VIBRATION GENERATOR AND ELECTRONIC APPARATUS

• Main Authors: MATSUI YUKIHIRO, ITO FUMIHISA, HAMADA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 16.09.2021
• Subjects: FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; TRANSPORTING

To provide a vibration generator and an electronic apparatus capable of presenting a tactile feeling while preventing the generation of contact noise.SOLUTION: A vibration generator is equipped with a vibrator, and a piezoelectric actuator. The vibrator has a first main surface, and a second main surface on the opposite side to the first main surface. The piezoelectric actuator is joined with the second main surface. On the first main surface, a plurality of recessed/projections are formed at equal intervals.SELECTED DRAWING: Figure 4 【課題】接触音の発生を防止しながら、触覚を提示することが可能な振動発生装置及び電子機器を提供すること。【解決手段】本発明に係る振動発生装置は、振動体と、圧電アクチュエータとを具備する。上記振動体は、第１の主面と、上記第１の主面とは反対側の第２の主面を有する。上記圧電アクチュエータは、上記第２の主面に接合されている。上記第１の主面には、複数の凹凸が等間隔で形成されている。【選択図】図４