Led exposure unit?

[ebscreen]

THREADJACK


You can make a badass nightvision camera using a cheapo webcam and some infrared LED's.
(like the ones in your TV remote)


/THREDJACK

[sweetts]

THREADJACK


You can make a badass nightvision camera using a cheapo webcam and some infrared LED's.
(like the ones in your TV remote)


/THREDJACK

that would be cool


RT Screen Designs
www.rtscreendesigns.com

[ebscreen]

It cost like $20, you can literally see things in the dark (though the camera) and the "light"
is not visible to the human eye.

[sweetts]

Pretty cool


RT Screen Designs
www.rtscreendesigns.com

[JBLUE]

It cost like $20, you can literally see things in the dark (though the camera) and the "light"
is not visible to the human eye.

Link?

[Sbrem]

just put "webcam infrared LED" into google, there's a ton there.

Steve

[LDTRONIX]

I don't know how to tell you about a great led exposure unit(within the rules), that can expose a screen in 10 sec with perfect half tones.......
I believe a IM would not break any rules.

I am the guy that has been banned (from other sites) for talking about this unit. 

[blue moon]

I don't know how to tell you about a great led exposure unit(within the rules), that can expose a screen in 10 sec with perfect half tones.......
I believe a IM would not break any rules.

I am the guy that has been banned (from other sites) for talking about this unit.

post away! As long as you are respectful to others you are more than welcome to post the link and promote your product (as long as that is not your only contribution to the site!). You can also post something in the announcements section explaining the product and in intro section to tell us more about yourself.

pierre

[LDTRONIX]

1st
I want to say this is the only forum that would allow me to post about this unit..



http://www.LDTronix.com


I can't post on other forums but you can thanks again TSB is the only forum for me....
SHARE THE KNOWLEDGE

[mk162]

Seems like a nice unit, are you working on more of a single point exposure unit for the near future?

[LDTRONIX]

That’s a great question!
This unit was designed to give better results then any single point light source.
The HIGH POWER LEDS used in the BABY JOE 2000 output a light that is highly focused,even, and directional.
This is a game changer! 
 All other light sources output light in all directions; however LEDS do not have the same issues.
LEDS are a directional light source, all the other lights need a reflector to get the light going where you want it to go.

[inkman996]

That’s a great question!
This unit was designed to give better results then any single point light source.
The HIGH POWER LEDS used in the BABY JOE 2000 output a light that is highly focused,even, and directional.
This is a game changer! 
 All other light sources output light in all directions; however LEDS do not have the same issues.
LEDS are a directional light source, all the other lights need a reflector to get the light going where you want it to go.

Does that mean you would need one LED under every square inch of exposable area?

[Gilligan]

That’s a great question!
This unit was designed to give better results then any single point light source.
The HIGH POWER LEDS used in the BABY JOE 2000 output a light that is highly focused,even, and directional.
This is a game changer! 
 All other light sources output light in all directions; however LEDS do not have the same issues.
LEDS are a directional light source, all the other lights need a reflector to get the light going where you want it to go.

Does that mean you would need one LED under every square inch of exposable area?

Or better stated (in my opinion) is how many LED's do you have per square inch and how much overlap do each of these LED's provide?  Have you measured the amount of spill over from adjacent LED's?

[cvreeland]

I'd like to overexpose a 10% halftone on one of those & see if you got undercutting at the margins between bulbs. Looks like a good unit, though compared to florescent.

Do you guys have any of those out in the field yet? It'd be great to hear from some folks using them how it was working out down the stretch.

Back in The Day, (1980's) I used to control on-press dot gain with my fluo light table by purposely over-exposing the halftone screens that were printing too dark. Add a couple minutes exposure time, & it's like doing a curves adjustment in Photoshop.

[ScreenFoo]

Some interesting claims on there.  I would think the divergence on LED's would be better than many exposure lamp/reflectors.

I'm guessing the 'lightening bars' (sp?) are like the carriage on a flatbed scanner--use less LED's, scan one axis, use one tenth the LED's for ten times as long?