Search results

You cant pin it down because both the Z136 and EN207/208 specifications are for sale to those who wish to purchase them. You can find bits here and there but you will not find the complete specifications without purchasing them. For EN207 they take sample of the filter and subject them at 10cm...

I think the biggest issue is the marketing. A very public marketing campaign for a company already on the FDA watch list will see the seizure of many of these. The FDA will be all ears for a commercially available class 4 laser pointer with absolutely no required safety systems for class 4...

He's drunk, drunk with POWER I say. :crackup: I don't know Dave personally but I've read many, many of his posts. He's edgy, witty, very knowledgeable, can be cynical, and when pushed, brutally honest. He can administer a verbal beat down like no other. :bowdown: What may appear to be change...

729 ft. I used to live at 5280ft, exactly 1 mile above sea level. I miss the mountains.

Customs? There might be a new requirement for inspection. My checked luggage had a couple of LED flashlights on a flight last week. I got home and unpacked, the flashlights had been opened and placed in a ziplock bag in my luggage. The batteries were gone. Makes me wonder.

Here is a link to the Israeli Ministry of Defense selling the Hughes Ruby Laser Range Finder from an M60 MBT. They might be able to ship anywhere in Europe. The laser is about halfway down the page. It probably has the PFN and the opto-mechanical q-switch with it. Land Forces Surplus

I stop dead cold when I cannot contact the vendor via telephone. Looking at the contact us page I found: Store Name Address Country Phone Contact Us Sample Text ... This section of text is from the Define Pages Editor located under Tools in the Admin. To remove this section of the text...

> $12,000 USD. Maybe a group buy? :crackup:

If you are in engineering physics you pretty much have no choice but to present the physics of laser light generation. Pick your favorite type of laser, solid state, gas, diode, etc. and present how coherent light is generated for that particular type of laser. Laser engineers and physicists...

I regularly use a shooters spotting scope as a beam expander. The lenses are AR coated across the visible spectrum and use pretty good quality lenses. Spotting scopes are a reasonable size and feature mounts for things like tripods making it easy to fix the scope in the beam path. Since they...

I have to laugh a bit at that comment as after looking at the goggles, I think you have to be in a Tim Burton/Johnny Depp movie for those to be really cool. Most laser protective eyewear places the wearer clearly in the realm of geek which is why photos are not allowed in the lab. There are a...

You can use cylindrical lenses to bring the beam into a more round shape then use anamorphic pairs or a beam expander to expand the beam a bit to control divergence then finally into a focusing optic. There are also optics designed for diode bars called light ducts. These are used to pump the...

Yes, that is for an 18650 lithium ion, non-protected. You don't need the protection circuit board in the battery since you are using them as single cells. Because the protected batteries are a bit longer you could end up stripping the threads on the body if you try to tighten the cap too much...

It's a continuity test. Open, the laser doesn't work. Closed, the laser works. Connect a switch to an audio plug. Set the switch to open, insert key, turn on laser, then close the switch, the laser will turn on, open switch, the laser will turn off. I don't think the driver is built with any...

It's an interlock. It's a requirement for Class IIIb and IV laser systems. The plug that comes with it is a shorting plug to override the interlock. It is designed to be used as a remote shutoff for a predetermined event. Most of the time a laser interlock is wired to the case and to an entry...

There is a Murphy's Law of Combat passage that states: If it's stupid but works, it's not stupid. Kudos for thinking out of the box...err in the box...something. But consider the cost of all the goggles you would need to buy to cover the visible and IR spectrum. The only drawback is taking a...

I would doubt the word of Daniel Rigano (the author) as his expertise is certainly not in lasers. His bio says he's an expert at search engine optimization. When an author uses the word "coz" instead of "because" in a technical description I tend to question validity of the information. Anyone...

Four neutral and four negative feedback in a single month does not bode well for his business acumen. The whole USA thing is purely marketing. If any one of you purchased a laser from China, Japan, or where ever, sold it, and packaged it for shipping at your house somewhere in the states you can...

I've blown up a lot of stuff in my day. As a former soldier who worked with explosives, in my opinion it's BS. C4 has a detonation velocity in excess of 26000 ft/s and cannot create the same effect with the same amount. C'mon there's nothing special about a binary explosive. Grab a bag of...

Speaking of quantum tunneling, Michio Kaku, in his book Physics of the Impossible, discusses teleportation from science fiction as well as from a real quantum level. Because of the Schrodinger wave equation an electron from your body can realistically be anywhere in the universe, albeit the...