@inproceedings{33b94434b2ad45228e314a04c15f6fcf,
title = "Integration design of rigid endoscope with different viewing angles",
abstract = "High definition and magnification rigid endoscope is a significant equipment in the examination and surgery. In this paper, the design of a high definition (HD) rigid endoscope is presented with a FOV of 70°. The entrance pupil is 0.3 mm, achieved for the first time to our best knowledge. For the fabricated prototype, the theoretical resolution is 22.3 lp/mm at an object distance of 20 mm, the depth of field (DOF) is 115 mm and the stray light is eliminated effectively. The viewing angle of the developed endoscope is zero. However, the endoscope with non-zero viewing angle is more popular in some conditions, we present two designs with non-zero viewing direction for better observation and diagnosis of lesions on inner walls of organs and tissues. In this paper, we present two designs with non-zero viewing direction for better applications.",
keywords = "Optical design, depth of field, high definition, rigid endoscope, stray light",
author = "Lingyun Zhang and Dewen Cheng and Yongtian Wang",
note = "Publisher Copyright: Copyright {\textcopyright} 2015 SPIE.; Conference on Current Developments in Lens Design and Optical Engineering XVI ; Conference date: 10-08-2015 Through 11-08-2015",
year = "2015",
doi = "10.1117/12.2190711",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Mahajan, {Virendra N.} and Simon Thibault and Mahajan, {Virendra N.} and Simon Thibault and Johnson, {R. Barry} and Johnson, {R. Barry}",
booktitle = "Current Developments in Lens Design and Optical Engineering XVI",
address = "United States",
}