Scanner design and resolution trade-offs for miniature scanning displays

Miniature displays based on scanning a low power beam directly onto the viewer's retina can offer high spatial and color resolution and very high luminance.For scanning display systems, the resolution is primarily determined by the product of scan-angle and mirror-size. Once (theta) D is determined based on resolution requirements, it then remains to choose D and (theta) . Once choice of D and (theta) has a big impact in scanner design and many factors need to be taken into account. This paper discuses how D and (theta) should be chosen considering the limitations due to dynamic mirror deformation, stress in flexures, scanner frequency, optomechanical design, size, and cost.