Just wondering, because when they first came out they seemed to grab a lot of attention, but now nothing is being said about them. I remember a mod where somebody took a (thor?), removed the module, replaced it with a lamina array, and made a heatsink of pure copper, looked a lot like a large cylinder.
Why is there nothing lately on Lamina Arrays?
- Thread starter Mags
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Trashman
Flashlight Enthusiast
That CentraLED worklight that's been getting a good amount of attention uses a Lamina array, so, they are getting a little bit of notice.
It could be that the ones that put huge amounts of light reguire huge amounts of heat sinking and are just not that flashlight friendly (yet).
It could be that the ones that put huge amounts of light reguire huge amounts of heat sinking and are just not that flashlight friendly (yet).
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It might be because you can only squeeze 15-20 lumens/watt out of certain types of lamina arrays.Mags said:
(Source: http://www.laminaceramics.com/products/bl2000.aspx)
Most modern white LEDs pump out about 30 lumens/watt.
(Source: http://members.misty.com/don/lede.html)
Even a typical Luxeon will pump out ~30 lumens/watt at its max Vf and current:
(Source: http://www.luxeonstar.com/item.php?id=327&link_str=189::191&partno=LXHL-FW1C)
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idleprocess
Flashaholic
Lamina arrays are not so easy to collimate. They make great floodlights, but they're hardly point sources. Only the 4000 has narrow-beam optics.
Voltage requirements for some Lamina arrays are also somewhat high for portable usage - 11.3V for the 2000 & 3000. The voltage for the 4000 is rather high at 4.3V or 7.6V.
Voltage requirements for some Lamina arrays are also somewhat high for portable usage - 11.3V for the 2000 & 3000. The voltage for the 4000 is rather high at 4.3V or 7.6V.
Lamina are just in the process of launching out the new ATLAS range.I got some details at Lightfair. The 4700K version will give typically 175 lumens at 5.3W (33 lm/W) and 250 lumens at 8.6W (29 lm/W).
The lumens per Watt from 5W+ devices is lower than 1W parts but these efficacy figures stack up well when compared to K2 at a 1500mA drive current.
After ATLAS, next up is TITAN. This looks like a replacement for the BL-3000 series, has reflectors and connector onboard and looks like it will be a 1000 lumen package.
The lumens per Watt from 5W+ devices is lower than 1W parts but these efficacy figures stack up well when compared to K2 at a 1500mA drive current.
After ATLAS, next up is TITAN. This looks like a replacement for the BL-3000 series, has reflectors and connector onboard and looks like it will be a 1000 lumen package.
Mr_Light
Enlightened
Who will be the first to make a TitanTurbo based flashlight?
http://www.marketwire.com/mw/release_html_b1?release_id=239279&tsource=3
http://www.marketwire.com/mw/release_html_b1?release_id=239279&tsource=3
