Fog beams

[USAbro]

Fog rolled in yesterday, so I got some images. The beam of this red laser can never be seen, even at night, but the fog was so thick, it was very easy to see.:drool:
Sorry some of the images (most of them) were out of focus. My camera doesn't have good iso which sucks.

-USAbro

Merry Christmas:san:

Happy Holidays:crackup:

 

[Elektrotechniker]

nice. merry christmas to you too!

 

[starlight]

you need to have you camera and the laser both on tripods for stellar laser photos.

we had thick fog here yesterday also. My PT-54 LED (shooting through a DLP TV lens) was the most impressive to me.

 

[USAbro]

you need to have you camera and the laser both on tripods for stellar laser photos.

we had thick fog here yesterday also. My PT-54 LED (shooting through a DLP TV lens) was the most impressive to me.

Is that a spotlight laser (just kidding) ?!?! Minimal Divergence and huge beam diameter! How many mw is that beam?
Edit: oooh and what about using long time!

 

[starlight]

Is that a spotlight laser (just kidding) ?!?! Minimal Divergence and huge beam diameter! How many mw is that beam?
Edit: oooh and what about using long time!

It is a PT-54 LED. DTR sells them.
I don't have a LPM yet (bought one yesterday from no-spin waiting for it to arrive) so I don't know what mW the beam is. I have tried different lenses and found this one the best. I have no driver to it right now and run it until battery dies, the battery in use right now is from a PS3 controller 3.7 volts @ 570 mAh

PT-54 on a heatsink from a DLP TV

PT-54 shooting through the lens from same DLP TV

 

[USAbro]

So when you bought the diode, you didn't know the power?

 

[starlight]

It is a L.E.D. from a projector not a diode. Red ones are around $10 or $16 with heatsink and optics the blue ones are $18 and green are all gone but are them on Aliexpress for $35 or so.
Search pt-54 or do a search for "Phatlight" and you'll get all the info you want.

 

[USAbro]

Now I feel silly. That's why it's so wide. How many lumens does it claim?

 

[3Pig]

This is my custom C6 PT 54 flashlight compared to a 800-900 lumen flashlight. To my eyes i would guess it to be around 700 lumens.

Even though it takes 20 seconds to become too hot to hold, its still pretty impressive

 

[Alaskan]

DTR used to sell those too, I bought a bunch of them but didn't end up using them, now I'm tempted, nice photo

 

[The Lightning Stalker]

These make a good driver, though a bit
bulky for a handheld.

DC 12A 300W Step Down Buck Converter 7 32V to 0 8 28V High Power for LED Driver | eBay

Oh, and the seller lies. They only go up
to 10A.