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Related Experiment Video

Updated: May 2, 2026

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT

Published on: August 4, 2018

Note: folded optical system for narrow forward looking probe.

Hsuan-Chao Hou¹, Dooyoung Hah¹, Jeonghwan Kim¹

¹Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA.

The Review of Scientific Instruments

|March 6, 2014

Summary

This summary is machine-generated.

This study presents an optical system using a graded index lens for laser beam manipulation. Its design enables obstacle avoidance and minimally invasive applications, particularly in endoscopic probes.

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Area of Science:

Optics and Photonics
Biomedical Engineering

Background:

Traditional endoscopic systems face limitations in maneuverability and invasiveness.
The need for advanced optical solutions in minimally invasive procedures is growing.

Purpose of the Study:

To describe a novel optical system for enhanced endoscopic probe functionality.
To highlight the system's potential for obstacle avoidance and reduced invasiveness.

Main Methods:

A single graded index lens is utilized in the optical system.
A laser beam is directed to make three passes through the lens.
Focus is achieved along the optic axis.

Main Results:

The system successfully forms a focus along the optic axis.
The optical configuration allows for a forward-looking characteristic.
The narrow structure is suitable for minimally invasive applications.

Conclusions:

The described optical system offers a promising solution for advanced endoscopic probes.
Its forward-looking capability enhances navigation and safety.
The system's design contributes to less invasive medical interventions.