Steel or Silicon Nitride Balls for Optical Alignment?
For most optical alignment work, both Grade 5 chrome steel balls and Grade 5 silicon nitride balls make excellent reference spheres. Choose chrome steel when you need a bright return image or want the ball held in a magnetic nest. Choose silicon nitride when the ball will be handled often, must resist dents, corrosion and […]
What Belongs in an Optical Alignment Checklist?
An optical alignment checklist should identify the assembly, reference datums, measured optical features, instrument settings, acceptance limits, and results before and after final fixation. It should also point to the saved data and images that another engineer needs to verify the work. A centered spot is useful feedback; a complete record explains what that spot […]
5 Costly Optical Alignment Mistakes That Derail Research Labs (And How to Avoid Them)
Optical alignment errors cost research labs and manufacturing facilities thousands of dollars in wasted time, scrapped components, and delayed project timelines. A single misalignment can cascade into weeks of troubleshooting, missed deadlines, and compromised optical system performance. After decades of developing precision alignment tools and working with research institutions worldwide, we’ve identified the most common—and […]
PSM vs. Interferometer: When to Use Each Tool for Optical Alignment
Choosing the right metrology tool for optical alignment can significantly impact your project’s success, timeline, and budget. Two of the most powerful instruments available are interferometers and Point Source Microscopes (PSM). While both excel at precision measurement, they serve different purposes and offer distinct advantages. At Optical Perspectives Group, we help optical engineers select the […]