15 March 2007

Lights

One of the most obvious issues with projectors (DIY or not) is the lamps/lights. They don't last long and are costly. Obviously we want good quality (and consistent) light (I've read 6500°K), fairly cheap bulbs (ie: $100 or less), long lifetime, ease of obtaining...

I've been thinking about this, and think it might be worth it to try to find an LED alternative.

One company that I found that provides bright LED arrays is Lamina.

An example bulb from them is "NT-52D0-0429 Daylight White" [PDF]. With this one, we can get to 1070 lumens (which doesn't seem like enough) with 6200°K light... Most lamps I found are nowhere in this range of color...














Product:NT-52D0-0429 Daylight White
Color Temp. Min. (Kº):3950
Color Temp. Max. (Kº):6200
Total Incl. Angle:140
View Angle[1]:61
CRI Min:60
CRI Typ:68
Test Current (mA):1050
Typical (lm):878
Min. (lm):648
Drive Current (mA):1400
Typical (lm):1070








Drive Current (mA):1050
Distance from Source (Meters)1:795.6
2:198.9
5:31.8
10:8.0








Drive Current (mA):1400
Distance from Source (Meters)1:969.0
2:242.3
5:38.8
10:9.7







$85.83www.arrownac.com
$77.12www.mouser.com
$77.12www.digikey.com
$122.64export.farnell.com
direct:To request a sample or to speak with a sales applications engineer, call us at (609) 265-1401.