MAGNETIC FIELD ACTUATION REFRACTABLE LENS 磁界作動型屈折可変レンズ - 特許庁
To provide a Pachinko machine for preventing damage on a glass surface owing to the collision of a game ball with the glass surface, allowing a player to easily recognize the change of a nail on a game board surface, obtaining nail disturbance change which is larger compared with a refractable nail, so as to acquire the large movement change of the game ball as the result, and providing excellent amusement. ガラス面に遊技球を衝突させることによるガラス面の損傷を防止し、また遊技者から遊技盤面上の釘の変化を容易に確認でき、また出没釘に比べて大きな釘障碍変化状態が得られその結果大きな遊技球の移動変化が得られ、興趣に優れたパチンコ機を提供するものである。 - 特許庁