Advanced Apochromatic Lens Design for Exceptional Imaging Quality
In an achromatic lens design, we optimize such that two wavelengths, usually red (590nm) and blue (495nm), focus on the same image plane. This is done to reduce chromatic aberration. In this article, we’ll talk about a similar design type called an Apochromatic lens design. What is an apochromatic lens? The goal of the apochromatic […]
Powering advanced optical design with liquid lenses
Liquid lenses, are a type of optical lens that have a tunable focal length by shaping a liquid electronically. These lenses can be based on voice coil actuation, or based on electrowetting technology, which involves manipulating the surface tension of a conductive liquid droplet by applying an electric field. The core component of an electrowetting-based […]
Mastering Relay Lens Design: Enhancing Optical Systems | OFH
Introduction Optical relays, an integral component of various optical systems, play a crucial role when the user’s proximity to the observed object is limited or when specific image transformations are required. A prevalent example of this is found in relay lenses, often employed in scenarios where physical closeness to the object is impractical, as seen […]
The Role of F-theta Lenses in Laser Scanning
Introduction to f-theta Lenses In the landscape of optical systems, the introduction of f-theta lenses is an important chapter, offering a solution to the challenges posed by traditional lenses in laser scanning applications. As laser technology becomes more prevalent in applications from engraving to intricate material processing, the need for precision and consistency in focused […]
Deciphering 4f Optical Systems: A Journey into Fourier Optics
Introduction A 4F optical system is a system architecture that uses Fourier Optics. In this article, we will explain why we need them and how to design a simple 4f correlator. We will leave out most of the mathematical derivations, but if you are interested in digging more in depth, we highly recommend “Introduction to […]