TSAI, CHE LIANG,蔡哲良,蔡哲良,CHUANG, CHUNG PING,庄仲平,莊仲平,CHANG, CHUNG JEN,张彦仁,張彥仁
申请号：
TW101110016
公开号：
TW201338751A
申请日:
2012.03.23
申请国别(地区):
TW
年份:
2013
代理人:
摘要：
The present invention provides an assistive gaze and image-forming focusing device that is made up of a lighting system, an image forming system, a focusing device, and a gaze device. The lighting system projects an inspection light to illuminate ophthalmic fundus of an inspection subject. The image forming system receives a reflected light from the inspection subject and an image of the ophthalmic fundus and comprises an image displayer to form an image with the reflected light and the ophthalmic fundus image. The focusing device comprises an image splitting screen structure in the lighting system and an adjusting means for forming focus of the split image, in collaboration with the image splitting screen, in the image forming system. The gaze device is located in the lighting system to form a gaze surface, and the gaze surface comprises a plurality of gaze points that generate contrast with respect to the inspection light. The present invention directly combines the gaze and focusing devices with the lighting system and image forming system so that no additional optic path system is needed, thereby greatly simplifying the optic path structure of an ophthalmic fundus camera. Further, an independently controllable gaze points are provided to serve as a gaze target, allowing the inspection subject to concentrate and gaze at a specific direction.本發明輔助凝視與成像對焦裝置由照明系統、成像系統、對焦裝置及凝視裝置所構成,其中,照明系統投射檢測光線來照亮受測者眼底;成像系統接收受測者的反射光線及眼底影像,並由顯像器成像反射光線及眼底影像;對焦裝置於照明系統中設有裂像屏結構,另於成像系統中設有配合裂像屏形成裂像對焦的調整手段;而凝視裝置位於照明系統中形成一凝視面,且凝視面上具有多數個與檢測光線產生反差對比的凝視點。本發明將凝視與對焦裝置直接整合於照明與成像系統中,不需額外衍伸其他光路系統,大幅簡化眼底照相機器的光路結構設計;另設計可獨立控制的凝視點作為凝視目標,讓受測者更能專注凝視某一特定方向。20...眼睛21...瞳孔22...眼底23...眼角膜24...水晶體30...照明系統31...發光器32...聚光透鏡33...第一凸透鏡34...環形狹縫板35...第二凸透鏡36...反射鏡37...第三凸透鏡38...穿孔鏡39...照明光路40...成像系統41...接物鏡42...中繼透鏡43...顯像器44...成像光路50...輔助元件51...聚焦透鏡52...裂像屏53...凝視點57...垂直平面
