Is It Correct To Use or Buy 1mW, 5mW Laser Pointer Only?

This 1mW blue laser pointer is very speical and safe to use. I am quite interested in the beam color of 488nm laser. Is it near blue?

Yes, it is a very nice blue-green turquoise color :slight_smile:

Most of it is IR radiation, not visible light. I measured couple of Chinese 1000mW laser pointers and most powerful had 240 mW pure green, rest of it is very dangerous IR radiation - those laser pointers don’t have IR filters.

On the one that did 240mW of 532nm, how many mW did you measure including IR? You say the rest was IR, surely not the rest of 1W?

most of laser pointers are not designed with IR filter. For instance, there might be tiny red light emitting from a high power green laser pointer. High power laser is not recommended.

I am quite interested in blue color laser pointers, such as 460nm, 488nm laser.
Can you show me the real color of 488nm blue laser light?

although IR laser is invisible to eyes, however, it is extremely dangerous to naked eyes. High power lasers are obviously not wonderful choice for use.

Yeah you can buy whats you want. The point is whats you do with it. I have got a 1000mW green laser easily and no law I found for limits for that high power laser. Actually it’s easy to break that laws if they exist.

I can only bear low powered laser pointers range in Class IIIA. I am interested in both 1mW or 5mW green/blue laser pointers. They are using safe and being available at low price.

It is not safe to point high powered laser gadget to yourself and people around. There might be potential dangers to operate a powerful laser. Do be cautious and enjoy laser fun freely.

Ir laser radiation is really very dangerous. Just be cautious with high powered lasers.

The 488nm colour is really nice, anyone knows where to get a good low power 488nm laser pointer for presentation use?

I have never used or seen 488nm laser. I am curious with its beam color in presentation.

Don’t believe the crap you read from people trying to sell you stuff.

Look it up for yourself and think about whether you’re getting trustworthy information.

<a href=>Blue light and retinal damage
<a href=>Blue emission from LEDs

Above, ordinary LEDs; then when you intensify that by what a laser emits:

Specular vs. Diffuse Reflection - The Physics Classroom › … › Reflection and the Ray Model of Light‎
Reflection off of smooth surfaces such as mirrors or a calm body of water
[or shiny metal or glass or plastic] leads to a type of reflection known as specular reflection. …

Laser Safety Training Guide - Princeton University
Apr 9, 2014 - Lasers are classified according to their potential
to cause biological damage. … This includes intrabeam viewing or specular reflections. …

high powered laser pointer might project more invisible ir light. It is not a good choice for new laser users. Do be cautious.

Green laser pointers are popular for field lecturers in Astronomy as they show up well when pointed into the sky particularly if there is dust or moisture in the atmosphere. Everyone I know who uses them this way is careful to not point at aircraft or at people. The laser pointer I bought for this purpose several years ago was sold as being in the 30mw output power range and shows up very well even in the low humidity environment of Nevada.

Green laser pointer with the most sensitvie 532nm green light emitting, is very bright and visible at night.
It is especially suitable for astronomy stargazing.

Thanks a lot for your remind. I will try to know more about laser hazards information first. It is very important before really owing a 460nm blue laser pointer.

Btw 532nm or green lasers in general are HORRIBLE for astronomy since they are the brightest and most picked up color by the human eye. Using a green laser is a great way to ruin your night vision/night eyes.

If you arent serious about it then yeah its good since its very easy to see in the sky

I have never noted much effect as long as it is aimed ONLY at the sky and not bounced off of solid objects or aimed at any one, nor used indoors. If it was not visible in air it would be useless as a outdoor pointer for astronomy.