Results 1 to 8 of 8

Thread: Orange peel

  1. #1
    Bad address email on file
    Join Date
    Feb 2007
    Location
    Malaysia
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    5

    Orange peel

    Hello Everybody , Need Help here! May I know what is the cause of "orange peel" on lens surface after AR coat and dipcoat process? It only appears 1 to 2 days after the processes .

  2. #2
    Bad address email on file
    Join Date
    Jun 2005
    Location
    Sydney, Australia
    Occupation
    Optical Laboratory Technician
    Posts
    78
    Been there, experienced that. If you are using a Ionsource Mark I (haven't seen it on a Mark II), look at your voltage power. It could be too high. One of the layers may be affected by it.

    Hope this helps.

  3. #3
    Bad address email on file
    Join Date
    Feb 2007
    Location
    Malaysia
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    5
    Hello Websta, thanks for your kind reply.

    Just to confirm- do you mean the ionsource etching is too much for it.. and that may be the cause of "orange peel"?

  4. #4
    Bad address email on file
    Join Date
    Jun 2005
    Location
    Sydney, Australia
    Occupation
    Optical Laboratory Technician
    Posts
    78
    If by etching you mean the clean cycle in the chamber, then no. It relates more to one of the layers you have in your stack that you put on with the ionsource. It could be titanium, aluminium, zirconium or any other chemical used in the make up of your AR coat.

    We found that the ionsource "tightened" up the specific layer too much due to the anode voltage. But to change this you will need to adjust the anode current and neutralisation current too (in some cases)

    The best person to speak with would be the machine manufacturers and their technicians.

    Good luck, hope it works out for you.

  5. #5
    Bad address email on file
    Join Date
    Feb 2007
    Location
    Malaysia
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    5

    Orange peel / green

    Thanks for your reply again. We will look into this matter with your previous information.

    here is another problem that we are facing now - CHANGE OF UV COLOUR AFTER DIPCOAT
    When we added UV400 treatment (tinting) - our lens will change into greenish yellow colour after DIP COAT. May I know which may be the biggest cause here?




    Quote Originally Posted by Websta View Post
    If by etching you mean the clean cycle in the chamber, then no. It relates more to one of the layers you have in your stack that you put on with the ionsource. It could be titanium, aluminium, zirconium or any other chemical used in the make up of your AR coat.

    We found that the ionsource "tightened" up the specific layer too much due to the anode voltage. But to change this you will need to adjust the anode current and neutralisation current too (in some cases)

    The best person to speak with would be the machine manufacturers and their technicians.

    Good luck, hope it works out for you.

  6. #6
    Bad address email on file
    Join Date
    Jun 2005
    Location
    Sydney, Australia
    Occupation
    Optical Laboratory Technician
    Posts
    78
    Difficult to say what the problem is. Have you checked the lenses prior to sending through dip coating? Does the lens travel with any other tinted lenses? The other tinted lenses may "leach" their colour and cause your untinted lenses to go slightly green. This will happen more often if your baths are not recirculating.

    Or perhaps the combination of chemicals in your tank affects the UV. I know we had some problems a while back in that the UV was "oily" and not compatible with our Potassium Hydroxide. I seem to think that they may have come out with a slight green tinge to them. This may be another cause to look into.

    I would check the lenses prior to dipping, and send them alone through the process. You will then be able to see what the true result will be.

    Good luck, let me know how it goes.

  7. #7
    OptiBoard Professional Mauro.Airoldi's Avatar
    Join Date
    May 2007
    Location
    Bologna Italy
    Occupation
    Lens Manufacturer
    Posts
    161
    Concerning orang peel I suggest you to veriufy th ehard coat layer last first thing.
    When you have O.P. is the HC layer to be deformed (some time caused from a AR too tensioned).
    I suggest you:
    1 verify th of hard coat, verify by therma shok test the hard coat quallity (if you have yet a lot of orange peel afther TST you have a troubles)

  8. #8
    OptiBoard Professional Mauro.Airoldi's Avatar
    Join Date
    May 2007
    Location
    Bologna Italy
    Occupation
    Lens Manufacturer
    Posts
    161
    sorry it's start too erly... 2 veryfy the hard layer + AR with TST , If you need TST specification you can find on : http://www.colts-laboratories.com/ In general you can conside Orange peel like a effect of tensil stress versus compressive stress of differet layer, so it's importand verify what is the layer caused the trouble,

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. OPTICIAN FOR HIRE - Orange County,CA
    By tymmerz in forum The Job Board
    Replies: 0
    Last Post: 03-03-2008, 07:18 PM
  2. Need Help W> Corning Orange For Mac Pt
    By bt5050 in forum General Optics and Eyecare Discussion Forum
    Replies: 22
    Last Post: 11-02-2007, 02:47 AM
  3. Looking for an optician job in Orange County CA
    By Fb999999999 in forum The Job Board
    Replies: 1
    Last Post: 12-02-2006, 11:55 PM
  4. Need optician in Orange County, CA
    By AEOC in forum The Job Board
    Replies: 0
    Last Post: 05-05-2006, 02:39 PM
  5. Derma Peel System For Sale
    By Bev Heishman in forum Optical Marketplace
    Replies: 3
    Last Post: 01-11-2002, 08:34 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •