Discussion on "Scientific lighting in modern industry" at the Coventry Section of the Institution

MR. ROWTON : In the case of correcting light by having a general lighting scheme of mercury discharge lamps and an auxiliary scheme of incandescent light, would you not get a condition where the eyes are affected ? MR. HOWELL : I can only say that if you mixed the colour before it catches the object at which you are looking there would be no unpleasant or harmful effect on the eyes. As a general rule, we would suggest you mixed at the light source rather.than run the risk of getting that trouble.