发明申请
- 专利标题: Fundus imaging apparatus and fundus imaging method
- 专利标题(中): 眼底成像装置和眼底成像方法
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申请号: US11363998申请日: 2006-03-01
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公开(公告)号: US20060197912A1公开(公告)日: 2006-09-07
- 发明人: Junichi Akita , Naoyuki Kondo , Akihiro Fujishiro , Katsuyasu Mizuno
- 申请人: Junichi Akita , Naoyuki Kondo , Akihiro Fujishiro , Katsuyasu Mizuno
- 申请人地址: JP GAMAGORI-SHI
- 专利权人: NIDEK CO., LTD.
- 当前专利权人: NIDEK CO., LTD.
- 当前专利权人地址: JP GAMAGORI-SHI
- 优先权: JP2005-060051 20050304
- 主分类号: A61B3/14
- IPC分类号: A61B3/14
摘要:
A fundus imaging apparatus comprises: a beam emitter which simultaneously emits a first laser beam and a second laser beam having a different wavelength from the first beam; an irradiation optical system having a beam scanner which scans the emitted first and second beams in two dimensions on a fundus, the irradiation optical system being adapted to irradiate the emitted first and second beams onto the fundus; a first filter which intercepts the first and second beams reflected by the fundus and second fluorescence from the fundus by irradiation of the second beam and transmits first fluorescence from the fundus by irradiation of the first beam; a second filter which intercepts the first and second beams reflected by the fundus and the first fluorescence from the fundus and transmits the second fluorescence from the fundus; an imaging optical system having a photo-receiving element which receives the first fluorescence having passed through the first filter and the second fluorescence having passed through the second filter; a filter changer which continuously alternately disposes the first filter and the second filter in an optical path of the imaging optical system in sync with scanning by the beam scanner; and an image processing part which obtains a first fundus image based on a received light signal of the first fluorescence from the photo-receiving element and obtains a second fundus image based on a received light signal of the second fluorescence from the photo-receiving element.
公开/授权文献
- US07198367B2 Fundus imaging apparatus and fundus imaging method 公开/授权日:2007-04-03
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