A non-mydriatic fundus camera designed with two-channel illumination

Wenchao Zhang, Jun Chang*, Weilin Chen, Xuehui Zhao, Bingqing Xie

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

With the improvement of people's health awareness, portable fundus cameras for health monitoring are popular. In order to solve the problem of non-mydriasis in fundus cameras based on new smart phones, we propose a dual channel lighting non-mydriasis method. The system focus with 680nm light, and captures color images with white light flash. In this study, a group of orthogonal polarizers were used to eliminate the stray light caused by the front eyepiece, and a circular light source was used to suppress corneal reflection. The system performs well with a field of view of 45° and a pupil diameter of 3mm, when refractive error ranges from -10D to +10D. The imaging quality of the system is good in 480-700nm band. This study provides a reliable scheme for telemedicine of senile ophthalmic diseases.

源语言英语
主期刊名Optics in Health Care and Biomedical Optics XII
编辑Qingming Luo, Xingde Li, Ying Gu, Dan Zhu
出版商SPIE
ISBN(电子版)9781510657069
DOI
出版状态已出版 - 2022
活动Optics in Health Care and Biomedical Optics XII 2022 - Virtual, Online, 中国
期限: 5 12月 202211 12月 2022

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
12320
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议Optics in Health Care and Biomedical Optics XII 2022
国家/地区中国
Virtual, Online
时期5/12/2211/12/22

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