Automatic Focusing Glasses for Presbyopia

• Abstract

  We have considered the important functions for developing accommodation-assistance glasses which can assist eye focusing for aged person with presbyopia. We focused on keys to realize small and lightweight variable focusing lens and gaze distance detection. We devised new variable focusing lenses with control and gaze distance detection with a tunnel light path device. A prototype of glasses with devised elements was manufactured experimentally. From the result of trial use of them and experiments for evaluating characteristics, it was confirmed that proposed technologies were useful for realization of accommodation-assistance glasses.

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• Published or Presented

  • Toyomi Fujita and Masanori Idesawa, ``Accommodation Assisting Glasses for Presbyopia'', Proceedings of SPIE Volume 4902, Optomechatronic Systems III, pp.99-109, November 12-14, (2002) (Stuttgart, Germany) [PDF File ]

  • Toyomi Fujita , Syu Sato and Makoto Hagiwara, ``Design and Development of Accommodation-Assistance Glasses for Presbyopia'', Proceedings of 2002 IEEE International Conference on Systems, Man and Cybernetics, Volume 1, pp.153-158, October 6-9, (2002) (Yasmine Hammamet, Tunisia) [ PDF File ] [ Slides ]

  • Toyomi Fujita, Syu Sato and Masanori Idesawa, ``A Gazing Point Distance Detection System for Accommodation Assisting Glasses'', Proceedings of IEEE Sensors 2002, pp.905-910, June 11-14, (2002) (Orlando, Florida, USA)

  • Toyomi Fujita, Makoto Hagiwara, Masanori Idesawa: ``Design of Automatic Focusing Glasses for Presbyopia'', Journal of Robotics and Mechatronics, Vol.13, No.6, pp.575-580(2001) [PDF File ]

  • Syu Sato, Toyomi Fujita, Masanori Idesawa: ``A Study on the Development of Accommodation-Assistance Glasses'', Journal of Robotics and Mechatronics, Vol.13, No.6, pp.581-587(2001) [PDF File ]

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• Related Publication
  • Toyomi Fujita, Masanori Idesawa, ``Possibility of Automatic Focus-Assisting Glasses for Presbyopia'', Atarashii Ganka, Vol.19, No.2, pp.165-172, 2002 (in Japanese)
    藤田豊己, 出澤正徳,　 ``老視用自動焦点調節補助眼鏡の可能性'', あたらしい眼科, Vol.19, No.2, pp.165-172, 2002
    

  • Toyomi Fujita 藤田豊己, ``Development of Accommodation-Assistance Glasses''(in Japanese) ``焦点補助眼鏡の開発について'', 社団法人 日本機械工業連合会 平成12年度人間感覚機能アシスト分野の産業創生に関する調査研究（2） pp.48-56 (2001.3)

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• Patent

  • IDESAWA MASANORI, FUJITA TOYOMI, SATO OSAMU, ``LENS BODY WITH VARIABLE FOCUS AND CONTROLLING MECHANISM OF THE SAME'', Japanese Patent, Publication No. 2001-249202, Sep 14, 2001

  • IDESAWA MASANORI, FUJITA TOYOMI, ``IMAGE PICKUP DEVICE FOR POSITION DETECTION'', Japanese Patent, Publication No. 2001-37724, Feb 13, 2001

  • IDESAWA MASANORI, FUJITA TOYOMI, ``AUTOMATIC FOCUSING SPECTACLES'', Japanese Patent, Publication No. 2000-249902, Sep 14, 2000

  • IDESAWA MASANORI, FUJITA TOYOMI, ``VARIABLE FOCUS LENS'', Japanese Patent, Publication No. 2000-249813, Sep 14, 2000

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