Overview

The Chroma 58173, in automatic operation, comes with unique design and a whole new method for LED total power measurement. In bare wafer/chip LED test production, partial flux correction of total flux is the common measurement method in LED epitaxy industry. (See Figure 3 on flip page) However, conventional method causes some disadvantages, i.e., lower accuracy, low S/N ratio, and slow test time etc., and which are difficult to be applied on LED bar wafer/chip total power/flux test production.