中国古代视觉理论探索

中国古人对视觉理论有过内容丰富的探讨。在对视觉形成机制的认识上,古人大都认为眼睛本身不能发光,它只有在接收到外光时才能见物,但也确有一些学者主张眼睛本身可以向外发射光线。古人还对视觉的局限性做过深入的分析,讨论了导致出现视觉局限性的主客观各种因素。他们用视觉局限性理论解释了一些重要科学问题,推进了相应学科的发展。他们对形成视觉局限性的物理机制的探讨,导致光行曲线学说和测不准观念的诞生。

Exploration of the Vision Theory in Ancient China

There were plenty of explorations of the vision theory in ancient China.Most ancient Chinese believed since the eye itself was not luminous,it could see things only when receiving external light.Some scholars,however,thought the eye itself could give light out so it could see things without the help of external light.The limitation of vision had also been discussed in ancient China.The ancient Chinese analyzed subjective and objective factors that brought about the limitation of vision.They applied the vision limitation theory to explain some important scientific problems,and in turn promoted the development of some scientific branches.They explored the mechanism of the formation of vision limitation from the view point of physics,which resulted in the emergence of the theory of light traveling in a curved path and the concept of indeterminacy of measurement.