| 摘要 |
<p>An ink-jet head is provided, comprising a base plate (110), a laminated piezoelectric actuator unit (112) composed of pairs of laminated piezoelectric actuators (111, 111) each having a piezoelectric strain coefficient d33, said laminated piezoelectric actuators (111, 111) having collective electrodes formed on both end surfaces thereof and being arranged in plural rows confronting each other on said base plate (110), a common electrode (113b) being formed by electrically connecting together the collective electrodes formed on confronting end surfaces, which are formed at a central portion of said base plate (110), of said laminated piezoelectric actuators (111, 111), and driving electrodes (113a) being composed of the collective electrodes formed on other end surfaces of said laminated piezoelectric actuators (111, 111), wherein said laminated piezoelectric actuator unit (112) comprises a laminated piezoelectric element block provided on an upper surface of said base plate (110), a first slit formed at a central portion of said laminated piezoelectric element block so as to divide it, and a plurality of second slits shallower than said first slit formed in said laminated piezoelectric element block in a direction substantially perpendicular to said first slit. <IMAGE></p> |
