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case study illumination

case study illumination

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ILLUMINATION CALCULATION AND DESIGN FOR SINGLE FAMILY DWELLING

PRINCIPLES OF ILLUMINATION

6 – 1 INTRODUCTION

Illumination is defined as the intensity of light per unit area. When we talk of illumination, or simply lighting, we are referring to man

made lighting. Daylight being excellent is not included, thus, we assume a night time condition.

Electric Illumination is the production of light by means of electricity and its applications to provide efficient, comfortable and safe

vision. Specifically, when one speaks of lighting design, he refers to only two things:

1. The quantity of light

2. The quality of light

Quantity of Light – refers to the amount of illumination or luminous flux per unit area.

Quantity of light can be measured and easily handled because it deals with the number of light fixtures required for a certain area.

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Quality of Light – refers to the distribution of brightness in the lighting installation. It deals with the essential nature or characteristics

of light. In short, quality of light is the mixture of all the items related to illumination other than the quantity of light which includes

several elements such as:

1. Brightness

2. Brightness ratio or contrast

3. Glare

4. Diffuseness

5. Color

6. Aesthetics

7. Psychological reaction to color and fixtures

8. Economics

There are four factors that affect illumination, namely:

1. Brightness

2. Glare

3. Contrast

4. Diffuseness

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ILLUMINATION CALCULATION AND DESIGN FOR SINGLE FAMILY DWELLING PRINCIPLES OF ILLUMINATION 6 – 1 INTRODUCTION Illumination is defined as the intensity of light per unit area. When we talk of illumination, or simply lighting, we are referring to man made lighting. Daylight being excellent is not included, thus, we assume a night time condition. Electric Illumination is the production of light by means of electricity and its applications to provide efficient, comfortable and safe vision. Specifically, when one speaks of lighting design, he refers to only two things: 1. The quantity of light 2. The quality of light Quantity of Light – refers to the amount of illumination or luminous flux per unit area. Quantity of light can be measured and easily handled because it deals with the number of light fixtures required for a certain area. Quality of Light – refers to the distribution of brightness in the lighting installation. It deals with the essential nature or characteristics of light. In short, quality of light is the mixture of all the items related to illumination other than the quantity of light which includes several elements such as: 1. Brightness 2. Brightness ratio or contrast 3. Glare 4. Diffuseness 5. Color 6. Aesthetics 7. Psychological reaction to color and fixtures 8. Economics There are four factors that affect illumination, namely: 1. Brightness 2. Glare 3. Contrast 4. Diffuseness Brightness is the light that seems t ...
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