Design Strategy - Lysnet

Design Strategy - Lysnet


”Light and Simulation”

”Architects deliberately put

their buildings in the light.

Light is part of their usability.

Quantifiable aspects such as

brightness and nonquantifiable

ones such as

atmosphere become planning


Hans Hollein

Michael Mullins Department of Architecture and Design, Aalborg University

Lighting Design

Design Issues: Lighting is a science

and an art

Purely aesthetic solutions are not

enough: Lighting solutions may

be inadequate in meeting

physiological and mandatory


Purely engineered approaches are

not enough: derived by

specifying lighting layouts and

hardware solely on their ability

to meet only illuminance


Lighting involves space, volume,

form, texture, colour, image,


How to predict the end result

Creating lighting solutions that meet the needs of the user and

provide efficient working conditions.

1. Adequate illuminance

2. Harmonious distribution of


3. Adequate glare control

4. Good contrast rendition

5. The right direction of incidence

6. Pleasant shadow conditions

7. Suitable colour appearance

8. Natural colour rendition

9. Effective lighting atmosphere

10. Efficient energy consumption

Lecture Series: 8th Semester ARK F2006


An introduction to architectural

lighting design

The aesthetic design of internal


Based on a quantitative

understanding of internal

lighting levels

The production of a photometric

model of a portion of the design

for your main project

To allow an accurate estimation of

the properties of light.

Design Strategy

Conceptual Criteria:

Design Vision

Design Strategy -Daylighting

Light and Form

Light and Void

Light and Structure

Natural and Artificial Light

Number One Regent’s Place, London

Blended Lighting

Design Strategy – Seeing, Spatial Perception

How can lighting enhance the

architectural concept

How can lighting enhance the 3

dimensional aspects of form

How can lighting be integrated

with architecture and building

systems and furnishings

Schematic Considerations

Relate fittings to scale: Use

smaller fittings to reduce

impact (< 175mm width for 3m

ceiling height). Add 25mm for

each additional 1m height.

Relate to architectural

rhythms/structures (bays,

beams, columns, flooring


Enhance or contrast architectural

order or disorder

Enhance spatial definition

through selective lighting of

walls and ceilings

Direct the building’s

circulation –use high

luminance zones to define

paths, point of interest,

reception area etc

Schematic Considerations

Think about 3 layers of


Ambient (35 -50%),

Task (50 – 65%)

Accent – specific focal features



Luminous flux -


Luminance –


Luminous flux (Φ) is a photometric measure of radiant flux,

i.e. the volume of light emitted from a light source.

Luminous flux is measured either for the interior as a

whole or for a part of the interior (partial luminous flux

for a solid angle). All other photometric parameters are

derivatives of luminous flux. Luminous flux is measured

in lumens (lm).

Lumens: A measure of the amount of light emitted by a light

source. Not all the luminous flux emitted by the lamp

reaches the work plane. There are losses in the

luminaire as well as absorption, transmission, reflection

losses. In the normal case about 60-70% of luminous

flux will reach the work plane (light output ratio). The

unit is lux and is defined as lumen/m2).

Efficacy: The effectiveness of a lamp in producing light

(lumens) relative to the power (watts) required to power

the lamp. Expressed as lumens per watt.

Illuminance - lux

Illuminance: The quantity of light falling on a given surface.

Measured in lux (lx).

Angle of Incidence

Luminance is a basic parameter of radiating or reflected light

as perceived by the human eye. It is a measure of the

impression of brightness of a surface and is defined

photometrically as the ratio of luminous intensity to unit

area. Unit of measure: candela per m² (cd/m²)

The Intensity distribution diagram is a way of showing

how the light is distributed from a fixture.

Luminaire: The entire assembly of hardware components

(lamps, ballasts, transformers, lenses, reflectors,

sockets, wiring, etc).

Light sources


- quality of the light

- energy efficacy

- operation and service

Technical data:

- spectral distribution

- colour rendering

- colour temperature


- average lifetime

- economical/service lifetime

Lectures and Assignments

1st Lecture: Background: Vision; the

industry; codes and standards (DS


1st Assignment: Establishing design


2nd Lecture: Schematic design,

daylighting and interior lighting.

2nd Assignment: Schematic design for

portion of main project

3rd Lecture: Dial Europe software

3rd Assignment: Hands-on learning of


4th Lecture: Photometric lights and

parameters in 3DMax.

4th Assignment: 3D model with

photometric lighting

5th Lecture: Lamps, luminaries,

controls. Specifications, details,

drawings and construction.

5th Assignment: Choice of lighting

fixtures. Completion of photometric

lighting model and 2D drawing layouts.

Student Work

Anne Nordahl Vestergaard - Camilla Brunsgård - Carlos Edgardo Macias Contreras -Lea Urup

Dial Europe: Daylight factor

”Testing potentially critical areas ….”

Dial Europe: Calculating internal lighting

3DSMax photometric renderings and investigations

Rendering the scene

using radiosity and

photometric lights

The result is with

accurate shadows

from daylight and

interior light.

Add different kinds of

light sources, adjust

lux, kelvin, lumens

cd/m2 etc, add

colour filters etc.


Attempt to achieve the

kind of quality you

described in your

strategy plan.


Function and Quantity

Aesthetics and Quality

Design Method

The production of a photometric virtual

model of a project to achieve the

intended quality and quantity of

light in real space

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