Innovation And Technology Management Media
Ever since cameras were developed, it had evolved into many different types. This report will be focusing on the improvement of different types of camera, from film to digital used by consumers. A few case studies of camera makers will also be included to show how innovation affects each company.
A camera is a device that captures images and the images were stored in the device or transmitted to another location. These images may be still or moving images. Still images means photograph while moving images can be videos or movies. The term camera was from the word camera obscura which was an early mechanism used to project images.
Camera obscura is an optical device which can project surrounding image on a screen and used in drawing and for entertainment. Camera obscura consists of a box with an opening in one side. The light from an external scene passes through the hole and strikes a surface inside causing an image of the scene being reproduced but was turned upside down, with the color and perspective being preserved. The image will then be projected onto a piece of paper and traced which produced a highly accurate representation of the scene.
Figure 1: Drawing of camera obscura
A camera may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. It generally consists of an enclosed hollow box with an opening in one side for external light to pass through and a recording or viewing surface for capturing the light at the other side. Most of the cameras will have a lens being placed at the front of the camera's opening which is used to gather the incoming light and focus all or part of the image to the recording or viewing surface. The sizes of the opening are mostly controlled by using a diaphragm mechanism but some of them will use a fixed size opening. Most of the cameras today use an electronic image sensor for storing photographs on flash memory. Before that, from the 20th century, photographic films were used
For a typical still camera, it takes a photo at a time when the user presses the shutter button unless the user uses continuous fire mode. As for a typical movie camera, it continuously takes 24 film frames per second when the shutter is pressed and holds on until the shutter is released. Some movie camera works by pressing the shutter button once and the second time will stop it.
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