Results 1 to 22 of 22

Thread: franklin split bifocals

  1. #1
    OptiBoard Apprentice
    Join Date
    Sep 2006
    Location
    england
    Occupation
    Optical Laboratory Technician
    Posts
    15

    franklin split bifocals

    Does anyone do franklin split bifocals? We have done them before but very time consuming.I have a few ideas of making it easier but neve put them into pratice any ideas folks?

  2. #2
    Rochester Optical WFruit's Avatar
    Join Date
    Nov 2007
    Location
    Rochester, NY
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    1,273
    Talk to Jacqui here on the forums. She's our resident expert on these.
    There are rules. Knowing those are easy. There are exceptions to the rules. Knowing those are easy. Knowing when to use them is slightly less easy. There are exceptions to the exceptions. Knowing those is a little more tricky, and know when to use those is even more so. Our industry is FULL of all of the above.

  3. #3
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Hi there :D

    Yes we make Franklins, hemianoptics, prism segs and a few other similar goodies. Send me a PM on this :D

    WFruit: Chip Anderson and Clive Noble are also experts at this, they have both taught me more.
    Last edited by Jacqui; 12-18-2010 at 09:04 AM.

  4. #4
    Rochester Optical WFruit's Avatar
    Join Date
    Nov 2007
    Location
    Rochester, NY
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    1,273
    Thanks Jacqui, that's good to know. You're the one I see posting most about them, so I mentioned you first. ;)
    There are rules. Knowing those are easy. There are exceptions to the rules. Knowing those are easy. Knowing when to use them is slightly less easy. There are exceptions to the exceptions. Knowing those is a little more tricky, and know when to use those is even more so. Our industry is FULL of all of the above.

  5. #5
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Quote Originally Posted by WFruit View Post
    Thanks Jacqui, that's good to know. You're the one I see posting most about them, so I mentioned you first. ;)
    Clive has retired, but still has a look here at times. Chip was banned, but still looks. I sent them both messages on FB about this post.

  6. #6
    Master OptiBoarder Clive Noble's Avatar
    Join Date
    May 2000
    Location
    Israel
    Occupation
    Optical Retail
    Posts
    429

    Franklin Bifos

    Hi Rob,

    Yes, I'm still in the market for Franklins even though I'm semi retired.... and they are still laboriously made by hand from 4 individual s/v lenses... I've even done Trifocals....

    If there's anything specific you need, just PM me... Happy Holidays to all.............

  7. #7
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Good to hear from you, Clive :D

  8. #8
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    You may also want to look at this blog post about me. I am attempting to set up a lab to do nothing but Franklins, hemianoptics, etc.

    http://theopticalvisionsite.com/eye-...akcat/#respond

  9. #9
    OptiBoard Apprentice
    Join Date
    Sep 2006
    Location
    england
    Occupation
    Optical Laboratory Technician
    Posts
    15
    Thanks Clive how do you keep the seg line straight ?

  10. #10
    Master OptiBoarder OptiBoard Gold Supporter DragonLensmanWV's Avatar
    Join Date
    Oct 2006
    Location
    The Greatest Nation
    Occupation
    Optical Retail
    Posts
    7,645
    Gotta hold your mouth just right.:bbg:
    DragonlensmanWV N.A.O.L.
    "There is nothing patriotic about hating your government or pretending you can hate your government but love your country."

  11. #11
    OptiBoard Apprentice fagin's Avatar
    Join Date
    Sep 2008
    Location
    Seaford (U.K)
    Occupation
    Dispensing Optician
    Posts
    47
    sorry to sideline the post. "Chip Anderson is an expert at this" . So why is an expert on something like this banned ?

  12. #12
    Cape Codger OptiBoard Gold Supporter hcjilson's Avatar
    Join Date
    May 2000
    Location
    Cape Cod, Hyannis, MA. USA
    Occupation
    Dispensing Optician
    Posts
    7,437
    Quote Originally Posted by fagin View Post
    sorry to sideline the post. "Chip Anderson is an expert at this" . So why is an expert on something like this banned ?
    Private matter and no one else's business.
    "Always laugh when you can. It is a cheap medicine"
    Lord Byron

    Take a photo tour of Cape Cod and the Islands!
    www.capecodphotoalbum.com

  13. #13
    Bad address email on file
    Join Date
    Apr 2008
    Location
    Elgin, Scotland
    Occupation
    Optical Laboratory Technician
    Posts
    18
    Holy thread resurrection, Batman! I have a patient today who needs a high plus bifocal with 2.5 base out in distance only in each eye, so is getting a Franklin Split. I was about to send this away to a specialist lab in the UK but fancy giving it a go first before I do. I've had a practice run at Franklins a while ago which looked pretty good, but I just used old rejected lenses with no consideration for the Rx. So my question is this (and I hope Jacqui is still about and has input): with the split lying on horizontal centre line, how do you centre the individual parts of the lenses vertically? Do you block both lenses with their OCs on HCL and then grind them down, or do you block the distance lens with OC 1/4 down from top of frame and the reading 1/4 up from the bottom so that both parts have an obvious OC?

  14. #14
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Sending a PM on this

  15. #15
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    For anyone else that's interested, my default on O.C. placement is 3 above for the read and on or 1/2 below for the read.

  16. #16
    Old Optician to New OD Aarlan's Avatar
    Join Date
    Mar 2005
    Location
    Illinois
    Occupation
    Optometrist
    Posts
    548
    What devices do you use to cut the lenses cleanly and evenly?

  17. #17
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Quote Originally Posted by Aarlan View Post
    What devices do you use to cut the lenses cleanly and evenly?
    I use a small table saw (4 inch blade) from Dremel to do the initial rough cut. Others use a band saw, jewlers saw or just grind off the excess on a disk sander.

    For the final accurate finish I use a machne from another industry that was adapted by me, this makes the angles exact and the surface dead flat.. This also works on hemianoptic and macular degeneration lenses. Chip Anderson uses a flat file mounted on the bench and hand movement, leaves a flat suface but the angles are hard to hold. Clive Noble uses a hand edger.

  18. #18
    Banned
    Join Date
    Jul 2010
    Location
    St. Cloud, Minnesota
    Occupation
    Ophthalmic Technician
    Posts
    3,089
    We adapted an old Coburn 601 surfacer, took the overhead arm off, removed the reciprocating motor, had a new tank built out of stainless, plus a ruler mount. We use a facet making diamond for surfacing the flats. I can take a picture if anyone is interested.

  19. #19
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Quote Originally Posted by MikeAurelius View Post
    We adapted an old Coburn 601 surfacer, took the overhead arm off, removed the reciprocating motor, had a new tank built out of stainless, plus a ruler mount. We use a facet making diamond for surfacing the flats. I can take a picture if anyone is interested.
    You did it the hard way

  20. #20
    Bad address email on file
    Join Date
    Apr 2008
    Location
    Elgin, Scotland
    Occupation
    Optical Laboratory Technician
    Posts
    18
    What's with all the equipment? I just did it by hand!
    I marked my horizontal lines on my four lenses, ground most of the excess off using a bench grinder, then finished off the edges by rubbing the lenses across a sheet of sandpaper placed on a worktop. Perfectly smooth and straight edges.
    I bonded them with epoxy resin and the job was done next day for the patient, who commented they were better than her previous pair which came from Norville, and without the 3 week wait. I was more than delighted by that!

    I used to be a cabinet maker and so I'm used to fine handwork.

  21. #21
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Quote Originally Posted by discostu View Post
    What's with all the equipment? I just did it by hand!
    The reason I have all the equipment is that I was doing 12 - 15 pairs of Franklins, plus 2 - 3 pairs of hemianoptics, plus 1 or 2 pairs of macular degeneration lenses per week. I had to have a system that would do it fast and accurately.

  22. #22
    Bad address email on file
    Join Date
    Apr 2008
    Location
    Elgin, Scotland
    Occupation
    Optical Laboratory Technician
    Posts
    18
    Haha I know Jacqui, I was only messing!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Anyone design a 'ben franklin' lately?
    By mbabc in forum Ophthalmic Optics
    Replies: 31
    Last Post: 04-30-2011, 09:31 AM
  2. Franklin Fianacial company
    By CNG in forum General Optics and Eyecare Discussion Forum
    Replies: 4
    Last Post: 11-28-2010, 09:29 PM
  3. franklin segs
    By gunner05 in forum General Optics and Eyecare Discussion Forum
    Replies: 21
    Last Post: 02-08-2010, 06:53 PM
  4. Franklin Split Lens
    By misstara007 in forum General Optics and Eyecare Discussion Forum
    Replies: 19
    Last Post: 10-24-2008, 04:47 PM
  5. Franklin Bifocals
    By THE MEB in forum General Optics and Eyecare Discussion Forum
    Replies: 14
    Last Post: 06-29-2008, 01:11 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
  •