Stray light entering a lens can cause glare when recording video or still images. Glare causes a reduction in video quality. In particular, in a dark environment glare from stray light or sunlight can cause a “washed out” effect that makes details difficult to see. Glare can be reduced using a visor to block stray light.
Conventional glare protection using visors does not take into account a shape of the lens. In particular, when a wide angle lens is used the recorded video or still images have a distorted wide angle lens effect. The wide angle lens produces an image that is curved on the top. Conventional visors assume straight edges on all 4 sides of the recorded image. Conventional visors block stray light by using a flat edge design. Using conventional visors with a wide angle lens results in too much glare due to stray light coming in at the top between the straight edge of the conventional visor and the curved image captured using the wide angle lens.
It would be desirable to implement a glare visor for security cameras.