Piezoelectric vibration angular velocity meter and camera using

Details Piezoelectric vibration angular velocity meter and camera using Piezoelectric vibration angular velocity meter and camera using

1996-04-10

1998-06-09

Perkey, W. B

Photography

Camera shake sensing

With accelerometer

7350414, 310348, 310366, G03B 500, G01P 900, H01L 41047, H01L 41053

Patent

active

057650462

ABSTRACT:
A piezoelectric angular velocity meter includes a piezoelectric element. The piezoelectric element includes a first piezoelectric element and a second piezoelectric element bonded to the first piezoelectric element. The second piezoelectric element includes a second member made of a piezoelectric crystal, and upper- and lower-surface electrodes sandwiching the second member. The first piezoelectric element is fixed to the upper-surface electrode of said second piezoelectric element with an adhesive. The first piezoelectric element includes a first member made of a piezoelectric crystal, upper-surface electrodes, and a lower-surface electrode. The upper- and lower-surface electrodes sandwich the first member of the first piezoelectric element. The piezoelectric element is supported by two support portions.

REFERENCES:
patent: 4152616 (1979-05-01), Ozbirn
patent: 4898031 (1990-02-01), Oikawa et al.
patent: 5430342 (1995-07-01), Watson
patent: 5635786 (1997-06-01), Fujimoto et al.

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