Development of wide angle fovea telescope

Sota Shimizu, Yoshiaki Tanzawa, Takumi Hashizume

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This paper describes a wide angle fovea (WAF) telescope developed to help rangers save the people floating on the sea in the aftermath of tsunamis and other disasters. The WAF telescope is designed using a proposed Multiple-Stage WAF model having both a wide field of view (FOV) so that it never misses a moving target once it is captured and a high magnification in the central FOV that can resolve detail. This design concept is inspired by the smart function of the eyes of humans and raptors. In other words, the authors design an optical telescope with the dual functions of both wide angle surveillance and resolution of detail in order to improve its usability and convenience. The specification of the prototype has been determined paying attention to this point. The produced prototype has a handy size because it uses two aspherical surfaces in the entire lens compound system. We have tested the prototype and discussed its performance.

Original languageEnglish
Pages (from-to)368-373
Number of pages6
JournalIEEJ Journal of Industry Applications
Issue number4
Publication statusPublished - 2014
Externally publishedYes


  • Lens design
  • Wide angle fovea lens
  • Wide angle fovea telescope
  • Wide angle lens

ASJC Scopus subject areas

  • Automotive Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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