Table 2 Comparison between different modulation schemes in terms of frame rate/display time for DMD with refresh rate of 32 kHz.
From: High speed, complex wavefront shaping using the digital micro-mirror device
Modulation\specs | Frame rate | Minimum display time |
|---|---|---|
Binary (1-bit) | \(32\;{\text{kHz}}\) | \(31.25\;\upmu {\text{s}}\) |
Time (8-bit) | \(125\;{\text{Hz}} = \frac{{32\;{\text{kHz}}}}{{2^{8} }}\) | \(8\;{\text{ms}} = 31.25\;\upmu {\text{s}} \times 2^{8}\) |
Time (4-bit) | \(2\;{\text{kHz}} = \frac{{32\;{\text{kHz}}}}{{2^{4} }}\) | \(0.5\;{\text{ms}} = 31.25\;\upmu {\text{s}} \times 2^{4}\) |
Amplitude (8-bit) | \(4\;{\text{kHz}} = \frac{{32\;{\text{kHz}}}}{8}\) | \(250\;\upmu {\text{s}} = 31.25\;\upmu {\text{s}} \times {8}\) |
Amplitude (4-bit) | \(8\;{\text{kHz}} = \frac{{32\;{\text{kHz}}}}{4}\) | \(125\;\upmu {\text{s}} = 31.25\;\upmu {\text{s}} \times {4}\) |
