| 摘要 |
PURPOSE:To obtain a speaker which is free from the divided vibration or the partial vibration by securing the diaphragm featuring the light weight and firm standing which is obtained through the paper making by mixing the pulp fibers of the acicular tree and the white birch together. CONSTITUTION:The pulp component of the white birch, which is available most easily among the broadleaf trees and features the uniform thickness and length of the fiber with reduced dispersion, is mixed up to the pulp fiber of the acicular tree. Then the paper is made from such mixture of fibers to be used for the speaker diaphragm. The light weight is secured since the white birch pulp component contains the air, and the firm standing is secured by the nature of the pulp of the broadleaf tree. As a result, a speaker can be obtained with no divided vibration nor partial vibration either. |
