The lens.
The camera diaphragm controls the size of the aperture, which is the opening through which light enters the camera. By adjusting the size of the aperture, the diaphragm regulates the amount of light that reaches the camera sensor, allowing for proper exposure of the photograph.
The CCD is the part of the camera that changes the light that enters the camera into a digital signal that is then saved on the memory card. You can think of it as where the film would be in a regular 35mm film camera.
A camera shutter is like a curtain that opens and closes to control how long light enters the camera. When the shutter opens, light enters the camera and hits the image sensor or film. The longer the shutter is open, the more light enters, and the brighter the image. The shutter speed determines how quickly the shutter opens and closes, affecting the amount of light that reaches the sensor.
When you click the camera the shutter behind the lens of the camera opens briefly and lets in the light on to the film. I am no specialist and this is what I learnt in school.
The aperture in a camera is controlled by the diaphragm, which is a mechanism that can be adjusted to change the size of the opening through which light enters the camera.
The functional opening is the aperture, the opening that controls the amount of light that hits the photosensitive surface. You may have a camera with interchangeable lenses that screw into and out of the camera's body. The opening into which the lens is screwed is not the aperture.
The pupil is the center round black part of the eye. This is where the light enters into the retina. The human pupil works much like the aperture of a camera.
The energy that enters any kind of camera through the lens is called light.
An aperture in a camera works by adjusting the size of the opening through which light enters the camera. By changing the size of the aperture, the amount of light that reaches the camera's sensor can be controlled. A smaller aperture lets in less light, while a larger aperture lets in more light.
The image formed on the screen of the pinhole camera is inverted because the aperture, which is a small hole, bends the light that enters the camera. This basically shows that light travels in straight line.
The shutter.
The aperture on a camera is located within the lens, specifically behind the diaphragm. It controls the amount of light that enters the camera and affects the depth of field in the resulting image.