Go Back   IceInSpace > Equipment > ATM and DIY Projects

Reply
 
Thread Tools Rate Thread
  #1  
Old 17-07-2019, 10:41 AM
Poita (Peter)
Registered User

Poita is offline
 
Join Date: Jun 2011
Location: NSW Country
Posts: 3,585
Diffuser/Opal Glass in Australia?

I need a 50mm diameter opal glass or similar diffuser to give a near lambertian diffusion from a LED COB.

I have found them at Knight Optical and Edmund Optics, but the postage is around $100 or more.

Does anyone know where to source such a thing locally in Oz?
Reply With Quote
  #2  
Old 17-07-2019, 11:22 AM
DavidU's Avatar
DavidU (Dave)
Like to learn

DavidU is offline
 
Join Date: Jul 2007
Location: melbourne
Posts: 4,716
Just get a 50mm camera lens filter, remove the glass and then wet sand it with #800 wet and dry sandpaper, works a treat and would be very cheap.
Reply With Quote
  #3  
Old 17-07-2019, 07:04 PM
Hemi
Registered User

Hemi is offline
 
Join Date: Dec 2010
Location: Darwin
Posts: 259
Pardon the ignorance, can I ask what you use a lambertian diffuser for? Im guessing for flats but am a relative newbie so no laughing.

Cheers

Hemi
Reply With Quote
  #4  
Old 19-07-2019, 02:18 PM
Poita (Peter)
Registered User

Poita is offline
 
Join Date: Jun 2011
Location: NSW Country
Posts: 3,585
To be honest, it isn't for Astronomy, but I thought I'd ask in here as there are so many optics gurus.
Reply With Quote
  #5  
Old 16-09-2019, 11:03 AM
JohnF (John)
Registered User

JohnF is offline
 
Join Date: Oct 2018
Location: Nimbin NSW Australia
Posts: 63
I have a German Lietz microscope ground glass projection screen in holder for sale. It has ground opal glass in it, but is about 8 inches in diameter.

I live 12km north of Nimbin in NNSW.

It will be cheap -- make me an offer. Would swap for some telescope Eyepieces.

This is not it, but similar to give you an idea of what I mean. Microscope is not included.

http://www.radicalmicroscope.com/stu...e-1224566.html
Reply With Quote
  #6  
Old 17-09-2019, 09:03 PM
Exfso's Avatar
Exfso (Peter)
Registered User

Exfso is offline
 
Join Date: Sep 2006
Location: Adelaide
Posts: 1,616
I use Opal perspex for my light box diffusers, dont suppose that helps much if you specifically want glass.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 10:00 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
SkyWatcher Australia
Advertisement
OzScopes Authorised Dealer
Advertisement
Bintel
Advertisement
Meade Australia
Advertisement
NexDome Observatories
Advertisement
Lunatico Astronomical
Advertisement
Celestron Australia
Advertisement
Astronomy and Electronics Centre
Advertisement