For colour perception to occur, what two factors must be met?
There needs to be light since light gives us the ability to generate colour sensations in the brain and there needs to be an object because colour perception depends on the amount of incident light that it is able to reflect (colour seen) and/or absorb (colour not seen).
What colour is seen when all visible light is 100% absorbed?
Black.
What colour is seen when all visible light is 100% reflected?
White.
What specification of colour is used by architects and design engineers?
The RAL colour system.
What are the human factors that affect our ability to see?
The optical performance of the eye, colour perception and the general condition of the eye.
What are the environmental factors that affect our ability to see?
Relative brightness of the task and its surroundings, glare from the task or surrounds and movement in the task.
List two low Kelvin colour temperature installation examples?
Restaurants and bread aisles.
List two high Kelvin colour temperature installation examples?
Swimming pools and seafood aisles.
Elaborate on what the colour code is?
The colour code is a 3 digit numerical value describing the lighting quality of a white light source. The 1st digit deotes colour rendering properties and the 2cd and 3rd denote colour temperature in Kelvin.
What are the quality classes lamps are divided into?
Class 1A: 90-100 1B: 80-89
2: 60-79 3: 40-59
4: 20-39
What types of lamps offer the best quality white light at the expense of electrical consumption?
Incandescent lamps which offer 1A quality.
What Kelvin and code resemble natural daylight?
A Kelvin of 6500K with a 865 code.
