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2024
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What types of light sources are available for indoor lighting?
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【Brief Description】Lighting for indoor living and working spaces is collectively referred to as luminaires. These fixtures serve both decorative and functional purposes, utilizing incandescent lamps—including halogen lamps—along with fluorescent lamps, available in a variety of shapes and wattages. Indoor luminaires can be categorized into six main types based on their design: recessed lights, ceiling-mounted lights, pendant lights, wall lights, portable lamps, and track lighting.
Indoor lighting for living and working spaces is collectively referred to as luminaires. These fixtures serve both decorative and functional purposes, utilizing incandescent lamps—including halogen lamps—and fluorescent lamps in a variety of shapes and wattages. Indoor luminaires can be installed in six categories: recessed lights, ceiling-mounted lights, pendant lights, wall sconces, portable lamps, and track lighting.
A general‑purpose lighting fixture recessed into the ceiling, emitting light only downward. It is equipped with a diffuser, prism cover, or grille to minimize glare and broaden the beam of its optical components. OA lighting, designed for office automation environments, is a type of recessed luminaire that strictly controls the luminance of the light‑emitting surface in near‑horizontal directions. This ensures that images on computer monitors remain exceptionally bright, thereby reducing visual interference with screen content. The vast majority of recessed luminaires feature symmetrical light distribution; only a small number of wall‑ or vertical‑surface‑mounted fixtures, installed on adjacent ceilings, produce asymmetrical light patterns.
Ceiling light
Indoor lighting fixtures
Indoor light
A type of luminaire mounted on the ceiling surface, with all its components exposed. Based on its light distribution, it is classified into three types: fully diffused, downward‑diffused, and downward‑projecting.
① Omnidirectional type. It uses a diffusing or surface‑textured prismatic transparent lampshade to emit light into the surrounding space. During operation, the light source inside the shade is invisible, and the upward‑directed light illuminates the walls and ceiling. Therefore, in a room, using a light‑colored ceiling can maximize the reflection of light from the ceiling.
② Downward‑scattering type. A general‑purpose lighting fixture whose side panels are made of opaque or partially opaque materials, with light emerging from a translucent cover at the bottom. Very little light illuminates the ceiling.
③ Downward‑projecting type. A lighting fixture with a narrow beam angle, used for accent lighting or supplementary illumination. It is mounted on the ceiling to provide adequate light for visual tasks.
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