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1998 INTERNATIONAL ILLUMINATION DESIGN AWARDS ® Wallace G. Eley and David J. Young created a unique luminaire suggestive of the office they were lighting. Satellite dishes become a part of the architecture at the Bell Expressvu Inc. Broadcasting Center in North York, Ontario. The lighting design for the Bell Expressvu Inc. call center incorporates a variety of satellite dishes. (opposite) The ballasts for the large dishes are remote to reduce noise and maintenance time. (right) The satellite dishes were given a silver finish to blend with the architecture. EXPRESS YOURSELF How can satellite dishes with perforations act as lighting reflectors This was the challenge we faced when appointed to work with architect Julian Jacobs on the design for a direct-to-home satellite TV company, the Bell Expressvu Inc. Broadcasting Center, located in North York, Ontario, Canada. The design received a 1998 IIDA Edwin F. Guth Memorial Award of Excellence on behalf of the whole lighting design team. Inspired by Bell Expressvu’s avant garde corporate culture and by President Michael Neuman, it was Jacobs’ idea to use satellite dishes as luminaires. However, it was immediately apparent that this would not be easy, since the satellite dishes are perforated and allow light to pass through them. In addition, time was limited as this project was designed and built in less than 140 days. Such were the challenges facing the Crossey Engineering Ltd. (CEL) team, which worked with Jacobs. Call centers generally experience high turnover of phone operators due to the stressful nature of the work. To counter this, the purpose of the entire facility—not just the lighting—is to honor the person in the midst of high technology. Key to this formula is the lighting that stimulates and energizes and is reminiscent of daylight, 24 hours a day. The concept of using the large obsolete and smaller current satellite dishes as luminaires was tied in with the concept of ever-changing technology. Choosing obsolete large satellite dishes as chandelier lighting fixtures in large open spaces, and the more current oval satellite dishes as wall sconces and wall standards, shows the recycling of the old and the inclusion of the new into a high-tech continuum. “Their unusual usage also brings a surreal quality to the Call Center,” commented Jacobs. CEL, led by David Young, Senior Designer, instigated the thought process on the lighting’s task-oriented design mandate. It required lighting that complemented Bell Expressvu Inc.’s function and architectural design. Inside, the building structure was exposed and the floors were stained concrete. There are minimal finishes. The lighting needed to be suitable for both VDT and reading tasks. There was to be a full layout in the Call Center, as well as wall sconces like pizza dishes developed for the corridor leading to the open plan cafe, and control room at the center of the facility. A tight budget and scanty time line dictated the design solutions. Satellite dishes as luminaires were supplemented in the Call Center, cafe, and open office area by direct downlight fluorescent tubelights. The tubes were fitted with straight blade white louvers to minimize the direct glare. Both sources have some glare control available within the fixtures, and are capable of exhibiting similar color rendering properties, which allows them to be used together. But our biggest concern was the efficiency of the satellite dishes, since they were not originally designed to act as light fixtures. The testing time, required to determine how the perforated satellite dishes could operate as lighting reflectors, was reduced to a minimum. Yet coverage losses could only be resolved after mocking up and carrying out extensive tests to determine if the concept would work. CEL therefore suggested mocking up the fixtures. Jacobs quickly arranged for the satellite dishes to be sent to a custom lighting manufacturer, Nelson & Garrett in Toronto, with whom the team had previous experience. There they suspended a large satellite dish from the shop ceiling along with a metal halide luminaire. Jacobs, myself, and other team members reviewed the appearance and effect of the mock-up. We decided to have the dish painted silver to blend in with the architectural colors and to improve reflective quality. We also determined the mounting height and location of the light source below the dish. The 400 W metal halide lamp was housed in a bowl fixture. During the mock-up, light meter readings were taken, which reassured CEL that the dish would perform as expected. The mounting height of the dish luminaires was also decided at this mock-up meeting. The small dish luminaires were also mocked-up and discussed. Nelson & Garrett went on to produce shop drawings of the dish luminaires, which were reviewed by the design and construction teams including Vanbots, the construction managers. CEL’s recommendations for installations were then implemented. We were responsible for reviewing the installation made by the electrical contractor, Guild Electric. As the large satellite dishes were to be used in the Call Center and open office, we drew up a layout that included supplemental fluorescent tubelights that ran in between the dishes. The layout was given to another CEL team member, Bill Hirons, who transferred the layout to a lighting program. The 32 LD+A/April 1999 LD+A/April 1999 33
(right, top) A wall mounted 2 ft diameter dish is illuminated by a 90 W PAR38 lamp. The small dish transmits packages of light along the corridor. (right, bottom) The 10 ft ceiling luminaire is lighted by a 400 W coated metal halide lamp. printouts indicated that the levels were consistent with those of a modern office. The results showed 30–35 fc maintained. This was of some concern, so we indicated to the interior designer, Gail Weininger of Julian Jacobs Architects, that the furniture system specified must have task lighting included. This would allow employees to bring the lighting levels up to 50 fc, when required. Issues of noise sensitivity are of concern in call centers, which can be office work stations. Mounting these ballasts on the structure above may have caused noise. Plus, they would be difficult to maintain. So ballasts were located in an adjacent room. During the installation, Young observed that, at certain angles, the lamp image was visible within the large luminaires. He instructed Guild Electric that the bowl must be lifted higher. In doing this, the bowl also provided a cut-off angle to the light and confined the direct beams of light to the dish itself, and not to the space above. The lamp has the smallest maximum overall length in this lumen package. A 400 W coated metal halide lamp illuminates the 10 ft dish, while a 90 W PAR38 lamp illuminates the wall-mounted, 2 ftdiameter dish from its focal point. The small dish is used to transmit packages of light along the corridor where actual lighting levels were less critical there than those in the Call Center or in the open office. In the Call Center, the large dishes are used along with louvered fluorescent tube luminaires to provide an average of 30 fc at desk level. Task lights in the modular furniture are switched locally to raise levels to 50 fc where required. In order to minimize the feature above the fixture, the uplight was minimized by making the tubelights downlight only. The Call Center’s lighting concept was carried over to the cafe. The seating area adjacent to the cafe is illuminated by a large skylight during daylight hours. In the evening, the small dishes are supplemented by borrowed light from the adjacent spaces. The extension of the connecting corridors borrows light from the Call Center and cafe. The design used energy efficient technology which minimized lamp quantities, thereby reducing maintenance. Commenting on the effect the lighting design has had on its business, Bell Expressvu President and CEO Michael Neuman remarked, “The lighting has created a fun, yet effective, design attribute in our building, which has a positive impact on everyone passing through, and on employee morale in particular.” The designers: Julian Jacobs is Senior Partner of Julian Jacobs Architects of Toronto, Canada. Founded in 1979, this Governor General’s Award-winning firm is regarded as one of the most creative in Canada. With associate offices in strategic centers across the Americas, in Europe, Asia, and Africa, its theater of operations is global. The company’s expertise includes most building types, urban design, planning, interior design, and research. He has been an IESNA member since 1997. Wallace G. Eley, P. Eng., is President of Crossey Engineering Ltd. of Toronto, Canada, where he has worked for 23 years. David J. Young is a Senior Project Manager with Crossey Engineering Ltd., which has provided lighting consulting on many theater, casino, pharmaceutical, library, municipal, university, school, hospital, and office complex commissions in Canada and the United States. noisy places. Jacobs therefore decided to spray an acoustic-absorbing material onto the underside of the structure above the Call Center. Remote ballasts also were a design element that we considered. If the ballasts were located within the bowl-shaped housing suspended below the dish, the dish could then act as a reflector to the sound, aiming down into the Call Center and open (left, top)The seating area adjacent to the cafe is illuminated by a large skylight during the day. At night, small dishes are supplemented by borrowed light from nearby spaces. (left, bottom) In the Call Centre, the large dishes are used along with louvered fluorescent tube luminaires to provide an average of 30 fc at desk level. 34 LD+A/April 1999
Page 2 and 3: CONTENTS LIGHTING DESIGN INTERNATIO
Page 4 and 5: 4 LD+A/April 1999 HID (high intensi
Page 6 and 7: Table 1— Generic composites of va
Page 8 and 9: 210 to 101. Photocells were also in
Page 10 and 11: Color Dr. Richard Corth explains,
Page 12 and 13: P H O T O N S NOTES ON LIGHTING DES
Page 14 and 15: P H O T O N S NOTES ON LIGHTING DES
Page 16 and 17: Power Ads The advertising dynamos a
Page 18 and 19: San Francisco Shines at LIGHTFAIR S
Page 20 and 21: LIGHTFAIR Events continued from pre
Page 24 and 25: TUNNEL VISION Located in west Paris
Page 26 and 27: The worlds of art and architecture
Page 28 and 29: The Guggenheim Museum Bilbao is the
Page 30 and 31: (below) By highlighting the water,
Page 32 and 33: LIGHTFAIR INTERNATIONAL SEMINAR PRE
Page 42 and 43: LIGHTFAIR INTERNATIONAL LIGHT CHAT
Page 44 and 45: was more than happy to oblige and h
Page 46 and 47: Opportunities abound for manufactur
Page 48 and 49: most plush and dramatically lit dan
Page 50 and 51: efficient source for display downli

lightfair international - Illuminating Engineering Society

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