| 摘要 |
A head up display signal processing system is disclosed. The system comprises an image projector for projecting an image onto a screen, the screen being partially reflective and partially transmissive. The system is operable to provide a separate optical element at a plurality of locations upon the screen, wherein each element comprises an optical phase representative of the location of the element upon the screen, such that the combination of optical elements is arranged to produce an optical hologram upon the screen.
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