We recently purchased a LED projector from Vivitek for structured light application. The model is Qumi and its native resolution is 1280x800. However, we didn't get to know until we turned on this projector that this DMD chip has diamond-shape pixels instead of square-shape. After talking to the sales people, the only thing she knows is that the DMD size is 0.65". The diamond-shape pixel design won't work for our structured light application. We have to purchase another projector with regular square-shape pixels. However, the shape of the pixel is usually not specified in the disclosed document. And I couldn't find any data sheet for the 0.65" DMD chip on TI website either. For our application, we would need a LED projector with regular square-shape pxiels at relative large resolution (>=1024x768). My questions are:
1. What is the design trend of the DMD chip in terms of pixel shape?
2. Do you have square-shape pixel version available for 1280x800 or higher resolution?
3. How do we know if the projector has diamond-shape pixels or square-shape pxiels when we make a purchase?
I would greatly appreciate your help on this new issue for us.