Edible lens made of agar

  • Miyu Nomura
  • Hiromasa OkuEmail author
Regular Paper


In the field of optics, there has been some interest in edible optical elements. In this paper, we propose an edible lens made of agar, which has been reported to be one of the ideal foodstuffs for forming optical devices. We describe a fabrication process for forming an edible spherical lens made of agar. The developed prototype’s focal length was 39.50 mm, and its resolution was 7.13 lp/mm. We also demonstrated another prototype with a built-in aperture, made of agar and red bean paste.


Lens Edible Agar Food 



This work is supported by JSPS Kakenhi under Grant no. JP18K19799.


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Copyright information

© The Optical Society of Japan 2019

Authors and Affiliations

  1. 1.School of Science and TechnologyGunma UniversityKiryuJapan
  2. 2.Faculty of Science and TechnologyGunma UniversityKiryuJapan

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