Invention Grant
US08777411B2 Fundus examination device capable of aiding in gaze fixation and image focusing
有权
眼底检查装置能够帮助凝视固定和图像聚焦
- Patent Title: Fundus examination device capable of aiding in gaze fixation and image focusing
- Patent Title (中): 眼底检查装置能够帮助凝视固定和图像聚焦
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Application No.: US13728645Application Date: 2012-12-27
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Publication No.: US08777411B2Publication Date: 2014-07-15
- Inventor: Che Liang Tsai , Chung Ping Chuang , Yen Jen Chang
- Applicant: Crystalvue Medical Corporation
- Applicant Address: TW Taoyuan County
- Assignee: Crystalvue Medical Corporation
- Current Assignee: Crystalvue Medical Corporation
- Current Assignee Address: TW Taoyuan County
- Agency: Rabin & Berdo, P.C.
- Priority: TW101115068A 20120427
- Main IPC: A61B3/14
- IPC: A61B3/14 ; A61B3/10

Abstract:
A fundus examination device aiding in gaze fixation and image focusing includes a light projecting device for projecting an examination light to illuminate an examinee's fundus; an illuminating system for transmitting the examination light to the examinee's eye and receiving a fundus image; an imaging system for showing the fundus image; and a focusing and gaze-fixation device located in the illuminating system and including a focus mask formed in a focusing zone, on which the examinee's eye focuses. The focus mask includes a split image screen surrounded by a light-penetrable structure, and gaze fixation devices for forming gaze-fixation images at examinee's eye focusing positions within the focusing zone, such that the split image screen and the gaze-fixation images are located at different focal positions corresponding to the examinee's eye curvature. Therefore, when a split image focusing is completed, the gaze-fixation images are also located at clearly recognizable focal positions.
Public/Granted literature
- US20130286346A1 FUNDUS EXAMINATION DEVICE CAPABLE OF AIDING IN GAZE FIXATION AND IMAGE FOCUSING Public/Granted day:2013-10-31
Information query