Detection device

Abstract

We provide technology for miniaturizing detection devices. [Solution] The detection device for detecting the vibration of a subject comprises a diaphragm including a reflective surface that moves in response to the vibration of the subject, a light-emitting element that emits light toward the reflective surface, a light-receiving element that receives the reflected light reflected by the reflective surface and outputs a signal corresponding to the reflected light, and a gripping part including a portion that is held by the user using the detection device, wherein, in a plan view with respect to the outer surface of the diaphragm, the optical path direction passing through the center of the light-emitting element and the center of the light-receiving element intersects the longitudinal direction of the gripping part.

Claims

1. A detection device for detecting vibrations of a subject, A diaphragm including a reflective surface that moves in response to the vibration of the subject, A light-emitting element that emits light toward the reflective surface, A light-receiving element that receives reflected light reflected by the reflective surface and outputs a signal corresponding to the reflected light, The device comprises a gripping portion including a part that is grasped by a user using the detection device, A detection device characterized in that, in a plan view with respect to the outer surface of the diaphragm, the optical path direction passing through the center of the light-emitting element and the center of the light-receiving element intersects the longitudinal direction of the gripping portion.

2. The detection device according to claim 1, characterized in that, in a plan view of the diaphragm with respect to its outer surface, the angle between the optical path direction and the longitudinal direction is 30 degrees or more.

3. The detection device according to claim 1, characterized in that, in a plan view of the outer surface of the diaphragm, the optical path direction is perpendicular to the longitudinal direction.

4. The detection device further comprises a chestpiece including the diaphragm, the light-emitting element, and the light-receiving element. The detection device according to claim 1, characterized in that the chestpiece is coupled to the gripping portion.

5. The detection device according to claim 4, characterized in that the chestpiece is pivotable relative to the gripping portion.

6. The chestpiece includes a pivot shaft attached to the gripping portion, The detection device according to claim 5, characterized in that the chestpiece is pivotable about the pivot axis relative to the gripping portion.

7. The detection device according to claim 6, characterized in that, in a plan view of the diaphragm with respect to the outer surface, the axial direction of the pivot axis is perpendicular to the longitudinal direction of the gripping portion.

8. In a cross-section of the diaphragm with a specific plane parallel to the outer surface, A straight line passing through the center of the diaphragm and extending in the longitudinal direction intersects the outer surface of the chestpiece at a first intersection point between the gripping portion and the center of the diaphragm. A straight line passing through the center of the diaphragm and extending in the direction of the optical path intersects the outer surface of the chestpiece at the second intersection, The detection device according to claim 4, characterized in that the distance between the center of the diaphragm and the first intersection point is shorter than the distance between the center of the diaphragm and the second intersection point.

9. The outer surface of the chestpiece includes a surface facing the gripping portion, The detection device according to claim 4, characterized in that the opposing surface includes a portion that extends along the outer surface of the gripping portion.

10. The detection device according to claim 9, characterized in that the portion of the opposing surface that extends along the outer surface of the gripping portion is a flat surface.

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