Characteristics and Design Updates
– Ellipsoidal reflector
– Adjustable lens tube for focus changes
– Plano-Convex lenses for beam width
– Brackets for accessories like gel frames
– Shutter system for precise shaping and sizing
– Source Four improved luminous output with less wattage
– Single lens train for lighter and more efficient unit
– Rotating barrel for increased precision and gobo registration
– Selecon Pacific with integrated dichroic cold mirror for heat dissipation
– Altman Lighting’s Shakespeare line with wider barrel rotation range
Brands and Terminology
– Leko and Source Four are brand names for ellipsoidal reflector spotlights
– ERS is the abbreviation for ellipsoidal reflector spotlights
– Profile Spotlights is another term for ERS, especially in Europe
– ERS can shape the beam to the profile of an object
– Barn doors provide a softer edge to the beam
LED Technology
– LED technology has been introduced to ERS applications
– LED ERS fixtures offer energy savings and no maintenance
– Coemar launched Reflection LEDko, a LED ERS, in 2011
– Philips Strand Lighting released the Lekolite ERS with improved optics and heat dissipation
– LED ERS is suitable for acoustic critical applications
Stage Lighting and Lighting Instruments
– Stage lighting is an essential element in theatrical productions
– Different types of lighting fixtures are used, such as spotlights and floodlights
– Lighting can be controlled to change colors, intensity, and direction
– Lighting design plays a crucial role in enhancing the overall visual experience
– Stage lighting instruments are devices used to create and control light on stage
– Common types include ellipsoidal reflector spotlights, fresnels, and PAR cans
– These instruments have different beam angles and throw distances
– They can be equipped with various accessories like gels and gobos
– Lighting instruments are mounted on lighting trusses or stands for positioning
Lighting Design and Lighting Designer
– A lighting designer is responsible for creating the lighting concept for a production
– They work closely with the director and other designers to achieve the desired visual effects
– Lighting designers use their knowledge of color theory and technical skills to enhance the storytelling
– They create lighting plots and cues, specifying the timing and intensity of each lighting change
– Collaboration with the lighting crew is crucial for the successful execution of the design
References:
– J. Michael Gillette authored ‘Designing With Light: An Introduction to Stage Lighting, Fourth Edition’
– The book provides a comprehensive introduction to stage lighting techniques
– Another publication by Gillette is ‘Theatrical Design and Production: An Introduction to Scene Design and Construction, Lighting, Sound, Costume, and Makeup’
– These books serve as valuable resources for aspiring lighting designers
– McGraw Hill is the publisher of both books, which are widely used in the industry Source: https://en.wikipedia.org/wiki/Ellipsoidal_reflector_spotlight
Ellipsoidal reflector spot (abbreviated to ERS, or colloquially ellipsoidal or ellipse) is the name for a type of stage lighting instrument, named for the ellipsoidal reflector used to collect and direct the light through a barrel that contains a lens or lens train. The optics of an ERS instrument are roughly similar to those of a 35 mm slide projector.
There are many types of ERS that are designed for the myriad applications found in the entertainment industry. ERS instruments come in all shapes and sizes. Each particular model of ERS has its own set of characteristics. Generally, ERS instruments are the most varied and utilized type of stage lighting instrument. ERS may also be referred to as Profile Spotlights (especially in Europe) because the beam can be shaped to the profile of an object.
Ellipsoidal reflectors are used for their strong, well-defined light and their versatility. Leko and Source Four are brand names which are often, but inaccurately, used to refer to any sort of ellipsoidal.
