Tag Archives: Lighting Controls

Healthy Lighting: Spotlight on Patient Rooms

  1. Lighting Design Approach
    • The lighting must be developed as part of a holistic approach to the design of the patient’s room. The lighting design strategy, hardware, and controls must work with all of the other systems to optimize the level of care and the comfort of the patient.
    • Developing this lighting design approach becomes akin to building a kit of parts which can be developed across a hospital or healthcare facility as a whole, thereby reducing maintenance needs and providing a consistent light quality.
  1. Lighting Response to Specific Types of Patient Rooms
    • Typical Patient Room
      • Indirect ambient lighting with low glare light fixtures.
      • Focused reading lights located behind the patient’s head.
      • Low illuminance nightlight to illuminate path to bathroom.
      • Low illumination observation lighting to be provided on either side of the patient bed where electronic recorded keeping takes place.
      • Wet rated, non-conductive, vandal resistant shower lighting to be provided.
    • Examination Rooms
      • Fully adjustable recessed lighting should be provided to be able to examine a full range of patient needs. Fully recessed wipe-down lights are recommended for reducing the spread of bacteria and germs.
      • Provide recessed downlighting:
        • Prevents the light source being seen from normal lines of sight (cutoff angle between 40° and 50° from horizontal).
        • Greatly reduces the possibility of hazards.
        • Makes maintenance and cleaning of fixture easier.
        • Has a high value because it provides high efficiency at a lower cost.
      • Lighting must be provided with a level of redundancy in case of problems or emergency.
    • Clean Rooms
      • Surfaces of light fixtures should be fully recessed with minimal protrusion into room.
      • Light fixtures must be provided with anti microbial finishes.
      • Lighting fixtures must be rated for a clean room environment.
  1. Lighting Technology Needs
    • Provide a fully resilient design that it prepared for extreme events.
    • Lighting to be provided with sustainable light sources such as LED and CFL to maximize energy efficiency and provide cost savings.
    • Provide lighting solutions that increase the user’s connection with nature. Therefore improving the end users mental health; reduce stress and overall improvement of their well-being.
    • High Color Rendering Index (CRI) to be provided to ensure the healthcare physician can accurately evaluate the patient.
    • All lighting to be provided with minimal source brightness. Glare control accessories to be provided where required.
  1. Lighting Control Needs
    • All Lighting to be provided with dimming control that can smoothly dim the lighting to permit low light levels at night to minimize eye adaptation.
    • Patient to be provided with illuminated switches to control certain lighting:
      • Ambient lighting with a recommended lighting level of 10 footcandles (fc)
      • Reading lights with a recommended lighting level of 50 fc
      • Shower lighting with a recommended lighting level of 30-50 fc
    • Doctors/Nurses to control certain lighting
      • Examination lighting with a recommended lighting level of 100-300 fc
      • Nightlight to be on switch or photocell with a recommended lighting level of 3 fc
      • Observation lighting to be provided with dim red amber light switched at the door.

 

Sources:

RP-29-06. Lighting for Hospitals and Healthcare Facilities (ANSI Approved)

 

Control Integration: As Lighting Technology Evolves, Illumination and Control Capabilities are Becoming Integrated.

Lighting controls have always been an essential component of a lighting system, as they enable basic functionality: turning lights on and off, and dimming. But today, these functions are being automated in order to reduce energy consumption—a trend driven by sustainable design and commercial-building energy codes, which have made automatic controls a staple in new construction. According to a new study—”A Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings,” prepared by Lawrence Berkeley National Laboratory (LBNL) in Sept. 2011, in which 88 papers and case studies were analyzed—popular lighting control strategies yield an average of 24 to 38 percent lighting-energy savings in commercial buildings.

As lighting designers, clients, and building owners require greater functionality for lighting controls, more sophisticated lighting-control solutions are being specified. Traditionally, these lighting controls were built as systems separate from the luminaire. But a growing number of luminaire manufacturers are beginning to integrate lighting controls as product components, enhancing visual aesthetics while simplifying design and installation.

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Written by: Craig Dilouie

Source: Architectural Lighting Magazine

GSA Report Validates Lighting Energy Savings Realized with Responsive Lighting Controls

Lumenergi®, a leading provider of network-controlled lighting energy management solutions, was recently cited in a report by the General Services Administration (“GSA”), the largest owner of commercial real estate in the United States, for slashing lighting energy consumption by up to 63 percent in a lighting control pilot program of 11 western region buildings.
“Not only does this assessment demonstrate that responsive lighting delivers deep energy savings across the board, it also helps the GSA understand where deployment of this technology maximizes payback,” said Ruth Cox, Regional Administrator, Region 9 – Pacific Rim, General Services Administration.
“Lighting is the largest consumer of electrical energy in commercial buildings,” said Barry Weinbaum, President and CEO of Lumenergi. “While many companies claim to save large amounts of energy, they often come up short. The GSA’s use of Lumenergi’s integrated lighting controls solution clearly demonstrates that we deliver material energy savings and maintain lighting comfort while enabling preservation of our customers’ embedded building infrastructure investments.”

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Click here to read the Forbes article

Written by: Lumenergi/Herald Online

Add LED Intelligence–Improve light quality, efficiency and cost

As the lighting industry continues to make the transition to LED technology, there is an increasing need for more intelligent controllers and drivers. The rising price of electricity presents a major operating cost to consumers and businesses; however, efficient operation of LEDs can result in substantial savings. Many applications need to produce consistent light quality while supporting advanced control functionality such as dimming, balancing, and accurate color mixing. Remote connectivity is also becoming a regular requirement in applications where high-maintenance expenses can be reduced through self-diagnostics that allow technicians to make a service call only when there is an actual reason to visit a site.

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Written by: Patrick Carner

Source: EDN Network