LCoS microdisplay throughout measurements

摘要

We propose a straight forward method to measure the absolute throughout of an LcoS microdisplay. The method requires two measurements. The first measurements is of the lumens deliv- ered from a testable, which includes the microdisplay under test, with a folded light path. The second measurement is of the lumens delivered by the unfolded tested with the microdisplay removed. This second measurement is used to normalize the first to obtain a fractional transmission that a designer can use to make a meaningful prediction of the system brightness of a LcoS-based projection system.