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Thread: Embedded blue light blocker

  1. #1
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    Embedded blue light blocker

    http://essilorusa.com/content/essilo...ectSystem.html

    What sorcery is this? Blue blocking technology embedded in the very fabric of the material?

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    Blue Jumper need for protection against increasing exposure to blue light and UV,


    To address the growing need for protection against increasing exposure to blue light and UV, Essilor, the leading manufacturer of eyeglass lenses, is introducing Eye Protect System™, a lens innovation making eye protection more accessible to everyone. This includes the launch of Smart Blue Filter™ which provides embedded protection against harmful blue-violet light while allowing the beneficial blue-violet light to pass through on an aesthetically clear lens.


    Interesting ..........................

    Only 2 weeks to find out what it is and if we had it already 20 years ago with a simple tinting job, doing the same thing.
    Chris Ryser
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    Master OptiBoarder AngeHamm's Avatar
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    Old news being passed off as an innovation by Essilor. Mitsui has a product like this. TheraBlue is like this.
    I'm Andrew Hamm and I approve this message.

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    Since when is some blue-violet good and some bad? I thought that entire part of the spectrum was bad since its all high-energy? Where is the cut-off?

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    Blue Jumper Here it is ...........................

    Quote Originally Posted by Lelarep View Post

    Since when is some blue-violet good and some bad? I thought that entire part of the spectrum was bad since its all high-energy? Where is the cut-off?


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    Yeah, that tells me absolutely nothing, there is no demarcation between Blue-Violet that is bad, and Blue-Violet that is ok. If you're trying to say UV, UV is not violet, which is why it has a completely different name from violet. Comparing UV and violet is like comparing sonic and ultrasonic, completely different things.

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    OptiBoard Professional RT's Avatar
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    It depends upon how you are defining "bad". Light below 420 nm may cause some eye strain, but is relatively low in terms of the blue light hazard function. Light around 435 nm is potentially the most damaging. And light around 460 nm is deemed "good" because of its relationship to the circadian rhythm. Of course, if your goal is to reduce 460 nm exposure at night for the kiddies reading their iPad in bed, then 460 nm might not be as good as it is in the middle of the day.
    RT

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    It's in the monomer. They have developed the stuff Connant has had for months. http://www.visionmonday.com/technolo...s-launches-uv/

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    Idea They can do this because they own 100% Transitions now! It is Transitions not active

    The new Varilux is actually the Transitions without getting darker; they discovered in the un-active state it blocks blue light. You now have a new product but where does it benefit to then use Provencia? They like to confuse us and it works.

    Craig

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    Redhot Jumper So Essilor has re-invented another "deja vue"........................

    Quote Originally Posted by Speed View Post

    It's in the monomer. They have developed the stuff Connant has had for months.

    TECHNOLOGY: Contact Lenses

    UV++ lenses are made from an in-monomer material that blocks harmful blue and ultraviolet light. Since the material itself blocks blue light, the lens retains the property as long as it is in use. The lenses let the healthier blue-turquoise light in, which helps in proper color perception, good attention levels and wakefulness.


    That is on contact lenses containing a (yellowish) UV400 absorber.

    For eyeglass lenses that was the novelty in the early 1980's when lens manufacturers all came out with the UV 400 absorbing lenses at much higher prices.

    Lens dye suppliers then came out with UV 400 solutions with which the optician could apply in his/her on site lab in the dye pot for a fraction of the cost of these lenses. Through the yellowish tinge it absorbs just about to the 420 nm level.
    These UV solutions are still available today, and might just come back into fashion for a new reason, and save money to the retailer. The best and easiest lens material for this application is CR39.

    Then some dye suppliers came out with the non yellowish UV absorber for the dye pot which is non yellowish but only absorbs up to 382 nm. Polycarbonate lenses also contain a UV absorber, but that stops at 382 nm.

    So Essilor has reinvented another "deja vue".
    Chris Ryser
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    Quote Originally Posted by Craig View Post
    The new Varilux is actually the Transitions without getting darker; they discovered in the un-active state it blocks blue light. You now have a new product but where does it benefit to then use Provencia? They like to confuse us and it works.

    Craig
    From what they told us in January, using this with Crizal Prevencia, it blocks more blue light. If I recall correctly, when used individually, they both block around 20%. When used together, the protection increases to 35%. If you want the best protection, using Transitions XtrActive with Prevencia will get you to 45%.

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    The essilor announcement is some evidence that they have come to their senses and see the need to put the blue blocking in the lens instead of on the lens. They are still recommending their Prevencia be combined with blue absorption, but it is only months, not years from now that they will completely see the light and drop Prevencia all together. I'm quite sure they now know that back side blue sources are reflected and concentrated FROM THE FRONT SURFACE COATING into the eye. Just a matter of time. How embarrassing it will be for them when they make THAT announcement. Of course the same thing can be said about all the major blue reflectors.

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    Blue Jumper Their way was and still is to make something you can not duplicate in your on site

    Quote Originally Posted by Dr. Bill Stacy View Post

    The essilor announcement is some evidence that they have come to their senses and see the need to put the blue blocking in the lens instead of on the lens.
    Their way was and still is to make something you can not duplicate in your on site lab, with simple means like a dye pot and the right chemicals.

    They have to feed their many labs with expensive ways of doing it.
    Chris Ryser
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    Quote Originally Posted by Chris Ryser View Post
    That is on contact lenses containing a (yellowish) UV400 absorber.

    For eyeglass lenses that was the novelty in the early 1980's when lens manufacturers all came out with the UV 400 absorbing lenses at much higher prices.
    ".
    No Ophthalmic lenses. http://www.uvplusplus.com/availability.html





    Hi-Vex® +6.00 to -10.00 Super Hydrophobic AR
    1.60 MR-95 +6.00 to -10.00 Super Hydrophobic AR
    1.67 MR-10 +6.00 to -12.00* Super Hydrophobic AR *Extended Cylinders Available






    Semi Finished Base Curve Diameter


    Hi-Vex® .50/1/2/3/4/5/6/7/8/9/10 75mm

    1.60 MR-95 1/2/3/4/5/6/7/8/9/10 75mm

    1.67 MR-10 1/2/3/4/5/6/7/8/9/10 75mm

    With all the big E gibberish it seems that they (BIG E) is still confused about the blue "problem".

  15. #15
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    Blue Jumper

    Quote Originally Posted by Speed View Post

    It's in the monomer. They have developed the stuff Connant has had for months. http://www.visionmonday.com/technolo...s-launches-uv/
    Speed...............When you click on the link you posted, check the title which I copied right below.

    TECHNOLOGY: Contact Lenses
    Connant Lens Launches UV++


    It is also an old way of doing as in 1982, as I described it in my above post number 10.

    UV absorber in the monomer first and then opticians got UV400 absorbers for the dye pot and did what i did describe also above.
    Last edited by Chris Ryser; 03-16-2016 at 10:54 AM.
    Chris Ryser
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    One eye sees, the other feels. OptiBoard Gold Supporter
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    Quote Originally Posted by AngeHamm View Post
    Old news being passed off as an innovation by Essilor. Mitsui has a product like this. TheraBlue is like this.
    Yup.

    Quote Originally Posted by Speed View Post
    It's in the monomer. They have developed the stuff Connant has had for months. http://www.visionmonday.com/technolo...s-launches-uv/
    Yes sir.

    Quote Originally Posted by Speed View Post
    Right.

    The invention is from Mitsui Chemicals, I think. Maybe licensed to the above manufacturers. Dyes and coatings for UV/blue/violet will now mostly become obsolete.

    http://www.mitsui-chem.co.jp/special...iew_v05_en.pdf
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    Science is a way of trying not to fool yourself. - Richard P. Feynman

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    Quote Originally Posted by Chris Ryser View Post
    Speed...............When you click on the link you posted, check the title which I copied right below.

    TECHNOLOGY: Contact Lenses
    Connant Lens Launches UV++


    It is also an old way of doing as in 1982, as I described it in my above post number 10.

    UV absorber in the monomer first and then opticians got UV400 absorbers for the dye pot and did what i did describe also above.
    Sorry Chris, but I can't be responsible for VM typos. Please read the article.

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    Completely clear blue blocker from Vision-Ease came out called "Clear Blue Filter" are all these the same thing?
    ~ Erin
    ABOC

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    Blue Jumper how would you neutralize a visible blue color with ............................

    Maybe it would be interesting for anybody to learn about visible colors and more. A most interesting section on it can be found:

    What Wavelength Goes With a Color?


    see at: =============>
    http://science-edu.larc.nasa.gov/EDD...or_Colors.html



    Check it out and then tell us how would you neutralize a visible blue color with a clear, non visible tinted lens.
    Chris Ryser
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  20. #20
    One eye sees, the other feels. OptiBoard Gold Supporter
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    Better Things for Better Living...through Chemistry.

    http://www.google.com/patents/CN103465418A?cl=en


    "Under the condition that the long-wave light transmissivity of the lens is rarely changed, the blue light prevention performance of the lens is improved."

    "The object of the present invention is to solve problems of the prior art, to provide a minimal change in the case of long wavelength light transmittance, improvement of anti-blue resin lens performance…"
    Roberts Optical Ltd.
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    Redhot Jumper Blue light cut nano compound resin material, lens and preparation method thereof

    Quote Originally Posted by Robert Martellaro View Post

    "Under the condition that the long-wave light transmissivity of the lens is rarely changed, the blue light prevention performance of the lens is improved."

    Congratulations Robert..............superb information and even translated from Chinese to English.

    I have followed your lead because of my own interest in this matter and have found the registered patent:

    Citing Patent Filing date Publication date Applicant Title
    CN103992422A * Jun 4, 2014 Aug 20, 2014 江苏华天通纳米科技有限公司 Anti-blue light nanometer composite monomer material and anti-blue light optical resin prepared from same
    * Cited by examiner

    ABSTRACT

    The invention relates to a blue light cut nano compound resin material and lens and a manufacturing method thereof. The blue light cut nano compound resin material comprises macromolecule resin as well as core-shell type transition metal oxide nano particles and an ultraviolet light absorber which are dispersed in the macromolecule resin, wherein the core-shell type transition metal oxide nano particles account for 0.2-2% of the total weight of the resin, and the ultraviolet light absorber accounts for 0.5-5% of the total weight of the resin; particle size of nano particles is 20-50nm; the shell is a surface active agent, and thickness is 3-10nm; the nano particles and the ultraviolet light absorber are fully dispersed in a macromolecule monomer, and a prepolymerization and secondary polymerization technological process is carried out, so that the blue light cut compound resin material is obtained. The manufacturing method of the blue light cut compound resin material is simple in technology and good in reproducibility, the manufactured resin material and lens can efficiently and permanently shield high energy harmful blue light and ultraviolet light with wavelength within the range of 380-450nm, vision is clear and colour vision is soft under strong and weak light environments respectively, and the blue light cut compound resin material has excellent overall performance.


    see all of it: ==========>
    http://www.google.com/patents/CN103980643A?cl=en
    Chris Ryser
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    http://optochemicals.com............................. http://arcoatings.com

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