efficient visual comfort vertical illuminance wallwashing and energyefficiency perceptionoriented principles of planning and design provide enormous potential for making architectural lighting more effi cient in terms of energy invest ment maintenance and instal lation costs directing the light specifically onto surfaces relevant to perception while using innova tive technology is the key to high quality design and economic light ing solutions the rule that vertical illuminances are more important for the impression of brightness in a room than horizontal illumi nances applies outdoors as well as indoors the subjective impression can be used to achieve a brighter impression without increasing the energy consumption alternatively the same brightness impression can be achieved with lower energy consumption in either case the result is an increase in the overall efficiency of lighting an illustra tion of this is the entrance hall shown here in one example illu minated using horizontal lig
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efficient visual comfort qualitative lighting design display shelves with accent light design 1 a display shelf is to be illuminated with brilliant accent light highlight ing it against the dark surroundings in the first example this is provided by five adjacent beams from narrow spot spotlights equipment used luminaires ea 35w hit 5 x spherolit reflector narrow spot connected load 175w display shelves with accent light design 2 a comparable effect which is more attractive due to the greater uni formity can be produced with only three spotlights fitted with display lenses this special lighting technol ogy shapes the beam into a wide oval while retaining the brilliance for an attractive effect produced on bright materials and surfaces equipment used luminaires ea 35w hit 3 x spherolit reflector spot with display lens connected load 105w energy saving 40 salesroom design 1 this task is to illuminate a large sales room such as a floor within a depart ment store or shopping centre in the f
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efficient visual comfort intelligent lighting control erco s dali technol ogy makes lighting con trol energyefficient userfriendly and eco nomical individual light scenes to suit each situation are selected and controlled by the user this is in combination with auto mated light management using sen sor systems and timer programs which have the potential for enormous energy savings typical scenarios here include the use of presence detectors so the light in unused rooms can be dimmed or switched off similarly twi light switches or analogue day light sensors can be used to recall light scenes to supplement the available daylight easy installa tion setup and ease of operation contribute to the high level of acceptance of these systems among the users in terms of lighting installa tions with con trol systems such as light system dali the con nected load only indicates the theoretical max imum the actu al consumption will be deter mined through the use of the programmed scenic dimming user-
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quintessence recessed luminaires and recessed spotlights more than 1200 new lighting tools for efficient visual comfort the philosophers of the ancient world referred to the omnipres ent energy of life as the fifth ele ment or quinta essentia today the term quintessence is under stood as the synopsis of the essential the end result the new quintessence product range lit erally forms the quintessence of erco s 40 years of experience in ceilingintegrated lighting yet at the same time also looks forward formulating a futureproof system framework for the further devel opment of recessed luminaires the vigorous requirements of the architecture of tomorrow were a primary factor in determining the development of quintessence the first recessed luminaire prod uct range to be uncompromisingly designed around the aspect of effi cient visual comfort one focus of this universal product range is on wallwashers for energyefficient 18 erco program 2010/11 vertical illuminance another is on effici
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logotec surfacemounted and recessed spotlights logotec spotlights logotec is a range of exceptionally economical cleanly styled spot lights uncompromising in terms of lighting technology and build quality using contemporary light sources and the patented erco spherolit reflectors they pro vide efficient visual comfort and great flexibility in application for example in shops restaurants or galleries tilt positions the housings of logotec recessed spotlights feature a range of incre mental settings for maximum flexibility innovative light ing technology logotec spotlights have the patented spherolit reflec tors with a variety of characteris tics for efficient visual comfort logotec recessed spotlights the new logotec recessed spot lights feature the same high quality lighting technology and housing quality as logotec sur facemounted spotlights they can be retracted partially or com pletely into the recessed housings as required they use the same mounting rings as quintessence luminair
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focus of innovation leds for outdoor areas lightcast ip65 recessed luminaires with led the properties of leds such as long life and low energy consumption really come to the fore in applications in the outdoor area the lightcast ip65 recessed luminaires are now also available with led lighting technology as lens wallwashers downlights and directional luminaires all available both in warm white and daylight white page 1002 ip65 cylinder downlights with led the same led lighting technology advantages used in the lightcast ip65 recessed luminaires are also available in the ip65 cylinder downlights these luminaires are now available as lens wallwashers downlights and directional luminaires both available in warm white and daylight white page 1033 tesis ip68 lens wallwashers with led vertical illuminance is an important factor for efficient visual comfort in outdoor areas the advantages of leds such as their increased efficiency and negligible maintenance really come into their own here the
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focus of innovation leds for outdoor areas powercast powercast is a universally applicable range of economical lighting tools for outdoor areas the projectors and floodlights feature current technologies such as leds or spherolit reflectors for efficient visual comfort their system design follows a uniformly styled housing this not only offers symmetrical light distributions for accent lighting from narrow spot to wide flood but also has different flooding light distributions this makes powercast a particularly versatile economical and flexible range of luminaires applications include the illumination of facade details signage or vegetation powercast projectors powercast projectors are available for metal halide lamps or low-voltage halogen lamps and with spherolit reflectors of four different beam angles when fitted with leds a choice of three different beam angles is offered these luminaire versions produce higher luminous flux through the current generation of leds page 850 powercas
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illumination of vertical surfaces light can be used to define and continually reinterpret spaces looking at walls and other ver tical surfaces it is clear that these are crucial for the percep tion of architecture illuminated walls allow us to perceive the shape and dimensions of a room when illuminated in perfect uni formity the wall appears light almost intangible objects such as photos posters or paintings can be viewed in optimal condi tions vertical illumination cre ates a subjective impression of significant brightness in the room and can contribute to energy sav ing the lighting equipment used for this type of lighting is called wallwashers erco has developed and perfected these special lumi naires for decades the result is a range of tools for the illumina tion of vertical surfaces which is as yet unparalleled in terms of its extent and distinction the differ ent types of wallwasher and their typical applications are presented on the following pages www.erco.com erco program 20
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illumination of vertical surfaces the applications illustrated describe a widespread uniform wall illumina tion with different optical systems and a wide range of lamps to ensure optimal uniformity and high illumi nances the following is recom mended wall height up to 3.0m 4.0m offset from wall 1.0m 1.5m when the wallwashers are arranged in a row the luminaire spacing should be the same as the offset from the wall with some luminaires this can be up to 1.5 times the offset from the wall in addition the wall and spacing distances documented in the publications provide information on optimal arrangements and the expected illuminances light clients many wallwashers are available as light clients i.e with dalicom patible factory encoded control gear they are automatically rec ognised by light system dali plug and play dali plug play lens wallwashers the reflector technology used here is suitable for the highest museum quality lens wallwashers illuminate walls from the ceiling to the floor
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illumination of vertical surfaces wallwashers with tesis wallwashers part of the luminaire is above the mounting plane thus the luminaire cannot be walked on or rolled over by vehicles the beam intersects with the wall directly above the mounting plane the illuminated surface remains practically invisible to the viewer a special wallwasher reflector and a softec lens provide the highest level of uniformity wallwashers lightcast wallwashers for com pact fluorescent lamps are availa ble especially for wall and shelving illumination in salesrooms on these wallwashers the peak intensity is emitted at approx 30° and produces the vertical illuminances important for the required spatial effect wallwashers parscoop wallwashers and flood lights are provided with asymmetri cal beam reflectors these reflectors are designed so that the light dis tribution is ideal for uniform facade lighting powercast floodlights with spherolit reflector washlight must be tilted for optimum brightness distribution
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