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Old 09-29-2014, 12:34 PM #1633
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Mattronium View Post
Double Post but with new info

18 in. x 6 in. x 13 in. Aluminum Case

This is the case that I have, although I think I got mine for $35. I think the sale may only be good till the 29th but they do have discounts often, so you could just wait and watch until it comes down (to $25) again.

So far I'm happy with mine.
Add a 20% coupon (Code: 67653694) and it comes down to 19.99 + shipping (or pickup for free)


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Old 10-05-2014, 12:30 AM #1634
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Industrail 660nm 200mW TTL Red Module Thick Beam Shape Round Laser Beam R200C | eBay

I'll be damned, it really is 200mw output, first laser I've bought from China which matched its output claim.
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Old 10-05-2014, 12:49 AM #1635
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Chris, nice find! I put it on my watch list. I have a 501B host with an LPC-836 laser diode that puts out a little better than 360mW so I will have to think about this. Still, not a bad price either. I have done a lot of business with these people and they know me and I know their sales engineer. They have always been a good company to me.
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Old 10-05-2014, 04:14 AM #1636
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Tnx, you must really get around in the laser market from what I've seen. I bought it because of the fat beam, they claim 1.2 mRad and from the looks of it, I believe that spec might be correct too.

Inside, there is just the diode in the back of the unit and one lens in the front. They just let the natural divergence of the diode expand out to meet the face of the lens to make the fat beam as well as 2X expansion. I don't understand why it is only 2x though.
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Old 10-05-2014, 04:42 AM #1637
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

My guess is that at 200mW any further expansion would make the beam impossible to see. But, I really don't know for sure why they do it that way.
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Old 10-05-2014, 07:11 AM #1638
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I can hardly see the beam as it is unless in complete darkness.
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Old 10-05-2014, 07:21 AM #1639
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Yeah, that's what I meant. I wouldn't be interested in a fat beam laser unless it was high enough in power to see the beam. I have a few low power lasers, but most of mine are well in the higher power range. I built all of those, too. Put all of them in large enough hosts to dissipate the heat.
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808nm 1+W infrared laser
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Old 10-05-2014, 08:26 AM #1640
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I mainly purchased this item ( Industrail 660nm 200mW TTL Red Module Thick Beam Shape Round Laser Beam R200C | eBay ) to learn about optics, I suspected they were using a laser diode without an additional expansion lens (concave-plano) which is something I was interested in doing with a project too. Yes, exactly what they did. I will likely change out the diode with a higher power one in the future so the beam is visible in normal room lighting, instead of complete darkness, as it is with the lower powered diode at 200mw output from the lens.
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 10-05-2014, 06:32 PM #1641
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

You know they are probably using an inexpensive diode like the ML101U29-25 which is capable of doing 300mW. I'd find and heat sink the output transistor on the driver board, then you could advance the multi-turn pot on the driver while checking the power output and get it up to 250mW with no problems. Does the fan turn all the time, or is it a thermostatically controlled one that activates when the diode reaches a certain temperature? If it is the latter, this would also be better as you could know when the diode was overheating as well.
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405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM

Last edited by paul1598419; 10-05-2014 at 06:35 PM.
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Old 10-05-2014, 07:38 PM #1642
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I've noticed the fan must be thermostatically controlled as it does change speed. I will look into it, thanks. (edit: I tried running the 10 turn pot up and down in value and the output of the diode didn't change, might be a TTL setting? The current did go up 20 mils, at most, but no change in output. Now pulling 180 mils, this is what it was pulling when I received it).

Edit: It will operate with full output from about 5 volts through 12 but the fan doesn't run if at five volts and doesn't really start performing well until over 10 volts which is somewhat of a design problem, I think, but only since the driver says 5 to 12 volts. Perhaps the driver was made for other lasers without a fan and the 5-12V range is correct for those (Red diode), just when paired with a fan cooled heat sink unit, the system should not operate below 12 volts for 100 percent duty cycle.



Industrail 660nm 200mW TTL Red Module Thick Beam Shape Round Laser Beam R200C | eBay

For 27 dollars and free shipping the price is great, but the picture is misleading in that you can't see a beam unless in complete darkness and even then, it is subdued.

Wavelength: 660nm
Power output: 200mW
Working Current: <450mA
TTL: 0-5V/0-20kHz
Lifepan (under normal operation): >5000hours
Size of Laser Head 33mmx33mmx50mm
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Old 10-05-2014, 09:59 PM #1643
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Yeah, I've seen these drivers before. They are set up to run at 12 VDC. You really can't go lower and expect it to work properly. I am surprised that you weren't able to get anymore power out when you advanced the pot, though. I've been able to do this in the past with a few of these drivers and got a substantial increase in output power. One thing, you MUST heat sink the output transistor; it runs hot normally and with the added current it would just be too much
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Old 10-06-2014, 02:25 AM #1644
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

If that is a linear driver, then the efficiency
must be terrible @12V. They really should
have a separate power input just for the fan,
or use a 5V fan. Oh, and they are definitely
using fog/haze in that picture.
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Old 10-06-2014, 08:13 PM #1645
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

These drivers incorporate much more than the driver for the laser diode. They are also thermostatically controlled and the fan is activated at a set temperature. The fans I believe are 12 VDC and many of them are set up to drive three laser diodes separately. They also incorporate a TTL input. So, as you can see, it is much more than a simple driver.
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445nm 2.2 watts Nichia MS Envy

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477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
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532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
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632.8nm Siemens HeNe LGK7630S 7.6mW
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635nm Lifetime17 Mini-camo build 687mW
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650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
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Scientech Vector S310 with AC2500 10 Watt LPM
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Last edited by paul1598419; 10-06-2014 at 08:20 PM.
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Old 10-06-2014, 10:48 PM #1646
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Well there is going to be one section for the
fan controller and another to drive the
diode(s) any way you slice it.
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Old 10-06-2014, 11:30 PM #1647
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

True. These drivers are sourced for many different lab type lasers and that is why I think the Vcc is 12VDC. I have one that is a DPSSL 532nm that runs for over an hour last time I used it. It outputs over 230mW of power and the fan only starts when the diode reaches a preset temperature. It has two other outputs for running a red laser and a blue laser, IIRC. I don't believe it draws that much current with the way it is set up now, but it could be used for driving three lasers and all have separate TTL inputs. I love the thing. I could measure the current it draws, but until now, it never seemed like a necessity.
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405nm C11 700mW
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Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
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Old 10-06-2014, 11:40 PM #1648
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Hmm, maybe they are a buck driverthen if
they're running that cool. It's easy to tell
because there will always be a coil. No coils
means linear. Rarely, the coil will not be
visible because it's inside a hybrid module or
a special chip, but it is still there.
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