DESCRIPTION JPS54111327

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DESCRIPTION JPS54111327
Optical motion feedback speaker L The specification has a diaphragm which cooperates with a
magnet system by a movable coil attached thereto, and an optical measurement system having
two optical elements of a light source and a detector. In a moving quotient type speaker in which
at least one of the elements is attached to the central portion of the magnet thread and the
detector derives a voltage substantially corresponding to the movement of the imaging plate, the
two optical elements An optical operation feedback speaker characterized in that the other
element is attached to a diaphragm, and an opening is provided in the magnet system, and the
opening is arranged to form a straight path between the λ elements.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of an example
of the speaker of the present invention provided with a hole in the central core, FIG. 2 a crosssectional view showing the details of the insert of the present invention, FIG. These are figures
which show an optical strong injection characteristic as a function of the distance between two
elements of this invention speaker. 1: Dust cap, light emitting diode (light source) 3, aperture 2:
light guiding member 1, phototransistor (photo detector). ＥｎｄＰａｇｅ： ４
10-04-2019
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