Then it introduces a new method to test luminaire efficiency, and point out it should be called luminaire lightoutputratio according to the present test method.
文中给出了一种真正衡量灯具效率的方法，并指出按目前测试方法得到的比值应该称为灯具光输出比。
2
General expressions of intensity ratio of light in ring and output port were deduced according to multiple-beam interference, and optimum resonance condition was given.
从多光束干涉的基本原理出发，推导了集成光波导陀螺谐振腔一般谐振过程中，谐振环光强和输出光强表达式。
3
The second system is tunable laser light source based on semiconductor optical amplifier(SOA), lightoutput power and signal-to-noise ratio are improved effectively;