| has gloss | eng: Ellipsoidal reflector spotlight (abbreviated to ERS, or colloquially ellipsoidal, ellipse or leko) is the name for a type of stage lighting instrument, named for the ellipsoidal reflector used to collect & direct the light through a barrel that contains a lens or lens train lens. 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 of 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 may occasionally be used to refer to any sort of ellipsoidal. |
