Recent content by lazylazer

I want to experiment with laser and need a continuous duty laser. I think 1mW is sufficient as long as the dot can be seen indoor. It doesn't have to be red but red seems the most common and cheapest. Searching "red dot laser head" on amazon returns a bunch of them starting at $6 . Seems they...

The comment about polarity is correct. Turns out this laser pointer is case negative; opposite of my previous DPSS laser pointers. I incorrectly thought the pointer was DOA but it in fact works. I should have tried reverse polarity but was afraid it would damage the pointer. Apology to laserland.

I ordered the $19 laser from laserland. It arrived after 3 weeks and is DOA. Using a multimeter I see it draws 1A but no light comes out. When I contacted laserland, they told me to put the batteries in the opposite direction. I did, but of course that didn't work either. I already have three...

A year or two ago the cheapest green laser diode pointer I could find was about $80. Now I see a 510nm green laser diode pointer for $19. Any idea if this is a legit deal?

I followed their instruction on using paypal and received no response. If anyone is successful in buying from them please post.

They now have a note in their home page on how to pay via paypal.

For yesterday and today when I tried to check out at o-like and it sends me to secure.credit-pay.com, and the connection timed out. I sent them an email but received no response. It almost seems they don't want to do business. Any idea what's going on?

When you buy a laser pointer with a specific duty cycle, do you have to turn off the laser yourself when the max on-time is reached, or does the device itself enforce the duty cycle?

Thank you all. Very useful info.

I'm looking to buy a 520nm laser diode pen style pointer powered by common batteries like AAA or AA. Do they exist? The reason is I plan to use this once in a while at star parties and I only turn them on very briefly to avoid too much disruptions. So there is no need for long duration lithium...

I read that cheap green laser pointer may emit high levels of IR that can damage eyes. I happen to have a cheap green laser pointer and have some questions: - if I point the laser into the sky, can the high levels of IR still injure my eyes or cause other danger? - do red or violet laser...

Are all the green lasers made with DPSS (red laser plus a color changer), or are there green laser based on green laser diode? If so, where can I buy them? I'm under the impression it would be more efficient.