Chinese Optics Letters, 2017, 15 (6): 060901, Published Online: Jul. 20, 2018
Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation Download: 1021次
Abstract
We propose a simple gradation representation method using a binary-weighted computer-generated hologram (CGH) to be displayed on a high-speed spatial light modulator that can be controlled by the pulse-width modulation technique. The proposed method uses multiple bit planes comprising binary-weighted CGHs with various pulse widths. The object points of a three-dimensional (3D) object are assigned to multiple bit planes according to their gray levels. The bit planes are sequentially displayed in a time-division-multiplexed manner. Consequently, the proposed method realizes a gradation representation of a reconstructed 3D object.
Masato Fujiwara, Naoki Takada, Hiromitsu Araki, Chun Wei Ooi, Shohei Ikawa, Yuki Maeda, Hiroaki Niwase, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito. Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation[J]. Chinese Optics Letters, 2017, 15(6): 060901.