| 1. | Testing technology for aspheric wavefront aberration
非球面波像差的检测技术 |
| 2. | Modern corneal laser surgery has been one of the effective methods for wavefront aberration correction in recent years
近年来准分子激光角膜技术迅速发展,人眼波前像差的矫正成为该领域研究的热点问题。 |
| 3. | A model made up of pulse compression grating pair with wavefront aberration is applied to calculate the effect of the wavefront aberration on pulse compression
理论分析结果表明：脉冲压缩光栅系统最大波像差不大于/ 4时，脉冲压缩比的最大变化率约为2 % 。 |
| 4. | Using the wavefront aberration map and the mtf , interaction between aberrations to improve or reduce visual performance is discussed . 2 . a model for wavefront reconstruction from slopes of reflected wave is presented
2 .从理论上建立了由眼底发出的测试波前斜率测量值重建波前曲面(数值上等于波前像差)的模型。 |
| 5. | The preliminary conclusion shows that the maximum rate of compression ratio changes is about 2 % and the change rate is less when the peak - to - valley value of wavefront aberration is less than a quarter of wavelength and incident angle is properly
脉冲压缩光栅对系统达到衍射极限时，在选择适当的入射角度时，光栅波像差所引起的脉冲压缩比变化并不大。 |
| 6. | The experimental results show that the excimer laser refractive system is characteristic of short cure time , high accuracy , surface smoothness and easy to integrate the wavefront aberration technology
实验结果表明，该矫正系统具有治疗时间短、矫正精度高、角膜切削表面光滑，易于集成波前像差技术实现“个体化切削”方案等优点，具有较好的临床应用前景。 |
| 7. | And wherein the model is adapt to the change of size of the transition zone of corneal . the model can be used to correct wavefront aberration . the hardware and sofeware of the ophthalmic excimer laser system is designed
设计了准分子激光人眼像差矫正系统的硬件和软件系统,并对像差矫正系统实现的关键技术? ?飞点扫描技术、主动跟踪技术、能量闭环控制技术进行了深入的研究。 |
| 8. | An ophthalmic excimer laser system used to correct wavefront aberration is presented . the conception and zernike representation of wavefront aberration of human eyes recommended by osa are introduced . the connection of wavefront aberration and ablation profile is analyzed and a model for calculating ablation profile to correct wavefront aberration is presented . because the ablation depth on the boundary is nonzero and irregular , we present a model for calculating ablation profile in a transition zone
深入研究了准分子激光像差矫正系统,采用美国光学大会推荐的像差的定义、像差的zernike多项式表示方法,定量分析zernike多项式表示的像差与角膜切削量的关系,采用主观式人眼像差仪测量像差,得出了像差矫正的角膜切削模型,并提出了一种采用过渡函数进行边界切削的方法,用于可调的过渡区切削量的计算,为人眼单色像差的矫正提供了理论基础。 |
| 9. | Based on the relationship between the change of the cornea thickness and optical path length , the ablation profile for the correction of wavefront aberration is presented and simulated on computer . the process of scanning - spot excimer laser is studied and simulated on computer . models for calculation of residual wavefront aberration on situations of lateral decentration and torsional misalignment are brought up
使用改变光程的方法建立起波前像差与角膜切削量之间的关系,并对像差矫正模型进行计算仿真;深入研究了小光斑准分子激光飞点扫描模型,对飞点扫描过程进行计算仿真;提出了中心偏移和旋转情况下剩余像差计算模型,为定量研究切削中心定位精度对像差矫正的影响提供了依据。 |
| 10. | And the pivotal technique of the system is researched in the paper . according to this paper ’ s research result , the ophthalmic excimer laser system used to correct wavefront aberration is developed with cooperation of su zhou 66 vision tech co . , ltd . the system has been applied into the clinic and achieved satisfied outcomes
根据论文理论研究成果,在原有的国产准分子激光屈光矫正系统上,同有关单位合作,在国内首先研制了准分子激光像差矫正装备,目前已经投入临床应用,取得了良好的效果。 |
