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Japanese

Retina projection system using maxwelian view as a low vision aid Kunihiko Shiraki 1 , Takaharu Yasunari 1 , Hitoshi Tabuchi 1 , Tokuhiko Miki 1 , Takahisa Ando 2 , Hajime Nakamura 3 , Seiji Yamaguchi 4 , Eiji Shimizu 5 1Dept of Ophthalmol and Visual Sci, Osaka City Univ, Grad Sch of Med 2Visual Info Dept, Hypermedia Res Center, SANYO Electlic Co, Ltd 3Med Informatics & Med Economics, Osaka City Univ, Grad Sch of Med 4Times Corp Ltd 5Dept of Electrical Engineering, Osaka City Univ, Grad Sch of Engineering pp.466-469
Published Date 2002/4/15
DOI https://doi.org/10.11477/mf.1410907665
  • Abstract
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We developed a retinal projection system as a low-vision aid. A digital image is formed by spatial light modulator and red diode laser in this system. This image is then projected onto the retina with the maxwellian view. The projected image is seen clearly by the observer with no need to correct refraction error. This system was used as closed-circuit television in 12 low-vision persons with central scotoma. There was no difference in reading speed be-tween this sytem and face-mounted display. Six of the 12 persons saw clearer characteres with the system than head-mounted display. While the present system takes time in bringing the focused light to the pupillary area, it promises to be useful as a low-vision aid.


Copyright © 2002, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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