Table 10.
ISC-178x Resolution Configurations
Model
Resolution
ISC-1780
640 x 480
ISC-1781
1280 x 1024
ISC-1782
1920 x 1200
ISC-1783
2592 x 2048
Field of View
The field of view is the area under inspection that will be imaged by the ISC-178x. It is critical
to ensure that the field of view of your system includes the object you want to inspect.
To calculate the horizontal and vertical field of view (FOV) of your imaging system, use the
following equation. All models of the ISC-178x have square pixels that are 4.8 µm on each
side. Use that value for the Pixel Pitch. The Active Pixels can be obtained from the image
sensor configuration table or the specifications for each model.
��� =
����� ����ℎ × ������ ������ × ������� ��������
����� �����ℎ
where
FOV
is the field of view in either the horizontal or vertical direction,
Pixel Pitch
measures the distance between the centers of adjacent pixels in either the
horizontal or vertical direction,
Active Pixels
is the number of pixels in either the horizontal or vertical direction,
Working Distance
is the distance from the front element (external glass) of the lens to
the object under inspection, and
Focal Length
measures how strongly a lens converges (focuses) or diverges (diffuses)
light.
The following figure illustrates horizontal field of view and working distance.
ISC-178x User Manual
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© National Instruments
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17
Summary of Contents for ISC-1783
Page 1: ...ISC 1783...
