Lab- Reverse Engineering of a Disposable Camera By Analise levy


The casing of the camera protects all parts on the inside of the camera from damage and holds all the internal parts in place. This also prevents light from reaching the film before the shutter opens during a picture. The casing is a cheap plastic material that still makes the camera durable


Shutter opens and closes between the lens and film when the picture is being taken. It controls how long film is exposed to the light around. When this shutter realease is clicked the curtain slides open and exposes the film to light. After a certain amount of time the curtain will close.


The lens is a piece of glass or plastic that is curved. It redirects the beams of light that bounce off of it so that the beams come together and develop an image identical to the real scene. It slows the light down and when it comes in at an angle it bends in different directions making all the light rays from different directions meet at a point and create the image taken.


The film is an emulsion that is light sensitive and when the picture is taken, light reflects off objects in the camera view and comes through the lens striking the emulsion which allows the image to be recorded. The film preserves the image of what the camera has seen. To make the image colorful, there are layers in the film that records the different colors of the image.

Flash circuit:

The flash circuit makes a short flash of bright light when the shutter is released. This lights up the area in which the picture is being taken. There are 3 important parts to the circuit board making the flash. The battery provides a source of energy for the flash to run off of. The gas discharge tube produces flash. The electrical circuit is made up of many electrical parts that connect the power supply to the discharge tube.

gas discharge tube:

This tube is filled with xenon gas and it has electrodes on each end. The middle of the tube has a metal trigger plate that is hidden by a material that reflects and directs flash light forward. It conducts electrical current by moving electrons from one electrode to the other. The electrons then move, energize the xenon atoms, and emit the flash. The tube needs a lot of volts of electricity to have the amount of electrons needed to make the gas conductive. All of the parts in the


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