Lenses - Articles - Page 3 | Quality Magazine

A calibration grid seated on a piece of tooling above a red backlight.

Machine Vision Applications: The Process of Developing a Complete Solution

The first step is to establish the requirements and determine if it is possible.

September 1, 2017

The term machine vision can imply a computer having a set of eyes for an inspection. To develop a complete solution for machine vision applications, vision engineers execute a series of tasks that usually fall into five categories: plan, design, build, integrate, and validate.

Figure 1. How the modulation transfer function (MTF) of a lens affects an image, as it is projected onto a sensor. Source: Stemmer Imaging

Choosing a Lens for Machine Vision

Not surprisingly, with the enormous range of sensor formats and resolutions available in machine vision cameras, there are many options for lenses.

Mark Williamson

September 1, 2017

All machine vision systems rely on the production of an image of sufficient quality to allow the required measurements to be made.

Straight and True: Telecentric Lenses for Metrology and Quality Assurance

THE HIGH ACCURACY INHERENT IN TELECENTRIC LENSES IS OFTEN THE MOST COST-EFFECTIVE WAY TO SOLVE A MEASUREMENT PROBLEM.

Nicholas Sischka

September 8, 2015

Precision lenses do an excellent job conveying contrast and color from object to image, but they can do a poor job of transferring accurate dimensions, especially if they have small focal lengths.

Machine Vision Systems

Machine Vision Components

Learn what to keep in mind when selecting machine vision components.

Perry C. West

July 2, 2014

“We’ll just put a camera there.” Sounds easy, doesn’t it?

When to Consider Inline Illumination

It is critical to consider characteristics of the object you’re imaging and the information you need to extract from the image.

Nicholas James

January 3, 2014

The choice of illumination can often mean the difference between success and failure of an imaging system.

Vision & Sensors - Lenses

Imaging Lenses Explained

Understand what you can expect to achieve from your imaging lens.

Nicholas James

September 11, 2013

Last time we discussed resolution, working distance, depth of field and field of view, and this time we will be diving into distortion, relative illumination and telecentricity.