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marke · 1 July 2009, 05:51 AM

Over the last couple of days, where we have had some beautiful weather in the Uk thought I would check how the sun and the UV Rays affect the LUME on the watch, and to see how it charges the LUME.

So Since sunday I have used different sun creams & lotionas with different SUN Protection factors and have noticed the higher the factor the lower the LUME and how bright the display is at night. When the sun cream is spread over the glass of the watch.

Hopefully will get to use SPF2 tomorrow and report back how bright the display is tomorrow.

rinket · 1 July 2009, 05:55 AM

Good idea! I have always wondered about how light affects the Lume I have noticed that sunlight seems to charge a lot better than artificial light. Anyone know why?

smoothmouse · 1 July 2009, 05:59 AM

Must be the enhanced vitamin D in the sunlight that gives it the extra shiny coat!!!

sirjohnbrian · 1 July 2009, 06:06 AM

My first thought is you have too much time on your hands. My second thought is why didn't I do this on my last vacation.

marke · 3 July 2009, 06:54 AM

spf2 the way to go

Lol-x · 3 July 2009, 09:19 AM

You can for around $10 buy a little LED Ultra Violet (UV) torch that will in a matter of seconds activate the luminova on the dial and hands.

Ultra Violet light is what activates the luminova.

NOTE: Ultra Violet light is dangerous to the human eye so if you do get one of these torches, make sure that it is not directly pointed into anyones eye. It might look harmless and it is a cool blue light that looks beautiful, but some children (or adults) may think it funny to point it at someone as a joke. IT IS NOT A TOY.

Porsche · 3 July 2009, 09:28 AM

Quote:

Originally Posted by Lol-x

You can for around $10 buy a little LED Ultra Violet (UV) torch that will in a matter of seconds activate the luminova on the dial and hands.

Ultra Violet light is what activates the luminova.

NOTE: Ultra Violet light is dangerous to the human eye so if you do get one of these torches, make sure that it is not directly pointed into anyones eye. It might look harmless and it is a cool blue light that looks beautiful, but some children (or adults) may think it funny to point it at someone as a joke. IT IS NOT A TOY.

Thanks for the info Steve. Also, another (maybe dumb) question... but does the Luminova "wear" out??? In other words, if it is activated more often, does it lose it's properties faster? I would guess so, but thought I would check.

PS. reason I ask, is that soemtimes at night, I like to "charge up" the lume, if I am going to be somewhere dark. If I'm wearing the lume out faster, I may stop doing it as often!!!

Lol-x · 3 July 2009, 11:01 AM

Hi John

good to see you

I do not think that Luminova has a known life. It seems to go on and on. I don't think I have ever seen anyone report that their Luminova dial will no longer become excited when exposed to UV rays/light.

Tritium would not need any UV rays to excite, but the radiation of the material would start to dim after 11 years. This was a totally different technology from luminova.

1 July 2009, 05:51 AM	#1
marke Banned Join Date: Mar 2008 Real Name: Mark Location: UK Nationwide... Watch: Daytona Posts: 1,842	UV Light and Lume on Dials Over the last couple of days, where we have had some beautiful weather in the Uk thought I would check how the sun and the UV Rays affect the LUME on the watch, and to see how it charges the LUME. So Since sunday I have used different sun creams & lotionas with different SUN Protection factors and have noticed the higher the factor the lower the LUME and how bright the display is at night. When the sun cream is spread over the glass of the watch. Hopefully will get to use SPF2 tomorrow and report back how bright the display is tomorrow.

1 July 2009, 06:06 AM	#4
sirjohnbrian "TRF" Member Join Date: Oct 2008 Location: PA Watch: 'chu lookin' at??? Posts: 964	My first thought is you have too much time on your hands. My second thought is why didn't I do this on my last vacation. __________________ "Clothes make the man. Naked people have little or no influence on society." Mark Twain "Facts are meaningless. You could use facts to prove anything that's even remotely true." Homer Simpson SS Midsize DJ 68274 "L" TT Jubilee DJ 116233 "Z" Sea Dweller DS 116660 "V" SS White Dial Daytona "V"

3 July 2009, 09:19 AM	#6
Lol-x Facilitator Join Date: Nov 2005 Real Name: Steve Location: Omnipresent Posts: 33,588	You can for around $10 buy a little LED Ultra Violet (UV) torch that will in a matter of seconds activate the luminova on the dial and hands. Ultra Violet light is what activates the luminova. NOTE: Ultra Violet light is dangerous to the human eye so if you do get one of these torches, make sure that it is not directly pointed into anyones eye. It might look harmless and it is a cool blue light that looks beautiful, but some children (or adults) may think it funny to point it at someone as a joke. IT IS NOT A TOY. __________________ *Most folks are about as happy as they make up their minds to be.* ~Abraham Lincoln Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy ROLEXploitation - yeah I'm a victim

3 July 2009, 11:01 AM	#8
Lol-x Facilitator Join Date: Nov 2005 Real Name: Steve Location: Omnipresent Posts: 33,588	Hi John good to see you I do not think that Luminova has a known life. It seems to go on and on. I don't think I have ever seen anyone report that their Luminova dial will no longer become excited when exposed to UV rays/light. Tritium would not need any UV rays to excite, but the radiation of the material would start to dim after 11 years. This was a totally different technology from luminova. __________________ *Most folks are about as happy as they make up their minds to be.* ~Abraham Lincoln Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy ROLEXploitation - yeah I'm a victim

1 July 2009, 05:55 AM	#2
rinket "TRF" Member Join Date: May 2009 Location: Jersey Watch: Submariner Posts: 14	Good idea! I have always wondered about how light affects the Lume I have noticed that sunlight seems to charge a lot better than artificial light. Anyone know why?

1 July 2009, 05:59 AM	#3
smoothmouse Member Join Date: Jun 2009 Location: Middle East Watch: GMTIIc Posts: 18	Must be the enhanced vitamin D in the sunlight that gives it the extra shiny coat!!!

3 July 2009, 06:54 AM	#5
marke Banned Join Date: Mar 2008 Real Name: Mark Location: UK Nationwide... Watch: Daytona Posts: 1,842	spf2 the way to go

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