静的機能窓法を用いた量産工場での品質改善

(蛍光ランプの光束改善)

抄録

In mass production plants, there are many daily quality problems to be solved. For this purpose, it is desirable to conduct orthogonal array experimentation. But some quality items cannot be measured using the existing devices. Also there are no production lines available to make the products for testing. Under such situations, the static operating window method was successfully applied to solve the insufficient flux problem.

Flux(brightness) increases when the fluorescent material film thickness increases. But as the film thickness increases, the adhesion force between glass and film decreases, and it makes the film easier to peel off. The generic function of fluorescent lamps should be evaluated based on the relationship between power and flux. Data should be collected at different measured locations as a noise factor. But the study was not so conducted because the measuring device was not available.

In this study, static operating window was used to improve the two characteristics which behave against each other when the film thickness changes.