561nm Laser Pointer Presenter Received from Lasence

[julianthedragon]

I'm pleased to share that today I received one of Lasence's 561nm <5mw presentation pointers, confirming that it is in fact now possible to ship this item to the US. I first ordered a unit last summer and it was halted by Chinese customs, but Lara of Lasence recently informed me that they found an agent to ship lithium battery products, so we gave it another shot.

Although the product is ostensibly in testing stage (based on limited no. of units and my discourse with Lara), it leaves a fantastic first impression. The product itself is sleek and futuristic-feeling, the powerpoint functionality is quick and seamless, with impressive range, and of course the laser output. It's pulsed 561nm dpss with a small gaussian/near-gaussian profile, like a tiny yellow-green sun. I have not tested output power but <5mw is certainly believable, even if the color pops due to its proximity to the 555nm peak in wavelength visibility. It seems relatively stable so far, in dry room-temperature conditions.

It has loads of cool features packed into a small package that make me very excited to use it as a one-of-a-kind presentation tool. I can detail those non-laser-related features further in the replies if interest is there.

Major thanks to Lara Sui for making this happen and keeping me in the loop on 561nm diodes and pointers throughout the past year.

 

[Ears and Eggs]

Wow, that is really cool! Unique host and wavelength! Hopefully at some point we can get a group buy on these ones too.

 

[Shmackitup]

Wow, that is really cool! Unique host and wavelength! Hopefully at some point we can get a group buy on these ones too.

Doesn't look like there's a price break unless you buy 100+ pointers.

 

[18LJ]

How much was it. Never bought anything off Alibaba but I remember seeing those listed for dirt cheap but never bothered after reading folks bought some of the 575nm but a few never had them shipped and sounded like they were getting the run around

 

[paul1598419]

Congratulations on this new laser acquirement.

 

[Mattronium]

I would be interested to see the exact wavelength of these.
These new green-yellow lasers seem to be fairly variable on wavelength.

 

[julianthedragon]

How much was it. Never bought anything off Alibaba but I remember seeing those listed for dirt cheap but never bothered after reading folks bought some of the 575nm but a few never had them shipped and sounded like they were getting the run around

$120 + $20 shipping. 575nm is harder to get your hands on but Lasence shouldn't be taking people's money and running with it--when my initial order couldn't be fulfilled they immediately took me through the refund process. If it was another shop on albibaba then,

I would be interested to see the exact wavelength of these.
These new green-yellow lasers seem to be fairly variable on wavelength.

I was wondering the same. Would need to find a spectrometer

 

[Sowee7]

I would be interested to see the exact wavelength of these.
These new green-yellow lasers seem to be fairly variable on wavelength.

The wavelength varies a lot, I've seen some do 556nm at room temp and some do 564nm

 

[kecked]

The company with the 575nm was opt not lasence and it was not the opt in Europe. It was opt in China. They vanished. Lasence is legit and a good company.

 

[Sowee7]

The company with the 575nm was opt not lasence and it was not the opt in Europe. It was opt in China. They vanished. Lasence is legit and a good company.

OPT hasn't vanished, they sell 558nm modules. if you ask them enough, they may sell you a 565nm module.

 

[Shmackitup]

Yes, OPT Laser is still around. I just received this email from them like a week and a half ago.

 

[kecked]

Well they stopped responding to me about fixing my 575nm laser with blown pump. I shipped it back to them and the claimed it was not made by them and that was that.

 

[paul1598419]

Well they stopped responding to me about fixing my 575nm laser with blown pump. I shipped it back to them and the claimed it was not made by them and that was that.

Sorry to hear that your laser blew the pump diode. If you can't change it yourself I doubt there is anything else you can do. Thankfully mine is still working well

 

[Sowee7]

Sorry to hear that your laser blew the pump diode. If you can't change it yourself I doubt there is anything else you can do. Thankfully mine is still working well

The pumps in those 57xnm modules are very sensitive and can randomly break for no reason

 

[CurtisOliver]

Well they stopped responding to me about fixing my 575nm laser with blown pump. I shipped it back to them and the claimed it was not made by them and that was that.

That’s dodgy customer service. I know to avoid Opt lasers then. It is possible that they overdrive the pumps? IR diodes are not usually that electronically sensitive.

Julian. That is such a good price on a 561 +/-5nm pointer. I was worried about that internal battery myself

 

[Sowee7]

That’s dodgy customer service. I know to avoid Opt lasers then. It is possible that they overdrive the pumps? IR diodes are not usually that electronically sensitive.

Julian. That is such a good price on a 561 +/-5nm pointer. I was worried about that internal battery myself

I'm pretty sure they the diodes are overdriven to output higher powers and to keep the cost low