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1950-51 Theatre Catalog, 9th Edition, Page 365 (343)

1950-51 Theatre Catalog, 9th Edition
1950-51 Theatre Catalog
1950-51 Theatre Catalog, 9th Edition, Page 365
Page 365

1950-51 Theatre Catalog, 9th Edition, Page 365







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Type Maximum Maximum Maximum Screen W'idth . Recommended Arc Screen with 9 Ft. Lambert: 0! Type of carban 5'" Arc Current Volts Lumens at Canterm Lamp Amperes 90o Shutter 75% Screen Reerctivity High Intensity Positive 13.6 mm x 22 in. 150 78 9750 38.2 Condenser iiOrotipi, Cored Negative x 9 in. Type iiHitexi, Super High-Intensity Positive 13.6 mm x 22 in. 180 74 12,400 43.2 Heavy duty "Orotip" Negative 1/3 x 9 in. Simplified Suprex Cored Positive 7 mm x 12 or 14 in. 50 37 5000 27.2 High Suprex Cored Negative 6 mm x 9 in. Intensity Suprex Cored Positive 3 mm x 12 or 14 in. Suprex Cored Negative 7 mm x 9 in. 70 40 7000 31.6 iione s c d P ' v 7 12 14' 4o 2* ' 32-0 219 Kilowan D C uprex ore osttne mm x .or m. to a . Arcs, ' ' iiOrotipi, C. Negative 6 mm x 9 1n.

* (All data based on use of F / 2.0 treated projection lenses) The terms 2Nationalli, itHitexii and ItOrotip', are trade-marks of National Carbon Division


Union Carbide and Carbon Corporation

30 East 42nd Street. New York 17. N. Y.

DISTRICT SALES OFFICES Atlanta-Chicago-DaHas-Kansas City-New York Pittsburgh-San 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. H

A further advantage of the high intensity are for projection is the snow white quality of its light. Light from the low intensity are 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. 1950-51 THEATRE CATALOG


From the standpoint of the small theatre, the 4iOne 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. No theatre will be a

modern theatre without high intensity projection.

The iiOne Kilowattli 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 anv theatre, regardless of size.

To [uz'i/i/a/e inquiry re t/w abate, [71mm mention the raltmle and page mun/Mr.
1950-51 Theatre Catalog, 9th Edition, Page 365