| 投影式数字焦度计 |
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| 引用本文： | 王俊杰,马铁华,祖静.投影式数字焦度计[J].测试技术学报,2000,14(2):131-135. |
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| 作者姓名： | 王俊杰 马铁华 祖静 |
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| 作者单位： | 华北工学院电子工程系,山西太原 030051 |
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| 摘 要： | 目的 描述一种投影式数字焦度计 .方法 设计的焦度计主要由照明系统、准直系统、投影光学系统组成 .结果 摆脱了目镜系统 ,提高了测量精度 .由于不需要人眼紧贴目镜 ,故操作方便舒适 ,不易疲劳 .结论 实验证明 :所设计的焦度计具有较高测量精度
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| 关 键 词： | 焦度计 顶焦度 屈光度 测量误差 |
| 文章编号： | 1008-6374(2000)02-0104-05 |
| 修稿时间： | 2000年4月4日 |
A Projective Digital Lensometer |
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| YAN Jie ,ZHAO Jun qi ,ZHU Lin quan.A Projective Digital Lensometer[J].Journal of Test and Measurement Techol,2000,14(2):131-135. |
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| Authors: | YAN Jie ZHAO Jun qi ZHU Lin quan |
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| Affiliation: | YAN Jie 1,ZHAO Jun qi 1,ZHU Lin quan 2 |
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| Abstract: | Aim A projective digital lensometer is presented. Methods The designed lensometer primarily consists of light system, collimating system and projective system. Results Measurement accuracy of the lensometer is improved due to the omission of eyepiece. In addition, the omission of eyepiece optics makes the lensometer convenient to be operated. Conclusion The paper describes the principle of measurement, and the structure of the lensometer, finally analyzes the measurement errors. Experiments show that the designed lensometer is in high measurement accuracy. |
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| Keywords: | lensometer vertex power dioptric power measuring error |
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