Can someone link me up to Eric's/Planters original spatial filter thread please, I cannae find it!
Am i right in thinking its simply a case of adding 'shutters' (razor blades, etc) at the beam waist between the correction optics?
Can someone link me up to Eric's/Planters original spatial filter thread please, I cannae find it!
Am i right in thinking its simply a case of adding 'shutters' (razor blades, etc) at the beam waist between the correction optics?
Frikkin Lasers
http://www.frikkinlasers.co.uk
You are using Bonetti's defense against me, ah?
I thought it fitting, considering the rocky terrain.
Hi Adam,
Here's the youtube link
https://www.youtube.com/watch?v=A5sjyEGFOhE
and here on PL which is maybe where it came up originally
http://www.photonlexicon.com/forums/...Spatial-Filter
Cheers,
Mark.
is this it? http://www.photonlexicon.com/forums/...ybe-ALL)-Beams
The youtube link is #40, page 2 https://www.youtube.com/watch?v=_POfjxeAEvU
and here is my own take, for illustration purposes, using a 400um apperture and a 1:1 telescope http://www.photonlexicon.com/forums/...9&d=1342125279 (no beam measurements, I was just trying to take a pretty picture)
"its called character briggs..."
and here is my own take, for illustration purposes, using a 400um apperture and a 1:1 telescope http://www.photonlexicon.com/forums/...9&d=1342125279 (no beam measurements, I was just trying to take a pretty picture)
What flavor bubble gum do you recommend to hold the spatial filter?
Heh!! This is just some sort of sticky putty and it tastes a bit meh... I call it "rapid prototyping holding-together agent" and it allows fine 3 axis adjustments However, repeatability is an issue.
Joking aside, I have found the sweetening additives in chewing gum to cause increased divergence in beam propagation when used to hold spatial filters in place.
"its called character briggs..."