Got my LaserBee A

So there goes the rest of the night... By midnight I should have a couple dozen measurements of each of my five cheapie pen style lasers with a std deviation chart, etc...

But for now I've found that;

The $39.99 50mW greenie from Cajun lasers is putting out about 61-64mW;
My $69.96 50mW 445 from laserlands is 38-39mW;
My two over spec 405 blue rays from swimminsurfer both spec'd at 70mW!
My $7.99 5mW 405 from Amazon (same laser as swimminsurfer) was 26mW.

Only bad deal was the 445, and even though I overpaid, it is still a nice looking, bright blue laser. I just paid too much for it I suppose.

VERY happy with the LaserBee A! Thanks Jerry!

ts

tsteele93 said:

So there goes the rest of the night... By midnight I should have a couple dozen measurements of each of my five cheapie pen style lasers with a std deviation chart, etc...

But for now I've found that;

The $39.99 50mW greenie from Cajun lasers is putting out about 61-64mW;
My $69.96 50mW 445 from laserlands is 38-39mW;
My two over spec 405 blue rays from swimminsurfer both spec'd at 70mW!
My $7.99 5mW 405 from Amazon (same laser as swimminsurfer) was 26mW.

Only bad deal was the 445, and even though I overpaid, it is still a nice looking, bright blue laser. I just paid too much for it I suppose.

VERY happy with the LaserBee A! Thanks Jerry!

ts

Click to expand...

You are very welcome and thanks for choosing a LaserBee LPM....
Glad to see that you are happy with your purchase...:beer:

Jerry

Quick question,

Want to test some goggles. Is it as simple as putting the goggles between the laser and the thermopile and doing a normal test?

TIA,
ts

tsteele93 said:

Quick question,

Want to test some goggles. Is it as simple as putting the goggles between the laser and the thermopile and doing a normal test?

TIA,
ts

Click to expand...

Yes but make sure not to keep the goggle in one place. If you do you might end up damaging or burning the safety goggles and making them in-efficient for use again.

Here is a video i did. Just fallow what i do.


You can see i never keep the glass in one spot. Even a split second at this power will damage them so i was moving them fast.

More or less never let the beam "Dot" stay in one spot. Lower power laser you dont have to move them as fast. Normal if its over 50mW i do this, Anything bellow that depending on the goggles its not needed.

In other words if the laser can burn or smoke something then it can possible damage the goggles.



Hope that helps.

tsteele93 said:

My $69.96 50mW 445 from laserlands is 38-39mW;

Only bad deal was the 445, and even though I overpaid, it is still a nice looking, bright blue laser. I just paid too much for it I suppose.

Click to expand...

Are you sure that is a 445nm laser ? I think it is the 450nm single-mode blue laser. If so then the price seems alright to me.

Yes if that is the single mode it is worth the price you payed for it

if not maybe it can be turned up a bit to make it worth the $69.96 you payed...

The laserlands blue pointer is definitely SINGLE MODE, no question about that.

I'm starting to wonder it's wavelength though. Mine appears far more violet than my 1310mW Rifle... No idea which is high or which is low though. I have heard of 460nm M140 diodes though.

Sigurthr said:

The laserlands blue pointer is definitely SINGLE MODE, no question about that.

I'm starting to wonder it's wavelength though. Mine appears far more violet than my 1310mW Rifle... No idea which is high or which is low though. I have heard of 460nm M140 diodes though.

Click to expand...

The reason your rifle appears to be less Violet is due to the power difference.

If you turn down a 445nm diode to the same power as the single mode 450nm diode they will look nearly identical.

Good to know, +1, and thanks!

I had thought this might be the case, but I figured since the difference in perceived color was not just in the beam/dot, but mostly in the diffuse reflected light, it might actually be a different wavelength.

Take a look at this video i did a long time ago:


You would think they where 2 different WL but they are both 445nm diodes. The one that is Brighter on the Left is t 1.16W and the One on the Left is at ~750mW.

Once i put them equal in power they are Identical in color to the eye.

The single mode blues are indeed 450nm at 40-50mW.

However 445nm diodes can very quit a bit from 440nm - 455nm and possible more so i heard.

So there is a chance your Riffle is at a Higher WL but it would not be fair to compare it to a 50mW laser.

Most 445nm diode start ~445nm though +/- a few "nm". So good chance at ~50mW of 445nm you will be under 450nm.