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Leko Ellipsoidals

Strand Ellipsoidals

Strand Lighting offers the world's most comprehensive and competitive range of luminaires, dimming equipment, control systems and software to answer the creative needs of lighting designers working in theatre, television, film, themed environments and sophisticated architectural applications. Strand Lighting History The Strand Electric Company began operating in 1914 to serve London's theater district. In 1926 Century Lighting opened for business in New York to serve Broadway. Today, Strand Lighting, the union of these two companies, continues as the world's leading name in stage, television, motion picture, and architectural lighting and services. Current Strand Lighting Operations Unique in the breadth of its operations, Strand Lighting now serves the world across three geographic regions. The European region, headquartered in the United Kingdom, has offices in Berlin, London, Moscow, Paris, and Rome and serves all of Europe, the Middle East, and Africa. The Americas region has its headquarters in Los Angeles and with offices in New York and Toronto serving the United States, Canada and Latin America. The Asia/Pacific region is supported from Strand Lighting's office in Hong Kong. Each region works closely with its local network of distributors to ensure the most extensive distribution of products and services in the entertainment lighting industry. Strand Lighting Products As the creative demands of entertainment lighting continue to expand, Strand Lighting has responded with a series of new product introductions demonstrating a commitment to providing lighting solutions matched to the scale and complexity of the application: the latest generation of software based control products ensure that as users' needs grow and new facilities are added, systems can be easily expanded to accommodate them, protecting the value of the original investment. Our new digital dimming systems bring enhanced flexibility and superior performance and value to all of our customers and our exciting range of Film, Television and Theatrical luminaires are the newest and most advanced in the industry. From the simplest to the most advanced, for theatrical, television, film or themed environments solutions will be found for all your applications within this catalogue.

Amplitude - Amplitude is a nonnegative scalar measure of a wave's magnitude of oscillation, that is, magnitude of the maximum disturbance in the medium during one wave cycle.

Sometimes this distance . Used . is called the "peak amplitude", distinguishing it from another concept of amplitude, used especially in electrical engineering: the root mean square (RMS) amplitude, defined as the square roo. Used . t of the temporal mean of the square of the vertical distance of this graph from the horizontal axis. The use of peak amplitude is unambiguous for symmetric, periodic waves, like a sine wave, a square wave, or...

Discharge Lamp - A high powered light source produced by an arcing electrical discharge between two electrodes suspended in a glass tube filled with gas, usually high or low pressure sodium gas, xenon, mercury vapor, . Used . or metal halide. This type of illumination is limited to applications such as followspots and projection, where dimming is accomplished by mechanical instruments. Many newer generation mov. Used . ing lights use discharge lamps, dichroic filters and mechanical dimming shutters....

Controllers - A hoist or motor controller is a machine for raising and lowering personnel or gear by means of a cable for the purpose of setting the gear in place on a truss or stage.

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Working Lights - Stage or auditorium lights, independent of the main theatrical system, used during rehearsals and while the crew sets up or breaks down the stage. Also, low wattage lights used to illuminate offstage. Used . obstacles and props tables unseen by the audience.. Used . ...

Prime Lens - A lens whose focal length is fixed. Prime lenses are not as versatile as zoom lenses, but are generally superior in optical quality. This is due to the simplisity of design with fewer moving parts th. Used . at can be optimized for one specific focal length. . Used . ...

Ellipsoidals

Ellipsoidals is the colloquial term for a stage lighting instrument called the ERS (Ellipsoidal Reflector Spotlight), Profile Spotlight or Profile Spot. Other colloquial terms for the same device are Shakespeare or Leko, which is actually a brand name. Ellipsoidals are so named based on the shape of the reflector that they possess. The ellipsoidal contours capture and focus light through a cylinder containing a lens train or lens. Ellipsoidals are of different types and come in various sizes and shapes, each having its own particular qualities. Possessing optics with similar characteristics to a typical 35 mm slide projector, they are designed for a large variety of uses in the entertainment sector. They are also the most used among all types of stage lighting devices. They are called Profile Spotlights because the beams can be customized to readily take the shape of the object’s profile. Ellipsoidals are primarily required for more intense, clearly-outlined lighting requirements that offer greater flexibility. Source Four is yet another brand name for this type of lighting instrument. Normally, an ellipsoidal lighting unit has: an adjustable lens tube enclosing the lens or lens train; an ellipsoidal reflector; one or two Plano-convex or PC lenses; a set of bracing elements for holding the gel frames; two pairs of shutters mounted on an internally-located focal point; a metal gobo slot. The lamps in ellipsoidals are mostly rear-loaded, and either axially- or radially-mounted, with the base oriented up or down. Using the light wrong side up will result to a shorter lifespan.