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Oil lamp

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An oil lamp is a device designed to produce continuous light using a liquid fuel source.

Glas Oil Lamp
Glas Oil Lamp

While candles provide light by burning solid wax, oil lamps require a container to hold their liquid fuel. This container is known as a fuel chamber or a fuel reservoir. Throughout human history, oil lamps served as a primary alternative to candles before the invention of electric lighting. Today, their use is less common for basic illumination, but they remain important for creating ambience or providing light during emergencies.

Diya
Diya

The mechanism of an oil lamp relies on a simple but effective process. First, a textile wick is placed inside the lamp so that it drops down into the fuel reservoir. Once the end of the wick is lit, the flame begins to burn the fuel. As the fuel burns, the wick draws more liquid upward through a process of capillary action. This allows the lamp to provide a steady, continuous flame. This method ensures that the light can last much longer than a simple open flame.

Oil lamp Fandaqomiyah
Oil lamp Fandaqomiyah

Lamps can be categorized by their material, shape, and design. They have been crafted from various substances, including clay, silver, bronze, gold, stone, and slip. In the ancient Mediterranean, archaeologists have identified seven major typological categories. The earliest were wheel-made lamps, which were simple and lacked decoration. Later, the Early Imperial period saw the rise of Volute lamps, which featured spiral, scroll-like ornaments called volutes. High Imperial lamps were also produced, characterized by wider shoulders and smaller discs. Other specific styles include the Egyptian Frog lamp, which used the Heqet fertility symbol, and the oval-shaped Slipper lamps found in the Levant.

Group of ancient hellenistic an roan oil lamps
Group of ancient hellenistic an roan oil lamps

Historical evidence shows that humans have used oil lamps for many millennia. Curved stone lamps have been found in locations dating back to the Mesolithic period, around 10,300 to 8,000 BC. The oldest stone-oil lamp was discovered in the Lascaux cave in 1940, which was inhabited between 10,000 and 15,000 years ago. Some researchers suggest that shell-lamps may have existed more than 6,000 years ago. The technology for lighting evolved significantly over time. In 1780, the Argand lamp was introduced and quickly replaced older, basic designs. By approximately 1850, kerosene lamps became the standard, remaining in use in rural areas until the widespread adoption of electricity in the 20th century.

千灯馆新石器时代石灯
千灯馆新石器时代石灯

Fuel sources for these lamps have varied widely depending on geography and era. Historically, people used oils derived from plants, such as olives, sesame seeds, flax, or castor beans. They also utilized oils from nuts like walnuts and almonds. Animal fats were another common source, including ghee, fish oil, whale blubber, and seal oil. During the decline of the whale oil industry in the 1830s, products like camphene and burning fluid became popular. Camphene was made from purified spirits of turpentine. Eventually, petroleum-based kerosene became the dominant fuel. Modern emergency lamps often utilize gas or petroleum-based fuels to ensure reliability when electricity fails.

Oil lamps hold profound significance in many religious traditions around the world. In Judaism, lamps symbolize lighting the way for the wise and the righteous. The seven-branched Temple Menorah is a central ritual object in the Chanukah story. In Christianity, oil lamps, often called *kandili*, are used to illuminate icons and altars in various churches. In Islam, the Quran uses the metaphor of a lamp in a niche to describe divine light. Hinduism utilizes oil lamps extensively in temples and home shrines. For example, in North India, a five-wick lamp is often fueled with ghee. In South India, specific styles like the Nilavilakku, a tall brass lamp on a stand, are common.

Lighting-a-lamp
Lighting-a-lamp

Understanding the physical components of a terracotta lamp helps reveal how they were used. A typical lamp includes a fuel chamber, a shoulder, and a pouring hole for adding fuel. The wick is placed in a wick hole or an elongated nozzle. Some nozzles feature a groove designed to collect oozing oil and return it to the pouring hole. Many lamps also include a handle, which might be ring-shaped or oval. Some handleless lamps use a diagonal lug to allow a user to steady the lamp with their thumb. Interestingly, some pierced lugs may have been used to hold a small tool, called an *or*, to trim the wick.

Oil Lamp Christian Symbol
Oil Lamp Christian Symbol
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🖼️ Images & Media (21)
File:Group of ancient hellenistic an roan oil lamps.jpg
Group of ancient hellenistic an roan oil lamps.jpg
File:DiwaliOilLampCrop.JPG
DiwaliOilLampCrop.JPG
File:Oil Lamp Christian Symbol.jpg
Oil Lamp Christian Symbol.jpg
File:Wahaya sukunda.jpg
Wahaya sukunda.jpg
File:Korea-Horongbul-01.jpg
Korea-Horongbul-01.jpg
File:Glas Oil Lamp.jpg
Glas Oil Lamp.jpg
File:Oil lamp Fandaqomiyah.jpg
Oil lamp Fandaqomiyah.jpg
File:Three Oil Jews lamps from Sardegna MUSEO NAZIONA SANNA SASSARI.jpg
Three Oil Jews lamps from Sardegna MUSEO...
File:Saint Mercurius, bishop of Smolensk.jpg
Saint Mercurius, bishop of Smolensk.jpg
File:Paavai-vilakku8.JPG
Paavai-vilakku8.JPG
File:Deepalakshmi56.JPG
Deepalakshmi56.JPG
File:Malaysian god shrine.jpg
Malaysian god shrine.jpg

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