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 04-18-2014, 07:53 PM #17
Class 1M Laser
 
Join Date: Mar 2008
Location: NJ
Posts: 213
Rep Power: 406
kaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond repute
kaunak kaunak is offline
Class 1M Laser
 
Join Date: Mar 2008
Location: NJ
Posts: 213
Rep Power: 406
kaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by ricktrent4 View Post
That is around what I was getting. You can see in my video at 3a. I was getting 4.84w at 4.9 volts
I think your meter is accurate. You meter registered between 1.1-1.6w for the new 520nm diodes @ 2.4A, which is well within the expected range and the same as DTR was getting with those diodes. DTR might have just tested a low-efficiency diode or something is wrong the LPM. Hard to say at this point. I thought the test that was on video was done with a 3 element lens. Those numbers would make perfect sense then


kaunak is offline   Reply With Quote







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







Old 04-18-2014, 07:59 PM #18
ARG's Avatar
ARG ARG is offline
Super Moderator
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
ARG ARG is offline
Super Moderator
ARG's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

@kaunak
Diode outputs do vary greatly, also remember that most laser power meters are accurate within 5%.
At higher powers (5W) that 5% error means +/-250mW, across two meters that can be up to a 500mW difference.

The voltage difference can probably be attributed to different voltage drops in the wires.
ARG is offline   Reply With Quote
Old 04-18-2014, 08:01 PM #19
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by Garoq View Post
Jordan, were you using a G-2 or 3 element lens on these tests? I have been getting 4.7-4.9W at 2.8A current using a G-2.
So the two I sent you the other day are doing 4.7W @ 2.8A? Is that a stabilized reading after 10 or so seconds or a peak reading?

Quote:
Originally Posted by ricktrent4 View Post
On the test I did my voltage was higher and I got more power at 4a got 5.1v and 6w could it have been a rare diode or just my power supply?
My old leads used to drop 0.5V more than the nice new ones I got and I have another set that I bought that I don't use that drops nearly 2V more than these. There is a lot of variation in resistance quality with different leads out there. Yours may just have more resistance than mine.

Last edited by DTR; 04-18-2014 at 08:01 PM.
DTR is online now   Reply With Quote
Old 04-18-2014, 08:05 PM #20
InfinitusEquitas's Avatar
Class 4 Laser
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,010
Rep Power: 11179
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
InfinitusEquitas InfinitusEquitas is online now
Class 4 Laser
InfinitusEquitas's Avatar
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,010
Rep Power: 11179
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
Default Re: 3.5W NDB7A75 445nm Laser Diode

Well I just had a lasergasm. Thank you for sharing the results. Looks like the day of the 5W handheld is really not that far off.
InfinitusEquitas is online now   Reply With Quote
Old 04-18-2014, 08:24 PM #21
Atomicrox's Avatar
Class 3R Laser
 
Join Date: Jun 2011
Posts: 2,235
Rep Power: 11361
Atomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond repute
Atomicrox Atomicrox is offline
Class 3R Laser
Atomicrox's Avatar
 
Join Date: Jun 2011
Posts: 2,235
Rep Power: 11361
Atomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond reputeAtomicrox has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Thanks for the tests!

Would you mind comparing divergence to the 638nm mits?
__________________
405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

5W Ophir LPM

HV: Flyback, Plasma Speaker, The Arcsynth and SSTC
Atomicrox is offline   Reply With Quote
Old 04-18-2014, 09:48 PM #22
Class 1M Laser
 
Join Date: Mar 2008
Location: NJ
Posts: 213
Rep Power: 406
kaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond repute
kaunak kaunak is offline
Class 1M Laser
 
Join Date: Mar 2008
Location: NJ
Posts: 213
Rep Power: 406
kaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond reputekaunak has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by ARG View Post
@kaunak
Diode outputs do vary greatly, also remember that most laser power meters are accurate within 5%.
At higher powers (5W) that 5% error means +/-250mW, across two meters that can be up to a 500mW difference
True but that would be odd for two good-quality meters to be out by 250mW in opposite directions at 5W. Even that wouldn't explain the difference between what Rick and others got compared to DTR unless DTR just had a less efficient diode which is very possible.
kaunak is offline   Reply With Quote
Old 04-18-2014, 10:16 PM #23
COMMANDR's Avatar
Class 2 Laser
 
Join Date: May 2008
Location: Belvidere,Il
Posts: 320
Rep Power: 217
COMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond repute
COMMANDR COMMANDR is offline
Class 2 Laser
COMMANDR's Avatar
 
Join Date: May 2008
Location: Belvidere,Il
Posts: 320
Rep Power: 217
COMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond reputeCOMMANDR has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Binning could well account for the difference in the diodes performance.
In semiconductor device fabrication, product binning is the categorizing of finished products
based on their thermal and frequency characteristics. Many semiconductors such as CPUs,
RAM and GPUs are binned, so I bet these diodes are also subject to the same variabilities.
COMMANDR is offline   Reply With Quote
Old 04-19-2014, 01:05 AM #24
Garoq's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,430
Rep Power: 4982
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Garoq Garoq is offline
Class 3R Laser
Garoq's Avatar
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,430
Rep Power: 4982
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by DTR View Post
So the two I sent you the other day are doing 4.7W @ 2.8A? Is that a stabilized reading after 10 or so seconds or a peak reading?
Yes, they were doing 4.8-4.9W max after a few seconds. My first diode was around 4.7W.

Still curious about the lens.
__________________
Serving thousands of satisfied customers since 2010!


Survival Laser, Inc., 2113 W 850 N, Cedar City, UT 84721

Hosts AW Batteries Chargers Diode Drivers Laser Safety Goggles Lenses Accessories

U.S. customers store link>> http://www.survivallaserusa.com
International customers store link>> http://www.survivallaser.com

LPF member 10% everyday discount code = LPF445
Free shipping on US orders over $100 net
Free shipping on international orders over $200 net
Click here for great laser deals for our international customers

PLEASE READ THIS BEFORE BUILDING OR USING A HIGH POWER LASER!

7 Watt S4X Host/NUBM44 Diode/SXD Tutorial
C6 Laser Assembly Tutorial
How to Install a Blank Battery Contact Board Into a Drilled Pill
How to Solder a DTR Diode Module to a Survival Laser Driver & Pill Assembly
Installing and Testing the SL-SD-1/DX 26110 Driver in a C6 Pill
Garoq is offline   Reply With Quote
Old 04-19-2014, 01:08 AM #25
Garoq's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,430
Rep Power: 4982
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Garoq Garoq is offline
Class 3R Laser
Garoq's Avatar
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,430
Rep Power: 4982
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by ricktrent4 View Post
That is around what I was getting. You can see in my video at 3a. I was getting 4.84w at 4.9 volts
Yes, we are getting very similar outputs.
__________________
Serving thousands of satisfied customers since 2010!


Survival Laser, Inc., 2113 W 850 N, Cedar City, UT 84721

Hosts AW Batteries Chargers Diode Drivers Laser Safety Goggles Lenses Accessories

U.S. customers store link>> http://www.survivallaserusa.com
International customers store link>> http://www.survivallaser.com

LPF member 10% everyday discount code = LPF445
Free shipping on US orders over $100 net
Free shipping on international orders over $200 net
Click here for great laser deals for our international customers

PLEASE READ THIS BEFORE BUILDING OR USING A HIGH POWER LASER!

7 Watt S4X Host/NUBM44 Diode/SXD Tutorial
C6 Laser Assembly Tutorial
How to Install a Blank Battery Contact Board Into a Drilled Pill
How to Solder a DTR Diode Module to a Survival Laser Driver & Pill Assembly
Installing and Testing the SL-SD-1/DX 26110 Driver in a C6 Pill
Garoq is offline   Reply With Quote
Old 04-19-2014, 03:12 AM #26
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Nice testing...

Would be perfect with 2 large Li-Ion's using a 3.4 Amp X-Drive.

Just so happens that I just got some of those custom 3.4 Amp X-Drives from Angelos.

He told me that he tested the drivers, and that they will not drop out of regulation until getting to 6.4 Volts supply... Perfect!
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!


Last edited by jayrob; 04-19-2014 at 03:14 AM.
jayrob is offline   Reply With Quote
Old 04-19-2014, 04:05 AM #27
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by Garoq View Post
Yes, they were doing 4.8-4.9W max after a few seconds. My first diode was around 4.7W.

Still curious about the lens.
Yep G-2.

Since your diodes are from the same batch this one this is probably a normal efficiency variation and since the diode is supposed to be 3.5W @ 3A or better based on the datasheet and this one gives 4.3W @ 3A it is still the most over spec diode that I know of. It is crazy efficient. 800mW over spec at the datasheet recommend current is the more than any other diode I am aware of and with some doing 1.3W over spec that is just insane.

To put it in perspective and if this diode is on the low end of efficency a 10% variation is also much better than what we have seen in the past. The 9mm 445's @ 2.4A average between 2.6W-3.2W from low to high which is near a 20% swing and the M140's about 1.9W-2.4W @ 1.8A which is also about 20%. More diodes will need to be tested to get a good sample base for the efficiency variation.

Sine we may not want to run these $450 diodes like we do with the $45 or $70 diodes it is nice to know we can have a 4.3W-4.9W @ 100% of manufacturer rating that will last for a very long time compared to aiming for a 3W+ 445nm from the NDB7875 driving it 150% of the manufacturer rating which can have degradation issues and will certainly have reduce life.


Another test.
Three Element

G-2
DTR is online now   Reply With Quote
Old 04-19-2014, 10:51 AM #28
grainde's Avatar
Class 3B Laser
 
Join Date: Jan 2012
Location: Alsace
Posts: 2,697
Rep Power: 31615
grainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond repute
grainde grainde is online now
Class 3B Laser
grainde's Avatar
 
Join Date: Jan 2012
Location: Alsace
Posts: 2,697
Rep Power: 31615
grainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond reputegrainde has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

So when will we see the first dual diode 10 W handheld... Great work Jordan!
__________________
New to lasers & want some info on how to build a laser? Look here: Build a laser

Need info on goggles? Look here: Get safety goggles now!

FS Custom Sinner Host builds available now!


Here is my old Kryton Groove FS thread!

100mW 405 PHR
700mW 405

2W 445 C6--link--
+2.3W 445 --link--
+2.5W 445 --link--

190mW 450 --link--
15mW 510nm
5mW 532 --link--
25mW 532 --link--

520mW 638 --link--
1W 638

250mW 650
250mW 780

3000 Lm C8 MTG2 @ 6 A!
Poppas mod 3A --link--
Sipik 98 Cu pill/star mod --link--
grainde is online now   Reply With Quote
Old 04-19-2014, 01:54 PM #29
CDBEAM777's Avatar
Class 2M Laser
 
Join Date: Feb 2010
Posts: 879
Rep Power: 11937
CDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond repute
CDBEAM777 CDBEAM777 is online now
Class 2M Laser
CDBEAM777's Avatar
 
Join Date: Feb 2010
Posts: 879
Rep Power: 11937
CDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond reputeCDBEAM777 has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

Quote:
Originally Posted by grainde View Post
So when will we see the first dual diode 10 W handheld... Great work Jordan!
GO LARGE=========> OR, GO HOME !!

See drawing below......

You will see it when the module price drops from the CLOUDS !!!

Then I will build it !! Design based on the Dragon's Head platform.
To me...it looks like the Blue needs optical correction 4 sure.....and while
we are at it....might as well do the Green.

Options; Blue+Blue, Green+Green....or Blue+Green ????

With the Blue+Green option...Control function for:
Blue only, Green only....or Blue + Green = Teal

Eh....Ahhh...yes...the Blue + Green would only be 6+ watts......and optics have their limits....BUT....SOMEONE WILL BUILD IT.......of that you can be sure !!!!

Lite'em Up CDBEAM=======>
Attached Thumbnails
3.5W NDB7A75 445nm Laser Diode-blue_green-extreme-dual-v1.jpg  

Last edited by CDBEAM777; 04-19-2014 at 02:00 PM. Reason: 6 watt disclaimer
CDBEAM777 is online now   Reply With Quote
Old 04-19-2014, 02:21 PM #30
IWIRE's Avatar
Class 2M Laser
 
Join Date: Dec 2013
Location: Oklahoma
Posts: 630
Rep Power: 248
IWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond repute
IWIRE IWIRE is offline
Class 2M Laser
IWIRE's Avatar
 
Join Date: Dec 2013
Location: Oklahoma
Posts: 630
Rep Power: 248
IWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond reputeIWIRE has a reputation beyond repute
Default

Quote:
Originally Posted by jayrob View Post
Nice testing...

Would be perfect with 2 large Li-Ion's using a 3.4 Amp X-Drive.

Just so happens that I just got some of those custom 3.4 Amp X-Drives from Angelos.

He told me that he tested the drivers, and that they will not drop out of regulation until getting to 6.4 Volts supply... Perfect!
Funny you should say that. That's what I'm running in mine. Xdrive set to 3.4 and two 26650`s Works great. My lpm is supposed to be in town. Not sure if it will show up today or Monday. I'll add the results to my build thread when it shows up. I have 1 more 3.5w diode. I'm going to push this one a little harder and see what I can get. Either it will blow or it will go.
Got my lpm. Driver at 3.4a I'm getting 4.3w with G2 and 3.5w with three element. Slipped in a quick test while planting flowers

Started my second 3.5w build running a boost drive set to 3.8a. Not sure how well the single Panasonic 18650 will hold up. Supposedly it is good for 10a. With the output set to 3.8a I'm showing 6.2a on the input. Going to double up on the input wires. I'll let you know if it blows or goes. Putting it in a host I got from DTR. It had a bunch of room for heatsinking. As always it's a mixed up bunch of pieces. I'm expecting the clicky switch to just melt down.
__________________

He said "Let there be light !",
and there was,
and it was good.
So we amplified it.

Last edited by IWIRE; 04-23-2014 at 04:37 AM.
IWIRE is offline   Reply With Quote
Old 04-25-2014, 12:52 AM #31
CHP CHP is offline
Class 1 Laser
 
Join Date: Sep 2007
Posts: 74
Rep Power: 11
CHP has a spectacular aura aboutCHP has a spectacular aura about
CHP CHP is offline
Class 1 Laser
 
Join Date: Sep 2007
Posts: 74
Rep Power: 11
CHP has a spectacular aura aboutCHP has a spectacular aura about
Default Re: 3.5W NDB7A75 445nm Laser Diode

DTR,

Awesome work - thanks for sharing.

I'm trying to gage the power density between the NDB7A75 and the NDB7875. For example, if I focus both lasers at 20 feet which one produces the highest power density (watts/area) or do they both produce the same power density?
CHP is offline   Reply With Quote
Old 04-25-2014, 01:09 AM #32
Junior Member
 
Join Date: Jan 2014
Posts: 25
Rep Power: 0
andyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond repute
andyman andyman is offline
Junior Member
 
Join Date: Jan 2014
Posts: 25
Rep Power: 0
andyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond reputeandyman has a reputation beyond repute
Default Re: 3.5W NDB7A75 445nm Laser Diode

So what drivers are you folks running this with to get 5w output?
andyman 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 02:17 AM.


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