The equations below are valid for each DMD
in a single chip or multi-chip DMD system.
- QILLUMINATION =
(QINCIDENT × DMD average thermal absorptivity) (W)
- QINCIDENT = measured total
illumination optical power at DMD (W)
- DMD average thermal absorptivity =
0.40
QELECTRICAL =
3.32 W
QINCIDENT = 46.9 W (measured)
TCERAMIC = 50.0 °C
(measured)
QARRAY = 3.32 W + (46.9 W × 0.40) = 22.1 W
TARRAY = 50.0 °C + (22.1 W ×
0.60 °C/W) = 63.3 °C