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Author Topic: The Evolution of one Laserist  (Read 109578 times)

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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #15 on: April 13, 2009, 02:45:57 am »
color mixing, red diameter is larger than green and blue is also bigger.
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #16 on: April 13, 2009, 02:56:10 am »
hopefully the major work is out of the way. fine details and tuning.
gonna go and break up some platters. cannot get a good pair yet, still trying.
check with ya all later

pat allen
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Offline James

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Re: The Evolution of one Laserist
« Reply #17 on: April 13, 2009, 02:57:37 pm »
You do such nice work.

That Aluminum box for the control electronics is super clean!

James.   :)
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #18 on: April 13, 2009, 05:17:43 pm »
Thanks James.
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Offline James

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Re: The Evolution of one Laserist
« Reply #19 on: April 13, 2009, 06:53:59 pm »
You have a beautiful, working solid state RGV projector!

I'm totally jealous.

James.  :)
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #20 on: November 17, 2009, 11:11:52 am »
Update on my projector:

Case is finished
reduced red and bluray beam diameters (405-g-1 lens)
Installed all class 4 safety requirements
Optical position indicator gives actual shutter position
home made shutter from an old galvo rotor i built few years back
Added DZE's color correction board
Modified Norms Driver board for 2 additional outputs, total 5 outputs
working on TEC Cooled dual red and dual bluray setup.
also building my own 532nm dpss green laser with tec cooling on KTP and IR diode.
« Last Edit: November 17, 2009, 12:39:06 pm by Alfa Romeo »
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #21 on: November 17, 2009, 11:23:24 am »
Case back panel, ready for transparent label overlay when powder coating is finished
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Offline James

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Re: The Evolution of one Laserist
« Reply #22 on: November 17, 2009, 04:36:17 pm »
The single plate RGV assembly with three TECs is totally........

uhhhhhhhh..... COOL!  ;D

DUH!  %)

Seriously. That is about the sweetest setup I've ever seen.

I see you have made your own mirror mounts and everything.

I wish you lived in my neighborhood!

James.  :)

PS. I dig the laser burns in your camera's CCD. Better that than your retinas.
« Last Edit: November 17, 2009, 07:02:38 pm by James »
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Offline no-esc

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Re: The Evolution of one Laserist
« Reply #23 on: November 18, 2009, 01:21:33 am »
I am inspired by your design.

I have already started pricing the TEC plates.. LOL

Couple of questions:

Are you heating the diodes to the minimum operating tempature?

Then using the TEC's to keep them there?

Or just using them to cool?

I had been tossing around ideas on designing a DIODE TEC Cooling kit for DIY projectors... and here you have actually implemented it...


WORK WORK WORK WORK ... (although at work I can read msg boards :) )

makes me a dull boy.
« Last Edit: November 18, 2009, 01:28:49 am by no-esc »
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #24 on: November 18, 2009, 07:10:27 am »
hi,
i am just cooling the red,bluray to 60F (15C).
the green i will have to play with, when it arrives. i suspect the ir diode will be cooled and the ktp crystal will be heated to give good analog modulation

pat
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Offline no-esc

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Re: The Evolution of one Laserist
« Reply #25 on: February 05, 2010, 06:06:27 pm »
I just feel the need to give this a bump.... awesome work.
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #26 on: February 06, 2010, 01:12:41 pm »
no-esc Thanks !
I have learned a lot. About a years worth of work. now if i can get my green working better.

pat
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Offline James

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Re: The Evolution of one Laserist
« Reply #27 on: February 07, 2010, 01:10:41 am »
There is no better teacher than personal experience!

You have made some amazing stuff.

James.  :)
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #28 on: May 25, 2010, 02:40:33 pm »
making galvo replacement mirrors, using alum coated fused silica (laptop hd platters)
this looked like the coolest replacement and its free!! loss was too much though. i did learn how to cut glass thats f-n thin, .55mm thick!!
 
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Offline Alfa Romeo

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Re: The Evolution of one Laserist
« Reply #29 on: May 25, 2010, 02:54:54 pm »
400mw green for 150us dollars! how you ask? combine two 200mw modules, using knife edge combining! added heatsink to the driver transistor to eliminate duty cycle issues, for cw use. i have ran the duals full throttle (1.6amps total) 800ma each, for long time. modulation issues offset by 2nd module turning on before 1st module. this is simply Awsome.
 
 
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Of all the things I've lost, it's my mind I miss the most.
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