Anyone from Transitions in this forum? 'Would be great to hear a more technical elaboration on the matter. Thanks.
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Anyone from Transitions in this forum? 'Would be great to hear a more technical elaboration on the matter. Thanks.
Thanks Tallboy for your comment. Yeah, maybe it's the colour comparison that makes patients prefer Signature than Xtractive. I'm just curious though if Transitions has published anything to show...
Hmmm. I'm not sure it the results of the comparison would vary depending on where both lenses are being activated. If it's in a warmer area maybe Signature, being less temperature sensitive, would...
Hello Optiboarders,
Does anyone have a copy any published charts comparing the performance of Transitions Signature with Xtractive lenses? What we have been telling our customers is that Xtractive...
Hi Essegn,
Thanks a lot for sharing your experience.
Hi Optiboarders,Do you have any information as regards dip hard coating Transitions Signature 1.5 SV Unc lenses. Specifically, I'd like to know what pre-cure and post cure temperature settings should...
Could this mean the possible demise of ind labs like us who depend a lot on non E casters for Transitions products?
We do a dry cut finishing on our poly and trivex lenses. Our experience is that after the edging cycle there would be very fine debris that would be deposited onto the surface of the lens that we had...
Thanks for the advise Chris.
Hi Chris,
Thanks for your response.
our lab has 70 employees. FYI we provide Conventional and FF production, Hard and AR coating, and Finishing.
Brandon
Hello,
We are currently undergoing a job evaluation exercise in our lab as initiated by our HR department. At the end of this exercise, part of the deliverables is to be able to create an amended...
http://www.ppg.com/en/newsroom/news/Pages/20130114A.aspx
Just came accross this link recently. Just wondering if they have already arrived at an agreement....in case Essilor gets to own majority...
Thanks Uncut. I agree. In the past, just after edging we would already see some micro cracks which we were able to considerably prevent from occurring by softening our AR.
Thanks Mauro. We actually tried to make some changes in one of our TIO2 layers to make the AR a bit flexible(softer). However, what is difficult for us is to strike the balance between flexibility...
To members with high experience on dip-hardcoating and ar coating, I hope I could be enlightened on my theory on how to prevent HMC crazing. My theory is that lenses that have been dipped in a primer...
Hello,
anyone using Optotech's Flash or Flash Light Free Form generator? i have been meaning to get some feedback on their performance. hope someone could share his experience with the machine.
...
Thanks Rafael for sharing your experience. I'm happy to know that we could use our primer for lenses other than polycarbonate. As I've said, during our tests adhesion seemed to be better for 1.6 and...
In our lab, all frames are inspected using a high powered lens( a lenticular base 16 lens would do) to check for cracks you can't see with the naked eye, apart form other imperfections. SHould fine...
Hi Mauro,
Glad to hear and greatly appreciate your reply. Just to make myself clear, my concern is not about our lenses turning yellowish after hardcoating them. In fact, we do not see any visual...
Has anyone had some experience with the hardcoat varnish from SDC? DOes it really turn yellowish as it ages? Is this a sign of it losing it's properties and thus in a phase of deterioration? Thanks...
Thanks again Chris, greatly appreciate your reply. I hope it's alright to have some follow-up questions based on your response. On Q#4- based on our records the last time we changed our varnish was 6...
Hi Chris,
Thanks for your response. We do thermal curing. I have already written to our varnish and primer supplier, although all I have been given at the moment is a technical data sheet that...
Hi All,
I am new to this forum and I'd like to say that I'm very glad to discover this great avenue for sharing information about our industry. For the last three years I have been working in a...