Lightcast Recessed luminaires

The Lightcast recessed luminaires for general and accent lighting have cast aluminium housings. The Darklight technology combines the maximum visual comfort with the maximum light output ratio. High protection mode recessed luminaires are suitable for the transitional areas between indoors and outdoors. Typically they are used for entrance zones or arcades. In indoor areas where protection against moisture or dust is required, they ensure high-quality lighting even in harsh environmental conditions.


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Reflection

Especially in LEDs where high visual comfort is required ERCO uses optical systems based on the principle of reflection. This is the case in the Quintessence range of recessed luminaires with darklight reflectors. Here, to provide optimum glare control, the illuminated plane of the diffuser is set back from the plane of the mounting surface. This allows the exact cut-off angle to be defined. Darklight reflectors with Spherolit wallwasher segments produce asymmetrical light intensity distributions for energy efficient washlights and double washlights. To meet the stringent quality requirements, ERCO carries out all calculation, design and production work in-house.

Light mixer The upper reflector of Quintessence LED downlights is divided into eight segments and is made of mirror-finish aluminium. The reflections within this light mixer ensure the best possible colour mixing from immediately in front of the luminaire especially with RGBW LED modules.

Diffuser The purpose of the diffuser technology is to optimise the visual comfort. The frosted glass diffuser reduces the high luminance of the individual LEDs and disperses this evenly across its surface to reduce the glare. The diffuser technology enables the design and construction of high-quality, energy-efficient washlights.

Spherolit wallwasher To achieve the uniform vertical illuminances required for wallwashing, one segment of the Darklight reflector is provided with spherolites. In the photo, the diffuser has been removed to show the position of the LED module. The patented reflector technology results in the light on the wall beginning just below the ceiling.

Diffuser technology

The diffuser technology of Lightcast optimises visual comfort. The diffuser effectively increases the size of the light source thereby reducing the luminance in the light aperture. The small hole in the centre of the diffuser simplifies lamp replacement. Depending on the lamp, either translucent plastic diffusers or frosted glass diffusers are used.

Darklight technology

ERCO downlight reflectors are calculated using complex computer programs. This results in the reflectors having consistent cut-off angles for a variety of lamps and aperture sizes. Within the cut-off angle there will be no disturbing glare. This is the characteristic feature of the ERCO Darklight technology. The Darklight technology combines maximum visual comfort with maximum light output ratio and an exceptional balance between horizontal and vertical illuminance.

The standard cut-off angle of the ERCO downlight range is 40°; this is the angle between the horizontal ceiling surface and the diagonal from lamp to reflector edge. The standard range is complemented by downlights with 30° and 50° cut-off angles.

Reflector technology

The sculpture lens in the directional luminaire changes the round beam into an oval. A row of luminaires thus produces a light strip on the ground. Directed onto the wall, the light distribution can be used for wallwashing.

The narrow beam angle of the directional luminaires effectively highlights architectural details or accentuates objects. The lampholder carrier can be tilted up to 15°.

Other ranges in the product group: Recessed luminaires

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Paratec
Introduction
Product overview

Surface-mounted luminaires

Projects with Lightcast Recessed luminaires

International projects and application studies introduce interestingarchitecture and exemplary lighting applications. Concrete descriptions ofthe lighting solutions with impressive photos explain how the lightingeffects are achieved.

ECE Center Thier-Galerie
Dortmund

Guide

The Guide section provides thorough information on everything from the physical bases of lighting to suggested solutions for different lighting situations. The interactive knowledge modules vividly illustrate lighting solutions that are possible with this product range.