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[Que]making best lens
Posted: Thu May 17, 2012 7:53 am
by dhirarjanger
hey friends i am going to start a new hmd project and since lens are nt avilable near me so im trying to make my own so i want to know which kind of lens would work best (since i am casting my own) i am going to try two techniques
1. rasin casting
2.molding some acrylic
Re: [Que]making best lens
Posted: Thu May 17, 2012 6:25 pm
by cybereality
I don't know much about making lenses, but I support your effort.
Re: [Que]making best lens
Posted: Sun Jul 01, 2012 3:28 pm
by cadcoke5
I know this thread is dead, but I didn't want to start a new thread on this topic, and it is fairly close to applying to this topic. It is a source for used or surplus lenses, and they have indexed everthing. The prices are not junk-yard level, but the lenses are well cared for and not just thrown in a bin unprotected.
Thursday evening, I mentioned the Surplus Shed store. They mostly do mail order, but do have Saturday hours for in-person visits. They are particularly well known for surplus optics. They have a search tool for optics and also for mechanical gears.
Surplus Shed
1050 Maidencreek Road
Fleetwood, PA 19522
Phone Toll Free in U.S.: 1.877-7SURPLUS (78-7758)
Outside U.S.: 610-926-9226
open for visitors every Saturday from 8:30 AM to 2:30 PM.
www.surplusshed.com
Joe Dunfee
Re: [Que]making best lens
Posted: Sun Jul 01, 2012 6:25 pm
by WiredEarp
Thanks cadcoke5, looks like a good resource!
Re: [Que]making best lens
Posted: Tue Dec 04, 2012 3:35 pm
by 3dpmaster
dhirarjanger wrote:hey friends i am going to start a new hmd project and since lens are nt avilable near me so im trying to make my own so i want to know which kind of lens would work best (since i am casting my own) i am going to try two techniques
1. rasin casting
2.molding some acrylic
Hey dhirarjanger,
I have a lot of experiments about it.
I spend two years making lenses in all shapes for a wide fov hmd.
first of all, it is very important to have a drill press or adapter.
without this tool you cannot polish that fast and precisely.
Second: your mandrel has to be smooth enough to avoid too much grinding and polishing work.
The easiest lens to make are the planar-convex and a planar-concave ones.
If you want to have double-concave or -convex, you can use glass adhesive to glue both planar sizes together.
Do not hesitate to ask what you want to know about diy lenses.
