Introduction to Opus Luminaire Concept

Opus presents a new luminaire concept featuring innovative transferral lighting technology. It combines a pure, timeless design with advanced light distribution methods to create harmonious and efficient lighting solutions suitable for various architectural environments.

Design and Aesthetic Features

The Opus luminaire is characterized by a minimalist and elegant design based on the universal shape of the circle, which fosters spatial harmony and reference points. Its ultraflat diffuser with minimal diameter creates a floating effect in space. The rectangular arrangement of the luminaire head relative to the stand or holder gives it a distinctive appearance. The lighting distribution is a balanced mix of direct and indirect light, meeting modern lighting and interior design requirements.

Innovative Lighting Technology

Opus uses a nearly invisible light source with minimized luminance, making the light-emitting element lose its physical form. The transferral lighting technology directs light entering sideways into the acrylic glass disk downward invisibly. This is achieved through a specially manufactured acrylic plate with silk-screen printed phase-optical grooves of varying widths and spacings. This element ensures glare-free, balanced, and regular direct/indirect light distribution.

Modular and Versatile Product Range

Opus offers a modular system with 1-, 2-, and 3-fluorescent tube configurations for freestanding, ceiling, pendant, and wall-mounted luminaires. Wall luminaires come in horizontal and vertical versions, with the vertical model projecting only 73 mm, making it suitable for offices, hotel receptions, call centers, entrance halls, banquet rooms, home offices, and residential areas. The energy consumption is moderate at 55 Watts per tube, and all products comply with European and international standards.

Technical Specifications and Variants

• Light Source: T5 Circline fluorescent tubes, 55 Watts each.
• Light Emission: Indirect/direct or vertical light emission depending on model.
• Materials: Luminaire heads made of die-cast aluminum; light directing elements made of acrylic glass with precision phase-optical silk screen rings.
• Finish: Thermo-painted metallic silver.
• Control Units: Electronic ballasts (HF ballast) with various color options for direct light (blue, green, red, white).
• Weight Range: From 2.5 kg (single tube wall luminaire) up to 15.5 kg (3-tube freestanding uplighter).
• Protection Class: IP40, withstands 960°C.

Product Variants Overview

The product line includes:

• Wall luminaires with 1 tube, available in multiple direct light colors.
• Ceiling and pendant luminaires with 1, 2, or 3 tubes, available in different lengths (180 mm and 420 mm).
• Freestanding uplighters with 1, 2, or 3 tubes, equipped with rocker switches and 3 m power cables with plugs.

Color and Light Quality

The direct light color is visible only when the luminaire is switched on; when off, all luminaires appear visually identical. Available color temperatures include warm white (2700 K, 3000 K), white (4000 K), and daylight (6500 K). The color rendering index (Ra) ranges from 85 to 95 depending on the lamp type.

Compliance and Standards

All Opus luminaires meet European and international norms for lighting products, ensuring safety, performance, and energy efficiency.

Manufacturer and Contact Information

Opus luminaires are produced by Regent Beleuchtungskörper AG, headquartered in Basel, Switzerland, with multiple offices across Switzerland, Austria, Germany, Italy, and France. Contact details and further information are available on the Regent website.