BWB-10-OEM 473nm laser module info thread

[hakzaw1]

　
Thank you for adding your location--we have great members in China.
I feel you are a bit confused--TEC (cooling) is very rare in star pointers... as they are used mostly for short times and portable lasers with TEC are RARE.

TEC cools your laser head --some are on all the time and others are temp. controlled and work when needed--PLEASE post a link to what you have coming--I am thinking if it is a module it will already have a driver..
DO NOT be quick to test-- as the wrong set-up will harm your 473..
This thread is not about your laser except in color.
I do not think you will need TEC--
　
also please post photos of your 473 BUT DO NOT POWER until you get reply from forum regarding your photos and your link.. there is only ONE correct way and direct from battery can be very bad... even just a few seconds...

hak

[EntropySnow]

　
Thank you for adding your location--we have great members in China.
I feel you are a bit confused--TEC (cooling) is very rare in star pointers... as they are used mostly for short times and portable lasers with TEC are RARE.

TEC cools your laser head --some are on all the time and others are temp. controlled and work when needed--PLEASE post a link to what you have coming--I am thinking if it is a module it will already have a driver..
DO NOT be quick to test-- as the wrong set-up will harm your 473..
This thread is not about your laser except in color.
I do not think you will need TEC--
　
also please post photos of your 473 BUT DO NOT POWER until you get reply from forum regarding your photos and your link.. there is only ONE correct way and direct from battery can be very bad... even just a few seconds...

hak

well.. thanks for your concern but i don't think i'm confused
my head is nearly the same as the photos in this thread except for i haven't got it since we are in national holiday.
my plan is to figure out a way to build a star pointer with this and i know this head is not portable and bright and hard to drive.
when i get it i'll post some photos here.

have to say that in chinese forum no one can be this ethusiasm like you. i have taken a lot of efforts to find something about this head but in ruins until i found this forum.
really appreciate!

[hakzaw1]

OK
..if you have the laser part of these-- you need the rest.. but I hope you are not expecting a bright laser and one with a beam as visible as your green pointer.
To our eyes-- to be equal in perceived brightness- from a 50mW 532 green it takes 200 mW of blue.. maybe less because 473 is a brighter blue.
It will still be a nice (big) laser--but a poor star pointer. (compared to 532nm).

My plan is to replace the pump with a diode blue at 465nm-at 3000 mW my driver is small enough to fit inside the head-I'm adding a fan or 2. Only going with more active (TEC) cooling if needed.. the 2.5A driver is new and only 25usd.
analog modulation and thermal protection..reverse polarity protected- has has all you want.. the correction lenses I will use are $45 (and a good deal!)
It will go into a full color projector I am building for laser show.
good luck-- we will get email if you post more..happy to help.

[EntropySnow]

yes i know it won't be so bright but the color is really really fasinating isn't it
will post here if succeed lighting it up.

[EntropySnow]

need little help here..
i just got my 473 head and i power it up according to the pin layout provided in this thread...
well..actually it did light up but not 473nm. it's only 808nm...
i tried to increased the voltage on the diode, up to 3V but only made more 808nm light..

wondering what's wrong. is it the temperature(TEC) ?

(I set the current limitation to 1A, but all the way up to 3V, the current is not over 1A. I can't remember the specific digits...

[hakzaw1]

WOW lots of stuffs inside.. have not opened mine just yet..
the 'way' these 'came' were never high power 473--they did not have to be

..most likely these we have were replacements for big argon lasers- in things like high speed printers-dna sequencers, confocal microscopes etc.. then *these* were replaced based upon hours of use and THEN they come to us....yeah..
now we have multi-W blue diodes and these can become so much more than they ever were in previous lifetimes..yeah..
mine will have a correct 07E.. so.. yeah..

GL with your star pointer project.. hak

[EntropySnow]

WOW lots of stuffs inside.. have not opened mine just yet..
the 'way' these 'came' were never high power 473--they did not have to be

..most likely these we have were replacements for big argon lasers- in things like high speed printers-dna sequencers, confocal microscopes etc.. then *these* were replaced based upon hours of use and THEN they come to us....yeah..
now we have multi-W blue diodes and these can become so much more than they ever were in previous lifetimes..yeah..
mine will have a correct 07E.. so.. yeah..

GL with your star pointer project.. hak

yes this head was once a part of a some kind machine..
well..so it could also be the lifetime problem? if the lifetime is done...i could never light it up again right?
but since the 808nm diode seems alright, maybe it's crystal problem...
(i thinks my 300RMB just thrown into the sea..

tnank you

[jeejeedr]

Alignment probably. I have several of these and most of them were misaligned. It's a real ********* to align them, but it is possible.
Btw, watch out with that 808 exposed like in the picture. It is not because you can't see the light that it cannot harm your eyes.
Tip to align: use a video camera to see the beam. Then you can see where the focus is, ...

[EntropySnow]

thanks for tip and i do use my cellphone's cam to see the 808
so..how to align them..i'm afriad of messing the whole thing up

[jeejeedr]

Depends what is out of alignment. could be the diode, could be the prism pair or the lenses. Impossible to say which moved. You could inspect the screws and see if there is a component where you can see the glue doesn't correspond with the screw anymore. Then most likely that will be the part to realign. But again, it could be every part.