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I have a 8079 that is surplus to my needs. Has one blem on the cathode 0.5 mm in diameter just off center. British MOD surplus has been setting in my parts draw for years. Brits pulled them from tank vision periscopes and then placed them in controlled long term storage for spares, then...

FOR Sale: Brand new never installed red yellow blue OC for 643 or 43 series lasers. 55$ + shipping method of your choice, for one piece, 4 available. Ion Beam Sputtered Superpolished optic made by REO. This is a "kill green" optic for biomedical use, and produces a beautiful white on a...

I found the attached paper on the web... By accident . So ~ 469 and 471 are also available with enough pump power, tuning, and the right doubling crystal, plus an intracavity etalon for tuning. If you have a spectrometer with enough resolution, you may see faint traces of these lines in a 472...

Note the attached RCA internal magazine is 1963ish. The Laser was invented about two years earlier. I get question after question on Solid State Laser Crystal growth.. This publication has a pretty good explanation of why it it is difficult and expensive. What they do not mention is the time...

Years ago it was done in the IR with very high gain dyes and very tiny outputs and far red or IR diode pumping. For years I've been explaining why this is very difficult in the visible, needing a flowing jet, 200 nanosecond transfer time, quenching, spot size from the diode, triplet state...

I often see posts where forum members say "They (insert government agency here) do not have jurisdiction over me/you/us". Ever wonder what happens when a Federal Agency decides to explore where and when it's jurisdiction begins and ends? This is for drones, not lasers, but you could see what...

Want something a little more professional then a home made absorber?: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=11777 This post brought to you by a laser professional who cringes at some of the home made LPMs he has seen. Granted many hobbyist Peltier based systems are well...

In what is a highly unusual move for the Agency, CDRH sent the following link via email to every Varienced Laser Show User in the USA A friend forwarded me the email.. Here is the gist of the letter in a web link...

So it begins........ An injured pilot shows up at the right hospital with a sophisticated retinal scanner... Now the community has to deal with documented evidence of retinal damage in flight... The @ sign in laser is because the pilot forum I copied this from bans the use of "laser"...

New One... Nominal Ocular Dazzle Distance.... Much different then Nominal Ocular Hazard Distance.. Much harder to calculate..................... Discuss.... Steve

I'm helping a young gentleman right now via email. He got up close and personal with the scattered IR light from a DPSS pump diode. As far as he can remember, he held the laser chassis up to his face with the lid off to examine where the pump beam was landing. A few days later, he...

Form is FDA 2877 LINK IS http://www.fda.gov/downloads/AboutFDA/ReportsManualsForms/Forms/UCM080778.pdf Link Current as of 22 SEPT 2014 Also is attached. Note this does not let you do whatever you want. Nor does it allow import of a illegal, OEM, or un-approved item without restrictions...

Copied from my Thread on That Other Forum..... Illumination Supply in connection with RIYA Lasers LTD offered me a Sample of their New Product for review. I usually don't do reviews, but this product, in my opinion, rated a exception. Disclaimer: I have no connection to the product other...

Quote: Incident: Sun Country B737 near Spokane on Sep 5th 2013, smell of smoke as result of passenger laser burning holes By Simon Hradecky, created Friday, Sep 6th 2013 17:36Z, last updated Saturday, Sep 7th 2013 17:24Z A Sun Country Airlines Boeing 737-700, registration N716SY performing...

I'm at my friend Bruce's warehouse for a week. If your looking for medical surplus lasers or parts, drop me a PM here or on PL. I have 66 lasers and parts to go through, sell, or scrap. Plus plasma tubes. This is not a fire sale, but if you want a HGM 5, a HGM 8, HGM 20, or Lexel 85 or 88 now...

I need a reliable US based source of 18650s that fit in a spider 3 battery case, for testing purposes. Would not like some half assed battery from tim-buk-tu or a "quality Asian Vendor" Need 2 batteries and a charger. No, No, No I did not buy a Spider. I'm helping a researcher who did. Dont...

Make Sticky please. A common neon lamp from a hardware store or "Radio Shack" in the US, will get you the following ionic lines: l nm Color 540.1 green 585.2 yellow 588.2 yellow 603.0 orange 607.4 orange 616.4 orange 621.7 red-orange 626.6 red-orange 633.4 red 638.3 red...

Obama Signs Bill: from the laser light show mailing list: Yesterday, U.S. President Barack Obama signed a bill which includes a provision making it a federal crime to aim a laser pointer at an aircraft, or at the flight path of an aircraft in U.S. airspace. The language in H.R. 658's Section...

I have 4 Siemans LG7641 series tubes for sale, new old stock, NOS. Each has been fired up on my bench for 20 minutes, and power is 1 mW +/- 2.5% , usually higher. Asking 32$ and 7$ shipping each,in the US (Priority Mail, fixed rate) These are the raw glass tube, not a head. They have never...

saoirse_2010: Enjoy, the mirrors are for arrays of Xenon arc lamps. Note the Really Good engineering. Steve