PROCEEDINGS OF THE ITE ANNUAL CONVENTION
Online ISSN : 2424-2292
Print ISSN : 1343-1846
ISSN-L : 1343-1846
1997
Conference information

Name : 1997 ITE Annual Convention

Location : [in Japanese]

Date : July 23, 1997 - July 25, 1997

Development of a Photorefractive Accommodation Measurement System
Nobuyuki Hiruma, Toshiya Morita, Mitsuho Yamada
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 198-199

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Abstract
An accommodation measurement system based on photorefraction method was developed. The fundus of the subject's eye is illuminated by an infra red LED and the reflected light was captured by a CCD with a concave lens and a cylindrical lens. The changes of the shape of the reflected light image corresponding to the accommodation state of the eye were observed It was found that this method is feasible for automated objective accommodation measurement.
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© 1997 The Institute of Image Information and Television Engineers
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