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Old 01-14-2011, 05:22 PM #1
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Default Another dual 445 module build

kicking out about 1.55watts





beam at 18m



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Old 01-14-2011, 05:55 PM #2
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Default Re: Another dual 445 module build

Very clean ! Isn't it a bit overkill though ? 1.5W can be achieved with single diode. Even 2W with some of them.
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Old 01-14-2011, 05:59 PM #3
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Default Re: Another dual 445 module build

Nice looking build. Is this going in a RGB?

Quote:
Originally Posted by DrSid View Post
Very clean ! Isn't it a bit overkill though ? 1.5W can be achieved with single diode. Even 2W with some of them.
Running two diodes at a low current will allow it to run longer before over heating or the diodes burning up. Also I think the main goal with this build is to stack the two line shaped dots to get a better beam shape.

Last edited by Helios; 01-14-2011 at 06:02 PM.
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Old 01-14-2011, 06:00 PM #4
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Default Re: Another dual 445 module build

Nice!

I really like the simple and neat looking layout of it.
Is it running fairly cold?
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Old 01-14-2011, 08:45 PM #5
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Default Re: Another dual 445 module build

And this is knife edging? I would like to try this sometime, but I really don't know anything about it.
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Old 01-14-2011, 09:13 PM #6
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Default Re: Another dual 445 module build

Quote:
Originally Posted by DrSid View Post
Very clean ! Isn't it a bit overkill though ? 1.5W can be achieved with single diode. Even 2W with some of them.
as has been said i want the diodes to last a long time.

this isnt a little point that turns on for 30 seconds, this is a module that will stay for up to 10 hours at a time without over heating.

also when using a prism pair you have to get the beams very very close together so you loose power. but you get a better final beam
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Old 01-14-2011, 09:13 PM #7
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Default Re: Another dual 445 module build

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Originally Posted by GBD View Post
Nice!

I really like the simple and neat looking layout of it.
Is it running fairly cold?

once attached to a 10mm base plate in my projector it doesnt even get warm.
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Old 01-14-2011, 09:13 PM #8
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Default Re: Another dual 445 module build

Very nice job Andy- and the photos are incredible-- is that a prism in front of the knife edge combining and what drivers are those?

--thnkx --hak
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Old 01-14-2011, 09:14 PM #9
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Default Re: Another dual 445 module build

Quote:
Originally Posted by benmwv View Post
And this is knife edging? I would like to try this sometime, but I really don't know anything about it.
about knife edging

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Old 01-14-2011, 09:15 PM #10
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Default Re: Another dual 445 module build

Quote:
Originally Posted by hakzaw1 View Post
Very nice job Andy- and the photos are incredible-- is that a prism in front of the knife edge combining and what drivers are those?

--thnkx --hak
its only a camera phone pic nothing special lol

yes a prism pair to correct the beam.

die4laser drivers.
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Old 01-15-2011, 05:19 PM #11
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Default Re: Another dual 445 module build

Nice build! That beam at 18 meters looks really good, at least when compared to one without the prism correction.

Any idea about the beam shape even further away, say at 200 meters or so? I wonder if it remains oval like that or eventually goes to a line. With just a normal lens i noticed that the beam was pretty round at 5 meters or so, but after that it just keeps on diverging in one axis resulting in a line eventually.
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Old 01-15-2011, 06:28 PM #12
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Default Re: Another dual 445 module build

no idea dont have the ability to test at 200 metres

without prism pair -



with prism pair

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