Would love to have access to more Transitions colors. I agree with the above in that these 'trendier' colors would be more appealing to young folk.
I also feel kinda bad for the clientele of an office that refuses to offer xtractive trans. Its a great product that many patients, especially those that are older, love and routinely repurchase. If the information is correctly relayed to the patient, they just might find having a bit of hue or tint indoors is very comfortable and having the tint change behind the windshield is of course the most desirable factor. In 5ish years of selling xtractive i can count 2(!) patients who returned for dislike of the indoor hue. To each their own right?
Younger just released a grey polarised photochromic lens in the UK. Has anyone come across these before?
Also the flash to mirror lenses are cool, we've been selling them since Silmo last year.
Let's be frank .........................
All AR coatings are made with the same basic product, called SIO2, which is basically glass.
These coatings were originally applied on glass camera lenses to improve the picture quality in the 1930s.
There was never a problem with adhesion to the lens, as the base materials were in the same family, called glass.
When plastic lenses became popular in the early 1980s the problems started and AR coatings partially delaminated. That is when I came up with the first non dangerous AR stripper and made some good money over the years with it.
The combination of glass added to the flexible plastic is simply a strange bedfellow and never worked properly. It needs a in between layer of material that permanently adheres to both, glass and plastic.
One major optical company secured the supply of this material for themselves and started to dominate the market of AR coatings.
In any country where opticians are still using glass lenses there is totally no problem with AR coatings until you scratch them.
Last edited by Chris Ryser; 09-12-2017 at 04:07 AM.
There's just no way 23% in the U.S. is accurate. I've heard low numbers from multiple lens reps, but all in the 40s and 50s.
I'm Andrew Hamm and I approve this message.
I know AR penetration is still relatively low compared to the other markets, here in the US. But my practice has moved from 50% to 80% since I joined back in November 16.
*patting self on back*
Thanks for the info on the other Trans though. This intrigues me. Looks to be built on the Essilor colors concept, only in photochromic.
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Eliza Joy Martius VIII MMVIII
Three things in the States that are needed to increase AR.
First is to stop treating it as an add-on item. For VA, it is a necessity.
Second is for insurance companies to provide better coverage for AR.
Lastly, Backside AR is absolutely necessary on sunglasses for optimal performance! Ask any real optician.
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Prognatus ex Alchemy ad Diligo
Eliza Joy Martius VIII MMVIII
www.opticaljedi.com
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Prognatus ex Alchemy ad Diligo
Eliza Joy Martius VIII MMVIII
Both reduce glare, but different types of glare.
http://www.optiboard.com/forums/show...ll=1#post93023How do specular reflections and ghost images reduce visual performance? These ghost images can serve as sources of glare within the visual field. Moreover, when the reflected glare source is large or defocused, it can produce a veiling glare over a large portion of the visual field. Since this reflected glare is added to the brightness of both the object of interest and its background, the difference in brightness between them remains constant. However, since the background brightness, which is the denominator of the contrast expression above, still increases, the contrast of the retinal image decreases.
https://www.thevisioncouncil.org/sit...erformance.pdf
Best regards,
Robert Martellaro
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
AR reduces glare caused by the spectacle lenses themselves, not glare in the environment. That is how I describe it to people.
I'm Andrew Hamm and I approve this message.
That sounds good. I like to emphasize the transparency of coated optics.
I was about age 10 when I saw this 60's commercial from Corning/Polaroid that showed the dangers (and disappointment) of glare in suburban America. At that time, my brother was grinding his own reflecting telescope mirrors, so we were getting pretty good at understanding the physics of light. You can be sure we were all wearing Polaroid flip-up sunglasses over our minus powered eyeglasses.
Implied infanticide and sex in one advert. Don Draper would've have been proud!
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
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