Size and weight

A smartphone companion projector should be “pocketable,” or at least small enough to easily fit in a bag without the additional weight being significant. The trade-off of a smaller, lighter projection system is typically lower brightness output given the use of smaller DLP chips (shown in Figure 8) and LEDs, as well as lower LED power consumption. A mobile accessory should find the right balance between size, weight, and performance. For example, a well-designed thermal management system can help improve brightness and reduce heat without increasing size and weight.

Figure 8 Three different sizes of DLP Pico DMDs – the smallest has a micromirror array diagonal of 0.2 inches.