Re: anti reflect coating?
- From: "Helpful person" <rrllff@xxxxxxxxx>
- Date: 28 Jul 2005 05:16:37 -0700
mpate@xxxxxxxxxxx wrote:
> trs80 wrote:
> > Can one purchase a spray to apply to eyeglasses to provide anti reflection?
> >
> > I have Rx inserts behing sunglasses and Im pretty sure there is an issue
> > with light bouncing around off the Rx lenses. So I though I could spray
> > something on them to help the reflection issue. It would be ok to have to
> > reapply and cleaning .
> >
> > any thoughts? thanks!
>
> There are some new processes using roll to roll technology that have
> created some new products. Check out:
> http://www.wft.bz/micro2.htm
>
> I think there are a few others with similar type roll to roll
> technology, maybe they will send you a sample from a big roll. Let us
> know how it works out.
Similar technology goes back about 100 years and was the first attempt
at anti reflection coatings on lenses. Back then a chemical etch was
used which made the surface porous resulting in a slowly varying
refractve index with depth. This results in lowered surface
reflection.
What is described in your link creats a similar structure. However, I
believe this method results in a fairly soft surface.
.
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