The idea is to create an optical illusion to make it look like the box is empty.
男被访者这个创意是使人产生视觉幻觉，看起来这个盒子像是空的。
2
Project, the author is responsible for optical design of the lens, structure, electronic box circuit, software and hardware design of the laser power-tester.
在本文中，作者负责激光功率计的镜头光学设计、结构设计，电子箱电路软硬件设计工作。
3
It is discussed to apply the optical filter technology to solve the problem that direct sunlight causes hot box misreporting.