For a mini
Test-Buy for my "
medium" lens... Also called "Lens 1" from the last Custom-Lens attempt...
The thing i lost $1000 on for R&D, to go through 33 different experimental custom made lenses made of high transmittance glass AR coated for 400-650nm...
It's sometimes referred to as "v1 lens, even tho correct numbering would be v7....
The v1 was a spherical lens cost $700, had to order 30pcs, and it was BAD... :undecided: Only 15% in power increase (Jay and Dave both have a proto) but creates ugly wings...
We require aspherics which cost a fortune if machined, and have to be precision-molding.
That requires an expensive diamond-turned (single turn) steel molds for glass and then precision-machining on one side if single sided molds (aka PCX or Plano-Convex like the lens Jay uses in his lenses or BCX if Bi-Convex, like "Lens 1" aka v7).
It is a medium FL/NA AR coated glass lens, avg. Po increase ~18-20% depending on diode's wavelength, because unlike acrylics it lets through all wavelengths the same...
It has no visible splatter around the beam, but has to waste 7-8% on that, which creates a rounded-off beam. with a beam thinner than AixiZ but just as round.
Due to slightly longer FL it also burns better than short FL lenses, even tho the power is a few mW less, due to a better defines focus depth - almost like AixiZ but with much more power.
It's the lens i use in my highest power 6x, for an increase resulting in 265mW.. :yh:...
I'll do some last tests, and then, depending on the number of Test-Buy orders, decide if i use a plastic or metal lens nuts...
Metal would require 50pcs minimum for CNC manufacturing, not sure if better for power yet...
Jayrob was kind enough to offer metal lens nut manufacturing for a prototype on his lathe... :yh:
I'll give him a lens for free in return for a CR2 Keychain kit for an 8x diode... :yh:
