SEQUENCE OF LIGHTING DESIGN
I. DETERMINE GOALS AND DESIGN CRITERIA FOR LIGHTING
A. QUANTITY CRITERIA
o Units are Foot Candles or Lumens
o Units are generally measured at a plane 30” from floor
o Based on energy codes and IESNA recommendations
(More on Quantity Criteria later)
B. QUALITY CRITERIA
o Based on research, as well as aesthetics
(More on Quality Criteria later)
C. CODES
II. RECORD ARCHITECTURAL CONDITIONS AND CONSTRAINTS
A. COMMERCIAL
o Windows and Plenum Space are most relevant items
B. EXISTING BUILDINGS
o Obtain “As-Built” Drawings
o Interview Building Manager, Maintenance Personnel for building quirks and problems
o Record observations in orderly manner
C. NEW CONSTRUCTION
o Early lighting design input can result in greater economy and better outcomes
III. DETERMINE VISUAL FUNCTIONS AND TASKS
A. DETERMINE LIGHT LEVELS FOR EACH AREA
B. COMBINE LIGHT LEVELS WHERE POSSIBLE (see Karlen pp. 67-68)
IV. SELECT LIGHT “SYSTEMS” OR TYPES
A. MOST DESIGNS REQUIRE AT LEAST 2 SYSTEMS
B. BEST TO COME FROM ABOVE, BELOW, EYE LEVEL?
C. DIRECTED OR DIFFUSE?
D. VISIBLE OR HIDDEN SOURCES?
E. CONSIDER DISTANCE FROM POWER SOURCE, CEILING HEIGHT
V. SELECT LUMINAIRE AND LAMP TYPE BASED ON CATEGORY OF LIGHTING NEEDED
A. LUMINAIRE
o Style
o Size
o Direction of light
B. LAMP
o Output
o Color rendition
o Energy code (Note: can be primary consideration)
o Lamp life
VI. NUMBER AND LOCATION OF LUMINAIRES
A. GOAL: GET LIGHT WHERE NEEDED
B. AVOID GLARE
C. BASED ON OUTPUT OF LUMINAIRE SELECTED
D. PLACE IN ORDERLY, ORGANIZED WAY
§ Use existing grid as a basis for commercial design for efficient use of resources, budget
§ Unusually-shaped rooms, or angled furniture plans may require odd layouts
§ Constructions systems (steel, concrete, wood, etc., as well as spacing of structure) must be considered for placement, types of fixtures
VII. SWITCHING AND CONTROL DEVICES
A. LOGIC AND COMMON SENSE
B. CONVENIENCE
C. TECHNOLOGY OFFERS OPTIONS FOR ENERGY SAVINGS, INCREASED CONVENIENCE
VIII. AESTHETICS AND OTHER INTANGIBLES
A. GOOD DESIGN CAN HELP AN ORDINARY SPACE SUCCEED, DEFEAT A GOOD DESIGN
B. THERE MAY BE SEVERAL GOOD SOLUTIONS
C. USE THE ELEMENTS AND PRINCIPLES OF DESIGN
o Considering size and scale is crucial—residential ceilings of 8-12’ will have different solutions than vast auditoriums or hotel lobbies
D. SHOW OFF THE UNIQUE FEATURES OF THE SPACE
E. CONSIDER MATERIALS AND FINISHES TO BE LIGHTED
F. COLOR OF LIGHT RELATED TO COMPLEMENTING FINISHES, COLORS, TEXTURES
G. HIGHLIGHTING AND ACCENTING FOCAL ITEMS
H. WAYFINDING
I. PERCEPTIBLE SPATIAL QUALITY (A DOME WITHOUT LIGHT IS NOT “THERE”)
J. ACHIEVING THE RIGHT “FEEL” IS DIFFERENT FOR A CHURCH, A NIGHTCLUB OR HOTEL LOBBY
L. MEET THE GOALS OF THE DESIGN PROGRAM: JEWELRY STORE OR LIVING ROOM?
IX. POST-OCCUPANCY EVALUATION
A. LEARN WHETHER THE SOLUTIONS WORKED WELL
o Functional, aesthetically pleasing, comfortable?
B. MAKE ADJUSTMENTS WHERE NEEDED
C. LEARN FROM WHAT WORKED AND DIDN’T
D. LIGHTING IS SORT OF INTANGIBLE, SO NEED TO LEARN FROM EXPERIENCE
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