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I have a few A140 diodes laying around from a somewhat older projector that I'm not doing anything with, so I'm selling of a few cheaply. They're unused, they only made like 2 hours when they were still inside the projector. I'm asking 25 euro excl shipping (and shipping diodes isn't expensive)...

Has anyone recently had contact with PontiacG5? I bought some stuff from him and it hasn't arrived yet after roughly 2 months, and I didn't got a reply back from him. My guess would be that he's quite busy, him last activity was 30th of january, when he send a pm that my stuff was shipped. I'm...

I have a small problem, some/most A140 diodes I have seem to be a bit inefficient. I picked two average diodes and put them in a knife edge setup and I only get 2.5W at 1.6A, dropping of fast to something like 2.4W and below as it heats up. Running ti at 1.7 or 1.8A hardly gets more output of...

I made this LPM but since I don't use it (I prefer my Laser Precision power meter) I might as wel sell it. It uses an Ophir OEM thermopile. I recoated the sensor disk because it had discolorations, it now looks and works fine. I've tested a similar recoated head with more than 10W with a fiber...

A while back Destin (from the smarter every day channel) came to visit me in the Netherlands and we made some video's with lasers. Here's the first one with a HeNe laser at my university: There's more to come!

A while back I measured the output of all the diodes while they were still connected to the c@$10 A14O projector. I though I should post the results so people can see what comes out of a projector. The diodes are running pulsed inside the projector. On the ECO setting the frequency is 120Hz and...

It's really not a typo, apparently Laservision makes laser safety Doggles, laser safety goggles for pets: Laservision Laser Safety Doggles | Laservision If I ever have pets I'm getting one of those.

I see this a lot when people post for the first time: "how many MW does my laser have?" A laser doesn't have MW's or nm's, it has an output power and a wavelength. So if you're wondering what power you laser is, ask this: What is the output power of <some laser> Instead of this: How many MW does...

I had a 635nm diode of 5mW laying around, so I decided to make something small out of it. Nothing fancy, just a few batteries, a switch and a resistor, but completely put into an aixiz module. Doesn't get much smaller than this, even the bullet style pointer look large compared to it...

I finally have the power meter of my dreams. It may not have a huge fancy color graphic display, the perfomance is the best I have seen so far: A spectral flatness better than +/- 1% for 0.25um-2.0um and very flat beyond over the large 0.2um-20um it covers. Nearly all thermal detectors still...

There's a HeCd laser offered on an action site here, it got 2 hour int he counter but it has been in storage for a while. The seller claims it works, which I can probably check, but I'd like some advice on buying my first HeCd. Does a long time of storage raise the helium pressure too much for a...

I've been busy a few weeks back, building a lpm using an ophir head I got. I bought 6 heads of which only one had an undamaged coating. I plan to recoat the 5 and build an lpm with the 6th. It has 1mW resolution, around 1 sec risetime and a max of 5W. These ophir OEM heads are really easy to...

Hi everybody, I have an ophir 10A-V2-SH but no display for it. Fortunately the ophir sensors are easy to power, but considering it's a smart head an ophir nova or orion would be nice. But how expensive are these things? Offers are welcome, but any info on the price these things go for on ebay or...

Hi everyone, I've seen some pictures around of the unfocussed beam profile of the 445nm diodes, but mostly without mentioning the used current. I want to know how the bare output looks for these diodes, so can you all post pics of the unfocused output of the diodes and mention at which current...

I took the time to make a proper beamshot of my laser, I'm curious who be the closest in guessing it's wavelength and power. I haven't added any smoke or anything to visualize the beam more than just plain air (no vacuum).

I really can't explain this behaviour. I got a diode from an early groupbuy of scopeguy20 (I think they were A130's) and build it in a nice module. I started with a currect of 630mA and only got 350mW, which is pretty low. but, as I'm using a plastic lens, I may have some losses. But each time I...

This auction may be interesting, 3 scientech power meter heads. I think these are the sensitive calorimeter things with a 1mV/1mW output. If so, this would easily make 3 neat power meters. If they go relatively cheap, this may be something nice. Note: It's not my auction (I'm on the other side...

Safety is a bit of a hot topic. Some people go without eyewear, others find a $9 plastic goggle enough, other go for the real stuff around $100, and there's even better. Most eyewear we have around is based on plastic. The cheapest stuff melts and is particularly unsafe. Good safety goggles...

I recently bought a Coherent DPY315M-100 on ebay, but it seems I got myself an expensive doorstop. I do not have the Coherent analog controller, so testing is a little difficult, but as the head is physically damaged, I don't expect much. I grabbed the pinout of the head from sam's laserfaq...

Just compare page 37 of the laservision catalog to a screenshot of the current frontpage of o-like.com