FIG. 6. Spectrophotometric charts of the effect of full illumination of spherical reflector. fresnel lens. 500 w .* 6" spotlights (SF. 56) on fifteen selected color media. In all cases the measurements were taken for 27 hours at three hour intervals. (However. the interval when the last noticeable change occurred which could be recorded without an overlap confusion is also the last one recorded.) 6.1 Brigham gelatine No. 57 Light amber 6.2 Roseo gelatine No. 214 Medium amber 6.3 Roseoline No. 815 Golden amber rIa- t.1 _n_1'... IV I--+----l--+t--+--t - - / _-+ - 1--+--1--++-: \ /I // II .I-t\!-+--I-H-+-+--+-~i 0"\ 111/1 ~"\ 6.7 Roseo gelatine No. 242 Special lavender If! "J -.. ~.;; 6.9 Cinabex No. 36 Pale lavender 6.8 Roseoline No. 842 Special lavender .en n.\. II . lirl'\ , v ~\\ n ~I I I II II \\ \ \ , r l\ 1\\ \\ 1\ \ \ I--+-l--++-t. - - \" 0.\ \ , , ~\ II \\ \\ \' / ..... \ ,_1_..,... 1.. I ... ! _~ 6.13 Roseoline No. 863 Medium blue 6.14 Cinabex No. 19 Dark blue 6.15 Cinemoid No. 19 Dark blue 1--+--1--+-:--+ --r-/ 1/ \ I' . '/ n rr\i \ /1 ); ~, /I 1/ II" eO THEATRE DESIGN & TECHNOLOGY Iusm I MAY 1967 19