Starting point generation for imaging systems under practical constraints

Abstract

Starting points have a tremendous impact on the subsequent design process. Besides the lens specifications, further required practical constraints can play a major role. Here, we apply the 'First Time Right' method to generate constraint initial systems and use PanDao's fabrication chain modeling to quantify fabrication aspects from the beginning.

Realizing ‘First Time Right’ designs of imaging systems using off-the-shelf lenses

“…Building on this idea, we have further developed a stock-based lens generator tool that leverages the capabilities of the automated 'First Time Right' (FTR) design tool 4,9 . This new tool allows users to quickly generate stock-based imaging systems from scratch or from the lens specifications of previously developed custom lens designs.…”

“…Figure 3. Layout of the FTR optimized machine vision lens F/12.5, 6.3 mm EFFL, -0.11 magnification, distortion < 3.52% and diffraction limited 9 . Layout in the dashed-line box is a zoom version of the same system.…”

“…This example demonstrates the SLG tool's ability to "stockify" custom systems. We have used the lens data from the FTRoptimized version of the machine vision lens provided in the Samples folder of Zemax (file 3-2-3-2_Machine-vision_Fig-3-26.zmx) by R. Siew, which was discussed in the publication 9 . Figure 3 shows the ray-tracing layout of the machine vision lens F/12.5, 6.3 mm EFFL, −0.11 magnification, which performs limited by diffraction at the wavelength range 0.4 𝜇𝜇𝜇𝜇 to 0.7 𝜇𝜇𝜇𝜇.…”