subject: Head Torches: Almost 100 Years Of Innovation [print this page] From mining to medicine, head torches are one of the most common sense inventions in the history of modern technology. Ever since man acquired the ability to control illumination, the development of the head torch was only a matter of time.
In the 1900s, these head torches gradually became popular for other uses besides providing light for miners. The ability to angle light where it was required by simply pointing one's head made these hands-free head torches invaluable in surgery and dentistry. Auto mechanics, plumbers, cave explorers, campers and rescue workers also benefited from this practical device, which increased efficiency and reduced accidents and injuries.
For many years, these head torches required a separate battery pack that was heavy and had to be carried on one's back. In 1973, climbing and caving enthusiast Fernand Petzl developed an innovative head torch design that was lighter and more compact than other models that existed at that time. Instead of being a separate device that had to be attached to a hat or helmet, the illuminating component was permanently attached to an elastic strap to be worn around one's head. The batteries were now incorporated in the head unit itself, eliminating the need for awkward bulky batteries, special backpacks and wires.
In the 1980s, halogen bulbs became popular for use in head torches. With a longer life span than regular incandescent bulbs and also a much brighter light emittance, halogen light bulbs were quickly incorporated in head torches. Unfortunately, halogen bulbs are more costly and they also drain batteries much more quickly than other types of bulbs. They also burn extremely hot, requiring special mounting so that fires and burns are avoided. Additionally, halogen bulbs are so bright that they should not be looked at directly without the risk of eye damage, so some sort of shading apparatus is also necessary. Although these drawbacks make halogen head torches inconvenient for many purposes, they are the best choice for situations where illumination at a distance is required.
In 1999 manufacturers started to use LED lighting technology in flashlights. The fact that LED bulbs were much smaller and more lightweight than other types of bulbs made them perfect for use in head torches. LED bulbs also produce much brighter and whiter light than the traditional incandescent bulbs, but do not hurt the eyes as halogen bulbs can. LED bulbs also require much less energy to operate, making the batteries last much longer. In addition, LED light bulbs can also last forever. The cost effectiveness, brightness and reliability of LED have made it the most popular and commonly used light bulb for head torches today.
Head torches are now available in a wide range of different styles and prices. There are general use head torches and head torches specifically designed for use in specific industries and activities, including medicine, emergency rescue, mechanics, mountain climbing and scuba diving. Head torches are generally available from specialty stores and on the Internet.
