 Different Lighting Scheams are :- 1. Direct Lighting 2. Semi- Direct Lighting 3. Indirect Lighting 4. Semi- Indirect Lighting 5. General Lighting.

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Presentation transcript:

 Different Lighting Scheams are :- 1. Direct Lighting 2. Semi- Direct Lighting 3. Indirect Lighting 4. Semi- Indirect Lighting 5. General Lighting

In this the light is directly made to fall on the working plane. If proper reflectors are used then about 80-90% of the total light is made to fall on the working plane.

In this semi-direct reflectors are used. As a result % of the total light flux is made to fall on the working plane and the remaining light is used to illuminate the ceiling and wall.

In this lighting scheame more than 90% of the total light flux is thrown upward to the ceiling for diffuse riflection by usin inverted or bowl reflectors.

In this lighting scheame 60-90% of the total light flux is thrown upward to the ceiling for diffuse riflection and remaining light reaches the working plane directly.

The basic requirment of general lighting is to obtain uniform diffused and glare free lighting. This can be obtained by fluorescent lighting.

CLASSIFICATION Approximate Light Distribution up wards Approximate Light Distribution down wards Direct0-10%90%-100% Semi-direct10%-40%60%-90% indirect90%-100%0-10% Semi-indirect60%-90%10%-40% General40%-60%

The various factors which should be considered while designing a lighting scheme:- 1. Illumination Level: Illumination level should be sufficient for different locations to avoid glare and shadows. 2. Uniform Illumination: Lighting scheme for particular location should provide uniform illumination as far as possible.