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| 准直离焦法测量短焦透镜的焦距 |
| Measuring the Focal Length of a Lens by Moire Deflectometry with Collimating-defocusing |
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| DOI: |
| 中文关键词: 准直,离焦,莫尔偏转术 |
| 英文关键词:Collimating, Deigcusing, Moire deflectometry |
| 基金项目: |
| 吴长发 廖兆曙 |
| 华中理工大学光学系,华中理工大学光学系,华中理工大学光学系 430074 武汉,430074 武汉,430074 武汉 |
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| 中文摘要: |
| 首先分析了常规Moire偏转术测量透镜焦距的局限,提出了用准直离焦与Moire偏转术相结合的方法测量短焦透镜的焦距,给出了两组透镜的测试计算结果,讨论了测量方法的原理性误差。 |
| 英文摘要: |
| In this paper we have approched how to modulate a wavefront by collimating-defocusing so as to reduce the deflecting effect of the rays and measure the focal length of a lens with short focal length in Moire deflectometry. |
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