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Hi there, so I got this unit a while back hoping it was a single Brewster tube particle counter. Alas it twas not the case. However I did notice a wavelength in the output that shouldn't have been there. This thread is meant as documentation for anyone looking at particle counters and as...

I own this watch, I wear it all the time and I have beat it up quite a bit, but it still works perfectly.

All of the sensors you have listed "should" work. I only say should because I am unsure of the wavelength response of those sensors and I was unable to find anything on the internets. I did find one that is the same model number as mine but it looks like it has been through hell. I would ask...

The power meter looks good and in really nice condition. However that Ophir looks as though it has seen better days. If that head does work I think you would have a very hard time retrofiting it to work with the Scientech meter. I would suggest trying to find a head of the same brand, I do...

Here is my favorite, and definitely the most unique thing I own! It is a Lumintop Silver fox flashlight with a cast sterling silver heatsink with a 685nm diode!

I mean if you are just looking for a way to measure IR output it wouldn't really matter which method you use, the only reason I would recommend some high quality IR filters is for a laser that was putting out dangerous levels of IR. To install them permanently. But for measurement purposes it...

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Just saw this on eBay Melles Griot Helium Neon Laser Light B6 70690SL | eBay It is hard to make out but it looks like one of the units is green, might be worth contacting the seller.

I am so jealous! I have been monitoring eBay and I cannot believe I missed that one!

I love the build, mostly because I am impressed with the small form factor. I have an incredibly hard time working on the small scale and am always impressed with someone who can,and make it look good too! +1rep

Well I have been putting off this build thread long enough and unfortunately I had to post this right after Mattronium's thread and do not wish to steal his thunder at all... :yabbem: I too got my diode from TLS's thread HERE however this is were my build will differ from Mattronium's. I got...

I cannot compete with LtKernelPanic :undecided: But I did drop almost $450 on a Dragon Lasers Spartan it regularly does about 120mW on a warm winter day. :umbrella:

It is very likely the YAG is just YAG as it has better properties, if I recall. I would suggest you start reading here: Sam's Laser FAQ - Solid State Lasers Or, Sam's Laser FAQ - Home-Built Diode Pumped Solid State (DPSS) Laser In theory you could just use HR4 and the OC for a linear cavity...

You could add me? I have a Scientech 365 power meter, and I am located in Oregon City, OR 97045.

I really like the host and how it turned out. I tend to not see as many flashlight conversions these days and it is nice to see a great one like this. +1 rep for a great build and thoroughly detailing the process!

You can slim down the cavity, to a linear one by leaving out all the other HRs. Having one behind the YAG then the OC after the KTP. Simple diagram: HR---YAG---KTP---OC Yes, see below... In essance the diode bar causes the YAG crystal to emit 1064nm light which is doubled by the KTP to...

Re: THIS IS MADNESS - 635nm CW3.5 "Twin buster" *Updated info This diode is very interesting, I can't wait till they start becoming more available.

Some of the photos make it seem as if the sphere has a mirror finish instead of being a clear sphere. Very cool!

We are glad to have you back, I was starting to miss all the interesting threads you make. :umbrella:

And yet thorium is over twice as abundant as uranium and easier to seperate. Moreover it is enormously safer and easier to use as nuclear fuel.

My first thought is the batteries, are they capable of supplying the correct current? The next thought I have is the driver, both driver and diode have slight variances between each item produced. So I do not find it suprising that both the diode and driver have outputs slightly under-spec...