Soft Robots Vision
A flexible lens controlled by light-activated artificial muscles promises to let soft machines see.
Image credit: Corey Zheng/Georgia Institute of Technology.
By Corey Zheng, Georgia Institute of Technology and Shu Jia, Georgia Institute of Technology
Inspiration from Human Eye
Inspired by the human eye, researchers at Georgia Tech have designed an adaptive lens made of soft, light-responsive, tissue-like materials.
Traditional vs. Soft Lens
Adjustable camera systems usually require bulky, moving, solid lenses and a pupil in front of a camera chip to adjust focus and intensity. In contrast, human eyes perform these functions using soft, flexible tissues in a compact form.
Photo-Responsive Hydrogel Soft Lens (PHySL)
The PHySL replaces rigid components with soft polymers acting as artificial muscles, composed of a hydrogel - a water-based polymer material.
Our lens, called the photo-responsive hydrogel soft lens, or PHySL, replaces rigid components with soft polymers acting as artificial muscles.
Author's summary: Researchers designed a soft, adaptive lens inspired by the human eye.
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