Membership notes

1916 Journal of the Franklin Institute  
Dec., i916.] MEMBERSHIP NOTES. • I 5 stated that criteria for proper lighting rest ultimately with the performance of the eye itself; that is, upon the ease, comfort and precision with which the eye functions. The eye adapts itself to certain lighting conditions with extreme facility, to others with great difficulty or not at all. Data on visual sensibility, efficiency and tolerance were reviewed. From these are deduced the principles governing visually efficient lighting at each of the four
more » ... each of the four lighting levels with which we are concerned. Ideal lighting was described and finally applications to practical lighting were outlined.
doi:10.1016/s0016-0032(16)90080-2 fatcat:g636wkl2tfhntljg3f3ig5e4e4