TY - JOUR
AU - Stanley, J. F.
AB - By J. F. STANLEY (Member) (Pa/>er read on March II. /94/). At the outbreak of war the first edition of the lamp mask was virtually enforced. It could be fitted Lighting (Restrictions) Order was issued, and in the to either the near-side or off-side headlamp, and the design was such that the light is emitted in a re­ section dealing with the lights carried by road vehicles the use of headlamps on motor cars was stricted angle in the vertical sense. With a 36-watt virtually prohibited since no lamps of a power ex­ lamp the maximum intensity obtained is about ceeding 7 watts were allowed. A few days later a 100 candles, but in some masks this is as high as 150 or 250 candles. When properly adjusted the direc­ statement was made that it had been decided to relax tion of the beam of maximum intensity is about the restrictions on the use of headlamps and that a 6 deg. below the horizontal. new Order would shortly be issued. In the meantime The illumination of the road surface is shown in the use of headlamps would be allowed, provided Fig. 1 (Curve B). It will be seen that 
TI - Motor Car Wartime Headlamp Masks
JF - Lighting Research & Technology
DO - 10.1177/147715354100600109
DA - 1941-01-01
UR - https://www.deepdyve.com/lp/sage/motor-car-wartime-headlamp-masks-6qRtZUvs2a
SP - 99
EP - 104
VL - 6
IS - 1-10_IEStrans
DP - DeepDyve
ER -