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Bessel beam alignment of a single, partially constrained lens element
ABSTRACT In many lens assemblies, mounting constraints prevent independent adjustment of tilt and decenter making perfect alignment of individual elements impossible. This work models a plano-convex lens to compare several centering methods under partial constraint, including mechanical edge runout, image runout, center of curvature centration, and transmitted Bessel beam deviation. Although based on a single […]
The Point Source Microscope, a unique autocollimator
ABSTRACT The Point Source Microscope (PSM) utilizes infinite conjugate optics internally. When the microscope objective is removed, the PSM is an autocollimator. Unlike conventional autocollimators, which use a reticle pattern for illumination, the PSM employs a single-mode fiber. The PSM camera captures a well-focused, circular return reflection when a perfect plane mirror is aligned perpendicular […]
Recent Posts
- Determining Centering and Tilt Tolerances for Your Optical System
- Bessel beam alignment of a single, partially constrained lens element
- Understanding Opto-Mechanical Alignment in Optical System Design
- Choosing Between Portable and Lab-Based Optical Metrology Systems
- Choosing Between Interferometers and PSMs for Your Optical Lab