Handheld and Cost-Effective Fourier Lightfield Microscope

Area of Science:

• Optical microscopy
• Biomedical imaging
• Instrumentation

Background:

• Lightfield microscopy enables 3D imaging and refocusing with a single shot.
• Existing Fourier Lightfield Microscopes (FLMic) are often expensive and not portable.
• There is a need for cost-effective and field-deployable 3D imaging solutions.

Purpose of the Study:

• To design, build, and test a highly portable, cost-effective Fourier Lightfield Microscope (FLMic).
• To demonstrate the feasibility of using off-the-shelf components for advanced microscopy.
• To provide a robust 3D imaging solution for in-field applications.

Main Methods:

• Construction of the FLMic using a surveillance camera lens and common optical elements.
• Integration of components to achieve a compact and lightweight handheld system.
• Testing the system's operability in bright-field and fluorescent modes.

Main Results:

• The developed FLMic is significantly more portable, easier to build, and cost-effective than conventional systems.
• The system successfully performs 3D imaging and refocusing using a single-shot approach.
• Optical performance is minimally impacted despite the use of low-cost components, achieving over 100x cost reduction.

Conclusions:

• The proposed FLMic is a strong candidate for in-field 3D imaging due to its portability, low cost, and robust performance.
• This design democratizes access to advanced lightfield microscopy capabilities.
• Further applications in diverse fields requiring accessible 3D imaging are anticipated.