Optical design of a refractometer with the liquid prism

Guirong Jiang; Jing Wan; Zhian Lu; Weiqi Dou; Cheng Wang; Yu Lu

doi:10.1117/12.2505408

15 November 2018 Optical design of a refractometer with the liquid prism

Guirong Jiang, Jing Wan, Zhian Lu, Weiqi Dou, Cheng Wang, Yu Lu

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109641P (2018) https://doi.org/10.1117/12.2505408
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

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%.

Citation Download Citation

Guirong Jiang, Jing Wan, Zhian Lu, Weiqi Dou, Cheng Wang, and Yu Lu "Optical design of a refractometer with the liquid prism", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109641P (15 November 2018); https://doi.org/10.1117/12.2505408

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