Table 6-3 Micromirror Array Optical
Characteristics
PARAMETER |
MIN |
NOM |
MAX |
UNIT |
Mirror Tilt angle,
variation device to device(1)
(2) |
15.6 |
17.0 |
18.4 |
degrees |
Number of
out-of-specification micromirrors (3) |
Adjacent micromirrors |
|
|
0 |
micromirrors |
Non-Adjacent micromirrors |
|
|
10 |
DMD Efficiency (420
nm–680 nm) |
|
|
68
|
%
|
(1) Limits on variability of micromirror tilt angle are critical in
the design of the accompanying optical system. Variations in tilt angle within a
device may result in apparent non-uniformities, such as line pairing and image
mottling, across the projected image. Variations in the average tilt angle
between devices may result in colorimetric and system contrast variations.
(2) See Micromirror Landed Orientation and Tilt.
(3) An out-of-specification micromirror is defined as a micromirror
that is unable to transition between the two landed states within the specified
micromirror switching time.