Where can I get Tribrid lenses?

[Chris Ryser]

Not old hat since it was not available thru X-Cel; they never put the product in and probably never will.
I spoke with PPG yesterday and they have no set distribution model and hopefully I can help them get it going. I am working on a lens project and want to include tribirid.

Keep You Posted!

Then maybe Thai Optical did come out with it and introduced it at Mido in 2013:

Excelite TVX is made from the revolutionary much talked about Trivex(R) material from PPG Industries. The Trivex(R) material is not merely a newly improved version of an existing lens material but an innovation that sets a category of its own. PPG has pegged the Trivex material to date as a tri-performance material excelling in 3 areas, but its capabilities extend beyond that. "TPL has worked together with PPG to come up with the perfect addition to the Excelite(TM) finished stock range. Excelite TVX has such notable benefits as excellent optics, astounding impact resistance, incredibly light and thin, remarkable 3-piece drill mount benefits, and striking chemical resistance all in one single, outwardly unassuming lens, whatever lifestyle one opts for," points out TOG's Executive Director, Dr. Sawang Pracharktam.

Lens Data/Properties:-- Abbe Value: 45

-- Specific gravity: 1.1g/cc

-- Centre thickness: to 1.3mm

-- Chemical resistance: Excellent

-- Impact-resistance: Passes CEN, FDA and ANSI Z87.1 standard for occupational safety

-- Lens types to be available: single vision (finished spheric and semi-finished spheric and aspheric) and progressives (standard and short corridor) - on OEM basis and as Excelite TVX


source: =========>
http://www.thefreelibrary.com/Exceli......-a097021388

[Robert_S]

Chris, your post is about trivex, not tribrid

[edKENdance]

Chris, your post is about trivex, not tribrid

Yes Chris, please Tri again.

[Robert Martellaro]

The index is approximately the same as Poly? What's the big improvement? It's lighter?

Abbe value is 41 vs 30, Tribrid and Polycarbonate, respectively.

Specific gravity is 1.23 and 1.30, Tribrid and 1.60 respectively.

No info on dimensional stability and chip/crack/heat/chemical resistance.

[Chris Ryser]

Abbe value is 41 vs 30, Tribrid and Polycarbonate, respectively.

Specific gravity is 1.23 and 1.30, Tribrid and 1.60 respectively.

No info on dimensional stability and chip/crack/heat/chemical resistance.

I stand corrected............I found it. However X-Cel appeared again in this article from back 2013, and so did Thai Optical



PPG launches Tribrid high-index lens material


March 18, 2013
"Tribrid expands upon the foundation of Trivex material that North American opticians have come to trust — clarity, light weight, strength and UV protection — and makes similar attributes available in a high-index lens to meet the everyday visual needs of patients with higher-prescription requirements,” Christine Camsuzou, PPG general manager, optical materials, said during the conference.


The lenses features clarity of Abbe number 41, has a density of 1.23 g per cubic centimeter and refractive index of 1.60, and protects against 100% of UV radiation. Tribrid is compatible with digital, free-form processing and antireflective coatings, according to a press release.
Tribrid product is expected to hit the market in late spring in single vision, clear and transitions, Camsuzou said.
Also, while the price point of Tribrid has not been firmly established yet, it will be an upgrade from the Trivex material, she said.
Thai Optical Group and X-Cel Optical Company have partnered with PPG Industries to help launch the lens material.
See more from Vision Expo East


See at: ======>
http://www.healio.com/optometry/cont...-lens-material

[Craig]

Thai Optical is still producing the blanks.

[Craig]

I spoke to PPG and a lab that is processing.
clear and transitions to start

[Robert_S]

This must be the first time a lens technology has made it to the UK before well before the USA!

[Lelarep]

Since its a laminated lens, isn't there a risk of delamination? Its a really common problem with LCD screens

[Craig]

Since its a laminated lens, isn't there a risk of delamination? Its a really common problem with LCD screens

Not laminated? Even the polarized should be imbibed and not laminated.

[Lelarep]

Oh, I thought I read that it was a laminated lens, my bad.

[Chris Ryser]

I found this website from Shamir in Australia:

http://shamirlens.com.au/index.php?o...rid&Itemid=253

[Robert_S]

Yes, and Seiko amongst others sells them in the UK...

[Hayde]

I've just learned today this has found its way into some American pockets of production. Anyone wearing/selling any yet?

[Quince]

I've just learned today this has found its way into some American pockets of production. Anyone wearing/selling any yet?

I tried to get a trial of these a couple months ago, but they weren't available in the lens style I needed. Very much hoping they are the material to rule all materials but honestly just have been focusing on different things lately- sunglass things...

[Quince]

Cherry has them if anyone is looking.

[Tallboy]

Cherry has them if anyone is looking.

So have you been using Tribrid? Does anyone use this stuff? How is processing, finishing, coating etc?

[Quince]

I think I've sold one set. Honestly, it is mostly because it has been forgotten by everyone but myself in my office and I have the least amount of floor time (thank goodness!) Aside from that, I'm unclear on availability and that holds me back from recommending it as people ask me for input on RXs walking through the door.

What I should do, if I decide to be smart, is look at all 1.60 (or even 1.67) jobs as potential Tribrid trials and pick a few patients that won't mind being a guinea pig.

So, I guess skip my lack of review, for now... Anyone else?

[pknsbeans]

Walman has them at the same price as trivex, so I use that instead of 1.60 or trivex unless the order is for transitions, which isn't available in tribrid.

[Robert_S]

I dispensed a few pairs of it a couple years back and none of those patients returned so make of that what you will ��

[Quince]

Walman has them at the same price as trivex, so I use that instead of 1.60 or trivex unless the order is for transitions, which isn't available in tribrid.

Cherry has SV, FT28, and some PALs available in trans. Not that I've utilized them. I wonder who is making the blanks?

[Tallboy]

I can get them from some very reputable labs in the lens designs I fit for even some of the most difficult RXes... but I am super picky about coating issues, etc. An enquiring mind needs to know.

[Quince]

I can get them from some very reputable labs in the lens designs I fit for even some of the most difficult RXes... but I am super picky about coating issues, etc. An enquiring mind needs to know.

Are you sating you've had coating issues with Tribrid, or the labs who offer it?

[Tallboy]

Are you sating you've had coating issues with Tribrid, or the labs who offer it?

No I haven't ever fit or finished it. I'm just worried that it might have them

[Quince]

Ahhh. I get it now.

I would hope the adherence would be comparable to trivex if this material is everything advertised. That would mean superior scratch resistance and less crazing, which would certainly be a plus over regular high index.