TY - JOUR
T1 - Multispectral composite projection system based on novel spectral time-division encoding technology
AU - Tian, Jiangyu
AU - Wu, Yunan
AU - Chang, Jun
AU - Wang, Liang
AU - Huang, Yi
AU - Wang, Lingjie
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/5
Y1 - 2025/5
N2 - In current multispectral projection technologies, the colors projected by multispectral projection systems based on filter wheels depend on the characteristics of the light source and filters used. Although increasing the number of color channels, these systems still cannot reproduce arbitrary spectra. On the other hand, multispectral projection systems using multiple stacked projection devices require precise geometric calibration between devices, increasing the system's size and operational complexity. To address these problems, we propose an advanced multispectral composite projection system based on novel spectral time-division encoding technology. This system uses a beam shaping system to shape a visible full-spectrum light source, then employs a grating to split the light into different wavelengths. Finally, the high dynamic response of a DMD and a FSM is used to stack the spectra in the time domain, achieving the effect of multispectral composite projection. The experiments verify the effectiveness of the proposed multispectral composite projection system, demonstrating an expansion of the color gamut. The proposed system in this paper has potential applications in fields such as multispectral projection camouflage and wide-gamut projection.
AB - In current multispectral projection technologies, the colors projected by multispectral projection systems based on filter wheels depend on the characteristics of the light source and filters used. Although increasing the number of color channels, these systems still cannot reproduce arbitrary spectra. On the other hand, multispectral projection systems using multiple stacked projection devices require precise geometric calibration between devices, increasing the system's size and operational complexity. To address these problems, we propose an advanced multispectral composite projection system based on novel spectral time-division encoding technology. This system uses a beam shaping system to shape a visible full-spectrum light source, then employs a grating to split the light into different wavelengths. Finally, the high dynamic response of a DMD and a FSM is used to stack the spectra in the time domain, achieving the effect of multispectral composite projection. The experiments verify the effectiveness of the proposed multispectral composite projection system, demonstrating an expansion of the color gamut. The proposed system in this paper has potential applications in fields such as multispectral projection camouflage and wide-gamut projection.
KW - DLP projection
KW - Multispectral projection
KW - Spectral time-division encoding
KW - Wide-gamut projection
UR - http://www.scopus.com/inward/record.url?scp=85212561494&partnerID=8YFLogxK
U2 - 10.1016/j.optlastec.2024.112313
DO - 10.1016/j.optlastec.2024.112313
M3 - Article
AN - SCOPUS:85212561494
SN - 0030-3992
VL - 183
JO - Optics and Laser Technology
JF - Optics and Laser Technology
M1 - 112313
ER -