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Hi to all!! I have found in a old lamp-holder crystal, and I have take it to put with all my laser stuff. I have tested it with some laser, and some wavelength, but when I have shine my blu-ray in it, I have seen a cool green-violet beam inside the crystal. It seems to have a special features...

Hi to all!! I have made some pics of some combination of my lasers. I have expanded the beams to made a better pics to view the result in large dimensions. Note that 405nm + 660nm make a ring of purple light, and in the center of the beam we can see the white light. If anyone will make other...

Hi to all! Anyone known how the laser thermometers work? How they can discover the temperature of a surface? By the reflection of the light? Gregorio

I have do some trigonometric calculation, to calculate the expansion of a laser beam, knowing the distance of the "target". I'm not very good in math, then if I have done any error, please let me know :) Sorry for the very bad schematic beam, I have drawn it very large to simplify the read. I...

Today my posts counter has stopped to 74 post, also if I make new posts. Anyone know why, or has the same problem? Gregorio

Post your car pic, and describe it and its engine. (and if has, its technology functions like TV, DVD, Hi-Fi) The winner is who has a car with a laser show into ;D

I have bought a laser beam expander from DL. It is come to me with a part unmount, the custom has unscrewed it (I think to see if into there is any kind of drugs or illegal substance to import), but I have mount the part, and it work great. At night, vith my Viper, I can set the beam with a...

Hey guys... In this great forum there are more and more users, but we are all boys... It's possible that in the world there isn't any girl interested to lasers? Any girlfriend, any wife... Any woman. When I had a girlfriend, sometimes I speak with her of lasers and she appeared interested. We...

Hi to all!!! :) I have found a book in pdf called: Solid state laser engineering. Is contain some information about DPSS lasers in too much waveleight. If any "scientist" is interested PM me or e-mail me, I can send it by mail, it's 10,5 MB, or I can upload it in another places... I have attach...

Hi to all! I have made a bly-ray handheld laser looks like "Pocket pal" model of Jayrob. I have Used a 803 diode and a FlexDrive. I have regulated the pot to the maxium value, (in low range) then I think to give it 110 mA. But I have measure the output power by my Coherent Lasercheck, and it say...

Hi to all! I search a pen sized case for a laser pointer such as Viper laser... I have asked at DragonLaser, but they have told me that haven't any empty shell to sell me. I don't want to spend a big amount of money. Then I ask here to all ;D There is anyone that has to sell a shell of a Viper...

Hi to all!!! :) I have made with Lego Technic a laser engraving machine. Is simply a two axis (X,Y) movement machine controlled by Lego Technic keyboard. I have add my 160mW 808nm laser module, and I have hooked to its input the output cable of one output (for lego motors at 9V) of the...

Hi to all! I have bought two IR diodes from stonetek, and I have made a little lab style laser module with one of these. I run the diode at 280 mA (200 mW I think), because I have saw it in the datasheet. There is anyone that has tested this diode at higher current? Anyone has made a handheld...

Hi to all!!! This is my new DIY laser pointer, made by a 4 x AAA powered dorcy and a Sony SLD1239JL diode. I have set the LM317 based driver circuit at 200 mW of output, and I have used an Aixiz glass lens instead the acrilyc. I have made by turning machine the heatsink (the head of the dorcy)...

Hi to all!!! :) I want to buy a good blu-ray diode (one or two), and I think that the PHR-803T is the better. I know that this diode can be found in some XboX360 HD-DVD units and I have seen that this units have a low cost on eBay. There is any way to know the diode in the optical unit first...

Hi to all. I have a 60 watt CO2 laser at 10600 nm, and I want collimate the beam in a straight line, because  the burn power go down if I burn over 2 meters, the beam is most large. -There is anyone that know the real beam divergence of this type of laser? -There is anyone that has already do...

Hi to all. I have found an old Philips cd burner ;D, and I have put the laser diode in a Aixiz case. -I have used the driver circuit that is in the Aixiz module (650 nm, 5mW), is good choice? I have saw that if I focus the lens on a point, the laser burn the electrical tape, but slowly. -There...

Hi to all. There is someone that know how the laser power meters work? There are a thermometers? And there is any way to make it myself? There is another way to measure the power of a laser? Thanks

Hi to all. My friend has a hd-dvd unit of the xbox 360, he has broked it and he has give to me it. There is someone that know the power in mw of the BR diode in hd-dvd of the Xbox 360? I want make a driver circuit for this diode. Thanks

Hi. I sell a Sony PSP. The consolle hasn't any scratches and appears as new. I have buyed the PSP last summer, but I don't use it never. -The PSP has two memory stick, one of 2 gb (perfect for music and videos) and other of 32 mb. -There is the hearphone with remore control for the music and...