FILMING METHOD FOR FLUORESCENT SURFACE OF CATHODE RAY TUBE

PURPOSE:To obtain a fluorescent surface of high brightness by rotating at a high speed a glass panel, on the fluorescent surface of which rewetting solution is sprayed, measuring the glossiness of the inner surface of the fluorescent surface which is in a wet condition, thereafter, and thereby comparing the measured value with the range set up of glossiness while filming process and feed-back are controlled and adjusted respectively. CONSTITUTION:A light absorbing film 2 in a pattern shape is formed in the inner surface of a glass panel 1, to which blue, green and red fluorescent stripes 3 through 5 are attached, and the glossiness thereof is measured by a glossiness measuring means 20. Namely, the panel 1 is rotated at a high speed while rewetting solution is being sprayed on the fluorescent surface, and a light source device 21 and a light receiving device 22 are arranged in such a way that an incident angle and a reflection angle will be 60 deg. respectively with the fluorescent surface which is in a wet condition. Output signals from the device 22 are inputted into a data processing unit 23, and the data is taken in at a set measuring time so as to be processed. In this case, when the measured value is in the range set up, the rewetting solution or lacquer is sprayed as a pre and/or a post process as usual.