倾斜对薄透镜倾斜光焦度矢量的影响。
Effect of tilt on the tilted power vector of a thin lens.
作者信息
Harris W F
机构信息
Optometric Science Research Group, Department of Optometry, University of Johannesburg, Johannesburg, South Africa.
出版信息
Optom Vis Sci. 2006 Sep;83(9):693-6. doi: 10.1097/01.opx.0000232816.03812.29.
PURPOSE
The purpose of this study is to derive the equation for the effect of tilt on the tilted power vector of a possibly astigmatic thin lens.
METHODS
The analysis makes use of the equation for tilted power in terms of the dioptric power matrix.
RESULTS
A simple equation is obtained for the tilted power vector of a thin lens in terms of the untilted power vector of the lens. A solution of the equation provides a means for compensating spectacle lenses for tilt. Numerical examples are presented in the (available online at www.optvissci.com).
CONCLUSIONS
The equation gives insight and is useful for researchers and clinicians working in terms of power expressed as power vectors.
目的
本研究的目的是推导倾斜对可能存在散光的薄透镜倾斜屈光力矢量影响的方程。
方法
该分析利用了基于屈光力矩阵的倾斜屈光力方程。
结果
得到了一个关于薄透镜倾斜屈光力矢量的简单方程，该方程以透镜未倾斜时的屈光力矢量表示。该方程的解为补偿眼镜镜片的倾斜提供了一种方法。数值示例见（可在www.optvissci.com在线获取）。
结论
该方程具有启发性，对以屈光力矢量表示屈光力进行研究的研究人员和临床医生很有用。
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