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Lighting

History of Lighting: – Early artificial lighting included campfires and torches – Primitive oil lamps made from natural materials were used by prehistoric people – […]

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History of Lighting:
– Early artificial lighting included campfires and torches
– Primitive oil lamps made from natural materials were used by prehistoric people
– Candles, glass, and pottery lamps were invented
– Whale oil was a significant advancement in lighting cost reduction
– Kerosene refinement by Abraham Gesner led to brighter and cheaper lighting

Lighting Fixtures:
– Light fixtures serve as holders for light sources and provide directed light
– Fixtures come in various styles for different functions
– Material choice for fixtures must consider heat tolerance and safety codes
– Luminous efficacy measures usable light per energy used
– Color temperature of white light sources impacts their applications

Impact of Lighting:
– Proper lighting enhances task performance and improves area appearance
– Daylighting can save energy by reducing the need for artificial lighting
– Indoor lighting is essential for interior design
– Lighting is a key component in landscape projects
– Improved nighttime lighting has led to more activities at night and reduced urban crime

Types of Lighting:
– Lighting includes both artificial sources like lamps and natural illumination
– Daylighting uses windows, skylights, or light shelves as the main light source
– Gas lighting powered street lights in major cities in the early 1800s
– Electric lighting became ubiquitous in developed countries
– Electric lighting led to the disappearance of segmented sleep patterns

Lighting Technology:
– The discovery of fire led to the earliest artificial lighting methods
– Primitive oil lamps were filled with grease and had a fiber wick
– Whale oil was a major lighting source until the discovery of kerosene
– Gas lighting was used in street lights and commercial buildings
– Electric lighting, starting with arc lights and incandescent bulbs, became prevalent

Lighting (Wikipedia)

Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.

Acropolis of Athens illuminated at night
Illuminated cherry blossoms, light from the shop windows, and Japanese lantern at night in Ise, Mie, Japan
Daylight used at the train station Gare de l'Est Paris
Low-intensity lighting and haze in a concert hall allows laser effects to be visible

Indoor lighting is usually accomplished using light fixtures, and is a key part of interior design. Lighting can also be an intrinsic component of landscape projects.

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