Design on Digital Focimeter of Projection Type;
数字投影式焦度计的设计
Methods:Explain the difference between power and vertex power from basic definitions of optics, and analyze the measuring principle and error of focimeter.
方法 :从光学的基础定义出发 ,阐述光焦度和顶焦度的差别 ,并对焦度计的测量原理和误差进行正确分析。
This paper introduces the realization of focimeter system based on CCD and ARM,and discusses the interrelated parameter arithmetic of lens based on CCD at the same time.
介绍了基于CCD和ARM的焦度计系统的实现,同时着重讨论了了基于CCD的透镜的相关参数算法,最后介绍了基于该算法的系统的实现。
The application and principle of various kinds of domestic-made lensometers are described.
介绍各种国产焦度计的原理 ,对国外自动焦度计作了较为详细的叙述。
Aim A projective digital lensometer is presented.
目的 描述一种投影式数字焦度计 。
The lensometers is also called measural lens dioptre instrument,to measure spherical lens dioptre,cylindric lens dioptre and axis,prism dioptre,and lens optical center etc.
顶焦度计又称对光机、查片机,可用来测量球光镜镜度、散光镜镜度、棱镜镜度以及散光轴线和光学中心点等,是眼镜片冷加工中必不可少的检测仪器。
The Study of Comparison of Using Different Methods to Measure Corneal Curvature in Determining the Power of Intraocular Lens
不同仪器测量角膜曲率用于人工晶体屈光度计算的对比研究
dioptometer:an instrument used for measuring ocular refraction.
屈光计:用于测量眼睛折射度的仪器.
There is no significant difference of diopter between two groups before LASIK.
两组间 ,术前的屈光度无统计学差异。
The dioptre was from-6.25DS to -10.00DS.
屈光度范围-6,25DS～-10.00DS。
Corneal Ablation Depth of Refractive Myopia and Hypermetropia Correction
屈光性近视远视矫正的角膜消融深度计算
A unit of measurement of the refractive power of lenses equal to the reciprocal of the focal length measured in meters.
屈光度透镜或棱镜折光率的一种量度，等于以米计算焦距之倒数
Calculation of intraocular lens power after corneal refractive surgery
角膜屈光手术后人工晶状体屈光力的计算
These data were used to calculate the error of predicted postoperative refraction with SRKII intraocular lens power formulas.
我们采用了SRKⅡ工水晶体度数之计算公式来预估术后之屈光状态。
Clinical results in highly myopic eyes using the Haigis-L formula
Haigis-L公式计算超长眼轴患者所需人工晶状体屈光度精确性的研究
Intraocular lens power calculation in traumatic cataract with corneal scar
合并角膜瘢痕的外伤性白内障人工晶状体屈光度的计算方法
close-up filter
近摄滤光片，由+1至+10屈光度
Method According to the diopter,the cases were divided into 3 group.
方法按屈光不正度数共分3组,组71只眼,屈光度-1.00～3.00D;
Mean myopia diopter of 70 eyes(87 5%)was in the range of the predicted diopter ±1D.
术后屈光度平均值为-196±128D,70只眼(875%)在预矫屈光度±1D内。
Analysis of uncertainty in diopter measurement with eccentric photorefraction
偏心摄影验光法测量屈光度的不确定度分析
Analysis of Correlation between Refractive Degree of Myopia and Ocular Optical Components
近视眼屈光度及屈光系统各组成成分的相关性分析
Study on forecasted the accurate of intraocular lens diopter before operation
预设人工晶体屈光度准确性的探讨
Myopic refraction of all patients was within ±1.00D.
术后近视屈光度均在±100D以内。
Analysis about the examiniations of myopia diopter,eye axis and naked visual
近视屈光度、眼轴、裸眼视力的检测分析