Exploring the Scheimpflug Principle: Depth and Clarity in Imaging | OFH
Introduction The Scheimpflug principle is a fundamental concept in optics, particularly in the realm of photography and imaging. Named after its inventor Theodor Scheimpflug, this principle provides a systematic approach to achieving extended depth of field in photographs and precise focus control in optical systems. At its core, the Scheimpflug principle addresses the challenge of […]
Understanding Rayleigh Range: Key to Laser Beam Propagation
Introduction When working with lasers it is important to understand the physical parameters that define system performance. While some of these specifications may be readily recognizable, such as wavelength and divergence, others may be lesser-known, yet equally critical metrics. For instance, concepts like the M-factor, beam caustic, and Rayleigh Range often have immense significance in […]
Mastering Spot Diagrams: Analyzing Optical System Quality | OFH
Introduction to Spot Diagrams As optical engineers, we use different tools and techniques to evaluate the performance of an optical design when simulating the system in a ray tracing program. One of those tools are spot diagrams. They may be a little bit confusing to use at first but are an excellent way to communicate […]
5 Applications of Cylindrical Lenses
Introduction When thinking of a ‘lens’, most people have the image of a spherical lens in their mind, but there are different geometries for lenses, and one of the most common is the cylindrical lens. What’s the difference between spherical and geometrical lenses? And what applications require cylindrical lenses? In this article we will discuss […]