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

How to Register on LPF | LPF Donations

[CLOSED] Guess what laser is this. - It's a PHR-803T.

Johnyz

0
Joined
Jul 19, 2010
Messages
421
Points
0
It is REALLY foggy today, so I thought it would be nice to do some beamshotting. The photo that came out was so... unique. Now, I'm only gonna tell you one thing: it is NOT PHOTOSHOPPED. I know it looks like, but it really isn't. Now go ahead and guess what laser is this.

And the results are in. 3zuli got it right almost immediately, it was a PHR-803T at 100 milliamps. I know it's unbelievable, I will post photos of it if you want me to.

Explanation: I was very surprised too, here's why it looks like that.
1) Extreme fog - it was probably the foggiest day I've seen last 3 years.
2) Long time exposure - it was a 4 seconds exposure photo.
3) Bad white balance - because of that strange street lamp behind the house.
 

Attachments

  • rsz_100_4416.png
    rsz_100_4416.png
    633.1 KB · Views: 342
Last edited:





Re: Guess what laser is this.

Looks like everybodys favorite nichia diode to me.
 
Re: Guess what laser is this.

phr-803t / 405nm
 
Last edited:
Re: Guess what laser is this.

Looks like a 405nm laser.

LOL, also 405 posts.
 
Last edited:
Re: Guess what laser is this.

Im going to guess its some type of a blue DPSS.
 
Re: Guess what laser is this.

405nm would come out more violetish in the picture.

I'll guess 445nm diode, powered normally. I've had fog dense as milk once, Arctic's dot on a building 35 meters away was barely visible. Beam though... :na:

Kind if similar to what you're getting.

Nice picture, also!
 
Re: Guess what laser is this.

Divergence appears to be typical for a 445..
 
Re: Guess what laser is this.

I'm going to say that the camera apparently screwed up white balance because of that strange lamp that's behind the house being lased, so the photo is more blue than it looks.
 
Re: Guess what laser is this.

Another thing: rayleigh scattering did its job, the beam is much more fatter in the photo than it actually is.
 
Re: Guess what laser is this.

So nobody got it right so far? :thinking:
The suspense is killing me....
 


Back
Top