Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation

被引：5

作者：

Fujiwara, Masato ^{[1
]}

Takada, Naoki ^{[2
]}

Araki, Hiromitsu ^{[1
]}

Ooi, Chun Wei ^{[3
]}

Ikawa, Shohei ^{[3
]}

Maeda, Yuki ^{[1
]}

Niwase, Hiroaki ^{[1
]}

Kakue, Takashi ^{[4
]}

Shimobaba, Tomoyoshi ^{[4
]}

Ito, Tomoyoshi ^{[4
]}

机构：

[1] Kochi Univ, Grad Sch Integrated Arts & Sci, Kochi 7808520, Japan

[2] Kochi Univ, Res & Educ Fac, Nat Sci Cluster, Sci Dept, Kochi 7808520, Japan

[3] Kochi Univ, Fac Sci, Kochi 7808520, Japan

[4] Chiba Univ, Grad Sch Engn, Chiba 2638522, Japan

来源：

CHINESE OPTICS LETTERS | 2017年 / 15卷 / 06期

基金：

日本学术振兴会;

关键词：

DEVICE;

D O I：

10.3788/COL201715.060901

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页数：4

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