Illumination

Introduction

Nature and Sources of Light

Relative Sensitivity

Radiant Sensitivity

Definition of Luminous Flux

Definition and Relation of Plane and Solid angle

Luminous Intensity

Illumination

Luminous efficiency

Depreciation Factor

Coefficient of Utillization

Space to Height ratio

Reflection factor

Laws of Illumination

Design of illumination schemes-Factors to be considered for design of illumination scheme

Calculation of illumination at different points, considerations involved in simple design problems for indoor installation, illumination schemes, standard illumination level

Natural day light illumination (brief information)

[Different sources of light

• Incandescent lamp
• fluorescent lamp

and comparison between them]

[Incandescent and discharge lamps – their construction and characteristics

• Mercury vapour lamp
• Sodium lamp
• Halogen lamp
• Compact fluorescent lamp
• Metal halide lamp
• Neon lamps
• Xenon lamps
• Electroluminescent lamp-LEDs
• LASERs

Comparison of all above luminaries]

Flood lighting

Industrial lighting