Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Scientists Devise Brighter LEDs via Nano-imprint Lithography
Daily Tech ^ | January 1, 2008 | Wolfgang Hansson

Posted on 01/01/2008 5:08:49 PM PST by PeaceBeWithYou

click here to read article


Navigation: use the links below to view more comments.
first previous 1-2021-40 last
Comment #21 Removed by Moderator

To: null and void

I just purchased a new GE Profile French Door refrigerator that uses LEDs to illuminate the inside. It looked great in the store. I hope I like it as much when it is delivered.


22 posted on 01/01/2008 6:07:02 PM PST by ProtectOurFreedom
[ Post Reply | Private Reply | To 16 | View Replies]

To: null and void
I still use my TI-59 with magnetic strips every day in the office on it’s printer stand, I love it.
23 posted on 01/01/2008 6:37:19 PM PST by JAKraig (Joseph Kraig)
[ Post Reply | Private Reply | To 17 | View Replies]

To: ItisaReligionofPeace
LED flashlights are cool. They get addictive though. If you want to avoid the LED compulsion, stay away from Candle Power Forum / LED Flashlights
24 posted on 01/01/2008 6:40:14 PM PST by Blue Highway (The only cure for RINOvirus - Fred Thompson)
[ Post Reply | Private Reply | To 7 | View Replies]

To: Blue Highway
My favorite thread from that forum:

Very sore eye after blasting myself with an l2d (Multi-page thread 1 2)

25 posted on 01/01/2008 7:37:49 PM PST by raybbr (You think it's bad now - wait till the anchor babies start to vote!)
[ Post Reply | Private Reply | To 24 | View Replies]

To: Hyzenthlay

ping


26 posted on 01/01/2008 8:06:08 PM PST by metmom (Welfare was never meant to be a career choice.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: null and void
I'm still using an HP-45 calculator I bought in '73...

Sigh. Mine was lost in '77. Still using a solar-powered calculator bought in '85 though.

27 posted on 01/01/2008 8:33:06 PM PST by sionnsar (trad-anglican.faithweb.com |Iran Azadi| 5yst3m 0wn3d - it's N0t Y0ur5 (SONY) | UN: Useless Nations)
[ Post Reply | Private Reply | To 17 | View Replies]

To: raybbr

I know a lot about that place, I was there years ago when we were all fledgling dedicated tinkerers with the newest stuff like the Luxeon emitter, I myself am the owner/designer behind a company called Alaska Illuminations, I sold some modified Brinkman LED converted flashlights on the web and locally here in Alaska. Needless to say I found wintertime in Alaska a fertile ground for light tools during our long dark winter months. For awhile it was anybodies game on design, efficiency and the “cool” factor but I was dismayed at the encroaching aspects of people from overseas trolling for ideas and designs especially from China so even though I lurk every day there I rarely post anymore.
I have never quit my LED work though and I get people on a daily basis scratching their heads while their jaw drops especially at the dealership when I occasionally take my 2002 Silverado dually in for work that all my lights on it are LED, and not just cheap 5mm types but mostly SMD, Cree and even some leftover Luxeons I bought by the hundreds years ago. Technology wise the lighting is possibly 10 years ahead of what you may see on a new truck, like maybe a 2012 model could have, I’m talking about LEDs that are brighter than the original bulbs, have better color and used creatively like the strip lights under my tailgate that are progressive turn signals, they are as bright as those LED advertising signs you see, actually it used to be part of several that I used. Or like the video camera in the front grill that transmit to a program and gives an image on the tailgate, or the brake lights that have red lasers with lenses to focus out the beams at eye level of the vehicle behind me at a certain close in range.I do not share my ideas nor do I make anything for sale, I only do it for myself, I know thats selfish but its better than having the Chinese make it dirt cheap and selling it to everybody here in the US, I enjoy the uniqueness of having something that looks like a Hollywood special effects vehicle, and I mean it really draws attention.


28 posted on 01/02/2008 12:50:47 AM PST by Eye of Unk
[ Post Reply | Private Reply | To 25 | View Replies]

To: MrEdd; RedStateRocker; Dementon; eraser2005; Calpernia; DTogo; Maelstrom; Yehuda; babble-on; ...
Renewable Energy Ping

Please Freep Mail me if you'd like on/off

29 posted on 01/02/2008 5:30:16 AM PST by Uncledave
[ Post Reply | Private Reply | To 3 | View Replies]

To: raybbr

I wounded a deer mid afternoon. We were tracking the blood trail as it was running a little, then stopping. It got dark while we were on the trail. I tried using a LED flashlight to track the wounded deer. The LED light would not show up the blood trail compared to the conventional flashlight that would show the blood trail clearly so we could continue tracking.

The LED light is great. But I don’t like the color band and I believe the LED light changes the light spectrum unnaturally. At least for my eyes, LED lighting is unsettling and not for every instance.


30 posted on 01/02/2008 7:35:46 AM PST by o_zarkman44 (No Bull in 08!)
[ Post Reply | Private Reply | To 2 | View Replies]

To: o_zarkman44
I use them at work and they are the best. I work on old equipment and the bright white light really helps.

When I am out with the dogs at night, they illuminate a lot but do seem to wash out colors. I don't have to track animal blood but I can see where it would not work.

31 posted on 01/02/2008 8:00:57 AM PST by raybbr (You think it's bad now - wait till the anchor babies start to vote!)
[ Post Reply | Private Reply | To 30 | View Replies]

To: TOneocon

Thanks at least for pinging me. BMFLR.


32 posted on 01/02/2008 8:59:52 AM PST by Kevmo (We should withdraw from Iraq — via Tehran. And Duncan Hunter is just the man to get that job done.)
[ Post Reply | Private Reply | To 6 | View Replies]

To: o_zarkman44
The LED light is great. But I don’t like the color band and I believe the LED light changes the light spectrum unnaturally.

There are now white LEDs that give you a better selection of color. The first generation was heavily tilted towards a blue over all light. Now they have much 'warmer' colors available. I think they would show blood trails better, as they have more red and orange in their spectrum.

33 posted on 01/02/2008 10:22:33 AM PST by null and void (Don't taunt the tiger...)
[ Post Reply | Private Reply | To 30 | View Replies]

To: null and void

Now that must have been a spendy item back in ‘73.


34 posted on 01/02/2008 3:02:14 PM PST by El Sordo
[ Post Reply | Private Reply | To 17 | View Replies]

To: El Sordo

$395.00, IIRC.

Or, in other terms, everything I earned that entire summer.


35 posted on 01/02/2008 3:06:22 PM PST by null and void (To anger a conservative, lie to him. To anger a liberal, tell him the truth. - M203M4)
[ Post Reply | Private Reply | To 34 | View Replies]

To: Blue Highway

I’m kind of a geek myself, but geezus, there are some real geeks there! I need to see a LED flashlight in action before I get too worked up. Can you recommend a fairly inexpensive one that will show me what the fuss is about? Thinking of a cheaper workhorse that isn’t top of line, but good representative. Like most things, I doubt there is that much diff between this one and the top of line one (for common use anyway).


36 posted on 01/03/2008 4:34:20 PM PST by ItisaReligionofPeace
[ Post Reply | Private Reply | To 24 | View Replies]

To: null and void

I didn’t think any of those steam-powered models were still around!


37 posted on 01/03/2008 4:45:56 PM PST by arthurus (Better to fight them OVER THERE than to have to fight them OVER HERE!)
[ Post Reply | Private Reply | To 17 | View Replies]

To: ItisaReligionofPeace
I go for the cheap lights myself. I think the most expensive LED flashlight I own is a CMG Infinity around $30 back when I bought it. That's pretty much entry level for LED geeks.

I go for a light with plenty of flood, and generally a dimmer light that has a long runtime. That's why the early CMG Infinities were ideal for me. I have a Maglite LED and it's ok but overpriced for what it is.

I guess one I would recommend for cheap is the newer (not as good as the older CMG's) Gerber Infinity Ultra. Around $15 for a nice bright light and about 100 hour runtime on 1 AA NIMH rechargeable battery.

http://www.gpknives.com/item/gerber-infinity-ultra-task-light-black-body.html

38 posted on 01/03/2008 4:46:58 PM PST by Blue Highway (The only cure for RINOvirus - Fred Thompson)
[ Post Reply | Private Reply | To 36 | View Replies]

To: arthurus

Some are. I’m using mine.

It’s getting a little old, sometimes it needs to be kick started to get the top row of LEDs to light...


39 posted on 01/03/2008 4:52:15 PM PST by null and void (To anger a conservative, lie to him. To anger a liberal, tell him the truth. - M203M4)
[ Post Reply | Private Reply | To 37 | View Replies]

To: Las Vegas Dave

LEDs, OLEDs mentioned. :’)


40 posted on 01/04/2008 10:15:19 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/____________________Profile updated Sunday, December 30, 2007)
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-40 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson