Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

need advice from a pro

Joined
Jun 25, 2011
Messages
1,481
Points
63
i have an m140 diode that i think either has something burned into the diode window or the diode window has been burned by the photons from the inside. of course i don't want to lose Another diode.
i'm wondering if it would be possible to remove the window without decanning.
my feeling is that extracting the diode from the module (pressed in by dtr) then decanning and then re-pressing into the module might be riskier than simply (yeah, right) breaking out the window while holding the module upside down to allow gravity to help in keeping fragments from falling inside.
i've tried cleaning it with acetone several times with no luck. the beam spot looks like crap now, looked great after the build

here's 2 pix - i am camera challanged remember

still0001.png


still0000.png
 
Last edited:





Joined
Jun 21, 2012
Messages
2,019
Points
48
Yeah I've broken the window before and it work perfect. Blord recommend it to me and still works just fine.
 
Joined
Dec 31, 2012
Messages
904
Points
0
What is your technique for breaking this window while it's still pressed into the module?

A hammer and an 8-penny nail sounds a little crude for something so delicate.
 
Joined
Jun 25, 2011
Messages
1,481
Points
63
that hasn't been decided yet, looking for ideas. i was thinking more along the lines of a fine stiff wire - and a hammer ;-)
 

Blord

0
Joined
Dec 24, 2007
Messages
5,356
Points
0
A small screwdriver will do the job. You don't need to use brute force to bread that tiny window. Very small pressure and the glass will break.

Try it first on a dead diode for some practice.
 
Last edited:
Joined
Jun 25, 2011
Messages
1,481
Points
63
thanks all. i'll probably try acetone another time before i go breaking glass, but i have my doubts of it working.
 
Joined
Sep 12, 2007
Messages
9,399
Points
113
I've done that once, but the piece(s) remained in the can and distorted the beam when the laser was at certain orientations.
 
Joined
May 27, 2010
Messages
423
Points
0
break the window at the extreme angle as to not touch the actual diode. Ive done it myself. After the first break , turn it upside down so the loose glass falls out. if you hit the diode facet, its over.
 
Last edited:

ped

0
Joined
Nov 25, 2008
Messages
4,889
Points
113
I had the same experience as Cyp , broke the window and bits of glass stayed inside, the diode eventually gave up the ghost.
 
Joined
Jun 25, 2011
Messages
1,481
Points
63
Success! i tried a rough cleaning with acetone again with no luck. i practised removing the windows on 2 led'd diodes first and then busted out the window on my m140. great god photon was with me and my spot looks good (for an m140 with a g1 lens).
the diode is in my ms v3 - review of the host coming soon. thanks for the help guys:beer:
 
Last edited:




Top