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Lighting Design Fundamentals

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Questions and Answers

What happens to light when it enters a new medium at a different angle?

It is reflected back into the original medium

It maintains its original direction and speed

It is absorbed by the medium

It is refracted and produces a visible color spectrum (correct)

What is the primary function of color temperature in lighting design?

To determine the direction of light

To gauge the color rendition of light

To measure the brightness of light

To measure the yellow or blue tint of light (correct)

What is the purpose of a high color rendering index (CRI) in lighting?

To reveal the true colors of objects faithfully (correct)

To produce a warm ambiance

To reduce glare

To increase the brightness of light

What is the term for the ability of a light source to reveal the colors of objects faithfully?

Color rendering index Signup and view all the answers

What is the result of extremely bright light sources or strong brightness contrasts in the visual field?

Glare Signup and view all the answers

What is the term for light that enters your eye and interferes with your vision?

Glare light Signup and view all the answers

What is the primary purpose of safety lighting?

To ensure visibility and reduce the risk of accidents or dangerous situations Signup and view all the answers

Which type of lighting is designed to provide a relatively high level of illumination over a small area?

Local lighting Signup and view all the answers

What percentage of emitted light is distributed upward in semi-indirect lighting?

60%-90% Signup and view all the answers

What is the primary goal of indirect lighting?

To avoid glare and prevent shadows Signup and view all the answers

What is the primary characteristic of general diffuse lighting?

It emits light in all directions Signup and view all the answers

What is luminous flux adjusted for in order to correlate with human brightness perception?

The varying sensitivity of the human eye to different wavelengths of light Signup and view all the answers

What is the minimum contrast value needed for the human eye to distinguish differences between an image and its background?

0.02 (2 percent) Signup and view all the answers

What is the purpose of lighting accessories such as prismatic lenses and diffusers?

To distribute light evenly Signup and view all the answers

What is the attribute of visual perception that a source appears to be radiating or reflecting light?

Brightness Signup and view all the answers

What is the term for the maintained brightness and avoidance of excessive brightness that is irritating to the eyes?