UV detection by fluorescent goggles

  • B
  • Thread starter Xforce
  • Start date
  • #1
73
6

Summary:

How is it feasible to make a portable device for me to check the UV level at anytime, anywhere

Main Question or Discussion Point

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?
 

Attachments

Answers and Replies

  • #2
anorlunda
Staff Emeritus
Insights Author
8,646
5,540
Not quite sunglasses, but UV cameras are easy to find. Some of them come as attachments to your smart phone.
 
  • #3
davenn
Science Advisor
Gold Member
2019 Award
9,255
7,587
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 ?
 
  • Like
Likes berkeman
  • #4
berkeman
Mentor
57,718
7,754
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...11......0....1..gws-wiz-img.....0.KT9cB5WijzA
246803
 
  • #5
pinball1970
Gold Member
700
698
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.
 
  • Like
Likes berkeman
  • #6
"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
 
  • #7
ZapperZ
Staff Emeritus
Science Advisor
Education Advisor
Insights Author
35,806
4,608
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.
 

Related Threads on UV detection by fluorescent goggles

  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
8
Views
478
Replies
5
Views
3K
  • Last Post
Replies
12
Views
213
  • Last Post
Replies
1
Views
415
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
2K
Replies
6
Views
2K
Replies
2
Views
1K
  • Last Post
Replies
15
Views
2K
Top