| 摘要 |
PURPOSE:To obtain the inexpensive optical information recording medium by removing a recording film in accordance with the information to be previously recorded on the optical information recording medium. CONSTITUTION:The recording film 2 is formed on a transparent plate 1a and a back plate 5 is adhered with an adhesive agent 3 to the recording film 2. Another transparent plate 1b is adhered to the transparent plate 1a. The recording film 2 (high-reflective film for a reproduction only type) of parts 7 which are pit patterns or line patterns are removed in accordance with the previously recorded information. The need for a stamper is, therefore, eliminated at the time of production and also the need for transferring and forming very small ruggedness on the resin plate is eliminated. The optical information recording medium is inexpensively obtd. at a good yield in this way. |
