Lens Bending

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In this video, I delve into the concept of lens bending, an important technique in optical design used to minimize optical aberrations within a system. Lens bending involves altering the shape factor of a lens while keeping its focal length constant.

By adjusting the shape factor, which defines the curvature of the front and back surfaces of the lens, it becomes possible to optimize specific aberrations—particularly spherical aberration, which can significantly impact the clarity and quality of an optical system. This process allows designers to enhance the performance of the lens without changing its fundamental optical properties, such as its focal length.

I will also demonstrate how modifying the shape factor affects the light path and the resulting image quality, highlighting why lens bending is a crucial tool for achieving superior optical performance in systems like cameras, telescopes, and eyepieces.