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I wish to change my hard coat, do you have the contact of the "organo polysiloxane thermocure type" hard coat supplier?

I would like to improve myself in the surfacing and also the lens knowledge.
I am hunger to know more the calculation of the RX. Why Surface power = (index-1) / Radious; why Sag = (dia)2 x surface...

Do your cleaning solution is crystal form? I thinks that your answer is correct. Do others got another opinion?

Is this very hard to answer? Crystal form convert to Liquid form is very hard? Need help~@~

I am using the crystal form of Ceroweg Extra (Ultarconic cleaning solution). The density of the ceroweg extra is 1.307g/ml. My ultasonic tank is 5L tank. Anyone know how many grams of ceroweg extra i...

We have a RX Lab, Edging Lab, and also MC Lab.

We have a RX lab, Edging Lab and also MC Lab.

Did anyone know where can i get a sample at the market?
I have no idea how is the coating look like.

As we know that in the market now we have several multicoat color, Green, Blue, Gold, Purple, Yellowish..... but did any one know that can we make the coating to be "NO COLOR" multicoat?

I am not sure, I am now deal with the distributor in thailand.
Anything pls refer to the url as below.

http://opticalchemicals.com

Thanks for your solution, What i found now the bubble is because of dust.
My lab is 10k clean room, after ultrasonic i will send the lens to the oven to cure, after oven i will send the lens to the...

May i know what is the correct process for the full AR Coating process?
This is the process that what i am running now;

1) Precleaning by Aceton
* is it need to clean 2 time in the precleaning...

I am interested to the ar stripper, can you send me some sample?
How can i purchase from you?

What u means is maybe the curing time after the ultrasonic is not enought?
I put the lens in the oven 90'C for 30minute. Normally how is the process?
Thank you.

My lab is a clean room grade 10K,

Mine ultrasonic cleaning is a 7tank design, which
tank1 is 5% NAOH with ultrasonic and temperature 55'C,
tank2 is DI water,
tank3 is 3% NAOH with...

Mine one is thermocure, and is a dipcoat hard coating.

I am new in this field, recently i facing some hard coat problem, We are coating 1.5, and 1.56 lens. Can any one suggest me?
1) what is the best thickness for hard coat?
2) Is it better that i...

147down % 103 up.

TBC = true refractive/surface power = true base curve.

Can u please check for me how to do this job?

I am now using 1.503 index laptools.
If i want to do a job is 1.499 index semi finished SV...

Hi,

I am now using 1.503 index laptools.
If i want to do a job is 1.499 index semi finished SV lens, minus Power = 3.00
Base Curve = 2.00.

Calc :

Laptools = Base Curve + power
...

My lab now using 1.503 lap tools. I have do a calculation formula for the 1.56 semi finished blank. But i am not sure my calculation is correct or not, Can anybody check it for me?
Thanks a lot!...

This excel program can help you Calculation the radius, sag, index and True Base Cure of the lens.