An off-axis parabolic mirror (OAP) is a type of aspherical mirror that consists of a small section cut out from a larger, so-called “parent” parabolic mirror. OAP mirrors are designed to focus or collimate broadband light without introducing spherical aberration
Improved image quality: Off-axis parabolic mirrors have a larger field of view and produce sharper, distortion-free images with no spherical or coma aberration. They are therefore useful for applications that require high-quality imaging, such as astronomy, microscopy, and laser focusing.
Reduced astigmatism: Off-axis parabolic mirrors have a reduced amount of astigmatism compared to spherical mirrors. Astigmatism is an optical aberration that can cause images to appear distorted, particularly when viewing off-axis.
Compact design: Off-axis parabolic mirrors can be designed to be more compact than traditional parabolic mirrors, which require a larger size to achieve the same optical quality. This makes them useful in applications where space is limited, such as in telescopes or camera lenses.
Improved light collection: Off-axis parabolic mirrors can collect more light than spherical mirrors, especially when used with a detector or sensor that is located at the center of curvature. This makes them useful in applications where a high degree of light collection is important, such as in solar concentrators or laser beam steerin