Image pickup apparatus
First Claim
1. A dustproof unit for an image pickup device, the dustproof unit being disposed in front of the image pickup device to prevent dust from sticking to the image pickup device, the dustproof unit comprising:
- a light transmitting member capable of vibrating in front of the image pickup device;
an electrostrictive element which vibrates the light transmitting member;
a flexible printed board on which there is mounted at least part of a drive circuit to drive and vibrate the electrostrictive element;
a support table which supports the flexible printed board, the electrostrictive element and the light transmitting member; and
a kinetic energy absorbing member which prevents the flexible printed board from being damaged by vibration of the light transmitting member.
2 Assignments
0 Petitions
Accused Products
Abstract
In order to effectively and rapidly prevent, by use of a dustproof unit inside an image pickup unit, dust that has an adverse effect on the pickup of input images from sticking to optical members and to improve assembly for a simpler configuration, in an image pickup apparatus, a dustproof unit comprises a dustproof filter capable of vibrating in front of the image pickup device to prevent the dust from sticking to the image pickup device, an electrostrictive element for vibrating the dustproof filter, a flexible printed board on which there is mounted at least a drive circuit to drive and vibrate the electrostrictive element, and a support table provided with the flexible printed board, the electrostrictive element and the dustproof filter, and this dustproof unit is mounted in an image pickup unit in consideration of the assembly.
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Citations
15 Claims
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1. A dustproof unit for an image pickup device, the dustproof unit being disposed in front of the image pickup device to prevent dust from sticking to the image pickup device, the dustproof unit comprising:
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a light transmitting member capable of vibrating in front of the image pickup device; an electrostrictive element which vibrates the light transmitting member; a flexible printed board on which there is mounted at least part of a drive circuit to drive and vibrate the electrostrictive element; a support table which supports the flexible printed board, the electrostrictive element and the light transmitting member; and a kinetic energy absorbing member which prevents the flexible printed board from being damaged by vibration of the light transmitting member. - View Dependent Claims (2, 3, 4, 5)
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6. An image pickup apparatus comprising:
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an image pickup device which obtains an image signal corresponding to an irradiated light; a light transmitting member which is disposed in front of the image pickup device and which vibrates in front of the image pickup device to prevent dust from sticking to the image pickup device; an electrostrictive element which vibrates the light transmitting member; a flexible printed board on which there is mounted at least part of a drive circuit to drive and vibrate the electrostrictive element; a support table provided with the flexible printed board, the electrostrictive element and the light transmitting member; and a kinetic energy absorbing member which prevents the flexible printed board from being damaged by vibration of the light transmitting member. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An image pickup apparatus comprising an image pickup unit in which unit there are sequentially disposed:
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a front plate unit to which a photography optical system is attachable; a mirror unit fixed to the front plate unit; a shutter unit fixed to the mirror unit; a dustproof unit disposed in a rear portion of the shutter unit and fixed to the front plate unit; an image pickup device provided in a predetermined opening of the dustproof unit; an image pickup device support plate which supports the image pickup device; a flexible printed board which is fixed to at least the front plate unit; and wherein the dustproof unit has a dustproof filter and an electrostrictive element which vibrates the dustproof filter, and at least part of a drive circuit is mounted on the flexible printed board to electrically drive the electrostrictive element to vibrate the dustproof filter to prevent sticking of dust to the image pickup device; and wherein the image pickup apparatus further comprises a kinetic energy absorbing member which prevents the flexible printed board from being damaged by vibration of the dustproof filter. - View Dependent Claims (15)
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Specification