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DESCRIPTION JPH1023576

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DESCRIPTION JPH1023576
[0001]
TECHNICAL FIELD The present invention relates to a speaker device.
[0002]
2. Description of the Related Art A speaker apparatus shown in FIG. 7 is described in Japanese
Utility Model Application Publication No. 61-119488. The light source 2 is provided inside the
speaker 1, and the light of the light source 2 irradiates the center cap 3 and the cone 4 from the
back.
[0003]
In such a configuration, although an illumination effect can be expected, a special process for
incorporating the light source 2 on the side of the magnetic circuit when assembling the speaker
1 is necessary.
[0004]
An object of the present invention is to provide a speaker device that can be expected to have an
effective illumination effect without performing special processing for incorporating the light
source 2 on the side of a magnetic circuit.
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1
[0005]
SUMMARY OF THE INVENTION A speaker device according to the present invention uses, as a
center cap, a material in which a random pattern having a spectral function is formed by
hologram processing.
[0006]
According to the present invention, it is possible to obtain a speaker device that can be expected
to have an effective illumination effect without performing special processing for incorporating a
light source on the side of a magnetic circuit.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the
present invention is characterized in that a random pattern having a spectral function is formed
on a surface of a center cap of a speaker by hologram processing.
[0008]
According to a second aspect of the present invention, there is provided a speaker in which a
random pattern having a spectral function is formed on the surface of a center cap by hologram
processing, and a light source disposed in front of the speaker and irradiating the surface of the
center cap. It is characterized in that it is provided.
[0009]
The invention described in claim 3 of the present invention is characterized in that, in claim 2,
the light source is constituted by a plurality of light emitting diodes which are sequentially
blinked.
Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 6.
[0010]
Embodiment 1 FIGS. 1 to 3 show (Embodiment 1).
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2
As shown in FIGS. 1 and 2, the speaker device configured in a part of the cabinet 5 of the radio
cassette with a compact disc player is attached to the baffle plate 6 with the entire opening of the
speaker 1 upward. The entire opening of the speaker 1 is covered by a punching net 7 attached
to the cabinet 5.
[0011]
The center cap 8 of the speaker 1 is made of a sheet formed by hologram processing of a random
pattern having a spectral function.
Specifically, the random pattern as shown in FIG. 3 is formed by hologram processing.
[0012]
With such a configuration, when the center cap 8 is irradiated with external light 9 such as
sunlight or a lighting fixture or natural light through the punching net 7, the user can view the
center cap 8 visually through the punching net 7.
[0013]
At this time, since the center cap 8 has a random pattern having a spectral function formed on
the surface of the center cap 8 by hologram processing, it is observed that the random pattern of
the center cap 8 is iridescent, as if it were self-illuminating A decorative effect such as
[0014]
Furthermore, when the speaker 1 is driven by an alternating current electrical signal, the cone 4
and the center cap 8 move up and down in the direction of arrow A, and the center cap 8 at this
time moves as shown by a broken line in FIG. The position illuminated by the light 9 is slightly
changed, and a random pattern observed to be iridescent is observed moving up and down in the
direction of the arrow A, and the decoration effect is improved.
Also, the movement of the cone 4 can be visually grasped.
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3
[0015]
Embodiment 2 In the embodiment of (Embodiment 1), the center cap 8 is illuminated with the
external light 9. However, in this (Embodiment 2) shown in FIGS. 4 to 6, the light source 10 is
incorporated. There is.
[0016]
The light sources 10 are arranged as follows.
A center cap is formed in the same manner as in Embodiment 1 by opening a hole 12 in the
reflection plate 11 attached so as to cover the entire surface of the speaker 1 and projecting the
light emitting diodes 13a, 13b and 13c from the hole 12 Illuminate 8
Reference numeral 14 denotes a printed wiring board on which electronic circuits for lighting
and driving the light emitting diodes 13a to 13c so as to repeat sequential flashing are formed.
Reference numeral 15 denotes a cover for covering the printed wiring board 14 so as not to be
seen from the outside.
[0017]
With this configuration, when the center cap 8 is illuminated by the light emitting diodes 13a to
13c, the center cap 8 illuminated by the light emitting diodes 13a to 13c can be viewed from the
gap 11a of the reflection plate 11 through the punching net 7.
[0018]
By flashing the light emitting diodes 13a to 13c sequentially, the illuminated position of the
center cap 8 changes, and the place where the rainbow pattern of the random pattern shines
changes along with the blinking, and a more effective decoration effect is expected. it can.
[0019]
More specifically, when the light emitting diodes 13a to 13c are turned on, turned off, turned off,
turned off, turned on, turned off, and then repeatedly turned off, turned off, turned on, the center
cap It can be observed that the random pattern of 8 flows in the arrangement direction of the
light emitting diodes 13a to 13c.
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4
[0020]
Also in this case, as in the case of (Embodiment 1), if the speaker 1 is driven by an alternating
current electrical signal, the decoration effect is improved.
Also, the movement of the cone 4 can be visually grasped.
[0021]
Although a plurality of light emitting diodes are arranged in series in (Embodiment 2), a plurality
of light emitting diodes may be arranged in a ring shape so as to be located on the entire surface
of the speaker 1 and to face the center cap 8 .
[0022]
According to the first aspect of the present invention, since a random pattern having a spectral
function is formed by hologram processing on the surface of the center cap of the speaker,
decoration is achieved by illuminating the center cap with external light or built-in light. The
effect is improved, and the movement of the cone can be visually grasped.
[0023]
In addition, since only the material of the center cap is selected to assemble the speaker, an
effective illumination effect can be obtained even without performing special processing required
to provide a light source on the side of the magnetic circuit as in the prior art. Can be expected.
[0024]
According to the configuration of the second aspect, the speaker provided with the random
pattern having the spectral function on the surface of the center cap by the hologram processing,
and the light source disposed in front of the speaker and irradiating the surface of the center cap
A stable decorative effect is obtained without being influenced by external light, and the
movement of the cone can be visually grasped even in a dark environment.
[0025]
According to the configuration of claim 3, since the light source is constituted by a plurality of
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5
light emitting diodes which are repeatedly blinked in the second aspect, the location where the
pattern of the center cap glows iridescent due to the blinking of the light source changes, which
is more effective Can be expected to have a decorative effect.
[0026]
Brief description of the drawings
[0027]
An appearance perspective view of a partially cutaway state of FIG. 1 (Embodiment 1)
[0028]
2 is a cross-sectional view of the same embodiment
[0029]
Fig. 3 A plan view of the main parts of the speaker according to the same embodiment
[0030]
An exploded perspective view of FIG. 4 (second embodiment)
[0031]
5 is a longitudinal sectional view of the same embodiment
[0032]
6 is a cross-sectional view of the same embodiment
[0033]
Fig. 7 Cross section of the conventional speaker device
[0034]
Explanation of sign
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[0035]
1 Speaker 8 Center Cap 10 Light Source 13a, 13b, 13c Light Emitting Diode
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7
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