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Old 03-19-2010, 07:05 AM #1
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Default Is Laser a focusing light or defocusing?

Hello everyone!
I am a newbie here. This is my first time post thread here.
Yes, I need your help! Is Laser a focusing light or defocusing?


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Old 03-19-2010, 07:08 AM #2
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Default Re: Is Laser a focusing light or defocusing?

Laser - Wikipedia, the free encyclopedia
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Old 03-19-2010, 08:22 AM #3
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Default Re: Is Laser a focusing light or defocusing?

Welcome 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/lo...-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.

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Old 08-10-2013, 08:10 PM #4
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Default Re: Is Laser a focusing light or defocusing?

Quote:
Originally Posted by conan View Post
Hello everyone!
I am a newbie here. This is my first time post thread here.
Yes, I need your help! Is Laser a focusing light or defocusing?
Did you ever get an answer? I am looking to do the same thing, de-focusing the light of colored laser pointers to illuminate a piece of crystalware from a small distance inside a glass showcase, and achieve a Red, White and Blue effect on it... :-) If you found an answer, can you share it please? Thanks, Michael Buet
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Old 08-10-2013, 08:16 PM #5
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Default Re: Is Laser a focusing light or defocusing?

If you remove the collimator lens from a laser, it will behave as a coherent light flashlight.
edit:
depending on laser power / diode cavity type, it may have one "stripe" of light, or multiple "stripes".

You should never post on threads that old... introduce yourself in the welcome thread. And enjoy lpf

Last edited by Leodahsan; 08-10-2013 at 10:23 PM.
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Old 08-11-2013, 12:09 AM #6
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Default Re: Is Laser a focusing light or defocusing?

Quote:
Originally Posted by MBuet View Post
...to illuminate a piece of crystalware from a small distance inside a glass showcase, and achieve a Red, White and Blue effect on it
You want LEDs. Lasers are not appropriate for this.
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