TRANSFORMER

• Main Authors: MATSUDA MASAYOSHI, HIROOKA YUTAKA
• Format: Patent
• Language: English
• Published: 07.03.1990
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

PURPOSE:To discriminate displays irrespective of the depth of a recess, the angle of a ceiling face, the irregularity in the quantity of light, etc., by forming recesses of part number, data number on the surface embossed with unevenness of several microns on the top face of a plastic sheathed case. CONSTITUTION:A transformer body is inserted into a sheathing case 1 of plastic molded form opened at one end and embossed on its top face with unevenness of several microns. A part number 3 or a data number 4 is punched on the top face of the case 1 in recessed state. This employs a principle of reading a symbol due to the difference of the intensity of the reflected light of the surface 2 of the case and the intensity of the reflected light of the recess 3. The top face 2 is formed to be uneven of several microns, i.e., embossed face 5. Thus, the light 13 irradiating the top face 2 is reflected at random on the uneven face of the embossed face 5 or absorbed, and not reflected externally as it is. As a result, the level of the intensity of the reflected light of the face 2 is reduced, and the intensities of the reflected lights of the face 2 at any angles can be equalized.