基于反射式平行光管法的紫外透镜焦距测试研究

邓佳逸; 常伟军; 王楠茜; 邱亚峰

基于反射式平行光管法的紫外透镜焦距测试研究

1.
南京理工大学机械工程学院，江苏南京 210094
2.
西安应用光学研究所，陕西西安 710065

详细信息

作者简介:
邓佳逸（1995-），男，江苏无锡人，硕士研究生，主要研究方向为电子科学与技术。E-mail：583003374@qq.com

通讯作者:
邱亚峰（1966-），男，副教授，博士，主要研究方向为光电子物理与技术。E-mail：njlghcn@sina.com

中图分类号: TN202
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- 被引次数: 0
出版历程
- 收稿日期: 2020-07-09
- 修回日期: 2020-07-15
- 刊出日期: 2021-10-20

Focal Length Measurement of Ultraviolet Lens

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
2.
Xi'an Institute of Applied Optics, Xi'an 710065, China

摘要

摘要: 光学透镜是光学仪器中最基本的器件，而焦距又是光学透镜最重要的特性参数，如何精确测量透镜的焦距一直以来都是研究重点，然而目前鲜有针对紫外透镜焦距测试的研究。本文结合紫外透镜的特点，对一种基于反射式平行光管的紫外透镜焦距测试方法进行了研究，并以此设计出了一套紫外镜头焦距测量系统，同时选用了不同焦距的紫外镜头进行了实验，最后对系统进行了误差分析。实验结果表明，该测量系统可以对紫外镜头焦距进行高精度测量，25 mm镜头的测量误差为2.041%，100 mm镜头的测量误差为0.934%，验证了测量系统的准确性。
- 紫外镜头 /
- 焦距测量 /
- 反射式平行光管法
Abstract: Optical lenses are the most basic components in optical instruments; focal length of the optical lens is the most important characteristic parameter, and accurate measurement of the focal length of the optical lens has long been a research focus. However, few studies have been conducted on the UV lens focal length measurement. In this study, a method for measuring the focal length of an ultraviolet lens based on a reflective collimator is investigated, according to the characteristics of the ultraviolet lens, and a few UV lens focal length measurement systems were designed. Different UV lenses were studied, and the focal length of the system was chosen for the measurement error analysis. The experimental results show that the measurement system can measure the focal length of the UV lens with high precision, i.e., the measurement error of 25-mm lens is 2.041%, that of 100-mm lens is 0.934%, which verifies the accuracy of the measuring system.
- ultraviolet lens /
- focal length measurement /
- reflective collimator method

HTML全文

图 1 反射式平行光管的光路图

Figure 1. The optical path diagram of the reflective collimator

下载: 全尺寸图片幻灯片

图 2 焦距测试系统的光学结构图

Figure 2. Optical structure diagram of focal length measuring system

下载: 全尺寸图片幻灯片

图 3 玻罗板刻线间距与被测光学焦距的关系图

Figure 3. The relationship between the cut line spacing and the focal length of the photometry

下载: 全尺寸图片幻灯片

图 4 玻罗板设计和实物图

下载: 全尺寸图片幻灯片

图 5 靶像测量装置

1. 紫外像增强器；2. 读数显微镜；3. 三维调节机构

Figure 5. Measurement device

1. UV image intensifier; 2. Reading microscope; 3. Three dimensional adjusting device

下载: 全尺寸图片幻灯片

图 6 测试系统实物图

1.紫外光源；2.反射式平行光管；3.靶像测量装置；4.被测镜头

Figure 6. Test system

1. Ultraviolet light source; 2. Reflective collimator; 3. Target image measuring device; 4. Lens to be measured

下载: 全尺寸图片幻灯片

表 1 25 mm焦距测试数据记录

Table 1. 25 mm focal length test data recording mm

	First	Second	Third	Fourth	Fifth	Sixth	Seventh	Average focal length	Standard deviation
First pair	0.02	0.03	0.03	0.03	0.02	0.02	0.02	26	0.0048
Second pair	0.05	0.04	0.06	0.04	0.07	0.06	0.05	26	0.0116
Third pair	0.09	0.12	0.10	0.10	0.11	0.11	0.09	26	0.0101
Fourth pair	0.25	0.27	0.24	0.26	0.25	0.24	0.26	25.4	0.0102
Fifth pair	0.51	0.50	0.48	0.49	0.50	0.50	0.49	24.8	0.0102

下载: 导出CSV

表 2 100 mm焦距测试数据记录

Table 2. 100 mm focal length test data recording mm

	First	Second	Third	Fourth	Fifth	Sixth	Seventh	Average focal length	Standard deviation
First pair	0.09	0.1	0.1	0.11	0.11	0.09	0.11	102	0.0074
Second pai	0.18	0.19	0.20	0.20	0.21	0.19	0.19	98	0.0102
Third pair	0.39	0.41	0.40	0.40	0.41	0.40	0.41	101	0.0075
Fourth pair	1.01	1.02	0.98	0.99	1.01	0.99	1.01	100.2	0.0147
Fifth pair	2.02	2.01	2.02	1.99	1.98	2.00	1.99	100.2	0.0162

下载: 导出CSV

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