Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

Cyparagon

Cyparagon

0
Joined
Sep 12, 2007
Messages
9,399
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

diachi said:
To be fair, at that power they don't really need it. Still, would be nice.
Click to expand...

A 300kW engine needs a fan. A 1000W magnetron needs a fan. A 120W CPU needs a fan. Does a 0.06W diode with a big heat sink need a fan?

At less than a watt of heat, that heat sink is plenty to keep the diode cool. Adding a fan would have a negligible impact on the temperature rise, and just make noise. If this did come with a fan, I would remove it immediately :shhh:

Should laptop chargers come with fans? Should home stereos come with fans? How about TVs? Adding a fan to things might in some cases lengthen the life of the product, sure. (or it could clog the device with cat hair?) Hell, the same could be said for TEC cooling all your home appliances. But the added energy consumption and noise just isn't worth it to most consumers. Myself included. :D
 





paul1598419

paul1598419

0
Joined
Sep 20, 2013
Messages
17,388
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

You know the drivers on these have a plug for a 12 volt fan. Once you installed that you could increase the current to the diode and get more than 60 mW out of it. Hell, I have several of those fans in my stock with the plug already on the end. Of course the polarity might not be the same, but that's no problem.

I don't really need one as I have a pointer with that diode and another bare in my stock.
 
Last edited:
Skittles

Skittles

0
Joined
Nov 6, 2017
Messages
292
Points
28
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

With 80k lumens those flashlights are lasers on their own. :crackup:
 
paul1598419

paul1598419

0
Joined
Sep 20, 2013
Messages
17,388
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

They used to use spot lights in Europe during WW II for spotting aircraft. White light can be focused to an extent for use at longer ranges than an unfocused light. Even though these flashlights are new, the technology is not really new. The source of the light is newish, but high lumen focused light certainly isn't.
 
RedCowboy

RedCowboy

0
Joined
Jul 10, 2015
Messages
9,882
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Yep great big rear reflector carbon arc spot lamps on an articulated base, I remember looking at them when they were brought out to events when I was young to draw a crowd, the carbon rod would screw feed down the center and smoke would steam out from the thing as it ran, there was a 4 or 6 cyl piston engine generator running to power the thing and they were set in a sweep pattern, now they are probably LED, I have seen a 4 head electric lamp type in person, but not a LED although I bet it's ........hell now I have to look it up

280790361136-4ef03307daf73.JPG


searchlight_6751.jpg


searchlight.jpg



---EDIT---

I have seen this kind live.

slide9.png


Maybe the large frame LED searchlight is not here just yet, al least not in a single emitter, but this looks interesting, now that's some throw in a tight beam.

Appears to be Xenon 12 million candle power >>> http://argoasecurity.com/index.php?route=product/product&path=21&product_id=176

AA78101_3.gif
 
Last edited:
Alaskan

Alaskan

0
Joined
Jan 29, 2014
Messages
12,031
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

holy cow, that 12 million looks like a laser beam.
 
paul1598419

paul1598419

0
Joined
Sep 20, 2013
Messages
17,388
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Imagine using that as a pump source for a solid state laser! :eek:
 
Alaskan

Alaskan

0
Joined
Jan 29, 2014
Messages
12,031
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

35 watts, hmmm.... hot though! I found the price on a web site, 269.00 USD. Cheap for that, I think..... maybe indicative of quality? Maybe that one a knock off, not sure.
 
RedCowboy

RedCowboy

0
Joined
Jul 10, 2015
Messages
9,882
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

This looks like that 12 million CP light. I like the LED HH searchlights, that giga thrower looks like fun, there's 2 sales ads for a new gigathrower on ebay ATM, if they were 200 bucks I would buy one, by next year I bet we can get that and better for 200 or so, maybe less as the new ones will likely be twice as bright.

https://www.ebay.com/itm/Peak-Beam-...372577?hash=item441f3572a1:g:U~EAAOSw9V5bCvm3

https://www.ebay.com/itm/Lumintop-B...271973?hash=item33ea99ad25:g:Z9QAAOSwdjha-nL6

https://www.ebay.com/itm/Lumintop-B...897897?hash=item33e925c1e9:g:vsYAAOSwMTRa5Y4h

GIGA THROWER VIDEO >>> https://www.youtube.com/watch?v=LStmsIyGldA&feature=youtu.be

Thread >>> https://laserpointerforums.com/f66/just-had-102756.html
 
Last edited:
Alaskan

Alaskan

0
Joined
Jan 29, 2014
Messages
12,031
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

That's still cheap, I don't think they are the same one, lower quality with the same output though. When I see those big reflector lens and the hole in the back for the power to the tube, I start thinking about mounting a rod in a reflector like that with a laser diode on the end pointed into the reflector to make a huge low divergence beam, except the reflector is doubtlessly designed for a different light source pattern.
 
RedCowboy

RedCowboy

0
Joined
Jul 10, 2015
Messages
9,882
Points
113
Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

You can focus a laser with a reflector/mirror, but as our MM diodes are not Gaussian, rather they diverge unevenly it would be interesting to see the correct mirror, maybe an oval shaped reflector ?
 
Last edited:
You must log in or register to reply here.




Top