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A hydrophilic (Anti-Fog) coating gets ineffective after 4-6 month of use because it saturates with humidity and the stops being effective. There was one invented in Japan a few years ago, but only worked 4-5 month and was retired from the local market.
Knowing from my MicroTints system that microwaves can do some chemical wonders altering molecules in cert aim materials I have come up with a humidity cure coating material that is easily applied in an office environment without expensive equipment. The coating does superbly adhere to un-coated or hard coated lenses from CR39 to High Index.
The ultimate test to check the effects is the freezer test, by placing treated lenses into a freezer for 30 seconds and then removing it to room temperature. If treated properly the surface will stay clear and will not fog up on the treated surface.
This coating will also saturate after a certain time of use and stop its AntiFog properties. These properties can be renwed by placing the lenses into a microwave and expose them for 60 seconds of high power. The lenses will get warm and after coooling off are again fully active and will have renewed anti-fog properties.
The final layer is hard slippery, super hydrophobic and hydrophilic at the same time and also acts as an anti scratch treatment.
It will not work on AR coated lenses as the layer is too thick and alters the AR coating properties.
 How to Treat a Lens |
1) Dip a paper tissue point into the polymer and spread it equally over the to be treated surface.
2) Hold for 90 seconds into steam from a boiling water kettle at about 40 centimeters distance to accelerate curing.
3) Place on table for 3-4 minuttes.
4) Buff with a new paper tissue until glossy
5) Go back into steam over boiling kettle for another 90 second, then place still wet lens into microwave.
6) Set microwave (1000W) to 1 minute at high.
7) Remove from microwave oven and let fully cool off. Then buff again if needed.
8) Surface is now fully Anti-Fog treated.
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How to
Renew a already coated Lens |
1) Remove lens from frame. (Placing the whole frame with lenses in microwave will burn up the whole assembly)
2) Place lens in microwave. Set microwave to 1 minute at high and start.
3) Remove lens from microwave and let cool off, mount lens into frame and job is done.
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Read
about Polymer |
The
Polymer is a humidity cure polysiloxane that cures into a non toxic finished product.|
Disposal |
As all other chemical products, un used should be disposed off according to law.
Click To Return to ► OMS Optochemical Main Page
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