Difference between revisions of "Digital camera"
Rebollo fr (talk | contribs) m (cat) |
m |
||
| Line 1: | Line 1: | ||
| − | Digital cameras have only optical elements like the lenses in common with traditional [[analog camera]]s. They use an optoelectronic chip (CCD) instead of a [[film]]. The lens projects the picture onto the CCD. The signals for brightness and colour of each singular smallest unit of the chip (pixel) are transfered into a digital memory device. Each digital picture is a file of such pixelwise informations. Usually a little one-chip-computer controls such a camera. This computer changes the raw file's format into a compressed file format, for example the JPEG-Format. Some cameras offer an option to let the camera store the raw data uncompressed. A serial interface for connection to a computer makes the image-files available for reworking them with imaging software. | + | Digital cameras have only optical elements like the lenses in common with traditional [[analog camera]]s. They use an optoelectronic chip ([[CCD]]) instead of a [[film]]. The lens projects the picture onto the CCD. The signals for brightness and colour of each singular smallest unit of the chip (pixel) are transfered into a digital memory device. Each digital picture is a file of such pixelwise informations. Usually a little one-chip-computer (camera processor) controls such a camera. This computer changes the raw file's format into a compressed file format, for example the JPEG-Format. Some cameras offer an option to let the camera store the raw data uncompressed. A serial interface for connection to a computer makes the image-files available for reworking them with imaging software. |
| + | |||
| + | ===Links=== | ||
| + | *[http://www.blueopal.com/pdf/digital_camera_inside.pdf "Anatomy of a digital camera" 2001 by Sally Wiener Grotta] | ||
[[Category: Digital|*]] | [[Category: Digital|*]] | ||
[[Category: Camera architecture]] | [[Category: Camera architecture]] | ||
Revision as of 20:39, 1 February 2007
Digital cameras have only optical elements like the lenses in common with traditional analog cameras. They use an optoelectronic chip (CCD) instead of a film. The lens projects the picture onto the CCD. The signals for brightness and colour of each singular smallest unit of the chip (pixel) are transfered into a digital memory device. Each digital picture is a file of such pixelwise informations. Usually a little one-chip-computer (camera processor) controls such a camera. This computer changes the raw file's format into a compressed file format, for example the JPEG-Format. Some cameras offer an option to let the camera store the raw data uncompressed. A serial interface for connection to a computer makes the image-files available for reworking them with imaging software.
