Selasa, 01 November 2011

Definition of Digital Camera and Working Principle


Hello, It's a material of convertion 2D, when this material study is a task in a lesson development of digital camera imaging system. So, I will share to you!
Definition of Digital Camera
The digital camera is a tool to create images of objects then refracted through the lens to the CCD sensor (there are also using censor CMOS) and the results were recorded in digital format into a digital media store.

Because the results are stored digitally, the recorded results of these images must be processed using a digital processor also a kind of computer or printing machines that can read the digital storage media.

The Ease of digital cameras is the result image known instantly, easy to be transfered, the color, sharpness, brightness and size are easy to be edited that can be done with relatively more easily than a manual camera.
Camera’s Working Principle
We capture the image of a tree using a digital camera. The light of a picture comes from a tree to a camera and into a camera lens. The task of camera lens is put the shadow of an image to the CCD censor.

CCD (Charge Coupled Device) as known as the CCD sensor is a device that captures an image size of a fingernail works or just take a micro sd card for mobile phones. CCD sensors have many points / grids are very sensitive to light. The resulting image will be higher resolution and more subtle if you have a lot of point sensors. The greater the number of sensor points directly proportional to the number of pixels generated. A CCD sensor can have millions in it. Brightness of each color RGB (Red Green Blue) will be stored in a single point sensor. So the task is to capture the CCD analog signal / image and convert it into electrical signals.

The process of image compression formats (eg RAW / JPEG) by the way digital cameras work done on the image processing section that converts electrical signals into digital signals by the converter ADC (Analog / Digital Converters).

After the image is converted into a digital signal, it will be processed by a computer chip processors that each camera. Additional features provided in the form of chip software (firmware) that have different abilities depending on the digital camera manufacturers (example: Casio / Kodak / Canon / Pentax / Olympus) is.

Software on the camera also determines the final image produced. Some features available such as sepia, black & white, backlight, white balance, face recognising, anti shake, super steady shot, vibration reduction, etc...

The last process is the workings of digital cameras to send digital data to be stored on the memory card. SD or CF is one example of a digital camera's memory card.

Ok, I think enough. And I will share about Digital Camera’s Components soon.

Definition of Digital Camera and Working Principle
Created: Muhammad Tsani A. Hakim
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