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Which light is preferred if three dimensional features are being inspected?

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in Engineering Metrology by (829k points)
Which light is preferred if three dimensional features are being inspected?

(a) Front lighting

(b) Side lighting

(c) Backlighting

(d) Any lighting is suited

I have been asked this question in an internship interview.

Asked question is from Principle of Working topic in portion Machine Vision Systems of Engineering Metrology

1 Answer

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Best answer
The correct choice is (b) Side lighting

The explanation is: Side lighting or structured lighting may be required when a three-dimensional feature is being inspected. The proper orientation and fixturing of part also deserve full attention. Selection of proper illumination technique is important for any feature.

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