Lighting

Question 1

What is Light?

Answer 1

Light is a portion of the visible spectrum of electromagnetic radiation detected by the human eye.

Question 2

True or False. The eye works like a camera.

Answer 2

True. The cornea’s refractive power bends the light rays in such a way that they pass freely through the pupil the opening in the center of the iris through which light enters the eye. The iris works like a shutter in a camera. It has the ability to enlarge and shrink, depending on how much light is entering the eye.

Question 3

What do we need light for? ( List the 4 needs )

Answer 3

1. Safety
2. Comfort
3. Ambiance
4. Particular tasks

Question 4

Name the 2 sources of light.

Answer 4

1. Natural
2. Artificial

Question 5

List the benefits of Natural Light. ( There are 4 )

Answer 5

• Increased Vitamin D
• Regulates circadian rhythm
• Provides a sense of well-being
• Improves productivity

Question 6

List the disadvantages of Natural Light. ( There are 3 )

Answer 6

• UV damage
• Hard to control glare and reflection
• Increased heat

Question 7

What are the different ways to control natural light? ( There are 6. Name at least 3. )

Answer 7

1. Site and landscape orientation
2. Landscaping
3. Size, shape and depth of openings
4. Glass type
5. Opening covering
6. Control of reflection
   ( Passive solar Design )