顯示器的反射特性對顯示內容的可讀性非常重要，ISO 9241 Part 7 - Requirements for displays with reflections有詳細的規定，LMK98-4 影像式亮度計可以實現顯示器表面的反射率測量，同時我們提供更嚴格的使用積分球進行反射測試的方法。 20” Diameter reflectance measurement sphere for flat panel displays, with latches and a hinge mechanism for easy access to center mount, opening and closing, on a desktop-mounted stand with rubber feet. The sphere includes a rotatable center mount, post style sample stand with 1/4-20 mounts on platform, adjustable holder for specimen displays up to 6” square in size. The center of rotation of platform is near front of platform. At the bottom of post is a cursor with angular designations for manual external adjustment of yaw angles. Also included are: 2” entrance port with frame and 1” and 0.5” port frame reducers. 1” lamp port with socket, 20 watt tungsten halogen lamp (uncalibrated) and port plug. Multi- purpose baffle to block direct radiation from hitting sample and measurement port. Rail and Mounting stage for radiometer or digital camera. Coated with Avian-D coating. Including post and certain other internal components