WebTo measure the angle between the optical axis and the chief ray on the image side the following method is used: The lens under test is illuminated by the collimator at different angles corresponding to the object sided chief ray angles. The detector head is moved to the image field position at which the lens focuses the image. WebNov 21, 2013 · Chief ray angle (CRA) A chief ray is the ray from an off-axis object point which passes through the center of the aperture stop of an optical system. The chief ray enters the optical system along a line …
Why is the chief ray angle important? - opticsdan.com
WebMar 31, 2024 · Using a Chief Ray Angle curvature solve; Using EXPP operand; Using RANG operand . Using a curvature solve to target chief ray angle. If the chief ray angle, with respect to the optical axis, on the last surface with optical power is forced to be zero, then this will make the exit pupil be at infinity. http://isl.stanford.edu/~abbas/ee392b/lect10.pdf henry survival rifle kit price
Ray Nagel - Wikipedia
WebThe Field of view gets smaller: Because the lens is not telecentric (but “entocentric”), the light arrives at some Angle > 0 in the corners of the sensor. We can imagine this as an image side (half) viewing angle. That angle is called (max) Chief ray angle) When the lens is in infinity position. When we increase the distance to the sensor, tha maximum angle … WebFigure 9 shows the chief rays for the center and the corner of the image (highlighted in red). In many applications, roll-off is not an issue, but it can be a problem when the chief ray … WebSep 1, 2011 · Abstract. The chief ray angle (CRA) of a mobile phone lens is related to the acceptance angle of the IR cutoff filter and micro lens array. The CRA of a lens need to be within an allowed value ... henry survival rifle kit