Imaging Optics Flashcards
1
Q
5 terms that define Image Quality?
A
Resolution
Contrast
Distortion
Perspective
Depth of Field
2
Q
Definition of FOV?
A
The viewable area of the object under inspection.
3
Q
Definition of Resolution?
A
The minimum feature size of the object.
Objects have resolution
Cameras have resolution
Lenses have resolution
Systems have resolution
4
Q
Definition of PMAG?
A
Primary Magnification. The ratio between the sensor size and the FOV.
5
Q
How do we measure resolution in Optics?
A
Frequency of lines is represented in line pairs over a linear spacing.
Bar Targets
Orthogonal bars
6
Q
What binds Resolution and Contrast?
A
Modulation Transfer Function
7
Q
Typical limiting contrast?
A
10 - 20%.
The human eye can define resolution at 1 - 2% contrast.
