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FrozenGate by Avery

optical head with plexiglass frame

laserluke

laserluke

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Mar 18, 2012
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This is my circular optical head for combining two beams from 2 parallel diodes.
The head is made by three laser cutted plexiglass frames. The plexiglass "sandwich" contains the pbs cube and a prism mirror.
Two parallel beams enters in a face. The combined beam exits at the center of the opposite face.
All the beam's pathways are cutted in the plexiglass frame, so they have no contact with plexiglass.
The sandwich is made of a sheet of 2mm thickness with 2 holes for the entering beams, a sheet of 10mm thickness for the 10x10x10 cube and mirror, and a sheet of 2mm thickness with an hole for the exiting beam.
So the overall thickness is 14mm.
The optical head can be mounted on the top of a laser host (heatsink with two diodes) by using six nylon screws and spacers to keep the optical block isolated from the heat produced by the diodes.

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ah the usual working hard and pretty busy with life :D
how are you luke? :beer:

what is the diameter of the head?
 
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Nice :beer: can't wait to see it come together as your whole handheld, it would be very interesting :D
 
foulmist said:
ah the usual working hard and pretty busy with life :D
how are you luke? :beer:

what is the diameter of the head?
Click to expand...

me too... :)
the diameter is 51mm.
Here are two photos of the handheld laser... this monster is not exactly small :D
...but who said that only small is nice? :D
The head cap and battery cap are now machining.
When complete i will post power measurement results.
What do you think?
-Luke

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Hey when your going to get that much power out of it the size doesn't matter at all :D

Are you using the 9mm diodes or the 5.6mm 445 diodes? You can likely hit 5W with either, maybe 6W with the 9mm :D
 
I have no 9mm diodes but with the aixiz module they can fit directly into the heatsink... the output power should be very high... i have a problem to find a suitable power meter

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laserluke said:
Hi Anthot :beer:
Here the photos without caps...
Comments?
Click to expand...

Yeah they look awesome, very neat, it won't look messy once you have it up and running it would actually look amazing with that whole plexiglass head part glowing 445 with the beam coming out :drool: I really can't wait to see it fired up :D
 
AnthoT said:
Yeah they look awesome, very neat, it won't look messy once you have it up and running it would actually look amazing with that whole plexiglass head part glowing 445 with the beam coming out :drool: I really can't wait to see it fired up :D
Click to expand...

I'm thinking to leave some apertures to the head cap to permit also the glowing light go out laterally...
I also need to choose the tail cap switch but it's a relaxed task because no current flows in the switch, it's only logic level.
Any design suggestion to make nice caps?
 
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laserluke said:
I'm thinking to leave some apertures to the head cap to permit the glowing light go out...
Any design suggestion?
Click to expand...

Yeah that would be awesome :D

Maybe just leave the whole plexiglass part exposed :D

As for your power meter.... I'm clueless, I know there is a 5W laserbee on eBay.
 
Ramsey_innovations said:
Very neat looking design! Is there any way of adjusting alignment?
Click to expand...

Yes, each aixiz module has three fixing screws at one end (1 orthogonal and 2 up and down), and one screw at the other end. So a total of 8 screws for small tilting over 2 axis at each diode.
The plexiglass frame is fixed but there is no need for a further adjustment because the precision of the laser cut is 0.06mm.
 
Ah so the modules won't be tightly seated against the heat sink then. This method will work but has it's obvious downfalls.....anyway it looks pretty cool so kudos to you :beer:
 
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