Old 12-23-2016, 08:06 AM #1
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Default New Member here

My name is Ivan Mendoza and I love lasers, they are fun and cool. My dad bought me my first laser and I that it was the greatest toy ever. Now that I'm old enough, I want to get back at it and build my own collection. I know I'm new here so if anyone can help me gain some positive rep and to build some trust and respect with the more experienced members it be great, thank you for letting me relive my childhood and I hope to pass it on to my kids, just like my dad did.


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Old 12-23-2016, 08:19 AM #2
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Default Re: New Member here

Welcome to the forum. Stay long enough and let people get to know you and you will get reps. Great place to learn about lasers, also how to build and where to buy completed or/and parts for your own builds. Grab some safety glasses first thing ( in the wave length you like to start off in, different wave lengths need different glasses ) be safe and enjoy and welcome .
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Old 12-23-2016, 08:36 AM #3
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Default Re: New Member here

Thank you and ok will do, and I plan on being here a lot and hopefully getting to know yall, but one step at a time, I wanted to see if I could buy a laser from someone, a nice blue 2w laser nothing to crazy but something close to it.
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Old 12-23-2016, 09:33 AM #4
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Default Re: New Member here

Welcome!

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Old 12-23-2016, 09:45 AM #5
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Default Re: New Member here

hi and welcome Ivan,
If you like Protons and Wave lengths your at the right place. here you will find a lot of fine members that will help you out. Enjoy your stay have fun and most of alll be safe

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Old 12-24-2016, 04:57 PM #6
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Default Re: New Member here

Welcome to LPF, I'd start out with one of those 532nm (green) 301 lasers on eBay, those can be more impressive than you would think. You can get them for cheap, too.
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Old 12-24-2016, 06:02 PM #7
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Default Re: New Member here

Welcome, I'd rep you but I always wait a long time to know new members better first.
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Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

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Old 12-25-2016, 02:09 AM #8
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Default Re: New Member here

I have a green one it's a 5mw green 532nm, we like it cause it's not too strong and my dog likes to chase it lol! Now I wanna get a little stronger laser but blue, I've seen some on youtube.
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Old 12-25-2016, 02:12 AM #9
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Thank you alaskan, and I look forward to get yall too!
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Old 12-25-2016, 02:51 PM #10
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Default Re: New Member here

Welcome to the Forum Ivan.
There is a ton of information and tutorials on the Forum
but you will need to hunt it out.
Remember...the search bar is your friend.

As Alaskan said.... Reps are earned not given as gifts.
I'm sure you will earn reps with contributions on the
forum and time.

BTW your reps will only show under your Avatar after
you reach 50 posts. Until then your Reps will show [0]


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Old 12-25-2016, 06:19 PM #11
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Default Re: New Member here

Thank you lasersbee, yes I've been trying to figure out the search bar and I'm getting use to it lol! Ok, yea it's like respect, some ppl expect to be respected right off the back, but if your a stranger to a town where everyone knows each other and you just come in acting like your one of them, they wouldn't like it, probably get shot lol!
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Old 12-25-2016, 06:27 PM #12
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Default Re: New Member here

Glad to see that you understand.
With that attitude the reps will be flying in
before too long.

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Old 12-25-2016, 06:40 PM #13
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Haha thank you, I'll do my best not to let yall down!
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Old 12-27-2016, 05:47 AM #14
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Default Re: New Member here

Going from a 5mW pointer to a 2W beast is a big jump. Certainly something you'd never want your (or anyone else's) kids playing with. If you want to start building your own you might want to consider one of the single mode blue lasers. Try this: https://sites.google.com/site/dtrlpf...nm-laser-diode
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Old 12-27-2016, 03:27 PM #15
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Default Re: New Member here

Haha I dont have kids, I'm 23. I'm still not ready to be a dad yet, I want to but when its the right time
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