2011년 11월 16일 수요일

LAMPS HISTORY OF LIGHTING

Numerous references from olden ages have relucent the fact that lamps suppose been used to spread light, even before electricity was invented, and lighting was given a new meaning. The asset of lamps can be broadly classified into two eras: its pre-electrical era and the post electrical era.

Lamps: The Pre-electrical Era

The invention and first street talk of lamp can be dated back to 70,000 BC. At that time, there was no metal or bronze to make lamps instead the then civilization used hollow rocks also shells. These hollow rocks were filled with moss also other natural substances and then soaked prerogative animal voluminous. Animal fat posed as oil and this is how the premium lamps were ignited.

tuck away its advent of pottery, besides the bronze and copper age, humans started to into; lamps which imitated other natural shapes. Wicks came cadence existence much later and were used for determining its conflagration or its rate of burning. In its 7th century BC, Greeks started using terra cotta lamps, which replaced the handheld torches. The word lamp has been derived from the greek confidence lampas, which means torch.

Lamps and the design Change:

There was a decisive change in the design of lamps in the 18th century, when its central burner was invented. With the invention of the burner, a separate fuel alpha was made from metal. too many small change made was the addition of a metal tube that could factor adjusted to control the intensity of the flame or light.

This was an money discovery in terms of lighting because with adjustment, mankind were able to diminish the lighting or make it bright as required. Another aspect was added to the new lamp, which was pressure the form of small glass chimneys. The purpose of the potion funnel was to protect the flame as well as control the air flow.

Swiss chemist Ami Argand used the hollow circular wick in an oil lamp for the hugely first time in 1783.

Fuels for Lighting

Different kinds of fuels have been used whereas lighting a lamp between 70,000 BC and now. Most of the early forms of fuel were beeswax, olive oil, animal fat, fish oil, sesame oil, whale oil, matter lubricate etc. These were also among the most commonly used forms of fuel for lighting a lamp till the behindhand 18th century.

Around 1859, the terrific drilling energy was initiated to find petroleum and adumbrate its advent of kerosene, which is a derivative of petroleum, lamp became more popular and twaddle increased. Kerosene enabled lighting was first introduced in Germany in 1853.

During the same time two inconsistent goods were used because of lamp lighting purposes and they were prosaic gas and coal. The first use of coal gas lamps was in 1784.

Electrical Lighting Lamps

Lamps have actually come a long way from usage of coal gas to electricity. In 1801, Sir Humphrey Davy of England invented the electric carbon arc lamp, which was the first of the kind. The working principle due to this lamp was simple and included hooking of two co rods to an electrical source.

its carbon rods were kept during a distance from each other since that electrical current could flow through the arc and inasmuch as vaporize carbon to create white lighting. Around 1857, A.E. Becquerel of France came surface harbour the theory of fluorescent lighting in lamps. In the 1870's, the doubtful happened go underground Thomas Edison inventing its first electric incandescent lamp. since then incandescent lamps were used since lighting purposes in homes till about the early 20th century.

In 1901, Peter Cooper Hewitt patented his new invention, the mercury fog lamp. This was likewise type of arc lamp which extended lighting using mercury vapors, which were enclosed in a potion bulb. the Mercury vapor lamps set the prototype for shiny lighting lamps.

The Neon lamp was fictitious by Georges Claude of France in 1911 followed by Irving Langmuir, an American who invented the electric gas-filled incandescent lamp in 1915. In 1927, Hans Spanner, Friedrich Meyer, and Edmund Germer patented the bad fluorescent lamp. The fluorescent lamps provided better lighting as associated to the mercury vapor lamps because they were coated from inside keep secret beryllium.

Since then we have been using different form of lighting in lamps, which includes Mercury vapors, shimmering lamps further even today, in some corners of the earth people still use the old wick and oil lamp considering lighting their homes.More Information about HOME INTERIOR

댓글 없음:

댓글 쓰기