The light is so directed that it falls from the bright light strobe onto the white umbrella from where it gets reflected upon the subject.

This process helps in creating a softer look and reduces the degree of stark harshness of the white light. The concept of studio lighting can be explained in two categories, each of which is formulated on the basis of an individual manner of working.

The first category of studio lighting is that of Continuous light, while the second category of studio lighting is known as that of Flash light. Each of these two categories are known to have specific advantages and disadvantages.

In this article we will primarily touch upon the advantages and disadvantages of Continuous light. The concept of Continuous light entails two significant advantages which contribute greatly to the popularity in its usage and widespread demand.

These two advantages are responsible for popularizing the concept of Continuous light in studio lighting systems. The primary benefit of using Continuous lighting is that Continuous light is very inexpensive and hence it proves to be extremely cost effective and economical.

For those who are simply beginning in the field of production or cinematography or and industry making use of a studio lighting system, the restraints of working on a controlled budget can be met by using Continuous lights.

The second main advantage of Continuous light is that it is easy to adjust the lighting as per the needs of the user. This is possible because while using Continuous light it is easy to discern between the lighted portions and the areas in the shadows and hence controlling the effects of the light becomes an easy task. However, there are certain disadvantages of Continuous light as well.

One of these drawbacks is the fact that Continuous light produces a greater level of heat in comparison to the levels of light energy that it produces. As a greater amount of heat and lesser amount of light is produced, the concept is not entirely efficient.

Also, the heat that is produced is known to make the photographer and the models uncomfortable and hence adds to strenuous working conditions. Another disadvantage is in the fact that Continuous light causes the irises of the models’ eyes to close down, and while conducting a photo shoot with a specific emphasis on portraits, this can result in unsatisfactory pictures.

Photography requires an environment in which the models can maintain the desired “look” and the use of Continuous light is known to cause significant hindrance to this task. However, these problems can be resolved by employing the use of certain techniques and even by simple practices such as taking breaks between shots. There are three kinds of lights used in the photo shoots. These are the Key light, the Fill light and the Background light.

The mercury atoms upon gaining energy become excited and begin moving between states of excitement and rest. This creates an electric current and results in the mercury atoms emitting ultraviolet light in short wavelengths.

This causes the coating of phosphor to emit fluorescence and this gives off a white light. Contrary to incandescent lamps, fluorescent lamps constantly need a ballast. The ballast is used to control the power flow through the lamp.

Large fluorescent lamps are of use mostly in large commercial buildings and office complexes. Incandescent lamps and bulbs at homes have been slowly but surely replaced by fluorescent lamps and bulbs which prove to be more efficient, effective, energy maximizing and cost effective.

In comparison to incandescent lamps, fluorescent lamps make use of considerably lesser amounts of power and energy. It has been noted that the power used by fluorescent lamps is one fifth to one third less than the energy used by incandescent lamps.

Fluorescent lamps are being hailed as energy saving alternatives to incandescent lamps. Incandescent light bulbs have an exceptionally slight filament assembled from tungsten. The filament is sheathed in the interior of a glass orb.

The radiant bulbs show a discrepancy on the basis of the level of consumption of power and energy production. On the basis of these differences these bulbs are categorized into separate levels such as “75 watt” and “100 watt” and so on and so forth.

The conformist incandescent light bulbs work on a comparatively straightforward principle. Electrical energy is passed from end to end of the filament. Being extremely thing the filament presents extensive intensity of resistance to the electric current. Due to this resistance, the electrical energy gets transformed to heat. This heat energy is tremendously potent and it makes the filament “white hot”. It is this heat energy which is emitted as white light.

This causes the filament to glow which lends sheen to the light being produced in the light bulb. Incandescent light bulbs have one chief drawback and this is the fact that the heat energy translates into a lot of wastage of electrical energy. It is in distinction to this theory that compact fluorescent bulbs function.

Compact fluorescent bulbs have a fluorescent pipe which has electrodes fastened to both its ends. The tube encloses a gas which consist of argon and mercury vapor. The gaseous combination allows a steady flow of electrons to pass from one electrode to another. This stream of electrons upon making contact with with the mercury atoms lends energy to them and this causes the mercury atoms to getting excited.

The mercury atoms release ultraviolet photons which come into contact with the coating of phosphor and create the visible light. Compact fluorescent bulbs are far more proficient and effectual because they produce far less heat. Compact fluorescent bulbs are confirmed to be four to six times more efficient than incandescent light bulbs.

Compact fluorescent bulbs have a greater increased lifespan as compared to incandescent light bulbs, ranging from 6,000 to 15,000 hours. Due to all the benefits it holds over incandescent lighting, fluorescent lighting has become extremely popular.

In this article we shall discuss some important factors to keep in mind while purchasing the outdoor lighting system as well as the necessary techniques to employ while buying and installing the outdoor lighting system you have chosen.

Before buying the outdoor lighting system one should carefully decide upon one’s specific needs and wants. It is important to decide all the details of the budget, lighting, power and design requisites.

It is important to decide upon the lighting system on the basis of the function expected of the outdoor lighting systems. The average purpose of an outdoor lighting system is to aid in visibility.

It is used for lighting up pathways and garden areas. Outdoor lighting systems offer a variety of potions such as lighting up the entire expanse of the garden or even lighting up specific areas of the garden, in order to highlight particular features.

It is important to be specific of the purposes you want your outdoor lighting system to serve as most people wish to derive more than a single use out of their lighting system. However, it is important to prioritize between the tasks you wish your outdoor lighting system to perform as it can play an important role in determining the lighting system.

Being able to choose the correct lighting system is imperative. Taking the design style of your house and garden into consideration is important. There are various design options available such as certain traditional and conventionally aesthetic or funky bright colored lights which jazz up the entire atmosphere with a party-like feel. There are some techniques which have to put into use to achieve maximum efficiency out of the lighting system.

One of these techniques is that of Silhouetting. In this technique the lights are focused on a level, perpendicular surface which are placed behind the subject which is meant to be highlighted by the lighting system. For example, one can use an outdoor lighting system to highlight interestingly placed trees to give the effect of trees with a sunset in the background. The technique of Shadowing is in direct contrast to the technique of Silhouetting.

In this technique, the lighting fixture is positioned in front of the subject so that intriguing shadows are created on a vertical surface behind the object, adding an element of mysterious appeal to the visual setting. Another technique is that of Spot Lighting in which the lights are placed at a distance in front of the object to be emphasized. This helps in lighting up the entire subject and thus making it attention catching and appealing.

The Printed Circuit Board has two sides, referred to as the first and second side respectively. The Printed Circuit Board can be operated via the means of a connection with a light emitting diode.

This connection enables light flashing and also allows for a switch which is sensitive to vibrations. This switch is used for controlling the light emitting diode. This motion sensitive switch is affixed on the first side of the Printed Circuit Board.

The Printed Circuit Board is also attached to a strip of metal. Between this strip of metal and the Printed Circuit Board there is a dry battery placed. The dry battery is positioned between the metal strip and the second side of the Printed Circuit Board.

There is often a buckle attached to the shell which allows for the work light to be attached to an object of choice, for example an article of clothing or perhaps a show. Now that we have observed the structure of portable work lights, let us now look into the application of these appliances and the necessity of the invention. With increasingly varied youth culture, activities such as skateboarding and basketball and roller skating have become extremely popular amongst young adults.

Even though these sports have become wildly popular, there are few, if any specifically constructed places where children can indulge in these pastimes in an environment that is safe and protected. Hence, more often than not, teenagers take to the streets in order to pursue their interests. And most often, these sports are played in the evening or at night, when it is dark and the visibility is poor.

This poses a threat not only to the children, from vehicles but also to the drivers of automobiles as well, as they are unable to see the players clearly. While many people have tried using flashlights to signal an ongoing sport on a dark street, it is not convenient to do so as these flashlights cannot be attached to shoes, nor can they transmit a strong beam of light.

Out of this necessity for a lighting system that is easily attachable to apparel, does not fall off and can be affixed firmly, and emits a strong and eye catching beam of light arose the invention of portable light systems. Another example of portable work lights would be that of portable desk lamps. These lamps are much like ordinary lamps, except that they are compact, fold easily into a small shape, have a wire that can be wound easily around the frame of the lamp and despite the small size have a powerful light.

These lamps are extremely convenient as they allow the user to carry the light source along with him and due to the small size these lamps can easily be fitted into hand luggage. With the availability of electric sockets at most places, portable lamps are an easy to use and easy to transport appliance.

Incandescent light bulbs work on the principle of incandescence which refers to the emission of light through the transfer of heat energy via the method of radiation. Incandescent light bulbs have a very thin filament.

This filament is made up of tungsten. The tungsten filament is protected inside an outer body made of glass. This filament is heated up by passing an electric current through it. Being excessively thin, the tungsten filament offers a considerable level of resistance to the electric current passing through it.

This resistance helps in converting the electrical energy into heat energy. The heat energy is considerably influential and turns the filament white hot. It is this extreme heat which is visible as white light. As a result of this copious heat energy the filament starts to glow. This glow is the incandescence emitted by the light bulbs and this characteristic is responsible for the name “incandescent light bulbs”.

The glass casing stops the oxygen in the air from coming into contact with the filament as it would lead to oxidation of the filament. Incandescent light bulbs are available in a variety of sizes. Also the voltage of bulbs can differ greatly, ranging from as low as 1.5 volts to as powerful as 300 volts.

Some of the advantages of incandescent light bulbs are that they do not need any external equipment for regulating, and also the cost of producing these bulbs is very low. incandescent light bulbs are extremely convenient as they work well regardless of the current being used, be it Direct Current that is D.C or Alternating Current that is A.C.

Due to the extremely adaptable nature of these bulbs, they are widely used in homes as well as in offices for commercial purposes. Let us now observe the construction and structure of the incandescent light bulbs. The incandescent light bulbs are made of a glass casing which is called the envelope. This glass casing is filled with an inert gas. This inert gas works towards decreasing the evaporation of the filament.

This filament is made out of a wire of tungsten. An electric current is passed through this tungsten wire. The electric current causes the filament to heat up. The filament upon heating releases a light which forms a sort of continuous light spectrum.

Visible light is the functional and useful part of the light spectrum. However a major of the light emitted falls in the spectrum of infrared wavelengths. The glass casing of an incandescent light bulb can obtain temperatures approximating 400 to 550 degrees Fahrenheit which is the same as 200 to 260 degrees Celsius.

Newer and newer technologies are being developed while older technologies are either being modified and adapted to the constantly changing times or are being declared obsolete.

In the blink of an eye what is the rage today can be turned to the forgotten tomorrow. In this scenario, with science and technology galloping ahead at the speed of light, one of the most popular technologies to take over the market recently is that of the wireless instruments.

Wireless communication is an extremely useful technology which deviates into various branches, including that of a wireless lighting control system. Wireless systems are those which elementarily allow for the transfer and transportation of information and material over distances without relying upon electrical wires or any other conductors.

This helps in increasing efficiency and effectiveness by reducing the dependency on electric conductors. Wireless devices work on the system of electromagnetic waves.

Wireless lighting control devices allow one to manipulate the lighting system depending upon one’s wishes without having to undertake unnecessary trips to the switches every now and then. The basic advantage of using wireless devices is that they allow for actions over a long or short distance without having to depend upon a complicated electrical wiring system.

It is entirely convenient to be able to manipulate the lights without having to get up every now and then and also efficient and aesthetically appealing as there are no wires or conductors attached all over the house. Simply using a remote to control the lighting system is indeed an attractive option. Wireless technology does not make use of the conventional lighting systems. Instead, in place of an elaborate system of wires and plugs and sockets, wireless technologies call for the use of other forms of energy for conveying the electric signal.

For example, in the place of electrical wires, infrared light, laser light, acoustic energy and radio frequency are used in order to transport the information signal. Using a wireless lighting control system offers the customer a variety of advantages. We have discussed some of these advantages here in this article. For example, using a wireless lighting control system allows you to cover functions over a distance which more often than not will exceed the capability of a conventional system made of electric cables.

Another benefit is that incase of a power failure when the main power system stops operating, the wireless systems can still be used. Also, it allows for steady functioning in areas where using conventional cable wires is impractical or financially not feasible.

The first part is the lamp which acts as the source of the light. The second part of the unit is the reflector which is used for directing the light. The next part is the aperture which can be used with or without a lens.

Following the aperture is the outer shell which acts as a casing for the lamp and is used for the purposes of alignment and safeguard. The last two parts of the unit are an electrical ballast, which depends upon the needs of the user and of course, the connection to an electric power source.

Light fixtures are available in various assortments which range according to the needs of the user and the functions to be served by the appliance. Light fixtures are being utilized in a plethora of industries, ranging from those of medicine and marine research to the automotive and aerospace industries.

In this article we shall discuss some of the light fixtures which are available commercially. The portable table lamps which have become immensely popular for both domestic and professional use are an example of light fixtures. Chandeliers are another kind of light fixture.

Chandeliers have are very popular as they fulfill a double purpose. They serve the purpose of illumination while also adding an elegant sense of aesthetics to the surroundings in which they are placed. Pendant lights are akin to chandeliers as they to combine the concept of functionality and beauty.

Pendant lights are light fixtures which are suspended from the ceiling via the means of a durable but attractive chain. An extremely effective form of light fixtures is that of emergency lights. Emergency lights work as a backup system in the case of power failure.

These lights work on the basis of energy stored in a battery or on the basis of an electrical circuit which can get activated in the even of failure of the main source of power supply. Warehouses and industrial factories make use of strip lights or industrial lights which are a long line of fluorescent lights in a row, used to illuminate a long stretch of area.

Light fixtures are also used in outdoor lighting. They are used to provide light on walkways, driveways and parking lots. For the purpose of lighting up pathways lights are fixed at low levels close to the ground. To illuminate the areas under kitchen and bathroom cabinets, fixtures called under cabinet lights are used. Another example of light fixtures is Bollards which are a kind of lighting used specifically for architectural purposes.

These lights are built as short units that are mounted on the ground. Bollards are used to generate illumination which is cut off and provides light on specific regions of pathways and walkways and staircases.

Compact fluorescent have a longer life span than that of the conventional incandescent bulbs and they also utilize lower amounts of energy. However, as production involves a new technology, the cost of compact fluorescent bulbs is higher than the cost of incandescent light bulbs.

The light spectrum that is radiated by compact fluorescent bulbs is also different from the light spectrum given out by incandescent bulbs. This is due to an improvement in the formula of phosphor being used in the compact fluorescent bulbs. This has resulted in the creation of a pleasing softer shade of white light as compared to the light given by incandescent light bulbs. In the 1890s, Peter Cooper Hewitt created a compact fluorescent lamp which acts as the blueprint upon which the modern compact fluorescent bulbs are built. compact fluorescent bulbs were released in the markets across the globe in the 1980s and since then they have been on an ever increasing rise in the context of popularity, acceptance and acclaim.

An important advancement in the system of fluorescent lighting was the use of electronic ballasts in the place of electromagnetic ballasts. This has helped in minimizing the level of flickering and also the slow starting up process which has always been a hindrance associated with systems of fluorescent lighting. While being compared to incandescent light bulbs, compact fluorescent bulbs often prove to be more viable because of a variety of features. For example, the lifespan of a compact fluorescent bulb is said to be between 8 to 15 times more than the lifespan of an incandescent bulb.

Incandescent bulbs on an average have a lifespan of approximately 750 hours to 1000 hours. Presenting a stark contrast to this statistic, compact fluorescent bulbs are known to have a lifespan ranging between 6,000 hours to 15,000 hours. Incandescent bulbs too can be manufactured to have an increased lifespan, sometimes as high as that of 20,000 hours. However, this feature comes at the cost of a resulting poor quality and quantity of the light produced.

When discussing the energy efficiency of the two categories of light bulbs, once again compact fluorescent bulbs manage to score above the incandescent light bulbs. It is recorded that compact fluorescent bulbs utilize an amount of energy which is can be one fifth to one third less than the energy that it is used up by the conventional incandescent light bulbs.

Most people believe that the increased cost of compact fluorescent bulbs can be an economical hindrance but in actuality, if one considers the significantly increased lifespan of compact fluorescent bulbs as well as the greatly reduced amounts of power being used up, in the long run, the initially high cost gets balanced out in terms of lower running and maintenance costs.

Xenon Arc Lamps can be classified into two sub categories: the Continuous Output Xenon Short Arc lamps and Continuous Output Xenon Long Arc Lamps. Both these categories consist of an arc tube which is made out of glass or fused quartz. At each end of this tube are located metal electrodes made out of tungsten. The glass tube is initially emptied and then once again filled with xenon gas.

Xenon Arc Lamps were first produced in Germany in the 1940s. They were introduced into the markets in 1951 by Osram. There are two distinct varieties of Xenon lamps on the basis of the gas being utilized. The first category makes use of only pure Xenon gas. The second category makes use of a mixture of xenon and small quantities of mercury.

Xenon Arc Lamps make use of a low voltage Direct Current. They have a negative temperature coefficient. In 1991 the introduction of xenon headlamps in cars led to the widespread use of xenon lamps. In xenon long arc lamps the tube of glass is elongated and hence the arc is longer. Let us now discuss the workings of the Xenon Flash Lamps.

Xenon Flash Lamps discharge an electric glow. The lamps are designed in such a manner that they are able to produce intense, often disjointed portions of white light for limited periods of time. Xenon Flash Lamps consist of a sealed tube which is most often constructed out of fused quartz. The sealed tube consists of a mixture of gases. Out of these gases, the largest portion is that of the Xenon gas.

There are electrodes which work at carrying the electric current to the mixture of gases. A requirement of Xenon Flash Lamps is a source of power with high voltage. This high voltage power source is used to energize the mixture of gases. A capacitor with charge is used for the purpose of providing energy to the gaseous mixture. The tube which is mostly made out of glass can be straight or can also be built by bending it in a variety of other shapes. Some of the common shapes are the helical shape, the “U” shaped tube and the circular shape.

There are electrodes projecting out of both ends of the tube. The capacitor is charged with a relatively high current of 250 to 2000 volts. A flash of light is begun by ionizing the mixture of gases and further amplified by transferring a great amount of current through the ionized gas.

In the United States it was the efforts of the acclaimed inventor Benjamin Franklin that resulted in the system of street lights to be used in the United States for the first time.

Benjamin Franklin was the postmaster of Philadelphia, in Pennsylvania, and for this reason, most people regard Philadelphia to be the origin of the concept of street lighting in the United States. In the colonial era, the street lights comprised of a glass vessel which contained a lighted candle.

The glass structure did not allow the blowing wind to blow out the candle flame. The street lamps as designed by Benjamin Franklin were four sided, constructed out of four separate panels of glass. This was an efficient design, especially in the context of damage caused to the lamps, for incase any of the glass panes broke, it was not necessary to reconstruct the entire lamp, as simply replacing one pane would be enough.

In the year of 1792, William Murdoch invented the gas lights. After this invention, gas began being used to light the street lamps in the cities of Britain. Following this development, in the year of 1816, the streets of Baltimore in the United States began using gas lighting for illuminating the pathways as well. The concept of gas lighting for powering street lamps became extremely popular, and in some places in the United States of America one can still view gas lamps on the streets sometimes.

With the invention of Thomas Edison, light bulbs began being incorporated as a part of street lighting as well. Cleveland in Ohio in the year of 1879 became the first city to make use of an electric lighting system to illuminate the street ways. Due to the safety hazards posed by fire based street lights, their popularity began decreasing and by the onset of the 20th century people began searching for newer, more effective and secure methods of street lighting.

In the period of the 1930s and the 1940s, with a flourishing automobile industry, the usage of incandescent and fluorescent street lights became extremely well-liked and popular. In New York City, the massive number of lights used to light up the Broadway theaters became an attraction of sorts and earned the moniker of “The Great White Way”, a fitting tribute to the brilliant theater marquees lining the streets.

In the industry of street lighting there were two chief competitors, the Westinghouse Company and General Electric. There are several categories of luminaires that are used. One of these categories is the Unistyle Lumnaires which are recognized by their vaulted and arched apex and a front end which slopes forward. A very popular category of luminaires is the Silverline Luminaire. They have been remodeled and adapted to modern usage, and one of the new characteristics is a light grey coloring. They are also referred to as Greyliners.