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I have recently removed a wasp's nest with a laser. Surprisingly, the wasp did not care about me, even from 1 meter distance. Very efficient way to remove those without being attacked by aggressive wasps. The nest was located in a steel container at our rc airfield. I had to do it in order to...

Hi, I have assambled my first 445 nm laser. I have however discovered that these lasers are made up by an array of what seams to be at least 4 lasers on one ship (I can bearly see 4 sources when focusing on long distance). Is there any way to correct this with optics so the beam can be focused...

Hi, I bought a 1W 445 nm laser diode on ebay, and also a suitable driver from the user "o-like" on ebay. This laser are collimated with an Axis (?) lens. What I see is that the beam is spread more than a 405nm diode. Is this 445 nm diode a "multi-mode" diode (several lasers side by side in one...

Hi, I found this laser on ebay: 250mW 405nm Blue-Violet Laser Diode Module, Glass lens - eBay (item 280514405564 end time Jun-06-10 09:41:07 PDT) It is rated to 250mW or so, but can put out much more - up to (probably damaging) 414mW. The price is 75 dollars + 5 dollars in shipping. Is this...

Hi, This is a 24x DVD burner. Anyone with exerience with the laser inside, or similar lasers? Vidar

Hi, I have a few excess chrystals from frevious pointers, and I wonder how many mW of green laser I can get with a 1W pumping diode. I know that tiny tiny tiny chrystals quickly over heat, but what if the chrystal is suitable for 1W pumping diode? Anyone who knows? Is it some list somewhere...

I have done some experiments with a 1W 808nm LD. I did put a lens on it, an it burns the heck out of everything black. However, when I focus the 1W light directly to my skin, nothing happens. Did the same thing with red surfaces too - nothing happens. So my idea is that, even if the power is 1W...

Hi, Why are the 808nm pointers which is rated to maybe 250mW output so much more expensive than a 5 - 10mW green DPSS laser which use a 250mW 808nm pumping diode? Br. Vidar

Hi, I came over this fellow: New 250mW 405nm Blue-Violet "blu-ray" Laser Diode - eBay (item 280376661755 end time Aug-23-09 09:58:52 PDT) 50 dollars including shipping for a 250mW diode. What do you think? Br. Vidar

I was playing around in front of my TV. Then I wanted to see how the phosphorus layer on the TV handled a close up focused beam...then it happened. A bad noise from high voltage discharge from the screen surface, and into the laser housing. Then it just lit very strange, unfocused, and weak...

Hi, I came over this laser: 600mW Portable green laser IR filtered£­>250~500mw Portable green laser£­>Laser&lighting products£­>www.0-like.com The cost is 800 dollars. I know that thr price for other lasers rated at this power is much higher. Is this a real deal, or it it bad filter? It says...

Hi, I discovered a cool effect in glass when it is exposed to a moving violet laser light. If you look at the light spot that hits the glass in a mirror or in a regular window, then try to move the laser around on the surface when it's dark, but still focus your eyes on the small violet spot...

Hi, Yesterday I received two 405nm suitable glass lenses from ebay. I have also tested them on 650nm red laser with great success. I must say when I did read about the increased output you get with this glass lens, compared to the plastic lens - IT IS TRUE!! The spot on any surface is...

Hi, I just received my 300mw+ 650nm laser with glass lens. A LM317 based powersupply included. This laser is quite powerful. It burns wood and white paper. I have used it to engrave my kids name into different plastic and wooden toys. To increase the power further, I ordered two lenses...

Hi, I wonder where you buy glass lenses for my 405nm laser. I already have a couple of glass lenses, but they absorb much of the energy. I can see the lens actually lit from greenish ro redish where the beam is passing. An acrylic lens does not absorb the light, but the focal distance is...

Hi, I just wonder if there is any concerns regarding violet lasers. I think about skin exposure, and the posibility to develope skin cancer. We know that the radiation of violet and UV light from the sun can result in skin cancer. A 200 - 400mW violet laser radiates maybe 100 times that energy...

Hi, Is it some easy way to make a power meter for my lasers? I have no clue whatsoever what the power output is, and I have a violet, green, red, and IR laser which I was hoping to measure the power output. I only know they are burning different matter such as wood, skin, electric tape, ignite...

Hi, I have almost all om my life wondered why it is impossible to make a TRUE white laser by using one single laser unit. I have allways been told that lasers operates in one single wavelength only - end of story. But I still wonder why it is impossible to make a broad spectrum laser which is...

Hi. I have a 635nm laser from a 16x DVD burner. When I focus this laser on a plastic piece, a red lit small dot remains in thin air for as long as the laser is activated - somtimes shorter time. So I wonder if someone knows what is happening. Is it plasma from platic vapour, or what is it? I'm...