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Nichia 1.4W NDB7675 462nm Laser Diode
Datasheet
First thing I noticed is the beam shape and divergence seems to be the same as the 1.6W NDB7875 445nm diode. Minor differences in shape here is just from small focusing differences.
My camera does not do the best job of picking it up but there is a touch of violet to the NDB7875 445nm compared to the NDB7675 462nm.
Now here is the power test of the diode.
@ 1.9A the rate of return seemed to be dropping off so no need to push it any further.
There is speculation this is the same production as the NDB7875 but diodes that binned very high and were pulled to sell in different binned lots. I think this make sense as observations seem to show wavelength and efficiency are inversely proportional with the 445nm diodes. Meaning out of X number of the same M140's or NDB7875's the ones that are highly efficient tend to be slightly lower in wavelength and the ones that are high in wavelength tend to be less efficient. This is based off observations from Lazeerer when he binned a large lot of 445 diodes for wavelength and efficiency.
Datasheet
First thing I noticed is the beam shape and divergence seems to be the same as the 1.6W NDB7875 445nm diode. Minor differences in shape here is just from small focusing differences.
My camera does not do the best job of picking it up but there is a touch of violet to the NDB7875 445nm compared to the NDB7675 462nm.
Now here is the power test of the diode.
@ 1.9A the rate of return seemed to be dropping off so no need to push it any further.
There is speculation this is the same production as the NDB7875 but diodes that binned very high and were pulled to sell in different binned lots. I think this make sense as observations seem to show wavelength and efficiency are inversely proportional with the 445nm diodes. Meaning out of X number of the same M140's or NDB7875's the ones that are highly efficient tend to be slightly lower in wavelength and the ones that are high in wavelength tend to be less efficient. This is based off observations from Lazeerer when he binned a large lot of 445 diodes for wavelength and efficiency.
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