The electric current which travels through a coiled tungsten wire in the bulb from the power source can most likely be modelled by a computer, illustrating how the current is carried in a wire by bumping electrons off, the atoms or molecules that make up the wire. This bumping creates energy thus creating heat and furthermore light. A fundamental problem which one can account for is that fluctuations in power output result in damage to the light bulb.
As touched upon briefly the power source too can be regarded as a setback. For instance if there is too much current flowing through the bulb the filament can burnout and thus damaging the bulb further making it inoperative. On the other hand however if there is limited flow of current running through the light bulb, there is very little light emitted making the light bulb inefficient in places where maximum light is needed. Another problem is that the filament must be of a certain thickness in order to compensate with the rate at which power is being supplied.
The glass shell being free of all oxygen and being sealed at all ends is vitial, as tungsten if comes in contact with oxygen causes it to egnite with disasterous concequences. The filament being of right thickness is also crucial otherwise the bulb will not work. It can be said that the manufacturing of the light bulb has to be strictly controlled.
As regards to the design of the light bulb, it can be said that the light bulb has to be designed so that the filament burns out before the glass shell breaks or cracks. This means that various checks have to be conducted as part of development further illustrated through means of a statistical model. Although ordinary light bulbs are disposed of after they have been used to their full capacity, various Energy saving light bulbs work on a principle known as fluorescent lighting. In this type of bulb, a gas is encased within a glass tube coated with a layer of phosphor. When electricity passes through the gas, it emits ultraviolet rays which cause the phosphor coating to glow. This is more energy efficient because most of the energy is turned into light instead of heat.
As one addresses the light bulb in terms of safety aspects, it can be suggested that a light bulb can be a hazardous object in terms of manufacturing faults or if misused. A model has to be constructed in order for various safety checks to be conducted. E.g. is it dangerous if the bulb is smashed while the light bulb is in use?
Can the light bulb be removed immediately after it has fused?
A throw-away bulb is fairly cheap however, a energy saving bulb is more efficient. Can the two properties be combined in anyway in order to manufacture the end product sufficiently and cheaply as well as being launched on the market successfully?
Modelling as regards to ergonomics should be carried out to investigate whether or not the design is practical? Does it provide light efficiently and to its maximum capacity as regards to its design? Sizes and shapes of various components in the light bulb have to be considered, is halogen, neon lighting more efficient?
