Bare tube 594nm HeNe's?
Are there any of these? What do they look like? What kind of duty cycle could one of these handle?
View ArticleLaser beam through a lens
Hi all, I'm trying to figure out the beam diameter after a certain distance using a focusing lens and I've found this website: Focal Spot Size Calculator | Gaussian Laser Beams Considering reliable the...
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New Laser66 520nm
Ok time to make some green 520nm Osram driver set to 500mA :whistle: Attached Thumbnails
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New Laser66 520nm Sale
For sale its a New Laser66 520nm. ( PLP520-B1 ) Special Deal $180 including 1 AW battery and a energizer battery total 5V 2 days shipping. $30 will go to LPF donation :whistle: and $150 will go to...
View ArticleLPM stopped working...
Greetings, I have a 3.7w LaserBee LPM, and for some reason has stopped working. The Thermopile and wiring are looking good, nothing physical wrong with it. Loads the com port properly, everything...
View ArticleNew guy here, looking to build a pistol sight.
Hi all I've been searching and reading for a couple days and haven't found anything on this topic, hopefully you guys can give me some ideas. I'm looking into building a laser sight for a very small...
View ArticleRE-chargable?
Are these batteries rechargeable. I know lithium ions are of course??? FDK CR-1/3N 3V Lithium Battery - 3 Volt 160mAh CR1/3N
View Article594nm pen rebuild (Rigel-2) Current Draw + opinions?
Hey guys! I have a 594nm CNI pen module out of a Laserglow Rigel-2. Eight years ago, the driver broke free from the module, thereby rendering the laser effectively useless. At the time, the module and...
View ArticleLegal Issues?
I was thinking about selling a laser on lpf or ebay, but i'm holding back until I know how to make it so the buyer cant sue me if they blind them-self. I am providing safety glasses and will encourage...
View ArticleNm range of china green laser pointer converted to IR?
I've got a 5mw Chinese laser pointer that I removed the pumping crystal from to make it into an IR pointer. Im going to get a 1mw green laser and convert it, so its a bit safer than my 5mw one. I...
View ArticleJust bought three lasers from Sci-Fi
I've been wanting to add some of the new high power direct diode lasers to my collection and liked the prices SF had on some of these exotic new offerings. They also seem to have a decent reputation...
View ArticleRep system poll - lets end this
The current rep system is less than useless, it's tedious to try to use, annoying and makes me want to not use it at all....almost, making it worse than useless. Out of frustration I have voted before...
View ArticleWhich 16340 batteries are strongest?
I've read every thread on this site that contained information on the 16340, coming to the conclusion that most members prefer the AW brand over all others. Is this still true today? I know the...
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Make a AAA spaceholder/dummy cell
Just a quick tutorial on how to make a AAA dummy cell with a Harbo Freight spring. This came about as I was running out of dummy cells from making pen lasers. They can be found here (item #67582) 200...
View ArticleHi!
Hey LPF! My name is Clay, and I'm from south central Kentucky, USA. I'm about to graduate high school and go to college. I used to be way in to lasers, but lost interest. I guess I couldn't stay away...
View ArticleWTB: 589nm/594nm Pointer & CNI GLP 532
Hello I'm looking for 589nm/594nm Pointer and >100mW CNI GLP or any other branded CNI lasers like novalasers.
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Spectra Physics Scientific 488nm SLM DECSL laser
Ok, I've got a huge number of lasers piling up these days, some i've had for a long time...and I've been too lazy to review them...so I'm going to try to get off my lazy ass and finally do some! For...
View ArticleUnidentified Thermopile
Hi all, Has anyone by chance, seen this model thermopile? If so, have you any idea who made it? it is very nondescript. Two machine threads are drilled into the bottom of this aluminum block. (not...
View Articlerubber cab for pen hosts
i have purchased the tailcaps to use as dustcaps for the focus knob of modules, what can be used for the cheap pen hosts? id prefer something that is deeper, more condom like.
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