Architectural luminaries

US6113252A · kind A · utility

Assignee

• Vari-Lite, Inc. · US

Inventors

• Mark Arlitt · Austin, US
• William Luetkemeyer · Azle, US
• Matthew B. Johnson · Dallas, US
• Bryan S. McNatt · Plano, US
• Mark S. Richards · Laconia, US
• Richard K. Steele · Lewisville, US

Key dates

• Filing date: Feb 17, 1998
• Grant date: Sep 5, 2000
• Expiry date: Feb 17, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21W2131/406
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Architectural luminaries utilize a common optical engine having a lamp coupled to an ellipsoidal reflector, a field stop aperture, and image-projecting lenses A color wheel, gobo wheel, and mechanical dimmer may also be included. A microlens element converts a spotlight optical engine into a wash light optical system. A multiple lens array provides variable diffusion. The optical engine is combined with an X-Y scanning mirror beam direction system in a substantially recessed housing for mounting in the ceiling of a building. The optical engine is combined with a pan-and-tilt yoke for greater range of coverage with an exposed luminaire.