Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > 445nm Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 09-06-2010, 07:43 PM #1
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default My latest creation, 445nm corrected.

Its been a good fight to get these 445nm LD's beaten into submission

My latest attempt while waiting on my Lava optics was to try a heavy loss
setup with an anamorphic prism pair.

In addition to the prisms, I also tried using a tunnel like aperture after the optics,
which further dropped the output.

I guess it comes down to raw power vs beam quality.. I'm now leaning at beam
quality, and severe loss. I just cant stand a flat beam....

Pic# 3 is approx 6 inches from the lasers, and pic# 4 is approx 20ft.

In both pics there is a comparison raw beam from a separate module running
at the same output at high current. Low current in the 445's only masks the
'ugly mode' which is seen when running near 1W.

I've also noticed that with the prism pair, there is a stray beam which I cannot
seem to get rid of. My guess is that the anomalies that are seen with the 445's
have found a way to also make it into a second 2-5mW beam. I'm trying to
eliminate this beam, but so far, not even the smaller aperture will do the trick.

It is not noticeable in these pics, and the cam is viewing through a filter. The low
power from this second beam is easily filtered...




The output is adjustable on this labb'y from 40mW up to 575mW.


__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 09-06-2010, 07:48 PM #2
Coherent Light's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Coherent Light Coherent Light is offline
Class 3R Laser
Coherent Light's Avatar
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Hey it's an improvement. What kind of power loss are You seeing?
__________________
Coherent::
Coherent Light is offline   Reply With Quote
Old 09-06-2010, 07:48 PM #3
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
ElektroFreak ElektroFreak is offline
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Those are some decent results! Like the case.. looks like a B&W tek 473nm casing, awesome fit.
__________________
Laser Resources (for n00bs and veterans alike!)

Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.
ElektroFreak is offline   Reply With Quote
Old 09-06-2010, 08:05 PM #4
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

I like the looks of your dot. Are you planning on doing another with Dr Lavas optics once they come in?
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Old 09-06-2010, 09:22 PM #5
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

The case is the B&W / CNI... I plan on a similar build with Lavas optics as well.

The losses are in the range of 300mW or so. Before the optics is close to 1W
if I put the aperture on, the dot and beam are totally round, but this is because
of severe clipping plus the prisms, and even more loss.

The beam looks really nice even with the losses. The problem is, the LD has
to work overtime to get good results and remain a class 4 at the same time.

Im planning a 3W handheld with lavas optics, as they will fit a portable a bit
better. Trying to fit the prisms in a heatsink would require too much room. They
also have to be offset from the laser module, which requires a wider heatsink.

With the cylindrical optics, I plan on combining 2-3 beams in a single host,
and should still be able to keep it relatively small.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 09-06-2010, 10:18 PM #6
Coherent Light's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Coherent Light Coherent Light is offline
Class 3R Laser
Coherent Light's Avatar
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

300mw is a significant loss. Lava's Lenses hopefully will not give that much of a drop.
__________________
Coherent::
Coherent Light is offline   Reply With Quote
Old 09-06-2010, 10:31 PM #7
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,439
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,439
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Its a big power loss, but also a great improvement in beam quality - difficult trade off!

I wonder how the corrected beam compares to a PBS combined dual-445 though. That obviously gives a + shaped beam profile, but that my still look better than the stripe from a single diode... and nearly double the power
Benm is online now   Reply With Quote
Old 09-06-2010, 10:46 PM #8
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

There have been issues when trying to combine these via pbs cubes.. Turns out its not very efficient either.

PBS Cubes and 445nm Diodes......
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Old 09-06-2010, 10:56 PM #9
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Quote:
Originally Posted by Benm View Post
Its a big power loss, but also a great improvement in beam quality - difficult trade off!

I wonder how the corrected beam compares to a PBS combined dual-445 though. That obviously gives a + shaped beam profile, but that my still look better than the stripe from a single diode... and nearly double the power

Im actually working with knife edging over a PBS with the 445's. It makes more sense
in that the beams are so flat out of the LD and collimator, there is almost no point
in using a cube...

Putting 2 or more beams side by side, and then through the prism pair, or lava optics,
may be a better solution.

I say this because the output beam before the secondary optics become almost
oval on their own. The two flat spots act as if they are correcting themselves
as far as shape goes. The only remaining problem from there is the rapid divergence.
Correct that with the prisms, and I think the beam will look really nice.

I have to play around with the dual setup and hopefully can get some pics up tonight.
I already have a 2 array and 3 array labby's sitting on my bench. Just have to run
them through the prism pair and see what happens. My guess is that the beam will
look better than using a PBS.. I could be completely wrong, but the 445's seem to
lend themselves to the knife edging setup better than LD's that are single mode.

The only thing with knife edging, is that alignment may be a bit more difficult.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 09-06-2010, 11:13 PM #10
Kevlar's Avatar
Class 3R Laser
 
Join Date: Apr 2010
Location: Mass
Posts: 1,353
Rep Power: 101
Kevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond repute
Kevlar Kevlar is offline
Class 3R Laser
Kevlar's Avatar
 
Join Date: Apr 2010
Location: Mass
Posts: 1,353
Rep Power: 101
Kevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond reputeKevlar has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Very nice work!!

Quote:
Originally Posted by wannaburn View Post
Im planning a 3W handheld with lavas optics, as they will fit a portable a bit better. With the cylindrical optics, I plan on combining 2-3 beams in a single host, and should still be able to keep it relatively small.
I really looking forward to seeing this!!
Kevlar is offline   Reply With Quote
Old 09-07-2010, 02:07 AM #11
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Quote:
Originally Posted by Kevlar View Post
Very nice work!!



I really looking forward to seeing this!!

Thanks

When you see the 3W's you will also have a chance to own one..

They will be limited edition depending on how hard the cylindrical optics
will be to get after the first ones land...

The problem is, I am waiting for a big order from DX, and cant begin the
heatsinks until the optics and the hosts get here. The optic mounts are
going to be milled into the heatsink, and have no idea of the layout yet
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 09-07-2010, 07:09 PM #12
AJ_Dual's Avatar
Class 2M Laser
 
Join Date: Aug 2007
Location: Wisconsin
Posts: 528
Rep Power: 99
AJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond repute
Send a message via Yahoo to AJ_Dual
AJ_Dual AJ_Dual is offline
Class 2M Laser
AJ_Dual's Avatar
 
Join Date: Aug 2007
Location: Wisconsin
Posts: 528
Rep Power: 99
AJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond reputeAJ_Dual has a reputation beyond repute
Send a message via Yahoo to AJ_Dual
Default Re: My latest creation, 445nm corrected.

Here's a (probably) dumb idea, if you're going to combine 3 445 diode's outputs, why not just rotate the diodes/modules in their mounting heatsinks so the beams all rotate their fast axes into a kind of star pattern like an asterisk...

So instead of " - " you get " * ".

Granted, now the fast axes will be spreading just as fast in all directions, and can't be corrected other than focus (unless you correct all three fast axes before combining, which is triple the optics needed...) but if the goal is a round dot more than keeping the divergence tight, that might be a simple way to produce a nearly symmetrical spot, disregarding any other factors.
AJ_Dual is offline   Reply With Quote
Old 09-07-2010, 09:25 PM #13
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Quote:
Originally Posted by AJ_Dual View Post
Here's a (probably) dumb idea, if you're going to combine 3 445 diode's outputs, why not just rotate the diodes/modules in their mounting heatsinks so the beams all rotate their fast axes into a kind of star pattern like an asterisk...

So instead of " - " you get " * ".

Granted, now the fast axes will be spreading just as fast in all directions, and can't be corrected other than focus (unless you correct all three fast axes before combining, which is triple the optics needed...) but if the goal is a round dot more than keeping the divergence tight, that might be a simple way to produce a nearly symmetrical spot, disregarding any other factors.

The only problem there is, to get the beams as tight together as possible, I have found it best to have them 'standing' side by side. If you rotate the modules they will hit the mirrors more like > l/ < rather than > ll <.

This means to get them as close as possible you will end up clipping the edges of the beam...

With 'knife edging' you want them as parallel and close together as you can get them. Once the combined beams pass through the prism's or cylindrical optics, the beam gets even more tighter together.. No matter what shape or orientation they are in, the dot becomes so small, I doubt there would be any noticeable difference other than less power loss.

I didn't get a chance last night, but will tonight to pass a 3W knife edged module through the prism pair and see if there are any undesirable results.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 09-07-2010, 09:42 PM #14
Burnsy's Avatar
Class 1M Laser
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Burnsy Burnsy is offline
Class 1M Laser
Burnsy's Avatar
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Default Re: My latest creation, 445nm corrected.

Extremely nice work on those correction optics +1

Yay! wow that 3W would be awesome
but how would you power such a monster and the host would be huge wouldn't it?
__________________
- Pics of my avatar *link*-

655nm 195mW O-like Dilda
635nm 45mW Sanyo Micro
594nm 2.5mW Laserglow Rigel
532nm 607mW O-like
532nm 77mW Rayfoss
532nm 85mW DL Viper
473nm 104mW DL Spartan - Review link
445nm 1.6W Ehgemus/DTR - link
445nm 268mW Ehgemus
405nm 200mW Beamq *broken - scam* - link
405nm 620mW 12x Chrome Pocket - link

Peak powers of my lasers measured by USB Laserbee 2.5W
Burnsy is offline   Reply With Quote
Old 09-07-2010, 09:51 PM #15
jupiter8's Avatar
Class 1M Laser
 
Join Date: Apr 2010
Location: Adelaide, South Australia
Posts: 176
Rep Power: 19
jupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud of
jupiter8 jupiter8 is offline
Class 1M Laser
jupiter8's Avatar
 
Join Date: Apr 2010
Location: Adelaide, South Australia
Posts: 176
Rep Power: 19
jupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud ofjupiter8 has much to be proud of
Default Re: My latest creation, 445nm corrected.

Very impressive work, for me personally power is nowhere near as important as quality and I'll be emulating elements of your design when I get some time and money to play with my A-140 445 build.

I reckon for a scanner setup what you've done there is near enough to perfect to be useful, what do you think?
__________________
.
.

"four to one against and falling...three to one...two...one...probability factor of one to one...we have normality, I repeat we have normality."

---------------------------------------------------
jupiter8 is offline   Reply With Quote
Old 09-07-2010, 10:33 PM #16
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: My latest creation, 445nm corrected.

Quote:
Originally Posted by Burnsy View Post
Extremely nice work on those correction optics +1

Yay! wow that 3W would be awesome
but how would you power such a monster and the host would be huge wouldn't it?

Im waiting on some amc7135 boards as well as the new host bodies I hate waiting... These drivers are LDO and should do fine with say 2 LD's and 2 7135's hooked 1 per LD.

Cooling will be the factor im most concerned with.. The hosts I ordered for the 3W is a monster, so heat and duty cycle
should be reasonable..






Quote:
Originally Posted by jupiter8 View Post
Very impressive work, for me personally power is nowhere near as important as quality and I'll be emulating elements of your design when I get some time and money to play with my A-140 445 build.

I reckon for a scanner setup what you've done there is near enough to perfect to be useful, what do you think?
Considering even with the losses, the shape of the beam can be tamed quite easily. The divergence has yet to be measured, but at 20ft the dot looks like a 12x 405

Aside from a small stray beam (still have to get rid of) the beam is perfect. Im hoping that
the same results can be had with 2 and 3 diode arrays.

Realistically, I dont see it to be a problem other than loss, and the extra heat from an array.

I like to think of this setup as a pseudo DPSS, in that im putting 1W in and getting near 600mW out corrected... Even in terms of DPSS, this would still be ridiculous efficiency.

Its looking promising indeed
__________________
Recent Projects:
-----

Last edited by JLSE; 09-07-2010 at 10:39 PM.
JLSE is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:03 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC