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The description of this forum clearly says "Buy, sell, and trade lasers and/or laser pointers.", but I guess people won't complain as long as other stuff stays the exception.

The very same question was asked by the same person here, and in various other places...

Yesss.

Do you log out from the forum (with the "LogOut" button top right), or "just" from Windows? If some others could post their experiences, maybe a pattern would evolve.

It's not the point of a forum to have everyone write to you individually. I guess >95% of all lasers in use around here are these: LPC-815, ~250mW, 660nm PHR-803T, ~100mW, 405nm GGW-H20L, ~250mW, 405nm BDR-203, ~400mW, 405nm various green pens & modules, 5...150mW, 532nm Beam diameter, ~1..3mm...

Considering the general legality of 250mW laser pointers without any protection features, a legal label will be pretty low on everybody's priority list.

Probably they would work for blocking non-red, but still they're not a replacement for "real" green/BR protection glasses. Because the point is not just in blocking light (a piece of black cardboard would do that), but also in transmitting as much as feasible of the non-laser-wavelength light...

They're not really free, you give them your name, address & email in exchange, worth around $10 to any marketing company. I've also found this: "These glasses are magenta/green, which means they probably won't be useful for much else." (except watching the "My bloody valentine" movie).

PS ON (green) should be connected to GND (black). In any case, if you connect -12V to it, you can still use the -12V for something else.

My, are we picky today. Would YOUR postings hold up to that level of scrutiny? EDIT: They're red. According to the description, they enhance the visibility of the beam. So it appears they really are "enhancement" goggles, they transmit red and block (attenuate) everything else. So they would...

Are you sure you've got the correct pinout for the 435nms?

As a rule-of-thumb, with a 1mrad divergence, you'll get a dot size of x mm at x m distance - of course this is only the case for distances >> 10 m or so, since at lower distances, the initial beam diameter and focusing will play a major role. (Determining the dot diameter is also not trivial, as...

Without knowing anything specific about the system in question, I'd say that while it may be possible to make a small profit, you'll have to be prepared to invest a lot of your time. Any hardware more than 10 years old is completely out of date and will probably be of interest and use only for...

For me it's 17.7.09. I assume this gets reset only if you explicitely log out and on again. EDIT: Yes, logged out & on again, got the correct "last visited" date/time. If you've clicked "remember me", your logon status won't expire apparently. See, how easy it is to blame someone completely...

Wouldn't it be more efficient to shut down the computer?

This afternoon my PC monitor broke: I can see the image very faintly under certain angles, it's obvious that the backlighting is not working any more. I've taken it apart, but didn't get very far: I got it separated into the plastic housing, a PCB with lots of components and a big frame with the...

Thanks for the review, worth a rep (not that you need it)! This dealer never responded to my ebay messages (required to get a shipping quote as per his instructions); this review eases any fears that I might be missing out on something great.

Hey, that was a short stay in Tumbolia :eg::angel: When I saw "I'm back" in the list of new posts, I thought it was an update to Dave's thread...

If the first driver worked, why do you think it was faulty? Your link is to a DiY tutorial, no mention of 635nm diodes.

Press it against the wall via a screw, or squeeze it in between heatsink and wall, or something like that.