About   |   Glossary   |   Site map   |   Help   |   Credits   |   Contact


The Profile–spot - Ellipsoidal

The profile-spot is probably the most popular type of theatrical luminaire. In America it is known as an ellipsoidal spot or ERS (ellipsoidal reflector spotlight).

Profile-spots were introduced in the USA and the UK at approximately the same time. Levy and Kook of New York developed a prototype of a profile-spot which they named Leko after the inventors. Lekolight has since become a generic name for profile spots. The  compact and efficient 110 volt lamps used in the USA, which made the Leko possible, gave America an edge over European luminaire manufacturers.
   
The Patt. 73 1000w Mirror Spot by Strand, 1935.


The Patt. 23 by Starnd
  pic136_04_450
Levy and Kook profile spot - Leko

Only in 1952, when the British G.E.C. started producing a new 500 W 220V tubular lamp was the compact Patt. 23 profile-spot introduced (4) . The name alluded to the price, which was at the time 9 pounds sterling and 23 pence. The Patt. 23 became the best selling luminaire in the world for many years.

Today a huge variety of profile-spots is available at a wide range of prices, from many manufacturers in all five continents.

Profile-spots are available in fixed angle or in variable lens (zoom) versions.
 

The d'Artagnan followspot by Juliat.

 



Optics and Mechanics of Profile-Spots
Fixed Angle Profile-Spots
Variable-Lens - Zoom Profile-Spots
Uses of Profile-Spots in the Theatre