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You don't need to list your age for us to be able to tell what it is. Sometimes kids just kind of, you know - act like kids. While we all like to see people being enthusiastic about this hobby, I'm afraid you are going to have to tone it down just a bit if you want to make any friends here...

It seems like you are expecting a response as if you had asked a question, but I don't think you actually asked anything - or made any specific requests. What exactly are you looking for?

Move this to your previous post so people know what you are talking about. Starting a new post like this just makes it confusing.

Congrats - now that you know a little bit about what you are doing from your hands on work you are just a host and some batteries away from your first handheld. First light is always pretty exciting. Thanks for sharing.

Look at a transmittance plot for your shade 12+. Yeah you have a lot of IR, but the IR aint what sunburns your arms when you wear them gloves that barely cover your wrists. Your shade 5 for gas welding might be designed with mainly IR/NIR in mind, but just because most of the intensity from an...

An 11 shade is something like OD 4.3. But you don't know how that breaks up spectrally. Since welding shades are primarily for blocking UV, they tend to have low transmittance at low wavelengths, but might be more transparent at visible wavelengths - but they are overall still very boadband...

You have the right idea there about the total power per area on a distant target. However, will not give the same result as a bunch of individually collimated beams - As mentioned earlier that gives a very large effective emitter. The beam diameter X divergence is more or less constant for a...

I just got a new electric toaster and was curious about what happens when you take it in the bathtub. Now my arms are shaking and I can't let go of the toaster. Do you think I'm being electrocuted? Will rubber boots help?

@Kaan - if you are serious then you should see an ophthalmologist immediately to assess potential retinal damage. They may be able to treat you in a way that can minimize scaring if a burn or lesion has occurred. People on these forums hate seeing such posts because it gives hobby/handled...

The water is no more unpredictable in its scattering than the air... Its the interfaces that get you in trouble. optics aren't going to do what they are supposed to if they are used when the ambient index of refraction is different than what they were designed for - that includes AR coatings...

Gotta love a world that prefers Chinese bulk manufacturing with someone's label printed on it to a high quality handmade even when the bulk junk is more expensive, takes longer to arrive (if it ever does), and comes from a seller with several recent complaints. That being said, maybe you just...

Often in these cases it is best to shell out $600 for the laser that takes 6 weeks to get to you . That way, you know, you appreciate it more and become invested enough in the hobby so you'll want to spend some time going through the forums and learning more.

When talking about large distances, sometimes having a huge divergent beam with high power allows you to be out of alignment and still detectable, but a high quality low power beam can still have superior power density - just not as tolerant of mis-alignment.

There is a fundamental flaw with your original idea. In order for a collimating lens to produce the desired effect (a beam of parallel rays) the source of diverging rays must be placed at the focus of the lens. Since your lens will have a single focal point, you can't have 3 distinct ray...

I also have a problem with the complaint about the price. It is what the market here has set it at. But, that being said, the only reason for Lazeerer to go out of the way to obscure the details of his designs is to protect his ability to sell drivers. That's not a "gift" to the forum by any...

I don't see how crossing 2 beams will produce anything like a cone. You could easily use the small galvo to produce an inverse cone effect by either moving the beam in a circle, or by having the beam focused on the galvo mirror after which it will expand out in a cone, but in either case, the...

I assume you mean expanding the beam. A beam with some given quality has a parameter called the beam parameter product (BPP) which is more or less constant. This BPP is the product of the beam waist (it's smallest diameter) and the divergence angle. If this product remains constant, then the...

Well, any time you add elements you introduce additional losses, which is another reason the 3-element has lower power, but you are correct in principle that using several elements you can get the beam shaping and aberration correction that results in a nice looking output. This will come at...

I am in the process of some lens testing. I am waiting on some mounting and alignment hardware, but hope to get the testing done in the next couple weeks. It is my understanding that the superior beam quality from the 3 element is due to 2 factors. One is a longer effective focal length that...

There are some other lenses in the $7-$10 range that are almost identical to the G-types. Last I heard there was a GB getting put together for some of these: Group buy on g type lenses - Page 4 - Laser Pointer Forums - Discuss Laser Pointers.