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First I want to thank Offroad for organizing the groupbuy. He got my admiration for handling this large GB and he did a superb job for updating us about the ongoing process. Sometime the changes in the list went very hectic. :beer:
Now about the Skylaser PL520-50. This is my first green laser with the wavelength 520nm. I was very exited about this color because it was considered a rare kind of green.
Normally green lasers are made from a DPSS system which has a IR diode as a pump. Not this laser, the laser has a true green laserdiode.
The laser has arrived this morning and after unpacking the box I hold the PL520-50 in my hand. It looks identical as my PL532-700 laser.
After turning on the laser gives a green dot. Not the usual 532nm dot but more darker green. If you don't have a comparison 532nm dot you would be mistaken it for just another 532nm dot.
This darker green is also called forest green. The 532nm looks very yellowish to the forest green.
The laser use two 16340 or two 18350 li-ion rechargeable batteries. With the Fluke DMM I measured 155mA in the tail cap when it is on.
The beam is rather thick. It just like the beam of the red LPC826 diode. That is a good thing because it has a better divergence than the ultra-thin beam of the DPSS 532nm green.
The output is 51mW or 55mW depending which LPM you use, the Lasersbee 2.5W USB or the Ophir LPM.
Either case it is above spec of 50mW.
More pictures of the PL host are here PL532-700
Personal label
The laser is manufactured on January 22 2013. It is the 1102th unit of the PL host.
I got the PL660-1000 and the sn is 1301221101
Skylaser has added a very small deadman key. I like it very much!
The comparison 40mW 532nm green laser in C6 host.
Left: 532nm, right: 520nm
The output is very stable. It is a direct diode laser.
More things on the to-do-list : beam divergence measurement, picture of the defocus dot, outside night shots, wavelength measurement.
I hope you like the review so far. :thanks:
More beamshots.
The color difference is very clear between the green lasers.
Now about the Skylaser PL520-50. This is my first green laser with the wavelength 520nm. I was very exited about this color because it was considered a rare kind of green.
Normally green lasers are made from a DPSS system which has a IR diode as a pump. Not this laser, the laser has a true green laserdiode.
The laser has arrived this morning and after unpacking the box I hold the PL520-50 in my hand. It looks identical as my PL532-700 laser.
After turning on the laser gives a green dot. Not the usual 532nm dot but more darker green. If you don't have a comparison 532nm dot you would be mistaken it for just another 532nm dot.
This darker green is also called forest green. The 532nm looks very yellowish to the forest green.
The laser use two 16340 or two 18350 li-ion rechargeable batteries. With the Fluke DMM I measured 155mA in the tail cap when it is on.
The beam is rather thick. It just like the beam of the red LPC826 diode. That is a good thing because it has a better divergence than the ultra-thin beam of the DPSS 532nm green.
The output is 51mW or 55mW depending which LPM you use, the Lasersbee 2.5W USB or the Ophir LPM.
Either case it is above spec of 50mW.
More pictures of the PL host are here PL532-700
Personal label
The laser is manufactured on January 22 2013. It is the 1102th unit of the PL host.
I got the PL660-1000 and the sn is 1301221101
Skylaser has added a very small deadman key. I like it very much!
The comparison 40mW 532nm green laser in C6 host.
Left: 532nm, right: 520nm
The output is very stable. It is a direct diode laser.
More things on the to-do-list : beam divergence measurement, picture of the defocus dot, outside night shots, wavelength measurement.
I hope you like the review so far. :thanks:
More beamshots.
The color difference is very clear between the green lasers.
Last edited:
