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1947-48 Theatre Catalog, 6th Edition, Page 402 (388)

1947-48 Theatre Catalog, 6th Edition
1947-48 Theatre Catalog
1947-48 Theatre Catalog, 6th Edition, Page 402
Page 402

1947-48 Theatre Catalog, 6th Edition, Page 402




FOR EVERY TYPE OF PROJECTION LAMP Sold through Authorized Distributors


Typl ' Maximum Maximum Maximum Screen Width I Recommended Arc Screen with 9 Ft. Lambert; 0f Type of carbon Arc Current Vans Lumens at CenterLamp Ampere! 90o Shutter 750/0 Screen Reflectivity High Intensity, White Flame Positive 13.6 mm x 22 in. 150 78 9750 38.2 Condenser ttOrotipii Cored Negative 1/2 x 9 in. Type Super High Intensity, White Flame P05. 13.6 mm x 22 in. 170 75 10750 40.5 Heavy Duty iiOrotipi7 1/2 x 9 in. I . Suprex Cored Positive 7 mm x 12 or 14in. 50 37 5000 27.2 Slmghfied Suprex Cored Negative 6 mm x 9 in. H1313 Suprex Cored Positive 8 mm x 12 or 14 in. [mensny Suprex Cored Negative 7 mm x 9 in. 70 40 7000 31.6 ftOne Suprex Cored Positive 7 mm x 12 or 14 in. 40 27.5 3250 21.9 Emit" D'C' iiOrotip" C. Negative 6 mm x 9 in.

{*(All data based on use of F/2.0 treated projection lenses} The terms i"Nationali, and 4CUrotipii are trade-marks of National Carbon Company, Inc.


Unit of Union Carbide and Carbon Corporation


30 East 42nd Street, New York I7, N. Y.

DIVISION SALES OFFICES AtIanta-ChicagPDaIIas-Kansos CitysNew York PimburgheSan Francisco


The history of screen lighting, even from the beginning, has been one move after another to obtain more and better light. High intensity projection has always produced enthusiastic response from theatre patrons, since they notice and show favorable reaction to the improvement resulting from installation of this type equipment.

High intensity lamps provide a greater volume of screen light than the older low intensity lamps. This allows a clear cut screen image to be shown in the presence of a safe and comfortable level of general illumination. Patrons entering the auditorium from the lobby find their seats without discomfort or embarrassment, while the lighter contrast between the screen and surrounding illumination adds to visual comfort in viewing the picture.

A further advantage of the high intensity arc for projection is the snow white quality of its light. Light from the low intensity arc is comparatively dull and yellowish. This distorts the hues of color features and detracts from the impression of realism which color is designed to create, High intensity projection reproduces all colors with great fidelity and gives a realistic quality to color features not otherwise obtained.

Tn furili/ulv inquiry I(' Mr ubnro, plt'asr' mz'nziun f/u' xrnlume um] prng number.


From the standpoint of the small theatre, the scOne Kilowattf, carbon arc ranks among the most important advances in the art of motion picture projection. It enables the smallest theatre, at little or no increase in operating cost, to have the advantages of snow white projection light and the recommended level of illumination on the screen. It removes the edge enjoyed by those theatres having the more expensive types of high intensity lamps.

One of the most important objectives in preparing for future business is improvement in the quality and quantity of screen illumination, especially since increased production in color films is expected. N0 theatre will be a

modern theatrc without high intensity projection.

The icOne Kilowattii arc, without increasing operating cost, now allows the small theatre to give its patrons 50 to 80 per cent more screen light, more realistic color reproduction, and a quality of picture presentation un surpassed by any theatre, regardless of size.

1947-48 Theatre Catalog, 6th Edition, Page 402