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Studies on automated display system for pseudoisochromatic plates. :4. Attempts at reduction in size Kaitiro Hukami 1 1Dept of Ophthalmol, Fukui Med Sch pp.1941-1943
Published Date 1990/12/15
DOI https://doi.org/10.11477/mf.1410900465
  • Abstract
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We have developed several types of automateddisplay system of pseudoisochromatic plates tostandardize the testing conditions. The first proto-type was unacceptably bulky. The second workedefficiently but was inconvenient in size. The third,with only one testing plate, was designed to mini-mize the size. It was less practical than the formerones. In the fourth and latest prototype, the plateswere mounted on each face of a hexagonal rotator, resulting in reduction in the width of the apparatus.The length was reduced by using two mirrors tokeep the prescribed test distance. This fourth proto-type was satisfactory in its function and will serveas the basis for the final version.


Copyright © 1990, 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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