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This candlestick is used to hold a single candle in place. Candles and candlesticks are frequently used in religious rituals and for spiritual means.

Front View of a Candlestick

This candlestick is used to hold a single candle in place. Candles and candlesticks are frequently used…

Illustration modeling the illumination on a surface when the surface is not perpendicular to hte rays of light from a source of light.

Illumination of a Surface When the Surface is not Perpendicular to the Source

Illustration modeling the illumination on a surface when the surface is not perpendicular to hte rays…

The incandescent light bulb is a source of electric light that works by heat driven light emissions. An electric current passes through a thin filament, heating it until it produces light.

The Light Emitting Incandescent Lamp

The incandescent light bulb is a source of electric light that works by heat driven light emissions.…

An artificial source of visible illumination.

Candle Lamp

An artificial source of visible illumination.

A lamp that burns illuminating gas

Gas Lamp

A lamp that burns illuminating gas

Any of various devices furnishing artificial light, as by electricity or gas. Cf. fluorescent lamp, incandescent lamp.

Incandescent Lamp

Any of various devices furnishing artificial light, as by electricity or gas. Cf. fluorescent lamp,…

Lamp that generates light by heating a filament.

Incandescent Lamp

Lamp that generates light by heating a filament.

An artificial source of visible illumination, an oil lamp that will not ignite flammable gasses.

Miners Safety Lamp

An artificial source of visible illumination, an oil lamp that will not ignite flammable gasses.

A piece of furniture holding one or more electric light bulbs

Portable Lamp

A piece of furniture holding one or more electric light bulbs

A lamp supported on a lamppost; for illuminating a street

Street Lamp

A lamp supported on a lamppost; for illuminating a street

A lantern is a portable lighting deice used to illuminate broad areas, in this case intended for use with bicycle riders. These may be used for signaling, or as general light sources for camping.

Bicycle Riding Lantern

A lantern is a portable lighting deice used to illuminate broad areas, in this case intended for use…

An often portable case with transparent or translucent sides for holding and protecting a light.

Lighting Lantern

An often portable case with transparent or translucent sides for holding and protecting a light.

The illumination of a Koran link border is a scroll design of leaves connected like a chain. This design is found on the tomb of the Sultan El-Ghury in Egypt.

Illumination of a Koran Link Border

The illumination of a Koran link border is a scroll design of leaves connected like a chain. This design…

A man, probably a monk, illuminating a manuscript. He sits at a large table with easel. The man is barefoot and wearing a robe with a hood.

Man Painting an Illuminated Manuscript

A man, probably a monk, illuminating a manuscript. He sits at a large table with easel. The man is barefoot…

"In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination by Mr. Hutchinson, dockmaster of Liverpool. In his work on Practica Scamanship, published in 1777, he states that the Mersey lights were fitted with reflectors formed of small fucets of silvered glass, and made, as he says "as nearly as they can be to the parabolic curve." This is unquestionably the earliest published notice of the use of parabolic reflectors for lighthouse illumination." —The Encyclopedia Britannica, 1910

Parabolic Reflector

"In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination…

"In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination by Mr. Hutchinson, dockmaster of Liverpool. In his work on Practica Scamanship, published in 1777, he states that the Mersey lights were fitted with reflectors formed of small fucets of silvered glass, and made, as he says "as nearly as they can be to the parabolic curve." This is unquestionably the earliest published notice of the use of parabolic reflectors for lighthouse illumination." —The Encyclopedia Britannica, 1910

Parabolic Reflector

"In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination…

This lamp post is featured as a standard for many roads as a mean of illumination for drivers throughout the night.

Lamp Post

This lamp post is featured as a standard for many roads as a mean of illumination for drivers throughout…

"An instrument for directing a powerful beam of electric light for the purpose of search, illumination, or signalling."—Finley, 1917

Searchlight

"An instrument for directing a powerful beam of electric light for the purpose of search, illumination,…