Stefan,
I asked because the only CDK corrector lens assembly I have ever seen in real life was off a Planewave 20" and it was an extremely deep meniscus doublet that I believe was aspheric - so this seemed to me to be a horribly complex lens assembly that even the experts were getting wrong !
My understanding was that ultimately they changed to a European optician to get it right.
Quote:
Originally Posted by Stefan Buda
I am keeping tabs on labour and material costs and I will be able to tell you how much you would need to fork out.
Same as I did for the Honders: I cut up a few slabs of optical glass and turn the pieces into lenses using normal lens making techniques - see some pics on my earlier phlog: http://www.iceinspace.com.au/forum/s...=151040&page=2
In fact I tried to cut some corners by producing an optical design that used an off the shelf Edmunds PCX lens, but I abandoned the idea because the Edmunds lens is available only for 50mm diameter, which is not enough.
They have a larger version of that particular lens, but it comes only with single layer AR coatings, and that would not satisfy the last point of the above listed requirements. |