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Old 06-22-2017, 06:14 AM #17
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by Merpie101 View Post
I wonder if you could get any of the diodes to get close to 495nm... I personally would value 495nm over 589nm
I'll know more once I see one, but from what I've seen so far, my best guess is no. Not with this diode. Probably won't even get to 488nm.


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Old 06-22-2017, 06:42 AM #18
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Default Re: 505nm and 480nm diode RESULTS

My highest prediction is 486nm. And that's starting with one of those higher wavelength diodes to begin with. I can't see them getting any higher than that without damaging them.
But 480+ is still beautiful and unique to own.
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Old 06-22-2017, 07:09 AM #19
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Default Re: 505nm and 480nm diode RESULTS

Woohoo if there's any group buy on the 470-480nm diodes, or someone is wanting to sell me one, I'm in for sure!
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Old 06-22-2017, 11:18 AM #20
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Default Re: 505nm and 480nm diode RESULTS

Just to get this out there, mine are all spoken for as of now. As soon as I hear from them that more diodes are available you guys will hear it.
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Old 06-22-2017, 12:57 PM #21
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Default Re: 505nm and 480nm diode RESULTS

Did we ever get a supposed model number on these? The only diodes in this wavelength range seem to be n‘chias and unless these are putting out 100mW @ 130mW,even that is ruled out. They have one that is designed to be 473nm.
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Old 06-22-2017, 04:08 PM #22
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Default Re: 505nm and 480nm diode RESULTS

Good to see the results, thanks for organizing that! Hopefully they can make 480nm with a little bit of a push. More testing needed I suppose.
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Old 06-22-2017, 04:40 PM #23
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by CynicalBrad View Post
Did we ever get a supposed model number on these? The only diodes in this wavelength range seem to be n‘chias and unless these are putting out 100mW @ 130mW,even that is ruled out. They have one that is designed to be 473nm.
These are Sharp diodes. As for a model number Not so far.



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Originally Posted by diachi View Post
Good to see the results, thanks for organizing that! Hopefully they can make 480nm with a little bit of a push. More testing needed I suppose.
No problem
As bad as this sounds I may put that 473 on ebay to see if I can recoup my money.
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Old 06-22-2017, 05:31 PM #24
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Default Re: 505nm and 480nm diode RESULTS

I'm willing to bet that these very well may be 473nm diodes. I think we need to test one on a spectrometer starting at lasing threshold and plot mA in vs power vs wavelength. Would hate to blow one by over driving say a 30mW 473nm rated diode trying to get 480nm out of it due to a mislabeling.
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Old 06-22-2017, 09:40 PM #25
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Default Re: 505nm and 480nm diode RESULTS

480+ would have been nice but if more become available even at the 473-6 range I'd be very interested in one or two depending on price.
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Old 06-22-2017, 10:26 PM #26
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Default Re: 505nm and 480nm diode RESULTS

It appears that I will be getting some of these (the so called 480nm diodes) to measure with my spectrometer. Once I have done that, I will post the results for everyone to examine. Keep your fingers crossed.
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Old 06-22-2017, 10:31 PM #27
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Default Re: 505nm and 480nm diode RESULTS

Yup. I really hope that my batch ends up being overall higher WL than the first batch. Fingers crossed. 480-485nm is the best blue.
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Old 06-22-2017, 11:45 PM #28
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Default Re: 505nm and 480nm diode RESULTS

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It appears that I will be getting some of these (the so called 480nm diodes) to measure with my spectrometer. Once I have done that, I will post the results for everyone to examine. Keep your fingers crossed.
NICE How many ?

Quote:
Originally Posted by ZRaffleticket View Post
Yup. I really hope that my batch ends up being overall higher WL than the first batch. Fingers crossed. 480-485nm is the best blue.
I hope a 488nm shows itself.
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Old 06-23-2017, 12:01 AM #29
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Default Re: 505nm and 480nm diode RESULTS

Would be interested in seeing a Vf vs If graph for both LDs when someone has a chance to test that out... Thinking of driver options.
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515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
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532nm | Gearbest 303 Pointer | 50mW Metered
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633nm | HeNe | 6mW
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Old 06-23-2017, 12:45 AM #30
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by lazerman121 View Post
NICE How many ?

Several.



I hope a 488nm shows itself.
Me too. If there is one around, I'll probably find it.

Edit: @ diachi

I cannot kill any of these diodes in search of the highest power or wavelength, but will try to get enough information for a reasonable graph. As for drivers, I am leaning toward the adjustable X-Drive by laseerer. I still have a couple in my stock.
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Old 06-23-2017, 01:28 AM #31
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Default Re: 505nm and 480nm diode RESULTS

Quote:
Originally Posted by paul1598419 View Post
Me too. If there is one around, I'll probably find it.

Edit: @ diachi

I cannot kill any of these diodes in search of the highest power or wavelength, but will try to get enough information for a reasonable graph. As for drivers, I am leaning toward the adjustable X-Drive by laseerer. I still have a couple in my stock.
Yes, not looking for a kill test, just a Vf/If graph up to around the rated forward current, maybe a little past it. I'd like to use a flexdrive with these LDs but maximum output voltage is 5.5V.
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



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Old 06-23-2017, 01:45 AM #32
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Default Re: 505nm and 480nm diode RESULTS

laserman121, did they happen to mention what Vf was at 130 mA? Don't have to know, but it would be nice to know.
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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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