CN204091947U - 眼科检测仪器的Placido盘 - Google Patents

眼科检测仪器的Placido盘 Download PDF

Info

Publication number
CN204091947U
CN204091947U CN201420483545.8U CN201420483545U CN204091947U CN 204091947 U CN204091947 U CN 204091947U CN 201420483545 U CN201420483545 U CN 201420483545U CN 204091947 U CN204091947 U CN 204091947U
Authority
CN
China
Prior art keywords
photo
disk body
radial
shield strip
detecting instrument
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420483545.8U
Other languages
English (en)
Inventor
贺极苍
过小容
贺吉军
李牧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd filed Critical JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201420483545.8U priority Critical patent/CN204091947U/zh
Application granted granted Critical
Publication of CN204091947U publication Critical patent/CN204091947U/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

本实用新型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
    本实用新型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
本实用新型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，本实用新型的眼科检测仪器的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为本实用新型眼科检测仪器的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，对本实用新型的眼科检测仪器的Placido 盘作进一步详细说明。
如图所示，本实用新型的眼科检测仪器的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，也就是说本实用新型的眼科检测仪器的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，本实用新型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。
CN201420483545.8U 2014-08-26 2014-08-26 眼科检测仪器的Placido盘 Active CN204091947U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420483545.8U CN204091947U (zh) 2014-08-26 2014-08-26 眼科检测仪器的Placido盘

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420483545.8U CN204091947U (zh) 2014-08-26 2014-08-26 眼科检测仪器的Placido盘

Publications (1)

Publication Number Publication Date
CN204091947U true CN204091947U (zh) 2015-01-14

Family

ID=52260421

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420483545.8U Active CN204091947U (zh) 2014-08-26 2014-08-26 眼科检测仪器的Placido盘

Country Status (1)

Country Link
CN (1) CN204091947U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104224107A (zh) * 2014-08-26 2014-12-24 江苏仁健光电科技有限公司 眼科检测仪器的Placido盘

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104224107A (zh) * 2014-08-26 2014-12-24 江苏仁健光电科技有限公司 眼科检测仪器的Placido盘

Similar Documents

Publication Publication Date Title
AU2018212934B2 (en) Optical coherence metrology and tomography with improved registration
Hwang et al. Predictive value of fundus autofluorescence for development of geographic atrophy in age-related macular degeneration
Yang et al. Age-related changes in human corneal epithelial thickness measured with anterior segment optical coherence tomography
Ryu et al. Comparison of corneal epithelial remodeling after femtosecond laser–assisted LASIK and small incision lenticule extraction (SMILE)
PH12019501749A1 (en) Method for non-invasive monitoring of fluorescent tracer agent with diffuse reflection corrections
WO2012146711A3 (en) Systems and methods for improved ophthalmic imaging
Qiu et al. Diagnostic classification of retinal nerve fiber layer measurement in myopic eyes: a comparison between time-domain and spectral-domain optical coherence tomography
US20130128222A1 (en) Methods and Systems to Measure Corneal Epithelial Thickness and Power, Stromal Thickness, Subepithelial Corneal Power and Topography for Disease Diagnosis
NO20055062L (no) Kontaktlinse med formet periferi
MY194043A (en) Contact lens inspection method and system
JP2015104554A5 (zh)
Wong et al. Relationship between outer retinal layers thickness and visual acuity in diabetic macular edema
Scheuerle et al. Atlas of laser scanning ophthalmoscopy
Qiu et al. Application of the ISNT rules on retinal nerve fibre layer thickness and neuroretinal rim area in healthy myopic eyes
CN204091947U (zh) 眼科检测仪器的Placido盘
Tian et al. Evaluation of retinal nerve fiber layer and ganglion cell complex in patients with optic neuritis or neuromyelitis optica spectrum disorders using optical coherence tomography in a Chinese cohort
Demir et al. Mapping corneal thickness using dual-scheimpflug imaging at different stages of keratoconus
RU2493801C1 (ru) Разметчик капсулорексиса и астигматической оси торической интраокулярной линзы
CN104224107A (zh) 眼科检测仪器的Placido盘
Zhang et al. Geographic mapping of choroidal thickness in myopic eyes using 1050-nm spectral domain optical coherence tomography
US8696117B2 (en) Fitting a contact lens
Rangaraju et al. Association between visual acuity and retinal layer metrics in diabetics with and without macular edema
TW201612655A (en) Image acquisition device and image acquisition method
Kim et al. Choroidal thickness in primary open-angle glaucoma using spectral-domain optical coherence tomography
Wang et al. Diagnostic Classification of Bruch's Membrane Opening-Minimum Rim Width and Retinal Nerve Fiber Layer Thickness in Myopic Eyes by Optical Coherence Tomography

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shenzhen bright Medical Equipment Co., Ltd.

Assignor: JIANGSU RENJIAN PHOTOELECTRIC SCIENCE & TECHNOLOGY CO., LTD.

Contract record no.: 2015320000603

Denomination of utility model: Plasido disc for ophthalmic examination instrument

Granted publication date: 20150114

License type: Exclusive License

Record date: 20151009

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model