If you are referring to the screen surrounding the catalytic converter of the exhaust system - - - it is there to prevent people and objects from accidentally touching the EXTREMELY hot surface of the converter and being badly burned or starting a fire.
If parallel rays (for example sun rays witch are almost parallel) falls on concave mirror, they are gathered at a point, where maximum heat can be generated and it is very small point,witch is called real focus. As we can take it on screen, it is called real focus.
why does my ford focus over heat when i turn the ac on
to focus your eyes
no
The concave shape of a cinema screen helps to direct light more efficiently towards the audience, creating a more immersive viewing experience. This shape also helps to maintain a uniform focus across the entire screen, reducing distortion and improving clarity for viewers.
The touch screen may respond to touch by sensing the heat of your finger
battery produces heat touch screen does not require pressure
In touch focus devices, the user can select which part of the image the camera should focus on by touching the corresponding object in the viewfinder. Touch focus is available only in cameras with a touch screen.
The liquid crystals in the screen are sensitive to heat. The screen could be damaged.
to prevent heat radiation and damage by people or animals
Yes, it helps your cornea focus on the screen better
Water pump maybe?