Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Experiments & Modifications



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 10-17-2011, 09:39 PM #1
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Project Nova Luxy

I spilled the beans a bit on this project over at PL, so I figured I would share my progress here as well. I've chatted casually with a few people on LPF about this project, but I thought I would share it openly now.

Project Nova Luxy (Latin for "New Light") is my attempt to bring life back to barren DLP projectors, by creating a workable LED-based replacement for missing LDs.

Surprisingly, I've actually had to invest a fair amount getting to this stage in my experimentation between various LED emitters I've tried, lens options, prototype PCBs, components from digikey, etc. I had hoped to recoup a bit by selling some sort of kit for DIY hobbiests to birth life back into their unused projectors. Of course, that's not quite in cards, since the project doesn't work
(at least not yet)

But I've made a decent amount of progress, and success may still be in the cards.

I've managed to completely lick the electronics. Replacing the LDs with high enough power LED emitters is (I believe) solved. Heat issues are (again, I believe) solved. Tricking the projector into thinking that each of the 4 LED emitter plates is a functional string of 6 LDs, again solved.

At this stage, what is not solved, is collimating the LED output into a focused enough output of light to create any meaningful BLUE/GREEN output. In my prototypes, I can successfully run the projectors with RED only output, and even with the BLUE emitter LEDs fully powered up, for an unlimited period of time. It's stable, you could watch a movie in RED etc.

Here's a quick demo video.
Project Nova Luxy - YouTube


It is what it is. Someone may have a brilliant LED collimation idea that will unlock the last hurdle. I can tell you that I've tried upwards of 20 lens options from surplus shed, and the best so far is to use a very short focal length coated glass lens on each LED emitter plate. That's what you see on each emitter in the video above. However, as mentioned, this isn't enough, and there nearly no actual BLUE/GREEN light in the projected output when the heatsink/LED assembly is running inside the projector.


__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 10-17-2011, 09:52 PM #2
532 with Envy's Avatar
Class 3R Laser
 
Join Date: Jun 2010
Location: Somewhere between Here and THere
Posts: 1,491
Rep Power: 576
532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute
532 with Envy 532 with Envy is offline
Class 3R Laser
532 with Envy's Avatar
 
Join Date: Jun 2010
Location: Somewhere between Here and THere
Posts: 1,491
Rep Power: 576
532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute
Default Re: Project Nova Luxy

Nice job working the electronics and fooling your projector into working again! That a fun experiment....if you can get the blue working completely and focused you could almost resell them as working projectors
__________________
_______________________________________________

337.1nm Home Built TEA Laser
HeNe lasers a'plenty.Plus that nice one in the avatar
594nm Melles Griot HeNe
594nm Trius Engineering HeNe
405nm handhelds (diy)
445nm handhelds (diy)
473nm B&W Tek lab style
488nm.40mW Multi-Line Argon Ion laser.....(with thanks to Dave)
515nm Argon Ion laser 40mW
532nm lab style 100mW+handhelds (diy)
543nm Melles Griot HeNe
674nm lab style..500mW
808nm 40W FAP diode array
Kimmon IK4123R-B Helium-Cadmium laser and matching power supply.(with great thanks to Event_Horizon!)(Non-working head...PM me if you have one or information)
532 with Envy is offline   Reply With Quote
Old 10-18-2011, 12:00 AM #3
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Project Nova Luxy

I guess you should change the project name though... "new light" would translate into "nova lux", and "new lights" into "nova lucis".

Replacing the LD's by another lightsource will probably prove difficult, they didnt opt for a source this expensive in the first place. Perhaps you'd get better results running on a reduced number of LD's. Removing half of them would tilt the color balance a bit, but probably not yielding an unusable projector.
Benm is online now   Reply With Quote
Old 10-18-2011, 12:18 AM #4
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Project Nova Luxy

Quote:
Originally Posted by Benm View Post
I guess you should change the project name though... "new light" would translate into "nova lux", and "new lights" into "nova lucis".

Replacing the LD's by another lightsource will probably prove difficult, they didnt opt for a source this expensive in the first place. Perhaps you'd get better results running on a reduced number of LD's. Removing half of them would tilt the color balance a bit, but probably not yielding an unusable projector.
I added the "y" because it sounded cooler

Actually, you can run these projectors with half of the LD's removed. In fact, you can get a fairly usable output. They've done that over at PL a bunch.

The challenge is, there are a ton of projectors around that have zero LDs in them, and it would be nice to see those not go to waste.

That said, I agree in principal that they would have gone LED in the first place, if it was really that easy.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)


Last edited by rhd; 10-18-2011 at 12:18 AM.
rhd is offline   Reply With Quote
Old 10-18-2011, 12:57 PM #5
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Project Nova Luxy

I suppose there could be some use for the projectors with the LD's removed. Perhaps it is possible to change the red led for a white one with a similar output pattern, making the projector black and white.
Benm is online now   Reply With Quote
Old 10-18-2011, 01:16 PM #6
bobhaha's Avatar
Class 3B Laser
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
bobhaha bobhaha is offline
Class 3B Laser
bobhaha's Avatar
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
Default Re: Project Nova Luxy

The problem is that you can not make a good green and blue at the same time, right?

What if you used some high powered UV LED's? At the same time as the blues. UV is what makes the phosphor glow the green colour.

Just a thought
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Check out my How to Build a Selectable Dummy Load Thread!
bobhaha is offline   Reply With Quote
Old 10-18-2011, 01:51 PM #7
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Project Nova Luxy

Quote:
Originally Posted by Benm View Post
I suppose there could be some use for the projectors with the LD's removed. Perhaps it is possible to change the red led for a white one with a similar output pattern, making the projector black and white.
This is a fantastic idea. I'm going to try my bypass circuitry, with the Phlatlight replaced with a similar WHITE LED. In theory, there will be 1/3rd the refresh rate. But I think that might actually be resolved by placing a beefy cap in parallel with the phlatlight (to smooth the pulsing, and cause the red to be powered up during all of the R, G, and B DLP cycles.

Quote:
Originally Posted by bobhaha View Post
The problem is that you can not make a good green and blue at the same time, right?

What if you used some high powered UV LED's? At the same time as the blues. UV is what makes the phosphor glow the green colour.

Just a thought
The issue with that is that high power UV LEDs are insanely expensive. Plus, even the BLUE is still problematic. It's still an issue of focus, not quantity of light output.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 10-18-2011, 02:52 PM #8
foulmist's Avatar
Class 3R Laser
 
Join Date: Mar 2011
Location: Smolyan, Bulgaria
Posts: 1,076
Rep Power: 107
foulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond repute
Send a message via Skype™ to foulmist
foulmist foulmist is offline
Class 3R Laser
foulmist's Avatar
 
Join Date: Mar 2011
Location: Smolyan, Bulgaria
Posts: 1,076
Rep Power: 107
foulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond repute
Send a message via Skype™ to foulmist
Default Re: Project Nova Luxy

ooooh goooooooooodie ...B & W would be awesome if it works alright...

it will give a retro touch to the projector which to me sounds pretty good...

.....
I kinda loved the b&w crt monitors back in the days I had one which I liked more then the vga

great project there RHD
foulmist is offline   Reply With Quote
Old 10-18-2011, 04:50 PM #9
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Project Nova Luxy

The CST-90 will work, thermistor compatible and all.

EDIT: It's not cheap though. $50 +
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)


Last edited by rhd; 10-18-2011 at 04:52 PM.
rhd is offline   Reply With Quote
Old 10-18-2011, 11:34 PM #10
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Project Nova Luxy

Perhaps it would be possible to modify the circuitry so the white led is always powered on, or at least during the time that normally has the green and blue cycle. This would give less ficker, but also the advantage that an RGB input signal would be rendered as decent black and white. It wouldn't have color weiging, but at least portions that are green, blue or cyan would be rendered to some degree.

As for the price: $50 + some circuitry would not be that bad to convert a mostly useless red-only projector shell into a functional b/w projector. It could be a 'fun' retro project, but also perfectly functional for displaying informational text in public spaces and such.
Benm is online now   Reply With Quote
Old 10-19-2011, 12:36 AM #11
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Project Nova Luxy

Quote:
Originally Posted by Benm View Post
Perhaps it would be possible to modify the circuitry so the white led is always powered on, or at least during the time that normally has the green and blue cycle. This would give less ficker, but also the advantage that an RGB input signal would be rendered as decent black and white. It wouldn't have color weiging, but at least portions that are green, blue or cyan would be rendered to some degree.

As for the price: $50 + some circuitry would not be that bad to convert a mostly useless red-only projector shell into a functional b/w projector. It could be a 'fun' retro project, but also perfectly functional for displaying informational text in public spaces and such.
EXACTLY. Taking only the red channel will not produce a true black and white image (well, it will, but it won't look like "normal" black and white)

I was thinking that a capacitor would be enough to smooth out the pulse on that LED. Think that would work? Something like this:
Digi-Key - 445-4827-ND (Manufacturer - FK11Y5V0J107Z)
Across the LED leads in parallel?
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 10-22-2011, 03:50 PM #12
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Project Nova Luxy

I doubt it. I guess the projector cycles through all the colors 24/25 times a second, giving you a grap of about 80 mS to fill between cycles. You can use a bunch of those caps to store the required amount of energy, but that would require a driver to keep a constant current flow.

I'm not really sure how the current source of the projector is wired though. It may be possible to route the power source for the lasers to the led too using diodes.

As for mixing colors to blank and white: If you do it properly, the colors are weighed (in the order of 60% green, 30% red and 10% blue) before adding them up. Just blindly adding them in a 1:1:1 ratio (what would happen if you put in a white led and ran it for all the color cycles) will result in a bit of an odd picture, but its still usable.

Its probably possible to correct for this error at the source (i.e. the computer driving the projector) so it wouldn't worry about it much.
Benm is online now   Reply With Quote
Old 10-22-2011, 07:43 PM #13
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Project Nova Luxy

If you ran white for all the colour cycles, I think you'd still be mixing the images meant for each colour in a 60/30/10 (or whatever was intended) ratio. The DLP chip cycles the image, it's not just the pulsing of the actual light sources. So the DLP chip will hold on to the image intended for green, for 60% of the time, etc etc etc.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 10-25-2011, 01:22 PM #14
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,428
Rep Power: 15904
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Project Nova Luxy

I'm not sure how the DLP is driven. It could do cycles of equal lenghts for every color, with the white balance simply resulting from the brighness of each color light source in the original projector.
Benm is online now   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 01:11 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC