752 



ENERGY AND VISION 



fe 100 



o 



Pu 



80 



60 



40 



20 







A- — ^ t ~ ^ • I ^ ' I i 



Xo.3 0.4 0.5 0.6 0.1 OB 0.9 1.0 1.5 



Fig. 1. Reflection of monochromatic light by gold. 



2.0/UL 



C 



Q 

 O 



cs 



r-t 

 <1 



•d 



8 



G) 4 



o 



? 



I— < 



(0 



o 



' 



.0 



X 0.5 1 



4 



8 



/" 



Fig. 2. Energy distribution curves for Nernst lamp, corrected and uncor- 

 rected for mirror absorption. Outside curve corrected; inside curve uncorrected. 



