Depth of focus increase by multiplexing programmable diffractive lenses
A combination of several diffractive lenses written onto a single programmable liquid crystal display (LCD) is proposed for increasing the Depth of Focus (DOF) of the imaging system as a whole. The lenses are spatially multiplexed in a random scheme onto the LCD. The axial irradiance distribution pr...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10944087_v14_n22_p10207_Iemmi |
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todo:paper_10944087_v14_n22_p10207_Iemmi2023-10-03T16:05:05Z Depth of focus increase by multiplexing programmable diffractive lenses Iemmi, C. Campos, J. Escalera, J.C. López-Coronado, O. Gimeno, R. Yzuel, M.J. Focusing Image quality Liquid crystal displays Monochromators Multiplexing Optical transfer function Incoherent monochromatic light Irradiance distribution Programmable diffractive lenses Programmable liquid crystal display Lenses A combination of several diffractive lenses written onto a single programmable liquid crystal display (LCD) is proposed for increasing the Depth of Focus (DOF) of the imaging system as a whole. The lenses are spatially multiplexed in a random scheme onto the LCD. The axial irradiance distribution produced by each lens overlaps with the next one producing an extended focal depth. To compare the image quality of the multiplexed lenses, the Modulation Transfer Function (MTF) is calculated. Finally we obtain the experimental Point Spread Functions (PSF) for these multiplexed lenses and experimental results in which an extended object is illuminated under spatially incoherent monochromatic light. We compare the images obtained in the focal plane and in some defocused planes with the single lens and with three multiplexed lenses. The experimental results confirm that the multiplexed lenses produce a high increase in the depth of focus. © 2006 Optical Society of America. Fil:Iemmi, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10944087_v14_n22_p10207_Iemmi |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Focusing Image quality Liquid crystal displays Monochromators Multiplexing Optical transfer function Incoherent monochromatic light Irradiance distribution Programmable diffractive lenses Programmable liquid crystal display Lenses |
| spellingShingle |
Focusing Image quality Liquid crystal displays Monochromators Multiplexing Optical transfer function Incoherent monochromatic light Irradiance distribution Programmable diffractive lenses Programmable liquid crystal display Lenses Iemmi, C. Campos, J. Escalera, J.C. López-Coronado, O. Gimeno, R. Yzuel, M.J. Depth of focus increase by multiplexing programmable diffractive lenses |
| topic_facet |
Focusing Image quality Liquid crystal displays Monochromators Multiplexing Optical transfer function Incoherent monochromatic light Irradiance distribution Programmable diffractive lenses Programmable liquid crystal display Lenses |
| description |
A combination of several diffractive lenses written onto a single programmable liquid crystal display (LCD) is proposed for increasing the Depth of Focus (DOF) of the imaging system as a whole. The lenses are spatially multiplexed in a random scheme onto the LCD. The axial irradiance distribution produced by each lens overlaps with the next one producing an extended focal depth. To compare the image quality of the multiplexed lenses, the Modulation Transfer Function (MTF) is calculated. Finally we obtain the experimental Point Spread Functions (PSF) for these multiplexed lenses and experimental results in which an extended object is illuminated under spatially incoherent monochromatic light. We compare the images obtained in the focal plane and in some defocused planes with the single lens and with three multiplexed lenses. The experimental results confirm that the multiplexed lenses produce a high increase in the depth of focus. © 2006 Optical Society of America. |
| format |
JOUR |
| author |
Iemmi, C. Campos, J. Escalera, J.C. López-Coronado, O. Gimeno, R. Yzuel, M.J. |
| author_facet |
Iemmi, C. Campos, J. Escalera, J.C. López-Coronado, O. Gimeno, R. Yzuel, M.J. |
| author_sort |
Iemmi, C. |
| title |
Depth of focus increase by multiplexing programmable diffractive lenses |
| title_short |
Depth of focus increase by multiplexing programmable diffractive lenses |
| title_full |
Depth of focus increase by multiplexing programmable diffractive lenses |
| title_fullStr |
Depth of focus increase by multiplexing programmable diffractive lenses |
| title_full_unstemmed |
Depth of focus increase by multiplexing programmable diffractive lenses |
| title_sort |
depth of focus increase by multiplexing programmable diffractive lenses |
| url |
http://hdl.handle.net/20.500.12110/paper_10944087_v14_n22_p10207_Iemmi |
| work_keys_str_mv |
AT iemmic depthoffocusincreasebymultiplexingprogrammablediffractivelenses AT camposj depthoffocusincreasebymultiplexingprogrammablediffractivelenses AT escalerajc depthoffocusincreasebymultiplexingprogrammablediffractivelenses AT lopezcoronadoo depthoffocusincreasebymultiplexingprogrammablediffractivelenses AT gimenor depthoffocusincreasebymultiplexingprogrammablediffractivelenses AT yzuelmj depthoffocusincreasebymultiplexingprogrammablediffractivelenses |
| _version_ |
1807318337845198848 |