History of Headlights

Car headlights are having something in it, which always fascinates the buyers. A car lover should have a sharp eye on the design of headlights and its placement over the car, because it is not only illuminating the way but also gives a stylish look to the car. Now it is necessary to know about the history of the headlights and what are the different kinds of headlights used in the past. Well, the first electric car headlight was introduced in the year of 1898 on the Columbia Electric Car from the Electric Vehicle Company. But before of it, people were started using headlights fueled by oil or acetylene in the year of 1880. These kinds of headlamps were very famous among the car lovers because the flame was resistible to wind or rain. Electric headlamps did not get such popularity as oil headlamps got because electric headlamps needed very large dynamos and had short life span of filaments.


A lot of modification was done in the making of headlights like, Guide Lamp Company in the year of 1915 introduced dipping or low beam headlamps. After these low beam headlamps, Bilux bulb was introduced in the market that provided low and high beams of light from the same bulb. In the year of 1938, Cadillac’s introduced fog lights which can work in the foggy weather. These fog lights were situated generally on the top of car for the ease of driver. Fog tail lamps are even famous for helping others drivers too. 
As technology advanced, advancement came in the design of headlamps too.  Optical systems of headlights were modified to a large scale to ease driving as smooth as possible. Dual beam reflector headlamps were introduced into the car for safe driving in the night time. It gave the solution for high brightness of headlamps. Projector lamps were the more technological modifications which provide accurate beam focus and with adjustable low and high light beam. These are also known as bihalogen projectors.


Light sources have been modified a lot since many years. Previously headlamps are illuminated by either acetylene or big sized dynamo but now tungsten filament or xenon gas is the light source. In 1980, Tungsten filament was placed inside the bulb in an inert environment to glow but the main disadvantage with it was it gave less light as compared to its consumption. But in 1983, halogen technology was introduced which made tungsten filaments more efficient producer of light. Dichroic coating over tungsten halogen bulb gave more power to the headlamps which generated more light with the same power consumption over other halogen bulbs. Xenon headlights were first used by BMW 7 -series which was more accurate as compared to halogens lights. These xenon headlights are known as HID headlights, where HID signifies HIGH INTENSITY DISCHARGE.  The main advantage of HID over tungsten bulb is that, these HID headlamps are having strong beam pattern. But these HID headlights are having some disadvantages like such as relatively high cost and hazardous mercury content.


To overcome all these disadvantages, engineers developed LED light sources and playing an important role in the headlight technology since 2004. LED means LIGHT EMITTING DIODES which are more sophisticated than halogen bulbs or xenon headlights. LED is electronic build and temperature sensitive. But due to its compatibility it is nowadays famous among car manufacturers.


At the very end, it is very necessary to discuss about color of headlights. The color of the bulb is very important since it can affect the intensity of light thrown and obviously regarding style. There are various color codes like black housing, chrome, smoked black etc available in the market. These colors are getting various changes for the past centuries.
 

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