Help!!!

[scotty602]

I am not going to say that I am completely ignorant when it comes to lasers but I am very close. I need some help in choosing a laser for a project I am designing. I would like a laser that will shoot up to 60 yards, be visible in daylight, have an aperture around 2mm and be battery powered. Also is there a device (lenses/mirror) that can be temporarily installed on the front of the laser to make the beam wider? If so how much wider can it make the beam from the 2mm?

Thank you in advance for being patient in my ignorance. :thanks:

 

[lasersbee]

to the Forum...

Don't forget to read the Newcomers section and the Forum Rules...
There is a wealth of Laser related Info on the Forum addressing
your questions... all FREE for the reading...

BTW... you should perhaps read this Thread...

http://laserpointerforums.com/f36/t...scribe-subject-not-woot-check-dude-40185.html

Enjoy your stay...:yh:

Jerry

 

[Greenmechanic]

I am not going to say that I am completely ignorant when it comes to lasers but I am very close. I need some help in choosing a laser for a project I am designing. I would like a laser that will shoot up to 60 yards, be visible in daylight, have an aperture around 2mm and be battery powered. Also is there a device (lenses/mirror) that can be temporarily installed on the front of the laser to make the beam wider? If so how much wider can it make the beam from the 2mm?

Thank you in advance for being patient in my ignorance. :thanks:

The only wavelength that will be visible in (bright) daylight is 532nm
A 50mW 532nm will be visible for 600 yards or more.(that's the dot, not the beam itself)
If you buy a "focusable" laser, you will be able to unfocus it to a beam width of 30 +- mm.
If your laser is non-focusable, a device called a beam expander will work great. (look on e-bay or the B/S/T section here)
Good luck with your project!!

 

[photonaholic]

elcome to LPF. Enjoy your time with us here.

I have compiled a list of "must read" information, it will make your time with us more productive and pleasant.

Laser Resources (for n00bs and veterans alike!)

http://laserpointerforums.com/f36/looking-build-laser-read-me-47684.html

Sam's Laser FAQ (The Laser Bible)

Sam's Laser FAQ - Preface, Introduction, What is a Laser?, Safety

RP Photonics Encyclopedia of Laser Physics and Technology

Encyclopedia of Laser Physics and Technology - an Open Access Resource of In-Depth Information, Free Articles, Nonlinear and Fiber Optics

I have included a handy guide to assist you in finding what you need.

 

[HazzWold1993]

How come you requested the beam size to be 2mm, but you then said you want it to be wider? :S

 

[KiLLrB]

Welcome to the forums

 

[photonaholic]

Help, I need somebody,
Help, not just anybody,
Help, you know I need someone, help.

When I was younger, so much younger than today,
I never needed anybody's help in any way.
But now these days are gone, I'm not so self assured,
Now I find I've changed my mind and opened up the doors.

Help me if you can, I'm feeling down
And I do appreciate you being round.
Help me, get my feet back on the ground,
Won't you please, please help me?

And now my life has changed in oh so many ways,
My independence seems to vanish in the haze.
But every now and then I feel so insecure,
I know that I just need you like I've never done before.

Help me if you can, I'm feeling down
And I do appreciate you being round.
Help me, get my feet back on the ground,
Won't you please, please help me.

When I was younger, so much younger than today,
I never needed anybody's help in any way.
But now these days are gone, I'm not so self assured,
Now I find I've changed my mind and opened up the doors.

Help me if you can, I'm feeling down
And I do appreciate you being round.
Help me, get my feet back on the ground,
Won't you please, please help me, help me, help me, oh.

..........................................................