Page 3 of 3 FirstFirst 123
Results 51 to 58 of 58

Thread: Is there a purpose to AR on the back side of a lens?

  1. #51
    Master OptiBoarder OptiBoard Silver Supporter lensmanmd's Avatar
    Join Date
    Oct 2016
    Location
    Maryland
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    1,171
    Quote Originally Posted by Canche View Post
    So you dont recoment Backside AR?
    Not for clear lenses. I recommend them for sunglasses.
    I bend light. That is what I do.

  2. #52
    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
    Join Date
    Dec 2004
    Location
    At a position without dimension...
    Occupation
    Dispensing Optician
    Posts
    5,051
    Quote Originally Posted by Canche View Post
    So you don't recommend Backside AR?
    Why not on both sides for a clear pair?

  3. #53
    Eyes eastward... Uilleann's Avatar
    Join Date
    Jan 2007
    Location
    Utah
    Occupation
    Dispensing Optician
    Posts
    3,083
    When labs send a clear lens with AR on one side it is DEFECTIVE (which happens with somewhat alarming repetition at times). There's no reason to make a clear lens that way. But on a polar SUN lens for example, you DO want less light entering from the front side - hence the backside applied to the backside only.

  4. #54
    Master OptiBoarder AngeHamm's Avatar
    Join Date
    Apr 2010
    Location
    Richmond, VA
    Occupation
    Optical Retail
    Posts
    2,263
    Quote Originally Posted by Uilleann View Post
    When labs send a clear lens with AR on one side it is DEFECTIVE (which happens with somewhat alarming repetition at times). There's no reason to make a clear lens that way. But on a polar SUN lens for example, you DO want less light entering from the front side - hence the backside applied to the backside only.
    I worked with an optician once who liked the look of a clear lens with a flash mirror on the front and AR on the back. Not for all his glasses, just one pair. It was... a choice. Looked really cool, though!
    I'm Andrew Hamm and I approve this message.

  5. #55
    Eyes eastward... Uilleann's Avatar
    Join Date
    Jan 2007
    Location
    Utah
    Occupation
    Dispensing Optician
    Posts
    3,083
    Quote Originally Posted by AngeHamm View Post
    I worked with an optician once who liked the look of a clear lens with a flash mirror on the front and AR on the back. Not for all his glasses, just one pair. It was... a choice. Looked really cool, though!
    Definitely a choice. Though completely trash optics/reflections. To each their own aesthetically, but not functional optically of course.

  6. #56
    Master OptiBoarder
    Join Date
    May 2012
    Location
    UK
    Occupation
    Optical Laboratory Technician
    Posts
    924
    It depends on the use case. What he was saying was that ar both sides would be better for this situation.
    There is no case where backside AR shouldn't be applied. Its just a question of what coating to use on the front...

  7. #57
    Master OptiBoarder
    Join Date
    May 2012
    Location
    UK
    Occupation
    Optical Laboratory Technician
    Posts
    924
    Sorry, I was replying to Canche

  8. #58
    Master OptiBoarder
    Join Date
    May 2012
    Location
    UK
    Occupation
    Optical Laboratory Technician
    Posts
    924
    Oh and by the way, I wear flash coating on almost all my clear glasses (although they all have a slight tint too)

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Turning my back on the dark side...
    By MikeAurelius in forum Just Conversation
    Replies: 8
    Last Post: 02-14-2011, 10:31 AM
  2. Replies: 1
    Last Post: 04-18-2006, 04:49 PM
  3. come in to talk about the benifits of the back side add
    By seanl in forum Progressive Lens Discussion Forum
    Replies: 4
    Last Post: 07-03-2005, 11:42 AM
  4. rebuilt gerber back side coaters
    By gpw_ww in forum General Optics and Eyecare Discussion Forum
    Replies: 0
    Last Post: 11-12-2003, 09:54 AM
  5. Ultra Optics Back Side Coater
    By Mike Fretto in forum General Optics and Eyecare Discussion Forum
    Replies: 8
    Last Post: 08-09-2000, 11:11 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
  •