Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Some pics.and a strange fog effect W/1W 445nm. (pic. heavy)

Joined
Aug 28, 2009
Messages
1,071
Points
0
I finally got around to taking some pics. of my 445nm.
Was waiting for a foggy night. I woke up at 4:30 one morning and not only was it foggy but there was a very fine mist in the air. PERFECT!
After taking the pics., I noticed a strange phenomenon in the beam. At the end of the beam there was a Q-tip looking termination of the beam. I know it had something to do with the mist but still found it quite strange. I have never seen any laser pics. with this before.

First set is on a clear night.
Hitting a tree about 200' away.

1W445nmLabLaserBeamShots004.jpg


1W445nmLabLaserBeamShots002.jpg

Hitting my shed about 100' away.
1W445nmLabLaserBeamShots008.jpg

This one below is hitting a tree about a mile away. I'd love to had somebody over there to tell me the dot size.

1W445nmLabLaserBeamShots020.jpg

Next, the foggy night. Note the "Q-tip" In a couple of the pics., you can see the beam vaporizing the mist close to the laser
1W445nmLabLaserBamShotsfog-mist007.jpg

1W445nmLabLaserBamShotsfog-mist010.jpg

1W445nmLabLaserBamShotsfog-mist005-1.jpg

1W445nmLabLaserBamShotsfog-mist006-1.jpg

1W445nmLabLaserBamShotsfog-mist003-1.jpg

And last a couple of the beam hitting my fountain. I thought it would look better, but it was too bright for the camera and washed out the patterns.
1W445nmLabLaserBeamShots003.jpg

1W445nmLabLaserBeamShots006.jpg
 
Last edited:





cd520

0
Joined
Aug 2, 2010
Messages
272
Points
0
Nice pics, specially with the fog. Look forward to my own 445 build soon.
 

Grix

0
Joined
Dec 9, 2008
Messages
2,190
Points
63
You sure the "Q-tip" ending is not just the laser hitting the cloud layer?
 
Joined
Aug 28, 2009
Messages
1,071
Points
0
You sure the "Q-tip" ending is not just the laser hitting the cloud layer?
It is possible the clouds were that low. Look in the first fog pic., the "Q-tip looks like it is only 15-20 feet above the house. I've shot thousands of beam shots and never seen that effect before. Nor have I seen the beam terminating in such a short distance from the laser. I am going to try again the next foggy night and compare the 445nm to other wavelengths and see.
 





Top