CMOS pixel FOV

Discussion in 'The Projects Forum' started by Por Qué, Apr 15, 2013.

  1. Por Qué

    Thread Starter New Member

    Mar 31, 2013
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    Hi all,

    How do I calculate the field of view for one pixel of CMOS sensor ?

    Thanks.
     
  2. wayneh

    Expert

    Sep 9, 2010
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    Depends on the optics.
     
  3. Por Qué

    Thread Starter New Member

    Mar 31, 2013
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    How depends on the optics ?
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,145
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    The sensor doesn't know or care where a photon comes from. If one hits with enough energy, the sensor reacts. Same with a piece of photographic film.

    The directions from which photons may come depends on the physical arrangement and the optics. A film camera directs light from only a relatively narrow field of view onto the film. The FOV striking an individual film grain is, by design, very narrow. Lower FOV = higher resolution
     
  5. crutschow

    Expert

    Mar 14, 2008
    13,028
    3,238
    If you just expose the sensor directly to a scene with no optics then the each pixel basically sees 180 degrees of the scene, i.e. it will see no detail.
     
  6. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    Maybe another way to look at it is, if you want to capture say 100° of view and you have 100 pixels, the optics must be arranged so that each pixel captures just 1° each.

    You may want to read up on it, for instance here.
     
  7. Por Qué

    Thread Starter New Member

    Mar 31, 2013
    24
    0
    Ok I understand what you mean

    thanks a lot :)
     
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