The Disposable Camera

The Disposable Camera The Disposable Camera Brief This report aims to explain and understand the fundamental workings behind the popular and revolutionary disposable camera. The connection between the Lens and the Film will have most emphasis and explanation where appropriate. This will be achieved by a physical dismantling and any online information available. Introduction Photography is undoubtedly one of the most important inventions in history. It has enabled people to capture and cherish moments in time and preserve them for years to come. During its developing life the disposable camera has become inexpensive to manufacture, and thus cheap to the consumer compared with other more ‘user adjustable opposites. The basic technology, first conceived in 1814, is fairly simple. It requires 3 standard elements; an optical element (the lens), a chemical element (the film) and a mechanical element (the camera body). It is the manufacture and assembly of these parts that create a precise image of what we see before us. The basic overview of the device Disposable cameras are all manufactured in the same manor; not to allow removal and reloading of the film. Instead, these single-use cameras are built around the film, with the main process of rolling it from one side of the camera to the other without a protective casing. When the user is ready to take a picture, they â€Å"point and shoot† at the desired subject and press the shutter release button. This button activates a spring-loaded piece of plastic that flicks open for a pre-defined length of time. The length of time is usually defined by the International Organisation for Standardisation (ISO); this is commonly regarded too as the â€Å"shutter† or â€Å"ISO† speed. The, now open shutter makes an impression on the film. All cameras work with the process of light thus the inside of a disposable camera must be very dark. The light that entered the camera is focused and captured on a portion of the photosensitive film, creating a photo image. This printed film is then advanced into the container on the right to stop any more light from continuing to expose the film. As this happens a new section of the film is moved into position. Once the film has been exposed, the physical camera body is no longer needed. To get the photos of the film it needs to be taken to a professional developer; here, the film is removed and developed (usually in a professional darkroom or in a commercial photo developing machine). The developed photos are then collected by the photographer while the casing is discarded or recycled. The FujiFilm 35mm Disposable Camera Under exposed photos have always been a criticism of disposable cameras, where not enough light is gathered through the pre-defined shutter mechanism. To combat this, the FujiFilm 35mm has a built in flash. To activate the flash, a little flap on the front of the camera has to be pulled up, See Fig.01. This flap connects a metal strip inside the camera to the circuit board causing a charge to flow. This moves electrical energy from the pre-installed battery to the transistor ready for the shutter release to be activated. As the user presses the shutter release button, the charged transistor releases its energy to the flash causing light. However, this only happens if the red LED is lit on the top of the camera (indicating the flash is fully charged and ready to use). The flash is usually in sync with the shutter to â€Å"Freeze† the image. The process in which the chemical film is pulled the correct distance for use with a new image is controlled by a series of gears on the top right of the camera. As the user turns the top right gear, the white gear (Fig.06) is pulled by the holes in the film; this pulls another gear until it reaches a â€Å"stop† position. This is how the camera knows when a new section of film is ready for exposure, also releasing the shutter button for the user to take another photo. Simply, the film that the light image is produced upon is useless on its own. It is actually the chemicals that are on the film that react to the input light to cause the end photo result. The chemicals on the film are Silver Halide salts which are bonded by gelatine. The variable crystal size determines the sensitivity, contrast and resolution on the film. The shutter mechanism is possibly one of the most important processes the camera must undertake through the capture process. Within the FujiFilm 35mm is relies highly on the springs to operate the removal of the shutter from the lens. As the user presses the shutter the white arm is released pushing a flap connected to the shutter. This pushes the shutter away from the lens, while the spring relocates it into the correct position. See Fig.07. At the same time the two circuit strips are connected, Fig.08. The Lens The optical element is an essential part to any camera as it angles the light entering the device into a standard that the camera can read. At its simplest, a lens is just a curved piece of glass or plastic, which can slow down and angle the light to redirect it into a â€Å"real image† what is in front of the lens. This make/model of camera incorporates a fixed lens; this basically means that the lens is not customisable by the user. In terms of taking a photo; an object cannot be focused upon if its too close to the camera. The process of taking a picture can be explained very easily. As light travels into a denser medium, at an angle, it changes speed; as glass and plastic are denser materials than air, the light slows down as it enters the camera. Due to the light hitting the medium at an angle, some of the light will slow down before the rest, causing a resultant change in angle. This is commonly referred to as â€Å"Refraction†. Put simply, imagine you are swimming through water; eventually you reach a patch of oil at an angle. The side of your body that hits the oil first will slow down while the opposite side will keep the same potential energy and momentum as before, thus causing a change in direction. In a standard converging or â€Å"Convex† lens, the glass curves out (away from the camera body). This makes the light bend towards the centre of the lens on entry. Effectively, this reverses the image horizontally. (Fig.09) A standard disposable camera gives a minimum distance from the â€Å"real image†. This is its focal range. Anything below the given distance will be processed blurry as the lens cannot refract the light enough to focus on the film. The amount the light is angled on entry is proportional to the structure and curvature of the attached lens. (Fig.10). Standard compact disposable cameras have an aperture (size of the shutter hole) in the range of f/11 to allow the image to be in focus from 4 feet to infinity. The standard lens used in cameras today is most commonly manufactured from a single moulded plastic sheet and mechanically pressed into the camera. Camera Recycling With the government clamping down on waste due to over consumption and the lack of re-using acceptable products, many companies now recycle disposable cameras. There are two options currently available; the first is to re-load the film and replace the original battery to brand new ones. The second is to send of the plastic parts, which are all fully recyclable, off to be remade into something else. Conclusions The disposable camera has become cheap, user friendly, inexpensive to manufacture and a brilliant way to capture images in time. Through many years of development, they have become smaller and more manageable becoming the device we all could not live without today. Although, by making it increasingly smaller and compact, its now fairly complex and contains a large number of parts, increasing the overall sale price. As a result, manufacture and assembly of the components would be very time consuming. The time has come for a completely robotic production and possibly a compact disposable camera that has the ability to place your SD card into and remove once the camera has been used. Bibliography 1. Overview of how the camera works http://electronics.howstuffworks.com/camera.htm 2. Camera electronics http://www.howstuffworks.com/framed.htm?parent=camera-flash.htmurl=http://www.exo.net/~pauld/activities/camera_electronics.html 3. History of the Camera http://en.wikipedia.org/wiki/History_of_the_camera 4. What is photographic film? http://en.wikipedia.org/wiki/Photographic_film 5. Manufacture of a disposable camera http://www.ehow.com/how-does_4925657_how-disposable-camera-manufactured.html

Political Identity

Political Identity can be referred to the collective aspect of the set of characteristics by which a political party of your choice is recognizable or known. Politics exists all around the world whether it involves the government, religion, debates, events, or individuals in general. It can be quite difficult to determine one’s Political Identity as this consists of various concepts. I am a follower of the Liberal Party of Ontario which is aligned with the Canadian Liberal Party. The following essay will be discussing the influences that have impacted me in order to create my own Political Identity.Politics consists of three distinctive categories such as, the Conservative Party, the Liberal Party and the New Democratic Party. The Liberal Party generally stands between the view points of both the Conservative Party and the New Democratic Party. This party has formed the Government of Ontario since the year 2003. The Liberal Party is extremely open to embracing changes and crea ting opportunities for individuals in our modern world. As in individual, I tend to follow a middle path in which I consider both sides of the decisions I make.I am also quite open to learning newer concepts and I have the ability to adapt to any changes that my arise. Thus I believe that my Political Identity lies with the Liberal Party as my actions can relate to the ones made by this party. As a child, I was unable to understand the concept of politics, though I was taught to support the Liberals. However now that I have matured, I have discovered why many individuals choose to support the Liberals, as opposed to the other political parties. Due to the positive attitude towards change, the Liberal Party is the reason why Canada is seen as such a multicultural country.The Liberal Party has helped changed the lives of many individuals that had been living an unfortunate life. If it were not for the Liberals, I would not be in such a well developed country. My parents had not been b lessed with such a pleasant life. They had came across many hardships in life and hoped that their children would not experience such a life. Throughout the 1970s, the Liberal Party granted permission for the Ismaili Muslims from Africa to enter Canada, in order to have a better lifestyle. This is when my parents fled from East Africa and entered Canada.Migrating to Canada has had a great positive impact on their lives, along with the lives of many others. Hence my family and friends have been voting for the Liberal Party for many years. This has impacted my Political Identity by a whole lot. There are many factors which contributed to the choice of my Political Identity Living in a society in which immigrants from all around the world are present, has assisted in shaping my Political Identity. While attending school, I am exposed to a variety of races. Therefore schools tend to enforce Liberalism as well.Due to this, many students choose to follow the Liberal Party. Not only do I f ollow the Liberals because I such a society, but also because the Liberals have given individuals the freedom of their choice. During the past, the women of Ontario were not granted the permission to abort their children. If one chose to give up her baby, she was to cross the border to fulfill her desire. However the Liberals brought a change in which a woman is free to act upon her choice. Also, same-sex marriages were not permitted at any costs.Yet recently, by law, individuals are allowed to wed any sex of their choice without being ridiculed. Although these acts may have seemed immoral in the past, they have come to be accepted by our society. I too feel that individuals should have the right of freedom when it comes to choosing what is best for their lifestyle. Thus I support the decisions the Liberals have chose to create based on our modern society. Overall, I believe that the Liberal Party is an exceptional party that has performed many changes that have been beneficially fo r many individuals.Although I felt compelled to support the Liberals because my family supported them, as a matured person, I now feel that the Liberal Party is worth supporting because not only has it assisted my the members of community, it has also assisted people from around the world. This party has also given individuals the right of freedom in order act upon their desire. Though it has limitations, the Liberal Party strives to strengthen its economy and create opportunities for its people. As a person, I believe it is important to accept change and keep oneself open to new opportunities. Therefore my Political Identity can be recognized as a Liberal.

Child Marriage in India Essay

Child marriage means that two children are forced to marry each other with the consent of the two families. The children are forced into the institution of marriage without knowing about its significance in the long run. Though parents are of the opinion that they involve their children in such rituals because it is an age old custom and it will also secure the future of their children but the reality is not so. Though in some cases parents believe in such superstitions and dogmas in other cases greed is the most significant factor. How can a girl’s future become secured if she gets married to a man who is 60 years of age while the girl herself is barely 14 or 15? Only their parent’s future will be secured with the amount of money the man and his family pay in return of the girl. This heinous crime cannot be termed as marriage it is simply selling of the girl child. The man will molest her at a tender age and at the same time he will kiss death pretty soon. The girl will end up being so horrified with the custom of marriage that she will dare not enter the institution again. A whole future filled with frustration and anger will result thereby. The sad news is that the institution of child marriage is still present in India in a number of villages and districts. Though the government has taken strict actions and child marriage has been declared as a big crime, still this practise is prevalent till today. The question that arises is that what can be done to stop this hidden crime? Apart from the measures taken by the government it is essential for colleges and other institutions like non- government organizations to make certain moves. It is advisable to approach such villages and districts and educate the parents about the ill- effects of child marriage. Though it is not easy to make them understand easily but you never know that which activity or step of yours can change their minds at any point of time. Short films, live plays can be shown to them and the moral behind these plays should obviously show the pathetic future of the kids who are forced to get married. More and more schools should be set up in such villages as a result of which people will sooner or later get their children admitted in schools. Such people should also be informed about the punishment given by the law and order of the country in an exaggerated way so that they get immensely scared even before thinking about such a crime. It is also advisable on the part of the government to take as strict actions as possible in order to abolish this institution completely. The path is tough but victory can be achieved if strict actions are taken. College students as a part of their college campaign can visit such villages and personally talk to the mothers of children explaining the ill- effects of child marriage in the lives of their children. It is easier to make a mother explain the problems her child would face because women are soft by nature. India is a developing nation and aims to become a developed nation in the near future, but can a developed nation have brides and grooms who have not yet attained adulthood. It is impossible for India to become a developed nation if child marriage is not abolished. Government should start an inquiry in such districts and villages and the homes where married couples under the age of 18 and 21 for a girl and a boy respectively are found, strict actions should be taken. The girl should be sent to her parent’s home and both the parents of the couple should be punished. There are places where mere words cannot change an individual’s heart. It is only strict action in the form of punishment that can alter their minds. The sooner this institution of child marriage is abolished the better for the whole nation. It is true that the percentage of child marriage has dropped over the years but still this institution exists. All the citizens should join hands to abolish this practice to make India a better place to live in.

The Immigration Of The United States - 1624 Words

Creating a Solution to Survive Pass the American Border Wake up America! Did you know that â€Å"Immigration accounts directly and indirectly for approximately two-thirds of current U.S. population growth†¦,† as John O’Sullivan states in his article â€Å"Tearing up the Country?† Our country is filled with people who leave their countries with the hopes of receiving an education and gaining more money to support their families. After introducing US aid to the farmers in third world countries many of them were assured a set price for their beans only to receive much less then promised causing farmers to become discouraged and unable to provide for their families and therefore, causing them to leave their countries coming to the America with the hopes of surviving. Many will argue that having them enter the United States is affecting our economy. Most of our daily necessities like coffee, cocoa, and coltan come from the countries they are leaving. To generate less immigration to the U.S. we as Americans should dev elop a fair, respectable solution that will ensure a direct connection from worker to buyer and that would benefit the citizens of these other countries like Belize, Guatemala, and Congo, directly. Perhaps if we open a direct line from the U.S to coffee producing farms, allowing the major companies here to choose which source they get their beans from and who produces them. Coffee is â€Å"the second largest worldShow MoreRelatedImmigration And The United States986 Words   |  4 PagesImmigration in the United States continues to increase rapidly year by year. According to an analysis of monthly Census Bureau data by the Center for Immigration Studies, the immigration population in the United States, both legal and illegal, hit a record of 42.1 million in the second quarter of this year, an increase of 1.7 million since the same quarter of 2014 (CIS.org). 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