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Related Experiment Video

Updated: Feb 19, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Lensless imaging through multiple phase patterns illumination.

Anwar Hussain^1,2, Yicheng Li¹, Diyi Liu¹

¹Zhejiang University, College of Optical Science and Engineering, State Key Laboratory of Modern Opti, China.

Journal of Biomedical Optics

|November 13, 2017

Summary

This summary is machine-generated.

A new lensless optical system uses random phase patterns to create high-resolution images. This stable and cost-effective technique enhances image quality for various applications.

Keywords:

coherent optical system image processing image reconstruction resolution

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Related Experiment Videos

Last Updated: Feb 19, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Published on: February 12, 2014

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

Area of Science:

Optics and Photonics
Image Acquisition Systems
Microscopy

Background:

High-quality imaging demands stable optical systems.
Traditional setups often face limitations in resolution and field of view.
Lensless imaging offers potential for compact and cost-effective solutions.

Purpose of the Study:

To develop a stable, lensless optical system for high-resolution imaging.
To achieve a large field of view with improved signal-to-noise ratio.
To present a compact and cost-effective imaging solution.

Main Methods:

Utilized a motionless, lensless optical setup.
Employed sequential illumination with multiple random phase patterns.
Implemented image subtraction with system calibration and propagation to the sample plane.

Main Results:

Achieved a final image resolution of approximately 4 micrometers.
Obtained a large field of view of approximately 15 square millimeters.
Demonstrated a superior signal-to-noise ratio in the final reconstructed images.

Conclusions:

The developed lensless technique provides a compact, stable, and cost-effective imaging system.
The method successfully enhances image resolution and field of view.
This approach offers a promising alternative for high-quality image acquisition.