Iran Optics and Photonics and Photonics Engineering and Technology Conference is held annually at Iranian universities by the initiative of Iran Optics and Photonics Association and with the cooperation of more than two hundred and fifty industrial, academic and scientific and research institutes inside the country. Every year, a large number of researchers, specialists and experts in the relevant fields are invited to submit their research articles that contain new findings in the conference's subject areas through the conference website. The goals of this conference are to acquaint specialists and researchers of the country's universities and research and industrial centers with each other's activities, exchange information and establish communication between artisans and researchers, learn about the latest scientific and technological achievements in various fields of optics and photonics in the country, and organize specialized roundtables. The best articles are introduced to the International Scientific-Research Journal of Optics and Photonics for publication.