the level of UV radiation.
Solar UV mostly comes in the wavelength of 100-400 nanometers, where 315-400 are called UVA or soft UV, then 280-315 are called UVB. Do people have ideas about what types of materials can be used for these wavelengths?
Factor 50 if you are doing prolonged out door work outs and or the clothing suggested by @berkeman.
The UV blocker in the fabric is added to the dye bath during fabric processing (if you are interested- it's also used in the automotive industry for seat belts and upholstery protection)
UV is in sunlight from about 10-400nm some is absorbed by the atmosphere as you know.
If you are out in hot weather and intense sunlight for prolonged periods then protection is better than measurements. Damage potential is there.
There is a reason cricket players wear hats full sleeve shirts and paint their noses white during long matches.
 
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"Summary: How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

I need to be able to detect and find shelter against the powerful UV radiation outdoors, "

One uses an instrument called a UV Radiometer to detect/measure UV light. Professional radiometers are very expensive as you mention. Scientist and author Forrest M. Mims III
has made a discovery that allows a credible UV detector to be made inexpensively. Basically he experimented with UV LEDs to see if they could perhaps they could be used as narrow band UV passive detectors, and sure enough it works. Radio Shack (Tandy Corp) picked up his designs and manufactured the multi-wavelength Sun and Sky Monitoring Station, a multipurpose battery powered detector. You can Google the name of the monitor to find more info and read about Mr. Mims' exploits, measurements, and general design ideas on his webpage at:
http://www.forrestmims.org/publications.html
If you get into it and need explanations, circuit diagrams etc. look me up.

George Dowell
 
Xforce said:
Summary: How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

I need to be able to detect and find shelter against the powerful UV radiation outdoors, since measuring devices are expensive and bulky, I decided to consider another method. Fluorescent materials are able to absorb UV light and re-emit as visible light. That gives me an idea to put fluorescent screens on to a pair of goggles. I researched that most glass and plastic are able to block over 90% of ultraviolet radiation, so there is a requirement for a material transparent to UV and able to deflect of absorb visible light, maybe black paper? Then the luminosity could be able to determine the level of UV radiation.
Solar UV mostly comes in the wavelength of 100-400 nanometers, where 315-400 are called UVA or soft UV, then 280-315 are called UVB. Do people have ideas about what types of materials can be used for these wavelengths?

Your goggles will no longer be transparent to visible light, which means that you can't look through it anymore. It is no longer a pair of goggles.

You could do better just covering it with a cardboard. So much easier and cheaper.

Zz.
 

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