LIGHTING DESIGN_LECTURE 1

GLUCK

Lighting

application of light to spaces

Where the light is placed, at what relative intensities, and in what direction, can have a major impact not only on vision and visual comfort, but perception.

Not just light, but the lighting equipment itself can also affect impressions of the space and its owner.

Light

creative medium, the most powerful of all.
plays a central role in the design of a visual environment: the architecture, people and objects are all made visible by it.

influence our well-being, the aesthetic effect and the mood of the room or area.

is electromagnetic radiation of a wavelength that is visible to the human eye (380 or 400 nanometers to about 760 or 780 nm)

In physics, the term ___ sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

gets

How light is produced?
When you heat up an atom, its electrons jump to higher orbits. When the atom cools down, they go back to where they were and emit light.

“gets”

bet

WHY WE REQUIRE A LIGHT

It is the light that first enables ”what we see”.

Light defines zones and boundaries.

Light expands and accentuates rooms.

Light create links and delineates one area from another.

Has several functions (illumination, revelation of form, focus, contrast, functionality)

bet

illumination

simple ability to see what is occurring on

Revelation of form

Altering the perception of shapes on space, particularly three- dimensional elements.

Focus

Directing the public attention to an area of the region or distracting them from another.

Contrast

Lighting of an object or area so that it becomes brighter than its surroundings.

Functionality

The level of illumination required for a particular application depends greatly upon seeing the task involved and upon the surrounding conditions.

Natural Lighting

Artificial Lighting

TYPES OF LIGHTING

NATURAL LIGHTING

Daylight (using windows, skylights, or light shelves)

can be used as main light during daytime in buildings to save energy

importance of daylight

Daylight in buildings makes people happier and saves energy. Studies show it improves mood, health, and productivity, leading to benefits like increased sales and faster recovery in hospitals. So, it's worth the cost to design buildings with good daylight.

ARTIFICIAL LIGHTING

Artificial light sources are created by combining specific parts of the optical spectrum. The way these parts are mixed determines the color of the light and how objects look when illuminated.
Artificial light can be created by combining red (R),green (G) and blue (B) components

incandescent light or filament light

fluorescent or discharge

Low pressure lamps

High pressure lamps

GENERAL LIGHTING
TASK LIGHTING
ACCENT LIGHTING

3 Basic Types of Artificial Lighting

Ambient/General Lighting

provides overall illumination for a room,

Task Lighting

Targeted to a particular area of a room

intended to illuminate a specific function.

Accent Lighting

also known as highlighting, is used to draw attention to specific objects such as artwork, sculptures, or plants.

It can also be used outdoors to highlight features like trees or water features.

Typically achieved with recessed or track lighting,

allows for precise focus on a particular area or object.

LUMINAIRE

There are basically two types of luminaries:

Stationary

Movable

DOWNLIGHTS

most common method, where fixtures in or recessed into the ceiling cast light downwards.

While popular in both offices and homes due to its ease of design, it can lead to glare and excessive energy consumption due to the large number of fittings required.

UPLIGHTS

often employed to bounce light off the ceiling and back down into a space.

This method is commonly used in applications where minimal glare and uniform illumination are desired.

By using a diffuse surface to reflect light, up lighting can reduce glare on glossy surfaces like computer displays.

It creates a uniform presentation of light output, but its effectiveness depends on the reflectance of the surface. While it can produce a diffused and shadow-free effect, indirect lighting is sometimes seen as economically inefficient.

PENDANTS

These lights are great for dining areas, offering functionality and style. They help people see clearly and can add elegance to the space.

suspended from the ceiling

WASHERS

Most visible surfaces: Vertical walls

Asymmetric lighting fixtures

Arranged in lines of three or more

Even illumination of walls

Tool used by lighting designers to creates lighter spaces

Enhances perception of brightness and height

Wallwashing

lighting design technique for illumination of large surfaces.

It's commonly used in contemporary architecture, particularly in public cultural buildings, museums, galleries, and landscape lighting projects.

SPOTLIGHTS

Lamp projecting narrow, intense beam

Directly on place or person

Especially used for performers on stage

Strong, focused light

Highlights specific spot

Used on small area of stage or TV studio

WALL SCONCES

Wall-mounted light fixture

Relies on wall for support

Light directed upwards, but not always

No base on the ground

Installed on interior and exterior walls

TRACKLIGHTS

Versatile lighting alternative

Ideal for hard-to-illuminate areas

Consists of individual lamps or lighting heads

Fits into tracks secured to ceiling

Various shapes and lamp sizes available

Suitable for modern, contemporary, and transitional designs

Lighting fixtures attached to continuous track device

Track contains electrical conductors

Track lighting

lighting method where light fixtures can be attached to a continuous track device containing electrical conductors.

This allows for flexibility in positioning the fixtures along the track to suit various lighting needs.

FREE STAND LAMPS

Mood lighting option

Ideal for bedrooms and living room corners

Available in various sizes, shapes, and designs

Enhances ambiance and atmosphere

ok

Types of Lighting Fixtures

• Architectural.

• Recessed.

• Track.

• Undercabinet.

• Pendants.

• Chandeliers.

• Wall Sconces.

• Desk, Floor & Table Lamps.

ok

Cove lighting

• Located in ledge, shelf, or recess high on wall

• Light bounced toward ceiling or upper wall

• Creates soft, indirect illumination

• Enhances ambiance and visual interest

Soffit lighting

• Located in soffit or cornice near ceiling

• Light radiates downward

• Washes the wall with light

• Creates soft, indirect illumination

• Enhances ambiance and visual interest

Valance lighting

• Positioned in wood, metal, or glass valance

• Mounted above window or high on wall

• Light bounces both upward and downward

• Provides dual-directional illumination

• Enhances ambient lighting in the room

Recessed

• Installed above ceiling, flush with it

• Requires at least 6 inches of clearance

• Insulation needed to prevent condensation

• Sends narrow band of light in one direction

• Can provide ambient, task, or accent lighting

gg

gg

Track

• Mounted or suspended from ceiling

• Linear housing with multiple heads

• Heads can be positioned anywhere along track

• Direction of heads is adjustable

• Commonly used for task or accent lighting

Undercabinet

• Mounted under kitchen cabinets

• Can be linear or single puck-shaped fixture

• Extremely popular as task lighting in kitchen

Pendants

• Suspended from ceiling

• Directs light downward

• Typically over table or kitchen island

• Enhances decorative style of room

• Provides ambient or task lighting

Chandeliers

• Suspended from ceiling

• Directs light upward

• Typically over a table

• Enhances decorative style of room

• Provides ambient lighting

Wall Sconces

• Surface-mounted to wall

• Can direct light upwards or downwards

• Covers or shades add stylistic touch

• Provide ambient or task lighting

Desk, Floor & Table Lamps

• Wide range of sizes and styles

• Versatile and portable

• Direct light downward (except torchiere)

• Torchiere directs light upward

• Used as task lights, especially for reading

• Can also provide ambient light

mo

mo

kk

kk