Who invented the ellipsoidal light?
The nickname is a combination of the last names of James Levy and Edward Kook, who invented this style of stage light in the 1930s.
What is an ellipsoidal stage light?
Ellipsoidals are stage lighting fixtures named for the ellipsoidal reflector that is used to collect and direct the light through a lens barrel. Ellipsoidal lights come in LED, HID or traditionally Tungsten Halogen.
What is unique about an ellipsoidal reflector?
These reflectors have two conjugate foci. Light from one focus passes through the other, after reflection. Ellipsoids collect a much higher fraction of total emitted light than a spherical mirror or conventional lens system.
When was the Leko invented?
The Leko was invented in about 1928 or 1933 depending on which side of the Atlantic you were on. In 1928 Strand applied for a patent for the Stelmar ellipsoidal spot which was for a 1K and 500 watt ellipsoidal profile spot. Also in 1932 Century developed a Leko and 1933 Kliegl Bros.
What is the meaning of ellipsoidal?
Definitions of ellipsoidal. adjective. having the nature or shape of an ellipsoid. synonyms: ellipsoid, spheroidal rounded. curving and somewhat round in shape rather than jagged.
What is the biggest advantage of an ellipsoidal reflector spotlight?
Ellipsoidals are good for gobo projection, and highlighting actors or scenery on stage. They can also be used to god-spot actors by placing them at a sharp (5° – 10°) angle. This gives the effect of divine intervention, or, if used with a green gel, alien abduction.
What does running the barrel on a Leko do?
It is a device that helps create even harder shadows out of a Leko light. It slides in the front of the lens barrel and helps define the beam better out of the light and eliminates the wall, the person, or the bounce card from seeing the whole face of the lit lens barrel.
What is a Fresnel in Theatre?
FRESNEL. The Fresnel is a soft-edged spotlight that offers more control over the angle of the beam than a flood light. … In most productions, a Fresnel is used at medium throw distances (the distance from lens to stage) as a top or back light.