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@Mauro Sir pls advise.

What is optimum temperature for fast curing (essemtech) of cr39 lenses.

Thanks for your reply.sir if I use fast curing (essemtec) then what will be the optimum temperature for cr39 lenses.

Hii,
Need help about the optimum quring temperature of cr39 lenses in dip coat process.

Hii..
Earlier there was no issue in our poly segment,but last few days it's become nightmare.there was sputtering type of spot mark in entire basket,I have checked before 1.5 dipping there was no...

Hii,
What is sign of a Plano power in prescription.
+0.00 or -0.00 or only 0.00/Plano
Which notation was correct & why.pls help.
Thanks in advance..

Cleaned with methanol,& for itching in machine tank naoh solution used

No,we do tint first then HC.previously we also do the same but now some lens become foggy.

Hello, recently I have suffered with poly tint lens during hard coat process,it's become frosted,trying lots of things for resolving the issue but not succeed.any idea will be very helpful.

Hello,
Having 12 years of experience in optical lab.currently working in coating lab in India,also having the experience of working in traditional surfacing lab(7 yrs) in all operations.
Looking...

Noted sir,I,ll take care of those point adviced by you in future..
Many many thanks for your time & suggestions.

Picture send.

Thanks for your valuable tips.
After dipping in 1.6 varnish it's going to pre- drying oven with 80* temparature.

Ans 1- cracking appear before curing in the oven.
Ans 2- in general 2.5 hrs@125 degree
Ans 3- it's spread to the lens surface
Ans 4- no it's not 1.5,we used 1.6 index varnis for 1.6 index lens &...

Hello.
I have suffered by the cracking issue coming during the hard coat process particularly in 1.6 index,any advice will be very helpful .

Sir,I have same problem with 1.6 tinted lenses.pls advice if any.

Hii, @MAURO I have some query regarding the same machine & process,hope u help.
1.tank 1 & 2 with naoh+ water+ultrasonic is it only cleaning or some impact resistant property added to lens.?
2.tank...

Ok..thanks

Good Morning Sir(s) thanks both of u for this valuable feedback.i m trying to find out the mathematics solution for this prism value.can I apply the Prentice rule for this.?

Drk sir,yes u r right,but how it's come 2.37 base down?I just want to know the calculation which conclude this prism value.
Thanks in advance for ur help.

Dear sir(s),I have some problem to understand the below prescription:
Re- +4.5/-2.5*155 & dcntr -2.90 in//4.90 up
Le-+4.75/-3.25*20 & dcntr-3.40 in//4.90 up
BE ADD-2.00
BE 2.37 ∆ @270
It's a ff...

Dear sir(s),I have some problem to understand the below prescription:
Re- +4.5/-2.5*155 & dcntr -2.90 in//4.90 up
Le-+4.75/-3.25*20 & dcntr-3.40 in//4.90 up
BE ADD-2.00
BE 2.37 ∆ @270
I,m not...

Thanks Mr.Don for Ur reply.

+ side polish possible in xtraactive blank,does + side polish affect its photochromic properties?