Seidel Aberrations--- This is why compromises have to be made when designing progressives:
http://www.quadibloc.com/science/opt0505.htm
Seidel Aberrations--- This is why compromises have to be made when designing progressives:
http://www.quadibloc.com/science/opt0505.htm
thats a very concise explaination of higher order abberrations, thank you for that
June 2020- Zeiss lens options:
https://www.optiboard.com/forums/sho...n-for-a-change
I got a feeling in September I may be referencing this often.
https://www.optiboard.com/forums/sho...765#post559765
This is a good reference thread on how tinting is done on different materials. (Warning: colorful language)
How good is the top coat of an AR?
https://www.optiboard.com/forums/showthread.php/72046-Hoya-lenses-getting-dirty-quickly
Added this thread 01/29/2021 Insufficient uv curing of coats with picture of lens and test for lab techs:
https://www.optiboard.com/forums/showthread.php/66245-OptiBoard-Hall-of-Fame
Last edited by Uncle Fester; 01-29-2021 at 04:52 PM.
https://www.optiboard.com/forums/sho...l=1#post418640
This thread is incomprehensible, but it is one of but many threads that memorialize the greatness that was Darryl Meister.
https://www.optiboard.com/forums/sho...l=1#post172064
Progressive lens "drop" doesn't mean "butter fingers". Who knew?
https://www.optiboard.com/forums/sho...-Driving/page2
Good thread, even if I was "jerkstore".
https://www.optiboard.com/forums/sho...622#post563622
P.D. and O.C. height compensation for higher prism amounts. Less-known stuff. Up your game!
https://www.optiboard.com/forums/sho...730#post563730
Great thread on aniseikonia
Found this page and thought it would interest the geeks among us. If you are researching progressives- realize many of these pictures are produced by the manufacturer and are showing them in their best light.
Also- Newbies will find very helpful a base knowledge of how progressives work by reading HOF threads above concerning designs. Optiboard also has a great thread in the Opticampus forum under CE's "Design of progressives".
Be forewarned!
The bottom of this rabbit hole is not known:
https://www.google.com/search?source...tOoYSY_GBOsmjM
https://www.optiboard.com/forums/sho...bout-Free-Form!
All you want to know about free-form.
I'm bookmarking this because it has great flexible frame resources for those little devils: https://www.optiboard.com/forums/sho...339#post567339
Don't feel blue, but this is excellent industry insiders' views on a popular product: https://www.optiboard.com/forums/sho...ish+blue+light
Or...These guys ahh wicked smaht:
https://www.optiboard.com/forums/sho...rame+materials
https://www.optiboard.com/forums/sho...ley%27s+secret
Lots and lots about POW before it became well-known.
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