My 1W 445 Module build using 4x Anamorphic prisms

**smogthemog** · 08-15-2010, 11:23

I have finally found a little time to start my 445 build to replace the now sold 300mW 473 I had in my RGB.
The module will be Die4 TEC Chilled and the diode will be powered using a single Flex driver. Both of these will be powered from a single 6A SM 12v supply.
The diode will be housed in a modified Meredith mount with an Aixis 405 3x lens collimator screwed into the front.
It will incoperate 4x P1t8ull Anamorphic Prisms with 2 of them expanding the slow axis and the other 2 the fast axis. This in theory, going on Simons 3% loss per prism findings, should give me just over a watt of a good, clean, round beam; if running the diode at around 1.2W output.

Pics below of the build so far:

**danielbriggs** · 08-15-2010, 11:28

Lurrrvleyy Jubbly Sir. Smoggers

But pics seem to be missing a photon or two

**allthatwhichis** · 08-15-2010, 11:49

Purdy box; I'm thinkin he is missin a diode to produce said missing photon... or two.

**smogthemog** · 08-15-2010, 11:57

No

Ive got everything but I didn't want to fit the diode until I have everything else ready and waiting.

It's in the process of being built, it's not anywhere near finished yet. These are just build photos

**badger1666** · 08-15-2010, 12:28

hi mr mog you might want to experiment with the 4x prisms i did not get any where with it
your still going to end up with a far field stripe best i got was 20mm x 3 @22m
adding prisms just swap the fa and sa around again, and got myself all confused, and gave up with that idea, let me know if you have better luck

**smogthemog** · 08-15-2010, 12:50

In theory it should work mate but theory dosen't always follow practice

I will keep everyone posted

**badger1666** · 08-15-2010, 12:57

Originally Posted by smogthemog

In theory it should work mate but theory dosen't always follow practice

I will keep everyone posted

cool best of luck

nice looking so sar though
the beam from a single set is well usable beats my green
if you get in a experimenting mood try two sets together set up the same
and check far field beam

interesting

**smogthemog** · 08-15-2010, 14:25

I do have 2 more diodes, Meredith mounts, TEC's, PBS and one more set of prisms so I may collate all the bits at a later date to make a tiny 2W projector on a similar ilk to that little green one I built a while back

I have a very small scanner set up and could condense down a fair bit reguarding a 445 to lob in front of it - that will have to be another project to add to my list of many though

Simon - if your reading this thread, did you put thermal paste between the module and the mounts you did for me mate when building them up?
Don't want to have to split them if you did

**p1t8ull** · 08-15-2010, 16:00

Originally Posted by smogthemog

Simon - if your reading this thread, did you put thermal paste between the module and the mounts you did for me mate when building them up?
Don't want to have to split them if you did

Message yep Jim.. white goo is there between the mounting block and 4 hole plate, guess I cleaned it up well, with added love and care

**dave** · 08-15-2010, 18:49

very nice machining Mr. P1t8ull

**smogthemog** · 08-16-2010, 01:30

Thanks Si

Yes Dave, you just cant get that same shiney surface with a file that you can do with a machine

I did try and get as better finish as I could on the main chassis but it will all be under a plastic cover and most will be blackened anyway so it won't matter too much

The bits of ally I used where all cut off from our water jet cutter at work - I only wish that all surfaces where as neat as when they come off of that machine! A lovely even mottled effect.

Asking advice here but does anyone invisage any problems that might arrise with this set up? I have tried to think of everything that may cause a problem but sometimes 20 eyes is better than one pair

**dar303** · 08-16-2010, 06:08

Very nice!!! We are all standing by for the result of your second pair of prisms!

Where did you get that qute little TEC by the way?

**smogthemog** · 08-16-2010, 10:45

The TEC came with the die 4 chill from robin.

**MisterWilling** · 08-16-2010, 11:46

Originally Posted by smogthemog

I have finally found a little time to start my 445 build to replace the now sold 300mW 473 I had in my RGB.

Good looking build so far. This one is the first I have seen using 2 sets of prisims.

How much did your 473 sell for?

**smogthemog** · 08-16-2010, 14:06

I sold the 473 for 500 Euro's.

**kecked** · 08-17-2010, 09:48

can you post a pic with the 4 prisms mounted. Not following what you did real well.

**smogthemog** · 08-17-2010, 13:51

Well it's all in the above thread

No, because I haven't yet fitted them. Finding time to do it is an issue with 2 young kids, believe me

**allthatwhichis** · 08-17-2010, 13:59

Originally Posted by smogthemog

Finding time to do it is an issue with 2 young kids, believe me

Blanket statement there huh?

**jaycey** · 08-17-2010, 14:33

Finding time to do it is an issue with 2 young kids, believe me

Tell me about it, I have been putting together my first projecter for 7 months now, I want it so bad but my 2 little en's just dont understand (neither does the missus

)

Good Luck!

**smogthemog** · 08-17-2010, 14:55

Can anyone tell me - if I look at the front of the 445 LD, is it pretty obvious which is the Fast Axis?
I am guessing the FA is 'across' the diode so to speak with the beam looking like an expanded version of the 'chip' that I see in the diode?

So, if the diode is fitted in it's mount with the 'chip' laid horizontal, the FA will also be horizontal and the SA vertical? Yes??

**badger1666** · 08-17-2010, 16:05

hi jim
its opposite to how it looks but if you place the diode so the middle pin is at top then that will be vertical polarisation which is what you want ,but it has to be spot on for the prisims
to work properly,
cheer chris
and hurry i want to see blue pics of the laser sort

Originally Posted by smogthemog

Can anyone tell me - if I look at the front of the 445 LD, is it pretty obvious which is the Fast Axis?
I am guessing the FA is 'across' the diode so to speak with the beam looking like an expanded version of the 'chip' that I see in the diode?

So, if the diode is fitted in it's mount with the 'chip' laid horizontal, the FA will also be horizontal and the SA vertical? Yes??

**swamidog** · 08-19-2010, 23:38

i was able to get a spot down to about 8x3mm at 40 feet using four prisms in a row. there were some some power loss due to waste beams off the prisms, but the beam was still pretty bright (sorry i didn't meter it). there was some noise around the spot, but it would be pretty easy to chop most of that out.

Originally Posted by smogthemog

I have finally found a little time to start my 445 build to replace the now sold 300mW 473 I had in my RGB.
The module will be Die4 TEC Chilled and the diode will be powered using a single Flex driver. Both of these will be powered from a single 6A SM 12v supply.
The diode will be housed in a modified Meredith mount with an Aixis 405 3x lens collimator screwed into the front.
It will incoperate 4x P1t8ull Anamorphic Prisms with 2 of them expanding the slow axis and the other 2 the fast axis. This in theory, going on Simons 3% loss per prism findings, should give me just over a watt of a good, clean, round beam; if running the diode at around 1.2W output.

Pics below of the build so far:

**smogthemog** · 08-24-2010, 00:17

A couple more pictures of where I am at so far.
@ 10 meters I have a spot 10mm x 15mm. A few more small tweeks should make that a little better I am hoping.

**KevSki** · 08-24-2010, 02:02

Very neat Jim ....looking good

Are you getting a celeb in for the BIG switch on?

and is it being televised?

Nice work mate

K

**badger1666** · 08-24-2010, 03:42

nice one jim

next time you fire it up please could you measure the beam at apeture and at 20m
just curious to compare against what i got

thanks
chris

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My 1W 445 Module build using 4x Anamorphic prisms

4x prisms

cool

nice

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