new lens materials

**d_a_h_u_k** · 10-20-2010, 09:10 AM

I've been receiving information on some new mid/high index materials out of asia that have the impact resistance properties of poly but with reasonable to high abbe values. Does anyone have any experience with these materials? We're thinking of importing some to give it a shot.

**vintagetie** · 10-20-2010, 09:14 AM

what materials do you speak of, any links?

**d_a_h_u_k** · 10-20-2010, 09:32 AM

The materials don't seem to have any branded names, and I think the monomers are coming out of Korea. I've seen both 1.57 and 1.6 indices, with abbe values of 45 and 48. I don't know much about them to be honest. I know of labs in both Korea and Singapore that are using them but haven't heard much else.

**DragonLensmanWV** · 10-20-2010, 12:13 PM

Maybe that's the new higher index Trivex.

**braheem24** · 10-20-2010, 06:24 PM

Hivex is already available in the U.S.

**d_a_h_u_k** · 10-21-2010, 04:15 AM

It's definitely not the new Trivex, although it could be chemically similar.

**DragonLensmanWV** · 10-21-2010, 06:16 AM

Originally Posted by braheem24

Hivex is already available in the U.S.

Who's got it?

**braheem24** · 10-21-2010, 06:55 AM

State optical in tampa 1-800-622-5367

**DragonLensmanWV** · 10-21-2010, 07:28 AM

Wonder if they have semi-finished blanks?
And when is Younger going to sell it?

**Craig** · 10-21-2010, 08:00 AM

Originally Posted by braheem24

State optical in tampa 1-800-622-5367

I just called and they do not know of any such product?

Craig

**jefe** · 10-21-2010, 08:37 AM

When I was at VEE, the person at the Three Rivers Optical booth was telling me they would soon be carrying a higher index version of Trivex.

**d_a_h_u_k** · 10-21-2010, 09:00 AM

Originally Posted by jefe

When I was at VEE, the person at the Three Rivers Optical booth was telling me they would soon be carrying a higher index version of Trivex.

I can't find any information about this material on the PPG website. I wonder if these new unbranded materials are just being labeled generically as a "higher index version of trivex."

**sharpstick777** · 10-21-2010, 06:44 PM

Tokai has a 1.76 resin that I would love to see...

http://www.tokaiopt.com/lens/505570.php

**braheem24** · 10-21-2010, 07:44 PM

Originally Posted by Craig

I just called and they do not know of any such product?

Craig

They have it made thru a lab in china, I had thier pricing sheet ~4 months ago with it onl the list. Talk to Howard, He would know.

**d_a_h_u_k** · 10-22-2010, 05:33 AM

Hanmi Swiss in Korea manufacture one which they call HIL.

http://hslens.co.kr/V_5/e_index.html

They advertise a 1.1mm centre thickness while still passing the drop ball test, ABBE 48, RI 1.57, and specific gravity of 1.14

**braheem24** · 10-22-2010, 03:14 PM

I just confirmed with State Optical in Tampa, they have Hivex,

It is less "slightly less expensive then trivex" 4 points higher Abbe value with a 1.56 index of refraction and same impact resistance as trivex.

The can get the lenses in Finished as well as semi-finished and are placing a china order for other stock if there is a big demand they will stock up. I spoke to Howard.

...and no I'm not the President, Just a client.

**sharpstick777** · 10-22-2010, 03:35 PM

Originally Posted by d_a_h_u_k

Hanmi Swiss in Korea manufacture one which they call HIL.
http://hslens.co.kr/V_5/e_index.html
They advertise a 1.1mm centre thickness while still passing the drop ball test, ABBE 48, RI 1.57, and specific gravity of 1.14

I followed that link... it went to the main page for Hanmi Swiss Optical in Korea. I searched through their lens offerings but there was no mention of a 1.57 with an ABBE of 48, only a 1.56 with an ABBE of 38. Do you have another link?

**sharpstick777** · 10-22-2010, 03:38 PM

Originally Posted by braheem24

I just confirmed with State Optical in Tampa, they have Hivex,
It is less "slightly less expensive then trivex" 4 points higher Abbe value with a 1.56 index of refraction and same impact resistance as trivex.
The can get the lenses in Finished as well as semi-finished and are placing a china order for other stock if there is a big demand they will stock up. I spoke to Howard. ...and no I'm not the President, Just a client.

I could not find a listing for any State Optical in Tampa... google only had a company called "Premium Dynamic Lenses".. Are they one and the same? Premium Dynamic has stock lenses, but no mention of any HIVEX on their website.

A Google search for HIVEX only lead me back to... THIS THREAD! Funny.

**braheem24** · 10-22-2010, 03:44 PM

Same company, 1-800-622-5367 Talk to howard only, He will stock them if there is enough demand.

**sharpstick777** · 10-22-2010, 03:46 PM

Originally Posted by Craig

I just called and they do not know of any such product?
Craig

Same here... would you trust a company where they don't even know their own products?

**sharpstick777** · 10-23-2010, 09:02 PM

Here is a link to the Hitop 1.57 / 48 Abbe out of Singapore

http://www.hitoplens.com/index.aspx?...list&CateID=15

**AWTECH** · 10-23-2010, 10:29 PM

This tread goes all over the map. Some what to know the maker of the monomer, others if it is PPG, plus many other issues. I didn't see many questions about how does it perform for the patient. Fairly important I think.

In addition to the monomer there must be knowledge of how to hard coat and AR the material, the amount of flex in material etc.

Trivex is a Trademark of PPG. I too understand they are finally going to supply their parter lens companies with a higher index material. (I don't know if they will call it Trivex or not).

**d_a_h_u_k** · 10-25-2010, 04:07 AM

Originally Posted by sharpstick777

I followed that link... it went to the main page for Hanmi Swiss Optical in Korea. I searched through their lens offerings but there was no mention of a 1.57 with an ABBE of 48, only a 1.56 with an ABBE of 38. Do you have another link?

I couldn't find a link, but I've attached a page out of their brochure.