Monday, September 22, 2008

Digital Camera Images Are Stored Electronically Rather Than On Film

Business.

The early digital camera - a digital camera is basically a digital device that enables images to be captured. This process involves converting light into electrical charges, and then translating this back into the image that was seen through the digital camera LCD. Digital camera images are stored electronically rather than on film.


Although the digital camera is a recent addition to the world of photography, the concept of the possibility of a digital camera was begun in the 1950s. - it began with digital images being recorded on scanners and in the form of digital video signals. The early concept of the digital camera was closely linked to television technology. In 1951 broadcasting companies were recording images as electrical impulses and onto magnetic tape from their television cameras, and this paved the way for digital camera technology to begin. The first record of a patent for a type of digital camera was in 1972 when Texas Instruments patented a camera that did not require film. By 1956 electrical impulse recordings were common practise within film industry, and camera manufacturers began to dream of a digital camera device. However, the patent revealed a more analog based design rather than a digital camera, and there is no record of whether the camera was actually created.


A pioneer in the history of digital camera was Steve Sasson, an engineer at Kodak. - what the patent does show, is that interest, however towards a digital camera was growing with the idea that the need for film could be removed. Digital images were of the moon were being transmitted via satellite by NASA, using a mosaic photo sensor, and he saw the possibility of a digital camera for commercial use. Central to this early concept of the digital camera, and still used by digital cameras today, is the Charged Coupled Device. In 1972 he began to group together available equipment used within the film industry to create an image digitally rather than on film. The CCD detects light and colour intensity and then converts this information into electrons.


Steve Sasson produced his first digital camera image in 197The image took a total of 23 seconds to take, and a further 23 seconds to read from the playback unit. - the value of each cell in the image is then read, and converted to binary format to make the image computer compatible. Although the digital camera image was less than perfect, it showed that the digital camera was a possibility. The first camera to be marketed was the Sony Mavica electronic still camera in 198It was not a true digital camera as the image was recorded on mini disc, and then attached to a television or video. Kodak had developed a camera that developed picture from light, but it was never manufactured for the public. It was more a freeze frame video camera but it greatly influenced people` s attitude to the recorded image. It still used more television technology but was the first hand held with the general idea of digital camera usage.


It made public the possibility of a camera that stored images using techniques other than film. - cameras that could transmit images via satellite became popular, but were used by the media only due to the expense incurred. The first camera for general use with a computer was the Apple Quicktake 100 camera which appeared in198In 1986 the Canon RC - 701 was used for coverage of the Olympics, with quality images printed in the newspaper. The possibilities were becoming apparent and images were used for news coverage. This showed the possible quality, and the desire for the digital camera was born. In 1987 accessories for storing, manipulating, printing, transmitting, and recording digital images came onto the market, with the Fuji DS - P1 arriving in 198This is arguably the first true digital camera as recognised today, boasting a 16MB memory card. The first mega pixel sensor was invented in 198It contained 4 million pixels and was suitable for a digital camera image measuring 5x7 inches.


With the arrival of JPEG and MPEG standards in the 1990�s, the face of the digital camera was changed for ever. - however the author' s name and all the urls( links) mentioned in the article and biography must be kept. Kodak marketed the first readily available digital camera that met all standards, with the Kodak DC40 in 199 This article is under GNU FDL license and can be distributed without any previous authorization from the author. Written by: Roberto Sedycias

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