University of Tehran, Faculty of Theology and Islamic Studies Iranian Journal for the History of Islamic Civilization 2228-7906 46 2 2014 02 20 Ghulām Ḥusayn Junpūrī’s Principles of Optics Ghulām Ḥusayn Junpūrī’s Principles of Optics 237 257 63776 10.22059/jhic.2017.237268.653786 FA Iraj Nikseresht Assistant Professor Naaem Sherafat university of Imam Khomeini Journal Article 2017 07 16 The present article discusses and criticizes the chapter two of <em>Bahādurkkhānī’s Jāmī‘</em> on optics. The basic question is the extent to which this book is influenced by old book of optics. The main hypothesis is that despite all scientific advances in new optics, <em>Bahādurkkhānī’s Jāmī‘</em> still relies on optics of ancient Greece and his Islamic era and does not step beyond Euclidean mathematics. According to his references to geometric relationships and the last astronomical discoveries we can say that Bahādurkkhānī probably was aware of the latest advances in new geometric optics. As a result, optics and mathematics had a strong geometric aspect in the India of 19^th century without deep philosophical aspects. The present article discusses and criticizes the chapter two of <em>Bahādurkkhānī’s Jāmī‘</em> on optics. The basic question is the extent to which this book is influenced by old book of optics. The main hypothesis is that despite all scientific advances in new optics, <em>Bahādurkkhānī’s Jāmī‘</em> still relies on optics of ancient Greece and his Islamic era and does not step beyond Euclidean mathematics. According to his references to geometric relationships and the last astronomical discoveries we can say that Bahādurkkhānī probably was aware of the latest advances in new geometric optics. As a result, optics and mathematics had a strong geometric aspect in the India of 19^th century without deep philosophical aspects. https://jhic.ut.ac.ir/article_63776_6550b0d9b74e03c965322672e96428c6.pdf