Essay regarding Led Lights

LED LIGHTS

A Museum Exhibit Case Study

By simply Kathy Andal

September 6, 2013

In April 2014, the Durango County Art gallery of History installed a small display titled Our heritage: Images from the past. The collection consists of five daguerreotypes and several sterling silver albumen designs. A study was performed to gauge the benefits and costs of using LED. lights rather than traditional halogen lamps. RISKS OF LIGHTING HISTORIC PHOTOS

All light harms photographs. (Lavedrine 2003) It is the activity of the conservator to minimize this kind of harm in order that the photographs can be looked at for a significant span of time, typically 60 to 100 years. For these reasons, historic photographs will be displayed just periodically in rooms with significantly decreased lighting. These kinds of practices minimize the visitor encounter and in accordance to Search, reducing light levels reduces color saturation and compare. (Hunt 1952, 192) In every lighting devices, ultraviolet mild (UV) has to be eliminated while that range harms photographs the most. Tungsten halogen lights must have UV filtration installed which adds to their price and efficiency. LED. bulbs do not emit UV lumination and do not will need extra filter systems. According to a study by Getty Conservation Institute, falling from LED. lamps does not result in anymore damage than conventional halogen lamps with ultraviolet filtering. They discovered that it is very likely using LED. lamps leads to less diminishing of photographic materials. (Druzik and Callier 2011) METHODOLOGY

In the fresh exhibit, doze watt PAR38 20В° lights were employed. The temp rating for anyone lamps was 2700 Kelvin. Although the LED. light output was significantly less than traditional tungsten-halogen lamps, a lot of screening was still needed. AND ALSO filters are not installed since LED lamps do not emit any significant levels of ultraviolet light. This simplified the installation method. In the past, the museum curator would have lit the show with 62 watt, PAR38 30В° 120V halogen flood lamps. AS WELL AS filters were...

Bibliography: Druzik, Jim, and Naomi Miller. Guidelines for Selecting Solid Express Lighting pertaining to Museums. 2011. http://www.getty.edu/conservation/our_projects/science/lighting/lighting_component8.html (accessed April 13, 2014).

Look, Robert T. " Mild and Darker Adaptation and Perception of Color. " Journal of the Optical World of America, 1952: 190-199.

Lavedrine, Bertrand. A Guide to the Preventive Conservation of Photograph Collections. Los Angeles: Getty Conservation Institute, 2003.

Wiggens, Matt, Kurtis McKenney, John Dieckmann, and James Brodrick. " Solid-State Lighting, Part 2: Applications. " ASHRAE Journal (American Society of Warming, Refrigeration and Air Conditioning Technical engineers, Inc. ) 52, no . 2 (2010): 78, 80-81.

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