A configuration for laser direct printing (LDP) of a computer-generated hologram (CGH) is proposed and implemented. The CGH is generated by a ray-tracing method, displayed by a digital micromirror device (DMD), demagnified by a bi-telecentric lens, and recorded on a holographic plate. To prevent aliasing and distortion, the resolution matching between the generation and printing of CGH is established and analyzed, and the parameters of the system are optimized. The theoretical results demonstrate that the proposed LDP system of CGH and the parameter-optimizing criterion for the LDP can record and reconstruct the hologram well.
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Su et al. (2017) studied this question.
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