Image Courtesy of Shanghai-Optics
Shanghai-Optics Optical Processing

This case study presents an in-depth analysis of the optimization process for optical system design, specifically focusing on fixed-focus lenses. The study highlights the improvements made in lens design and material selection to enhance performance and manufacturability.

 Enhancing Fixed-Focus Lenses

  • The Double Gaussian Structure:

The double Gaussian structure is a popular design for fixed-focus lenses, characterized by its simplicity and high technical precision. Typically composed of six elements with meniscus lenses at the front and back, this nearly symmetrical structure effectively corrects aberrations such as coma, distortion, magnification, and chromatic difference of magnification. Despite its age, this design remains relevant due to its reliability and efficiency.

  • Design Refinement:

In the provided double Gaussian variant design, the first and fifth lenses are positive lenses with thin edges, which are prone to breakage during processing. The first lens has a diameter of 78mm and requires an edge thickness greater than 2.5mm, while the fifth lens, with a diameter of 48mm, needs an edge thickness over 2.2mm. The current design’s edge thicknesses fall short of these values, posing production risks. Expanding the outer diameters of these lenses is necessary to mitigate these risks and facilitate processing.

To read the entire case study, visit Shanghai Optics' website.

Sponsored Recommendations

March 31, 2025
Enhance your remote sensing capabilities with Chroma's precision-engineered optical filters, designed for applications such as environmental monitoring, geospatial mapping, and...
March 31, 2025
Designed for compatibility with a wide range of systems, Chroma's UV filters are engineered to feature high transmission, superior out-of-band blocking, steep edge transitions...
March 31, 2025
Discover strategies to balance component performance and system design, reducing development time and costs while maximizing efficiency.
March 31, 2025
Explore the essential role of optical filters in enhancing Raman spectroscopy measurements including the various filter types and their applications in improving signal-to-noise...