The second exhibition hall named "THE HISTORY OF LIGHT" covers an area of 1035 square meters and the main color of the environment is blue with the splendid star rivers up on the ceiling and a long scroll of history show underneath it, showing that people from home and abroad in both ancient and modern time are eager for knowing more about light. It seems that these optical accomplishments make visitors go through the vast space time to feel a long history of the millennium splendor .
1. 光之成就
The achievements of optics
展示中国古代最具代表性的天文仪器及建筑：圭表、日晷、浑天仪、简仪、仰仪、观星台等，巧妙地利用了光学原理，凝结着中国古代人民智慧的结晶。
It shows the most representative astronomical instruments and architectures in ancient China such as ancient Chinese sundial, sundial, armillary sphere, abridged armilla, scaphe and the star observation platform and so on. These instruments and architectures based on the optical principles represent the wisdom of ancient Chinese people. 
2. 国外早期光学
The early optics abroad
艺术造型的灯箱与图文，记载了世界史上光学大事记及国外光学名家的事迹，呈现了不同时期国外光学发展进程及学术各派的学说之争。
The artistic light boxes and graphic text recorded events concerned optics in the world history and the great deeds of the famous opticists abroad, presenting the optics development process in different periods and the ideas of different academic factions.
3. 中国早期光学
Early optics in China
光学的历史宛如长河，展项以长河般的电子长卷形式，绘制出中国早期光学的璀璨画卷，使参观者感受到中华文明的耀眼光华。
Optics has a very long history and the exhibition show the history in an electronic screen. The early optics in China showed a form of a painting makes visitors feel the splendor of Chinese civilization.
4. 照相机博物馆
The camera museum
陈列展示历代流入中国以及国产的照相机实物，展示了照相机发展的历史，结合国内外老照片的展示，使观众心生敬意，眷顾一路走来的光影世界。
The exhibition shows cameras imported into China in past dynasties and cameras made in China as well as the history of camera’s development. The old photos that across time and space indulge us into the respectable long history of optical world.

 Scanning into the second exhibition hall