Abstract
Recently, an analysis of current scanned-beam laser projection systems
was presented and showed that the maximum achievable Class 2 eye-safe luminous
flux levels are fundamentally limited by the nature of the projection architecture.In this paper, an improved estimate for the maximum Class 2 eye-safe
luminous flux is derived by considering unidirectional and bidirectional scan
patterns. It is shown that, due to pulse spacing conditions at the edge of
the projected image, the maximum Class 2 eye-safe luminous flux could be significantly
lower when employing a bidirectional scan pattern than for the unidirectional
case.
© 2012 IEEE
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