Light Lunette

Lunette

A lunette is a crescent- or half-moon–shaped or semicircular architectural space or feature, variously filled with sculpture, painted, glazed, filled with recessed masonry, or void. A lunette may also be segmental, and the arch may be an arc taken from an ellipse. A lunette window is commonly called a half-moon window, or a fanlight if its muntins diverge radially.

Light

Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometers (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared and the ultraviolet, called collectively optical radiation.

light

Noun

1. Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers): visible light.
2. Electromagnetic radiation in the wavelength range visible to the human eye or in nearby ranges (infrared or ultraviolet radiation).

Verb

1. To start (a fire).
2. To set fire to; to set burning.

lunette

Noun

1. A small opening in a vaulted roof of a circular or crescent shape. .mw-parser-output .defdate{font-size:smaller}
2. A crescent-shaped recess or void in the space above a window or door. a lunette in the Thomas Jefferson building of the US Library of Congress