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With red LPCs, you've got a +pin, a -pin which is also the case pin, and an unconnected pin. With BR PHRs (and others), you've got a +pin, a -pin, and a case pin. I generally connect the two non+ pins. That way I get a single +pin and a double connected -/case pin - easy to identify. Yes, they...

The problem is, your voltage drop will be 10x as great as with a 1 Ohm resistor. This means, using the standard 4x1N400x for red and 6x1N400x for BR, you wouldn't be able to set the usual currents of 420mA for an LPC or 120mA for a PHR diode using a FlexDrive, as the output voltage would have to...

LPC-815: Vf=3.4V, I=420mA, Pin=1.43W, Pout=315mW, eta=22% PHR-803: Vf=5.7V, I=120mA, Pin=684mW, Pout=130mW, eta=19% I'm not too sure about the Vf of the BR (I had to extrapolate on some IgorT data; I'm pretty sure there's a graph but I didn't find it). The Pout would be without a lens, and...

I just tried the tags. You can only remove those tags that you added yourself, not someone elses tags. It's not a question of rank or privileges.

For the power comparison in the first post: you're comparing 200mW OUTPUT power of a laser diode with the 3W INPUT power of a typical Cree flashlight diode, which are rated at around 110lm/W. It is a bit tricky to convert this to an output watt rating. However, the overall efficiency of these...

To put it yet another way: yes, a laser does have a collimated beam. However, that beam will be a couple of mm wide. With a lens, you can focus this down to a tenth millimeter or less. Generally, the shorter the focal length of your focusing lens, the smaller your spot can be. Due to the wave...

No. You just use the host casing as your negative "lead/wire". You can put a wire from the neg./case pin to the neg. output of your driver, OR you can just connect the neg. output of the driver to the case in which case the path LD can/heat sink/host case is your negative path (actually both the...

*sigh* you still don't get it, and you're still making false statements. And now you're even announcing that you'll be stalking me. Very professional, indeed. I refer you again to sencence #2 in post #11. EDIT: to spell it out: the "flak" remark was meant with regard to people who have the...

Normal white-light LEDs use around 3.7V and up to 800mA, which would be enough. Except that drivers are normally constant-current drivers. This means the native driver would try to feed a possibly much higher current to the FD, but since the FD would only accept a certain current (the one set on...

Hm, have I told anybody to NOT use goggles? Quite the opposite, I've been pointing out cheap but tested alternatives which are more likely to be bought - and thus more useful - than others that cost 5 times as much. Would it be possible for you to stay factual instead of making false statements...

It's pretty likely that I know more about making money than you do (because that's the topic here - not vintage lasers - just in case you're confused on this point). Also, I have nowhere said that the unit is worthless; but I was telling pianoman that he should find and check the market first. I...

@ElektroFreak: I've no problem leaving this deal to pianoman who obviously does take pleasure in it. But, let's talk specifics. How much would you say pianoman can get for this stuff? As you say you're one who can use it: how much are you going to offer him? After you postings I wouldn't...

If you really want safety from direct laser hits, then the OD number is pretty irrelevant, as it won't tell you how well the glasses will stand up. What you'd need are glasses certified to EN 207 as LD5 at your particular wavelength. See this thread, starting at post #13. I'm just passing on...

That will be IR (if it were green, you'd know it).

Click. Be prepared to get a lot of flak from people who probably don impact armor before sitting down to eat with knife and fork. EDIT: Hm, I thought they had other color goggles as well, but I can't find them. The thread above mentions on the last page that they protect against BR as well (not...

Yes, I see it as a problem that one person can hand out hundreds (or thousands) of rep points at a whim (or for a few dollars donation) and without control or even visibility, something which is completely unrealistic to "earn" by just helping people on the forum (what this rep system is really...

That's the basic problem, yes.

ACK on both points :beer:

<off topic> Neither do I. blue lasers has a rep power of 3, mostly because he has 250 rep points; but in the stats I only see two reps: one from scopeguy20 (with a rep power of 17), one from charliebruce (rep power=6)... where the rest come from is anybodys guess... The system is simply far too...

Hi anrchy, many members here (not just senior ones) think it's a great way of showing how cool they are by being rude to newcomers. I agree that the search & FAQ here are way from being userfriendly; I've been here some while and also on many other forums; but here, I'm generally hesitant to...