Picture recorder

Abstract

Abstract PURPOSE:To prevent deterioration in picture quality by performing the exposure of red, green and blue while switching the color at each scanning line and shifting the scanning line position of each color in a direction vertical to a linear scanning direction in a picture recorder using a linear scanning type cathode ray tube. CONSTITUTION:A section 12 to be exposed is subjected respectively to the exposure of red, at first, green next and then blue picture data for one scanning line's share. Thus, the exposure based on a green picture data is overlapped on a constant k-th cycle decided by l or the like at a position subject to the exposure based on the red picture data on the section 12 to be exposed, further subject to the exposure based on the green picture data at the 2k-th cycle and then the exposure by the three color lights is finished. Since the shear in the exposed position by the three color lights is eliminated substantially in this case, an excellent color picture is obtained. Further, the scanning line position in the same color is moved in a direction orthogonal to the scanning line attended with the recording, then the unevenness of the luminous amount of each scanning line is different at each time because of the random property, no stripe is produced.

Inventors

• 👤 Kenichi Kondo
• 👤 近藤　憲一
• 👤 Tetsuo Takaku
• 👤 高久　哲郎
• 👤 Hideki Morita
• 👤 秀樹 森田
• 👤 Hirotaka Hara
• 👤 裕孝 原

Bibliographic Details