CN104224107A - 眼科检测仪器的Placido盘 - Google Patents

眼科检测仪器的Placido盘 Download PDF

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Publication number
CN104224107A
CN104224107A CN201410423250.6A CN201410423250A CN104224107A CN 104224107 A CN104224107 A CN 104224107A CN 201410423250 A CN201410423250 A CN 201410423250A CN 104224107 A CN104224107 A CN 104224107A
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disc
radial
plasido
disk body
light shielding
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贺极苍
过小容
贺吉军
李牧
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JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
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JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
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Abstract

本发明公开了一种眼科医疗器械部件，具体地说是一种眼科检测仪器的Placido盘。它包括锥形的盘体，盘体上排列有环形遮光带，其特征在于：盘体上设置有投影为径向方向的一条以上的径向遮光带，所述环形遮光带形成横辐，径向遮光带形成纵辐。采用上述的结构后，由于盘体上设置有投影为径向的径向遮光带，在径向加了N根辐条，较原有的结构可以实现对角膜表面切向数据的分析，提高了角膜地形的测量精度，对之后的角膜的治疗和矫正提供了更全面和更精确的数据，从而弥补现有设备对角膜数据分析的不足。

Description

眼科检测仪器的Placido盘
 
技术领域
    本发明涉及一种眼科医疗器械部件，具体地说是一种眼科检测仪器的Placido 盘。
背景技术
现有的Placido 盘，包括盘体，盘体上设置有黑白相间的同心环，由此可对眼睛进行检测，由于其径向并没有纵辐，这就导致角膜切向的数据无法检测，数据分析不完善。
发明内容
本发明要解决的技术问题是提供一种能够提高角膜地形的测量精度，对之后的角膜的治疗和矫正提供更全面和更精确的数据的眼科检测仪器的Placido 盘。
为了解决上述技术问题，本发明的眼科检测仪器的Placido 盘，包括锥形的盘体，盘体上排列有环形遮光带，其特征在于：盘体上设置有投影为径向方向的一条以上的径向遮光带，所述环形遮光带形成横辐，径向遮光带形成纵辐。
所述环形遮光带和径向遮光带均包括开在盘体上的凹槽以及凹槽内覆盖的黑漆层。
所述盘体的背面喷砂处理层。
所述盘体由亚克力材料制成。
采用上述的结构后，由于盘体上设置有投影为径向的径向遮光带，在径向加了N根辐条，较原有的结构可以实现对角膜表面切向数据的分析，提高了角膜地形的测量精度，对之后的角膜的治疗和矫正提供了更全面和更精确的数据，从而弥补现有设备对角膜数据分析的不足。
附图说明
    图1为本发明眼科检测仪器的Placido 盘的截面结构示意图。
具体实施方式
下面结合附图和具体实施方式，对本发明的眼科检测仪器的Placido 盘作进一步详细说明。
如图所示，本发明的眼科检测仪器的Placido 盘，包括锥形的盘体1，盘体1由亚克力材料制成，盘体1上排列有环形遮光带2，盘体1上设置有投影为径向的径向遮光带3，环形遮光带2形成横辐，径向遮光带3形成纵辐，也就是说本发明的眼科检测仪器的Placido 盘为N个黑白相间的同心圆环和N根均布辐条组成，基于光的反射原理，确定每个圆环的宽度，以保证在成像后的图像每个圆环可以达到间距相等，N根辐条可以用加工中心一次做出，环形遮光带2和径向遮光带3分别包括有开在盘体上的凹槽以及凹槽内覆盖的黑漆层，具体制作过程中是在凹槽喷上无光黑漆，盘体1的背面喷砂处理层，达到照明均匀性；由此可见，本发明的主体为透明亚克力材料，所有凹槽填补遮光充填物，为不透光部分，当光源从盘体的背面照射时，其会在眼睛上形成黑白相间的同心圆环，以及N条纵向的辐条，根据同心环及辐条的位置变化，经过软件处理分析可重新构造眼角膜的表面特征。

Claims (4)

1.一种眼科检测仪器的Placido 盘，包括锥形的盘体（1），盘体（1）上排列有环形遮光带（2），其特征在于：所述盘体（1）上设置有投影为径向的径向遮光带（3），所述环形遮光带（2）形成横辐，径向遮光带（3）形成纵辐。
2.按照权利要求1所述的眼科检测仪器的Placido 盘，其特征在于：所述环形遮光带（2）和径向遮光带（3）分别包括开在盘体上的凹槽以及凹槽内覆盖的黑漆层。
3.按照权利要求1所述的眼科检测仪器的Placido 盘，其特征在于：所述盘体（1）的背面喷砂处理层。
4.按照权利要求1所述的眼科检测仪器的Placido 盘，其特征在于：所述盘体（1）由亚克力材料制成。
CN201410423250.6A 2014-08-26 2014-08-26 眼科检测仪器的Placido盘 Pending CN104224107A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112244761A (zh) * 2020-11-11 2021-01-22 中国科学院苏州生物医学工程技术研究所 一种便携式角膜地形图仪
WO2024037035A1 (zh) * 2022-08-15 2024-02-22 杭州微晓医疗科技有限公司 基于角膜反射的投影装置、角膜照影仪、角膜地形图仪及其检测方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059773A (en) * 1996-08-12 2000-05-09 Visionrx.Com, Inc. Method and apparatus for measuring properties of the eye using an virtual object
US6447119B1 (en) * 1996-08-12 2002-09-10 Visionrx, Inc. Apparatus for visualizing the eye's tear film
CN1703161A (zh) * 2002-09-30 2005-11-30 博士伦公司 蛛网Placido图样
CN101080191A (zh) * 2004-12-16 2007-11-28 博士伦公司 点式径向环形普拉西多图样
US20080204659A1 (en) * 2007-02-27 2008-08-28 Carbonari Kenneth J Placido Projector for Corneal Topography System
CN102657512A (zh) * 2012-05-11 2012-09-12 浙江工业大学 一种应用于角膜地形图仪中的图像采集设备
CN204091947U (zh) * 2014-08-26 2015-01-14 江苏仁健光电科技有限公司 眼科检测仪器的Placido盘

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059773A (en) * 1996-08-12 2000-05-09 Visionrx.Com, Inc. Method and apparatus for measuring properties of the eye using an virtual object
US6447119B1 (en) * 1996-08-12 2002-09-10 Visionrx, Inc. Apparatus for visualizing the eye's tear film
CN1703161A (zh) * 2002-09-30 2005-11-30 博士伦公司 蛛网Placido图样
CN101080191A (zh) * 2004-12-16 2007-11-28 博士伦公司 点式径向环形普拉西多图样
US20080204659A1 (en) * 2007-02-27 2008-08-28 Carbonari Kenneth J Placido Projector for Corneal Topography System
CN102657512A (zh) * 2012-05-11 2012-09-12 浙江工业大学 一种应用于角膜地形图仪中的图像采集设备
CN204091947U (zh) * 2014-08-26 2015-01-14 江苏仁健光电科技有限公司 眼科检测仪器的Placido盘

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112244761A (zh) * 2020-11-11 2021-01-22 中国科学院苏州生物医学工程技术研究所 一种便携式角膜地形图仪
WO2024037035A1 (zh) * 2022-08-15 2024-02-22 杭州微晓医疗科技有限公司 基于角膜反射的投影装置、角膜照影仪、角膜地形图仪及其检测方法

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Application publication date: 20141224