- Mar 28, 2020
Basically what the title says, I’m talking bout the one that costs 16 dollars.
Yep, Most likely they are running a plt5 450B diode down to 15-20mw to have a proper beam "shape" then putting some sort of filter on top that reduces the optical output power down to less than 5mw. The reason that they don't run the diodes directly at under 5mw is that if you were to run them that low the die wouldn't be fully lasing resulting in a kind of trashy beam profile resembling more of a line than an oval.From what I've heard, LaserLands is a pretty reputable source, and I've also heard people saying they are actually 5mW and that's a great reason to buy from them. I haven't bought one yet so I can't say for sure though. At 450nm, it's quite interesting.
Hm Hak doesn't take this wrong but have you looked at the pointers that LaserGlow offers for like 30$? all with an optical feedback driver to ensure that the output stays under 5mw. And all of the greens come with IR filters.It seems that making any laser to be only 4.99mW is not so easy..
I have metered dozens of aaa pointer pens lasers w/o ONE being 5 mW.
BESIDES== IF someone wants just 5 mW so they need not worry about eye injuries-- there is NO LASER that is 100% EYE SAFE except one that no longer lases.. Injury can happen IF the beam hits our own eye's lens where it become MUCH more that 5 mW.
I won a 5mW green pointer at a Laser Safety course..(door prize @SELEM)
Every time I meter it with any good LPM it rock steady 4.99 mW
I researched it and found these are >$140.
I sure would like to know the motivation behind wanting a true 5mW.
I hope it is not wanting to be reckless w/o any chance harm. IF you find the definition of in the BIG dictionary--- 'TOY' you wont find ANY lasers... I can see why giving any low power lasers to any child is harmful-- treating ALL lasers correctly is a must.
btw--- injuries can happen and we never know-- -no or little pain.. only an eye doctor can see them with a special scope---we MUST protect the children!!
Well for me, it would go way way back to what I said in my intro. Back when the only thing I knew about lasers was $1 red cat toy type pointers. Then I bought one of those AAA green laser pointers at one of those surf shops while on vacation that said 5mW. It was so bright and I thought that this must be what "real lasers" are.I sure would like to know the motivation behind wanting a true 5mW.