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Participant

Join Date: Jun 2007
Posts: 2

Diopter glasses heliomatic technolgie

06/19/2007 9:47 AM

Hi, I want to know something about the technology that is used int the diopter glasses (for reading). There is glasses with Heliomatic option that are getting dark and more dark when the light is getting rised. When is very ligth they are black and when it's dark they are normal.

I whan to know something about this technolgie if it is not a secret?

Thanks Hristo!

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Pathfinder Tags: glass heliomatic
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Guru

Join Date: Nov 2006
Location: KnoxTN
Posts: 1485
Good Answers: 6
#1

Re: Diopter glasses heliomatic technolgie

06/19/2007 9:40 PM

" There is glasses with Heliomatic option that are getting dark and more dark when the light is getting rised."

The manufacture of the glass with the sunlight darkening feature is a proprietary secret achieved by making many many batches of glass and testing them for sensitivity to light.

I have some test samples from a company doing some other work for my employer. They darken rapidly in sunlight and take weeks in total darkness to turn back to clear. That formula required much more adjustment.

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Guru
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Join Date: Jul 2005
Location: South east U.K.
Posts: 3695
Good Answers: 93
#2

Re: Diopter glasses heliomatic technolgie

06/20/2007 5:56 AM

Try searching for 'photochromic glass', it gives lots of results.

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