https://wiki.yanding.com/ 2026-07-11T05:26:47+00:00 https://wiki.yanding.com/ https://wiki.yanding.com/lib/tpl/myconfluence/images/favicon.ico text/html 2026-07-10T08:03:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.yanding.com/doku.php?id=en:yanding:image_quality_evaluation:tools:collimators:focal_length_matching&rev=1783670589&do=diff FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Focal Length Matching Between Collimator and DUT When testing a DUT using a collimator, the collimating objective Lcol of the collimator and the imaging objective Ldut of the DUT form an optical imaging system. The image of the target formed by Lcol serves as the object for Ldut. Focal length is one of the primary parameters of Lcol. In collimator se… text/html 2026-07-10T08:03:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.yanding.com/doku.php?id=en:yanding:image_quality_evaluation:tools:collimators:object_distance_calculation&rev=1783670590&do=diff FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Object Distance Calculation for Collimators Collimators are designed with infinity as the target object distance, but in practical applications, the object distance that yields the sharpest image of the DUT may be finite. According to the principles of lens imaging, when the target is located outside or inside the focal plane of the collimating objec… text/html 2026-07-10T08:03:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.yanding.com/doku.php?id=en:yanding:image_quality_evaluation:tools:collimators:pupil_matching&rev=1783670589&do=diff FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Pupil Matching Between Collimator and DUT The image of the aperture stop formed by the optical system between it and the image is called the exit pupil, or text/html 2026-07-10T08:03:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.yanding.com/doku.php?id=en:yanding:image_quality_evaluation:tools:collimators:structure&rev=1783670590&do=diff FIXME This page is not fully translated, yet. Please help completing the translation. (remove this paragraph once the translation is finished) Structure of the Collimator With the increasingly widespread application of digital cameras in road vehicles, aircraft, head-mounted displays, security systems, and other applications, camera testing and calibration for distant targets have become essential in camera development, production, and verification. Whether due to the space constraints of o…