Abstract:
PROBLEM TO BE SOLVED: To improve the productivity of a compact meandering oscillator. SOLUTION: The meandering oscillator is composed of: a plurality of oscillating plates which are folded and connected; and piezoelectric actuators 8 arranged on every one piece wherein the piezoelectric actuators 8 have lower electrodes 9, a piezoelectric body 10 and an upper electrode 11 which are laminated in this order on the oscillating plates. Thus, even if the element is reduced in size, an electrode layout is facilitated, and as a result, productivity is improved. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical reflection element for use in, for example, a laser scan unit for a laser printer or an electrophotographic apparatus, which provides a small laser scan unit. SOLUTION: The optical reflection element comprises a support 1, a first support part 2 with one end supported on the support 1, a tuning fork oscillator 6 having a first arm 3 and a second arm 4 supported on the other end of the first support part 2, a second support part 11 with one end supported on the oscillation center of the tuning fork oscillator 6, and a mirror part 12 supported on the other end of the second support part 11. A monitoring piezoelectric element 8 for controlling oscillation is disposed on the first support part 2. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To increase the frequency ratio of vibration in a dual-axis drive optical reflecting element. SOLUTION: This optical reflecting element comprises: a mirror part 1; a tuning fork type vibrator 3 connected to the mirror part 1 via a supporting part 2; a frame body 6 which is connected to the tuning fork type vibrator 3 via a supporting part 5 and enclosing the outer circumference of the tuning fork type vibrator 3 and the mirror part 1; a tuning fork type vibrator 8 connected to the frame body 6 via a supporting part 7; and a supporting body 11 connected to the tuning fork type vibrator 8 via a supporting part 10, wherein the supporting part 2 and the supporting part 5 are formed on a rotary shaft 18 of the tuning fork type vibrator 3, the ends of arms 14 and 15 of the tuning fork type vibrator 8 have projected parts 16A and 16B formed thereon, respectively. Thus, the frequency ratio of vibration in the dual-axis drive optical reflecting element can be increased. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a dual axis driving type optical reflection element which is compact and has a large frequency ratio. SOLUTION: The optical reflection element is provided with: a mirror part 1; a pair of tuning fork type oscillation elements 3 connected by a first supporting part 2; a frame body 6 connected by a second supporting part 5; a meander type oscillation element 8 of which the one end 7 is connected to the frame body 6; and a supporting body 10 to which the other end 9 of the meander type oscillation element 8 is connected, wherein the tuning fork type oscillation elements 3 have a first arm 12 and a second arm 13, the rotation axis 28B of the tuning fork type oscillation elements 3 and the rotation axis 28A of the meander type oscillation element 8 are orthogonal to each other. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical reflection element capable of being miniaturized. SOLUTION: This optical reflection element includes a mirror part 1, first tuning fork-shaped piezoelectric vibrators 3 opposing to each other through the mirror part 1 and connected with the mirror part 1 by first supporting parts 2, respectively, a frame body 6 connected with the center of vibration of these first tuning fork-shaped piezoelectric vibrators 3 by second supporting parts 5, respectively, and surrounding the outer peripheries of the first tuning fork-shaped piezoelectric vibrators 3, second tuning fork-shaped piezoelectric vibrators 8 opposing to each other through the frame body 6 and connected with the frame body 6 by third supporting parts 7, respectively, and a supporting body 11 connected with the center of vibration of these second tuning fork-shaped piezoelectric vibrators 8 by fourth supporting parts 10, respectively. The direction of opposition of a pair of the first tuning fork-shaped piezoelectric vibrators 3 crosses the direction of opposition of a pair of the second tuning fork-shaped piezoelectric vibrators 8 orthogonally, and the third and fourth supporting parts 7, 10 have a bellows shape, respectively, thereby miniaturizing the optical reflection element. COPYRIGHT: (C)2009,JPO&INPIT