The angle between the optical axis and each the (millions of) chief rays is called (image side) chief ray angle. So if we use CRA , we mean the (image side) chief ray angle , say, the maximum of all chiefray of all pixels.

The Lens Chief Ray Angle (CRA) defines the angular relationship between the optical axis and the chief ray of the lens within an imaging system, crucial for optimal performance of the image …

The Lens Chief Ray Angle (CRA) is one of the underlying principles of optics and imaging systems, with this pivotal feature representing a key determinant in the quality of captured images.

In the domain of optics and imaging systems, the Lens Chief Ray Angle (CRA) stands as a fundamental concept, profoundly influencing the quality of captured images. To grasp its …

As described by FGR's article, sensors with a CRA of 0 have no shifting applied to the pixel microlenses. Sensors with a CRA of X have a micro-lens shift applied to distant pixels in the array designed to match wide-angle lenses with a matching CRA.

The chief ray is defined to pass through the axial point of the aperture stop, regardless of the size of the object. In other words, however small your aperture stop may be, it will never “cut away the view” of the object.

The chief ray is the axis of the unvignetted beam from a point at the edge of the field, and the radius of that beam at any cross section is equal to the marginal ray height in that plane.

2023年10月16日 · What is the lens chief ray angle? The lens chief ray is the ray path from an off-axis point that passes through the center of the aperture stop of the optical system. The lens chief ray angle or CRA is the angle of incidence of the lens chief ray with the image plane.

2024年5月15日 · In the domain of optics and imaging systems, the Lens Chief Ray Angle (CRA) stands as a fundamental concept, profoundly influencing the quality of captured images. To grasp its significance fully, let’s embark on an exploration of the nature and implications of the CRA.

2023年1月20日 · The chief ray angle (CRA) of a lens and the chief ray of a sensor affect image quality factors such as color shading and vignetting. The magnitude of impact from CRA mismatch can be approximated using the Difference of Squares.