Healthy Living

Light and Health | Healthy Living

The Healthy Living site is made up of two parts. The Background page consists of information we, at the LRC, consider vital in understanding how light affects health. The Application page is essentially a library of examples of effective lighting in different spaces.

Getting started | Background | Application

Getting started

The Healthy Living website is hosted at https://www.lrc.rpi.edu/healthyliving

Background

The background page is a great way for users of all levels of light knowledge to learn something new.

Below is a list of the specific topics we cover on the background page. These concepts do not make up a perfect list of everything light, instead, they are the concepts we believe to most important in understanding how the healthy living application works and also in understand the work the light and health alliance does.

Fundamentals

• Our Role
• What is Light?
• Light and the Circadian System
• The Sleep/Wake Cycle
• The Eye
• The Retina
• Rods and Cones
• Non-visual Systems
• What is Circadian Lighting?
• Summary

Manufacturer's / Designer's Steps

• Components of Circadian Design
• Information about Room
  • Facility and Room Type
  • Occupant Type
  • Area of Room
  • Ceiling Height
  • Room Reflectances
  • Furniture Layout
  • Horizontal Illuminance
  • Vertical Illuminance
  • E_V/E_H Ratio
• Circadian Lighting Solution
  • CS Schedule
  • CCT System
  • Desired CCT
• Luminaires
  • Retrofit
  • New Design
  • Luminaire Type(s)
  • Personal Light Devices
  • Intensity Distribution
  • Orientation of Luminaire
  • Mounting Height
  • Maximum Lumen Output
  • Initial Wattage
  • Luminaire Spacing
  • SPD
  • Luminaire Quantity
  • Light Loss Factors
• Computer Design
  • Lighting Design Software
  • .ies Files
  • CS Calculator
• Applied Design
  • Illuminance Meter
  • Spectroradiometer
  • Tape Measure
  • Installing Test Luminaires
  • Control System
  • Daysimeter
  • CS Calculator
• Results
  • Avg Vertical Illuminance
  • Avg CS at Occupant Locations
  • Avg Horizontal Illuminance
  • Maximum LPD
  • Energy Usage
• Summary

Individuals

• General Information
• Learn More
  • Lighting Systems
  • Horizontal Illuminance
  • Vertical Illuminance
  • CCT System
  • Desired CCT
  • CS Calculator
• Personal Lighting Devices
  • General Information
  • Desk Luminaire
  • Light Goggles
  • Light Tray
  • Light Table
  • Orange-tinted Glasses
• Summary

Offices

• General Information
• Occupants
  • Daytime Work
  • Evening Work
• Specialty Information
• Summary

Healthcare

• General Information
• Occupants
  • Shift Workers
  • Patients
  • Infants
• Specialty Information
  • Lighting in the NICU
  • Patient Orientation
  • Visual Performance
• Summary

Senior Care

• General Information
• Occupants
• Specialty Information
  • Lighting for Stability
  • Alzheimer's Disease
  • Eye Diseases
• Summary

Schools

• General Information
• Occupants
  • Pre-teens/Adolescents
  • College
  • Special Needs
• Summary

Additional Information

• About Us
• Our Mission, Role, and Values
• Acknowledgements
• Downloads
• Glossary
• References
• Additional Resources
• Sponsors
• Suggestions/Report a Bug

Application

Likely the best way to familiarize yourself with the application page is to just play around.

The selection process is 6 steps long consisting of: facility, room, fixtures, target CS, CCT system, and CCT. The option to change the time of day also becomes available after the selection process.

The specific choices of each of these selections that we considered are as follows.

Facilities

• Senior Care
• Office
• Healthcare
• School

Rooms

• Assisted Living Single with Kitchen
• Nursing Home Single
• Common Area
• New Open Office
• Traditional Open Office
• Private Office
• Single Patient Room
• Double Patient Room
• Nurses Station
• Neonatal Intensive Care Unit
• Standard Classroom
• Special Education Classroom
• Lecture Hall
• Dorm

Fixtures

• 2x2 Troffer
• 2x4 Troffer
• 2x4 Center Basket Troffer
• Cove
• Desk Luminaire
• Direct/Indirect Linear Pendant
• Downlight
• Floor lamp
• Flush Mount
• Hanging Pendant
• Linear Strip
• Perimeter Valance
• Recessed Linear
• Skylight Panel
• Table Lamp
• Task Lamp
• TV Valance
• Under Cabinet
• Wall Sconce
• Wall Valance
• Wall Wash

Target CS

• 0.3
• 0.4

CCT System

• Static
• Tunable

CCT's

• 6500 K
• 5000 K
• 4000 K
• 3500 K
• 3000 K
• 2700 K