DIGITAL CAMERA

• Evolution

• Working of digital camera in brief(video)

• Working of digital camera in detail(according to flow of

filters)

• Working of digital camera in more detail ;-)

• A camera is anything that can record/store images

• Camera Obscura.

• DaguerreotypeProblem- It takes upto 15

minutes of exposureto fully capture the image

• Emulsion Plates It takes 2-3 seconds of exposure

time but had to be made on the spot.

• Portable cameras

• 35 mm film camera.

• Polaroid cameras

The era of digital camera

Architecture of digital camera

How a Digital Camera Works(1).mp4

Working of Digital camera

• Gives no reflection from water.• Cuts that straight wavelength.

• Light focuses on sensor• Aperture control amount of light entering• OIS move back and forth for image stabilization

• Anti reflection coating

• Some cameras- front shutters• Dslr cameras- behind the 45 deg mirror• Working of shutter

• Sensel- sensing element(to sense)• Pixel- picture element(for viewing or printing

depends on size of phy device).

• 2x green- to mimic the eye spectral response, i.e. eyes more sensitive to green

• Each target sensel color- matrix calculation of 9 adj cells.

• Light/photons falling on image sensor will generate charge

• Charge is directly proportional to light falling

• Stores the charges from photons

• So visible light can easily release electrons

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