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LIGHTFAIR INTERNATIONAL SEMINAR PREVIEW PHOTO: JUSSI TIAINEN 100 trees with tree luminaires in Turku. The best possible indirect lighting fixture is located above the River and the moon. and optics was long. We had to hit the indirect reflector part with light exactly the right way. The maximum luminance of the reflector part is the same as full moon (average value 1,100 cd/sq. with variation from 500-2,500 cd/sq). All the values were measured, E hor-, E vertical-, E hemispherical-, E semicylindrical- and symmetrical, in order to evaluate the quality of the minimized size lamp chamber and its light. One luminaire can cover a 30 x 16 m area with reasonable E hor values. Selected and summed up values for whole calculation area were the following: E hor average: 20 lx; E hor minimum average: 8 lx; and E semicylindrical minimum average: 1.2 lx. Elevations got 5 cd/sq. We put a lot of effort to minimize the glare. We evaluated the luminaire as post top and road lighting luminaire. All the measurements have shown that this luminaire achieves excellent values. When maximum L 0.25 values for post top luminaires which we have measured, have been 8,000 (extremely bright, 3,000-7,000 is nowadays regarded as acceptable), our fixture was 600. After this, we were excited to study our luminaires glare values using the road lighting fixture measurements. The glare for the road lighting luminaire is presented with glare value G, nuisance glare, with values 1, 3, 5, 7, 9. In this table, 1 is glary and 9 is unnoticeable. Our fixture achieved the theoretical value of 9.5. These evaluation tools, glare, uniformity, luminance, different illuminance values, are usually studied and evaluated separately and they do not affect one another. However, a fixture can produce a lot of light on the road even though it is fairly glary. That kind of fixture can be regarded as efficient and good one. At the same time, a luminaire, which creates less light and has no glare, is much more efficient, since the glare does not prevent our eyes to see clearly. We are saying that the glare values should be part of the formulas estimating the efficiency. Glare and light distribution should not be two separate things. There are many things to be studied. Our statement to this discussion can be seen at the Railway Station Plaza. The Aura River project included all the elements of a public space lighting with a great river area with bridges. One example is the story of how we lighted the trees. Usually trees are lighted either with underground luminaires or with floodlights. Both options create several glary light distribution surfaces with glare causing veiling luminance to observer’s eyes. Floodlights also create big visual elements to sensitive historical environment. We started to study a luminaire, which would be simple, effective and would not have any glare. The solution was to locate the light source to a height of 3 m with a 60 mm pole. The lamp chamber has 2 x 150 W ceramic metalhalide lamps. Lumen output is 30,000 lm. Each tree has its own fixture, always located on the same side of the tree. This creates the difference to the quality of light, depending on which direction you approach from. In the beginning of the project we had a demonstration with the luminaires at the site. An older couple came to us, stopped just under the fixtures, looked around and said: “What a beautiful light, but where does it come from?” We knew we had succeeded. Vesa Honkonen is an architect and lighting designer for Vesa Honkonen Architects in Helsinki, Finland. Julle Oksanen is a lighting designer for Teakon, also in Helsinki. 76 LD+A/May 2001 www.iesna.org
LIGHTFAIR INTERNATIONAL SEMINAR PREVIEW Communicating at the Speed of e Brian Cronin and Anthony Long, of Planetmouse, Inc., hope to ease the wary minds of those skeptical of the power and benefits the Internet can bring to their business. FRIDAY, JUNE 1, 2001, 10:30 AM - 12:00 PM Why do I need to incorporate the Internet into my business? This is a good question, and representative of the synergetic, yet sometimes nebulous relationship between the burgeoning technology and the quintessential challenges associated with business. In our upcoming presentation on Interactivity at LIGHTFAIR INTERNA- TIONAL, Planetmouse will not only aim to shed light on the basic principles that govern interactivity, but will also reveal the potential of the Internet to transform both businesses and everyday reality. The Internet represents many things to many people. To some, it is a vast sea of information. To others, it is a conduit for communications. There are those who still envision tremendous e-commerce potential for the Internet, while many see it simply as a source of entertainment. In short, the Internet feeds heads of many different shapes, sizes, cultures and beliefs. With billions of us buzzing around this big, spinning rock with our heads reasonably intact, I’m guessing that interactivity will be here for a while. www.iesna.org So, what does “e” mean? Literally, “e” stands for electronic, which is a rather generic term these days, similar to the the Internet feeds heads of many different shapes, sizes, cultures and beliefs way folks toss around the word “digital.” If something isn’t digital, then it isn’t first-rate. Acquiring a fundamental understanding of interactive basics is a necessity today. This working knowledge will not only help to avoid confusion, but will allow for more effective strategic planning. While securing a grasp on the basics is a good place to start, it’s important to know how the Internet can support and enhance ongoing business plans. That’s why we are heading to Las Vegas in May. We can help you understand the advantages of harnessing interactivity. Getting Started: Interactivity is all about bringing business to the Internet and vice versa. This is what Planetmouse is all about. Since our inception in the mid-1990s, our primary purpose has been to help our clients understand, strategize and implement interactivity into their business plans. As a result, we plan to touch on the following at LIGHTFAIR INTERNATIONAL. • Plugging the Gaps: How the Internet can make your organization more effective. • Scope & Scale: Addressing both large and small web initiatives (the differences and similarities). • Experience vs. Inexperience: The goal is still the same — increased efficiency and productivity. • Resource Options: The Who, What, Where, When, Why and How of interactive resources. Staying Connected: The impact of online communications can be felt immediately upon implementation. If, for no other reason, companies must establish an interactive presence to fortify this essential business element. Topics will include: • Plugging In & Turning On: Accessing the Web for fun & profit. • Communication: Using email and other web-based tools to bolster communications efforts. LD+A/May 2001 77
Page 1 and 2: RETAIL LIGHTING Lighting Design + A
Page 3 and 4: Willard L. Warren, PE, LC, FIESNA W
Page 5 and 6: SPECIFICATION SALES STRATEGIES Li H
Page 7 and 8: individual member. It is suggested
Page 9 and 10: Willard L. Warren, PE, LC, FIESNA A
Page 11 and 12: Brian Cronin, Director of Business
Page 13 and 14: Members in the News OSRAM SYLVANIA,
Page 15 and 16: 2001 IIDA Entries The following des
Page 17 and 18: IIDA Entries continued from previou
Page 19 and 20: Public Review of the Draft American
Page 21 and 22: P H O T O N S NOTES ON LIGHTING DES
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Page 25 and 26: Keeping with the luminous nature of
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Page 29 and 30: decor progresses east to west, from
Page 31 and 32: PHOTOS: RTKL ASSOCIATES, INC. Arund
Page 33 and 34: PHOTOS: PETER RENERTS STUDIO Richmo
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Page 51 and 52: Circle 100 on Reader Service Card.

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