- Joined
- Jan 10, 2011
- Messages
- 14
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i will be constructing a 445nm blue laser, but before i purchase all of the components and assemble the device i need to know with 100% accuracy that these components are compatible. if any of you fine individuals own any of these parts it would be grand if you gave in your opinion's on the quality/performance of any of them.
we will start with the diode, as this is what i am most unsure of.
i own a 1 watt o-like 445nm laser (old design) utilizing the xj-a140 diodes, BTW i will be posting a finalized review of it, almost 2 years in the making. fascinating things i will include you may or may not already know. anyway there appears to be 3 types of diodes, the nichia NDB7875, and the unknown diodes used in the XJ-M140 projector and one only known as the H1600.
as of now the diode im most interested in is the NDB7875
i have the specification sheet for the NDB7875 diode, which has a typical output power of 1.6 watts and a maximum current of 1.7 amp's.
my question is are any of these diodes TRULY rated for 2 watts output power? or do you guys just drive them with currents exceeding the maximum stated in the specification sheet. if this is the case how long do they typically last and is there a reduction in diode life that occurs? for example if i was to not adjust the driver and leave it set on 2 amps, would the diodes life be reduced and would i not be able to keep it on for long periods of time?
also how do you guys usually adjust your drivers current? do i just set my multimeter to amps?
here is the host: DIY Stainless Steel Host Assembly, Extended and Tapered Heat Sink, Unmarked
i plan on using a single 18650 lithium ion
here is the driver
Adjustable 2W 445nm/445nm blue laser driver circuit/ 2A/Round [OL-445-2AD] - $14.99 : Zen Cart!, The Art of E-commerce
the idea i have is to solder the negative of the driver to the brass retainer which comes in contact with the pill and case.
diode will be put into an aixiz laser housing with the copper replacement for the brass and a glass lens.
we will start with the diode, as this is what i am most unsure of.
i own a 1 watt o-like 445nm laser (old design) utilizing the xj-a140 diodes, BTW i will be posting a finalized review of it, almost 2 years in the making. fascinating things i will include you may or may not already know. anyway there appears to be 3 types of diodes, the nichia NDB7875, and the unknown diodes used in the XJ-M140 projector and one only known as the H1600.
as of now the diode im most interested in is the NDB7875
i have the specification sheet for the NDB7875 diode, which has a typical output power of 1.6 watts and a maximum current of 1.7 amp's.
my question is are any of these diodes TRULY rated for 2 watts output power? or do you guys just drive them with currents exceeding the maximum stated in the specification sheet. if this is the case how long do they typically last and is there a reduction in diode life that occurs? for example if i was to not adjust the driver and leave it set on 2 amps, would the diodes life be reduced and would i not be able to keep it on for long periods of time?
also how do you guys usually adjust your drivers current? do i just set my multimeter to amps?
here is the host: DIY Stainless Steel Host Assembly, Extended and Tapered Heat Sink, Unmarked
i plan on using a single 18650 lithium ion
here is the driver
Adjustable 2W 445nm/445nm blue laser driver circuit/ 2A/Round [OL-445-2AD] - $14.99 : Zen Cart!, The Art of E-commerce
the idea i have is to solder the negative of the driver to the brass retainer which comes in contact with the pill and case.
diode will be put into an aixiz laser housing with the copper replacement for the brass and a glass lens.