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In my experience, giving people the right search terms is all they need to find the information they want. Coincidentally, I find myself often wanting to help new people out without spoon-feeding them. I've figured out a useful trick to link directly to a search result set. Using this URL as a...

So, I've had an idea kicking around for a while. It wouldn't be all that hard to code, but I haven't for fear of no one using it. That didn't stop me making OpenLPM though... :shhh: Basically, some software where you could input a list of serial numbers, then just batch-test the lasers, one...

Introducing the 10W Rubicon X LPM! It was bound to happen eventually! With the rise in prominence of high-powered, multi-diode lasers, it seemed silly to not have a 10W-capable hobby LPM on the market. Thus, ARG and I are happy to offer a new version of the Rubicon, capable of metering up...

Jesus, this thing is scary. :D Trevor

Have two pairs of safety glasses here that I'm not using - might as well pass them along. :) I've tested both pairs, as these are the standard Chinese goggles. One pair has 0% transmission at 445nm; likely OD 6+, but I don't have the equipment to get an exact figure. The other pair is...

So I took this survey... http://spark.rstudio.com/jkatz/dialectquiz/ I apparently have the dialect of my home city, Richmond, VA. But apparently I also have a very Texan way of speaking. :thinking: What about y'all? :beer: Trevor

LPM Design: A Beginner's Guide When I released OpenLPM in late 2011, the goal was to get more people tinkering with Arduino. But... there was one problem with OpenLPM. It had a bit of a steep learning curve. It sort of failed in its original objective to get a lot more people playing around...

Here's a little project I did one afternoon... really just for the sake of doing so. USB-only LPM equipment entered the market in 2010 with the Kenometer USB, which was quickly followed by the LaserBee 2.5W USB, the LaserBee 3.7W USB, Jerry's "DL-Module," and, later, the Delta Isis. These are...

So in 2009 I built an FDA 21 CFR compliant laser warning label generator. Eventually I took down my webspace because I didn't have the money to maintain, taking the generator with it. But, I've been recently given a slice of a server to use, so all the files that used to be on safelasers.org...

LPM Response Time - What does it do for me? Who needs it? One of the main factors that differentiates lower cost LPM's from higher-cost ones is the response time of the sensor. This varies widely in the hobby market, ranging from 0.8s 95% response time of the ubiquitous Ophir 20C-A, to the 30s...

As of July 16th, I've been here four years. Some people have been here a lot longer than me, but I think they'd agree. In the last few months, I've noticed a sizeable upswing in the number of guides, tutorials, compendiums, open-source projects, you name it. There's so many people right now...

A couple weeks ago I got a bit worried about a bizarre spot in my vision. I thought it was a floater but I generated an Amsler grid just to check (no worries - it was just a floater). Since we're a group of eye-safety concerned laserists, I thought I'd share. :p I wasn't satisfied with the...

Introducing the Rubicon LPM and the Delta Line of LPM's Background ARG and I have been working together for a while to bring out a new line of laser power meters. We've named the umbrella project Delta, and we're excited to release our first finished product - the Rubicon. A few months...

Any lovers of severe weather here? I've always loved severe weather, and in the second half of May I went storm chasing with my university's meteorology department. Unfortunately we didn't see any tornadoes. We did, however watch the disaster in Moore, OK happen in realtime on radar. We were...

Hey all! I've got a couple spare Ophir sensors here. They're the Ophir 20C-A-1-Y. I have calibrated these heads to read within 1% of a recently calibrated NIST-traceable LPM - so both of these heads are going to be bang on accurate. The heads available on ebay have no such care taken - they...

Introducing the open source LaserBee SDK! While it's true I've handed the reins to Ellipis to new management, I wanted to contribute one final tool to developers who wish to work on the LaserBee. To avoid having any questions raised about legality, the code linked in this thread is cut down to...

Up for sale is the 1W LaserBee I that I used to develop Ellipsis, and a 3.2W LaserBee II Deluxe version. The 1W LaserBee has exactly the same measurement characteristics as a stock LaserBee, except with a few added benefits. Ellipsis can see increments smaller than 1mW. So, if you use the...

So I've got some extra stuff from my years of going to the scrapyard that I don't think is worth selling, but some people here might want. All is free to a good home, you just need to pay shipping. First up, a few huge inductors: ...and my hand, for scale. They're on big boards that...

I don't think I've ever posted my first build. Probably for good reason. :D Well... I put it together in 2009, I think just before I joined LPF, but just after I found it. I bought a PHR module from Kendall at HighTechDealz, doing around 100mW via a Rckstr driver. I put it in a heatsink from...

The History of the Hobbyist LPM With madmacmo's recent posts about LPF's history, I thought it might be interesting to do some research about the history of the hobbyist laser power meter. Information is pulled primarily from LPF and PL. Price figures have been pulled from LPF, PL, ebay, and...