Laser projector over 2.2km

Things · 12-31-2011, 10:52 AM

So, being new years eve and all, I took my laser projector outside and got a few beamshots. There is a mountain roughly 2.2km away I use as my beamstop:

So, I set up a wireless router, which I had VNC running on my eeepc, and a VNC viewer on my phone. This was so I could turn the laser off while I wasn't taking pics, didn't want to attract too much attention to myself!

Anyway, no fog and a reasonably clear night, though humidity is around 50%.

Can actually see the dot on the mountain on this one:

THought I'd take the opportunity to check my far field alignment:

Hmmm, not bad over 2.2km I think! Also appears my dual 640nm red module has split again slightly, ahh well, easy to readjust!

Just goes to show, despite the horrible beam specs of the 445nm lasers, combined with 400mW 532 and 300mW 640nm the dot sizes match up pretty much perfectly! Blue overlaps a tiny bit close to the projector, but barely.

Cheers,
Dan

Elektrotechniker · 12-31-2011, 01:02 PM

Ya gonna do a laser show for new year?

Things · 12-31-2011, 01:26 PM

Yea, I'll rewind time by about 2 minutes

Merry New Birthday!

borgqueenx · 12-31-2011, 02:31 PM

Wow shiz, this is done by 1w of power?
How much is your 445nm?
Im glad you posted this

Now i know that i can make alot of beautiful beams tonight

Things · 12-31-2011, 04:26 PM

The 445nm laser is 1W, and was running at full power in the pics. 400mW 543 and 300mW 640 in there also, but I measured about 1.4W total OTF (Under modulation).

Elektrotechniker · 01-01-2012, 03:17 AM

What laser is the 543?

ARGLaser · 01-01-2012, 03:40 AM

Wow! That alignment is incredible for 2.2km!

Great shots, you always take the best projector pictures!

LaserCo · 01-01-2012, 10:59 AM

These are some great shots, and its very interesting seeing it over that map
I think I see palm trees, must be nice there.

Things · 01-01-2012, 12:08 PM

Yep, plenty of palm trees around here.

It's really quite unpleasant at the moment, hitting days of around 36C, and the high humidity is bring the apparent temp up to around 49C. Aircon is a must. Beautiful during winter though. Min winter temps are around 12C and around 19-24C during the day.

Elektrotechniker · 01-01-2012, 01:39 PM

Quote:

Originally Posted by Things

Yep, plenty of palm trees around here.

It's really quite unpleasant at the moment, hitting days of around 36C, and the high humidity is bring the apparent temp up to around 49C. Aircon is a must. Beautiful during winter though. Min winter temps are around 12C and around 19-24C during the day.

Dressing LIKE A BOSS during winter

Is the 543nm laser the laserwave one?

Things · 01-01-2012, 01:44 PM

Aahahahaha oops, I meant 532nm!

But yes, it's a 400mW laser-wave module.

12-31-2011, 10:52 AM	#1
Things Super Moderator Join Date: May 2007 Location: Cairns, Australia Posts: 6,663 Rep Power: 473	Laser projector over 2.2km So, being new years eve and all, I took my laser projector outside and got a few beamshots. There is a mountain roughly 2.2km away I use as my beamstop: So, I set up a wireless router, which I had VNC running on my eeepc, and a VNC viewer on my phone. This was so I could turn the laser off while I wasn't taking pics, didn't want to attract too much attention to myself! Anyway, no fog and a reasonably clear night, though humidity is around 50%. Can actually see the dot on the mountain on this one: THought I'd take the opportunity to check my far field alignment: Hmmm, not bad over 2.2km I think! Also appears my dual 640nm red module has split again slightly, ahh well, easy to readjust! Just goes to show, despite the horrible beam specs of the 445nm lasers, combined with 400mW 532 and 300mW 640nm the dot sizes match up pretty much perfectly! Blue overlaps a tiny bit close to the projector, but barely. Cheers, Dan __________________ My YouTube Channel!

12-31-2011, 01:02 PM	#2
Elektrotechniker Class 3B Laser Join Date: Nov 2008 Posts: 3,910 Rep Power: 164	Re: Laser projector over 2.2km Ya gonna do a laser show for new year?

12-31-2011, 01:26 PM	#3
Things Super Moderator Join Date: May 2007 Location: Cairns, Australia Posts: 6,663 Rep Power: 473	Re: Laser projector over 2.2km Yea, I'll rewind time by about 2 minutes Merry New Birthday! __________________ My YouTube Channel!

12-31-2011, 02:31 PM	#4
borgqueenx Class 3R Laser Join Date: Jun 2008 Location: Netherlands Posts: 1,547 Rep Power: 22	Re: Laser projector over 2.2km Wow shiz, this is done by 1w of power? How much is your 445nm? Im glad you posted this Now i know that i can make alot of beautiful beams tonight __________________ My Photonic Collection: 500mW Jetlaser Pointer(Peak 667mW) Misc. Pointers. 2.5W RGB Laser Projector self build. Fenix TK70 monster LED flashlight.

12-31-2011, 04:26 PM	#5
Things Super Moderator Join Date: May 2007 Location: Cairns, Australia Posts: 6,663 Rep Power: 473	Re: Laser projector over 2.2km The 445nm laser is 1W, and was running at full power in the pics. 400mW 543 and 300mW 640 in there also, but I measured about 1.4W total OTF (Under modulation). __________________ My YouTube Channel!

01-01-2012, 03:17 AM	#6
Elektrotechniker Class 3B Laser Join Date: Nov 2008 Posts: 3,910 Rep Power: 164	Re: Laser projector over 2.2km What laser is the 543?

01-01-2012, 03:40 AM	#7
ARGLaser Class 3B Laser Join Date: Feb 2011 Location: British Columbia Canada Posts: 3,956 Rep Power: 232	Re: Laser projector over 2.2km Wow! That alignment is incredible for 2.2km! Great shots, you always take the best projector pictures! __________________ Multimedia •Reke-500 RGB •DPSS Hillside Guides •How to Combine Lasers Builds •4.4W 445nm dual diode laser •6W Triple diode laser Laser Power Meters •Laser Power Meter data logging add on •ARGMeter - Open Source Laser Power Meter Other •My Website •My YouTube Channel Away from the forum from the 19th to 26th on a portaging trip.

01-01-2012, 10:59 AM	#8
LaserCo Class 2 Laser Join Date: Sep 2007 Location: Minneapolis/St. Paul, Minnesota - United States of America Posts: 340 Rep Power: 24	Re: Laser projector over 2.2km These are some great shots, and its very interesting seeing it over that map I think I see palm trees, must be nice there. Last edited by LaserCo; 01-01-2012 at 10:59 AM.

01-01-2012, 12:08 PM	#9
Things Super Moderator Join Date: May 2007 Location: Cairns, Australia Posts: 6,663 Rep Power: 473	Re: Laser projector over 2.2km Yep, plenty of palm trees around here. It's really quite unpleasant at the moment, hitting days of around 36C, and the high humidity is bring the apparent temp up to around 49C. Aircon is a must. Beautiful during winter though. Min winter temps are around 12C and around 19-24C during the day. __________________ My YouTube Channel!

01-01-2012, 01:44 PM	#11
Things Super Moderator Join Date: May 2007 Location: Cairns, Australia Posts: 6,663 Rep Power: 473	Re: Laser projector over 2.2km Aahahahaha oops, I meant 532nm! But yes, it's a 400mW laser-wave module. __________________ My YouTube Channel!

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