請問一下，規格內有 " The equations shown above are valid for a 1-Chip DMD system with a projection efficiency from the DMD to the screen of 87%. The constant 0.00274 is based on array characteristics. "，其中常數0.00274是怎來的？如果是3-Chip DMD system的話，此常數是否會不同？
請問一下，規格內有 " The equations shown above are valid for a 1-Chip DMD system with a projection efficiency from the DMD to the screen of 87%. The constant 0.00274 is based on array characteristics. "，其中常數0.00274是怎來的？如果是3-Chip DMD system的話，此常數是否會不同？
