How can I change the FOV of a system?
Another way to change the FOV of a system is to use either a varifocal lens or a zoom lens; these types of lenses allow for adjustment of their focal lengths and thus have variable AFOV.
What is AFOV and how is it related to sensor size?
From this definition, it can be shown that the AFOV of a lens is related to the focal length ( Equation 1 ), where f f is the focal length and H H is the sensor size ( Figure 1 ). Figure 1: For a given sensor size, H, shorter focal lengths produce wider AFOV’s.
How does the focal length affect the AFOV?
For a given sensor size, the shorter the focal length, the wider the AFOV. Additionally, the shorter the focal length of the lens, the shorter the distance needed to obtain the same FOV compared to a longer focal length lens. For a simple, thin convex lens, the focal length is the distance from the back surface of the lens to the plane
What is an example of a horizontal FOV?
Example 2: For an application using a ½” sensor, which has a horizontal sensor size of 6.4mm, a horizontal FOV of 25mm is desired. By reviewing a list of fixed magnification or telecentric lenses, a proper magnification can be selected.
What is the difference between anamorphic FOV and fixed FOV?
FOV in Hor+ video game in 16:10 resolution. FOV in Hor+ video game in 4:3 resolution. Anamorphic refers to when both the vertical and horizontal components of the FOV are fixed, typically to values comfortable on a widescreen picture, and when the resolution changes the picture is letterboxed to maintain the field of view and aspect ratio.
What resolution is FOV in Hor+ video games?
Field of view (FOV) in Hor+ video game in 16:9 resolution. FOV in Hor+ video game in 16:10 resolution. FOV in Hor+ video game in 4:3 resolution.
What is the difference between FOV and Hor+ scaling?
In games with Hor+ scaling, the vertical FOV is fixed, while the horizontal FOV is expandable depending on the aspect ratio of the rendering resolution; a wider aspect ratio results in a larger FOV.
What is the relationship between focal length and FOV?
Additionally, the shorter the focal length of the lens, the shorter the distance needed to obtain the same FOV compared to a longer focal length lens. For a simple, thin convex lens, the focal length is the distance from the back surface of the lens to the plane of the image formed of an object placed infinitely far in front of the lens.