Simulating Luminance in Zemax
By Olov von Hofsten | Luminance is arguably the most important component to analyze when evaluating a lighting design since it answer the fundamental question, “What will it look like?”. In Zemax you get easily get the luminance for an entire surface, but not the local luminance or luminace maps. However, there are ways around [&h
Setting up a camera lab
By Henrik Eliasson | Measuring the image quality of a camera is no small task. If you are setting up a lab for this purpose, there are quite a few considerations to take into account and expensive equipment to buy. You need to think about the room for the lab itself, its size and layout. […]
Sharpness and resolution, part II
By Henrik Eliasson | In the previous post we looked at the relation between optical resolution and sharpness. We could see that there is no clear correlation between the two. In this post we will complicate things a little by including the pixel resolution (we therefore assume a digital camera) into the mix. The last […]
Sharpness and resolution, part I
By Henrik Eliasson | Sharpness is one of the most important image quality attributes for a camera. Often, the sharpness and resolution of a camera system are confused and used interchangeably. In this post, I hope to sort out some of the confusion. Figure 1. Same scene captured with two different lenses. In Figure 1, […]
7 Best Zemax Tricks and Tips
By Olov von Hofsten | At Eclipse we use Zemax a lot, everyday actually. But although we know the optics necessary to make optimal optical designs, knowing a software’s hidden shortcuts is not always the same. We recently had Alissa Wilcynski from Zemax give us a three-day course at our site in Stockholm. The course […]