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Optical design of a refractometer with the liquid prism
Author(s): Guirong Jiang; Jing Wan; Zhian Lu; Weiqi Dou; Cheng Wang; Yu Lu
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Paper Abstract

Here a refractometer with the liquid prism is proposed. It has a simple structure, low cost and a large measurable refractive index range. When the vertex angle of liquid prism is 30°, the measurable refractive index range is up to 1.00-3.86, while the common refractometers have only the measurable range of 1.30-1.70. The optical system of this refractometer is design, where the angle of field is 80° and the total length is 110mm. A linear array CCD is used as the image receiver. The design results show that MTF is 0.35 in the tangential surface and 0.55 in the sagittal surface at the Nyquist frequency of 70lp/mm and the full field. The MTF values of other fields are more than 0.6, and the maximum distortion is 0.37%.

Paper Details

Date Published: 15 November 2018
PDF: 6 pages
Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109641P (15 November 2018); doi: 10.1117/12.2505408
Show Author Affiliations
Guirong Jiang, Nanjing Univ. of Posts and Telecommunications (China)
Jing Wan, Nanjing Univ. of Posts and Telecommunications (China)
Zhian Lu, Nanjing Univ. of Posts and Telecommunications (China)
Weiqi Dou, Nanjing Univ. of Posts and Telecommunications (China)
Cheng Wang, Nanjing Univ. of Posts and Telecommunications (China)
Yu Lu, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10964:
Tenth International Conference on Information Optics and Photonics
Yue Yang, Editor(s)

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