JP2003057730A - Image pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image pickup device equipped with a speaker for presenting a high sound pressure and good sound quality by utilizing a small space and securing a satisfactory back cavity without making the image pickup device such as a camera, etc., large in size. SOLUTION: As for the image pickup device provided with an image pickup means, a speaker 7, a microphone 5 and a stroboscope unit SU, sound holes 9c, 9d, 9e and 9f are formed in a case 9 for holding the speaker 7, and also, the case 9 is formed to nearly a closed cavity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup apparatus such as a digital still camera or a video camera (hereinafter referred to as "camera") having a speaker.

More specifically, the present invention relates to an image pickup apparatus having a speaker holding means.

[0003]

2. Description of the Related Art Generally, an acoustic space (hereinafter referred to as a "back cavity") provided behind a speaker for maintaining sound pressure and sound quality of the speaker is more closed, and It is known that the sound volume and sound quality improve as the volume of space increases.

[0004]

However, in recent years,
As the size of the image pickup device has been reduced, a sufficient back cavity cannot be secured, and the sound output from the speaker may be reduced.

In view of this, the present invention does not make an image pickup device such as a camera large, but effectively utilizes a narrow space to sufficiently secure a back cavity, and an image pickup device provided with a speaker having high sound pressure and good sound quality. The purpose is to provide.

[0006]

Therefore, in the present invention, the above object is achieved by providing an image pickup device shown in any one of the following items (1) to (6). is there.

(1) In an image pickup device having an image pickup means, a speaker, a microphone, and a strobe unit, a case for holding the speaker is provided with a sound passage hole and is a substantially closed space. An imaging device characterized by the above.

(2) The case for holding the speaker is
The imaging device according to item (1), which is a case that constitutes a strobe unit.

(3) The sound passage hole provided in the case for holding the speaker is provided on the rear side substantially opposite to the diaphragm of the speaker, as described in the above item (1). Imaging device.

(4) In an image pickup device having an image pickup means, a speaker, a microphone, and a strobe unit, a light emitting means such as a strobe unit for illuminating a subject on the back surface of the speaker as the acoustic space of the speaker. An imaging device characterized by being arranged.

(5) The image pickup apparatus according to item (4), wherein the light emitting means has a capacitor for causing the light emitting section to emit light.

(6) The image pickup apparatus according to item (4), wherein the light emitting means is provided as a substantially closed space.

With the above structure, the space on the back of the speaker is connected to the substantially closed space in the case forming the strobe unit by the sound passage hole provided in the case forming the strobe unit, and a sufficient back space necessary for reverberation is obtained. It is possible to provide an image pickup apparatus including a speaker in which a cavity is secured and a high sound pressure and a good sound quality can be provided by effectively utilizing a narrow space without enlarging the camera.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings and examples.

(Embodiment) FIG. 1 is a schematic perspective view of a camera body having a speaker holding structure of this embodiment, FIG. 2 is a schematic vertical sectional view of a central portion of a Fresnel lens, and FIG. 3 is a schematic rear view of a speaker. FIG. 4 is a schematic plan view of only the strobe unit, in which the speaker held by the strobe unit is removed.
FIG. 5 is a schematic horizontal sectional view of the main capacitor.

Reference numeral 1 is a camera body, and C (not shown) is provided inside.
A CD, a signal processing board, a power supply board, a battery, a recording means for recording a photographed image, and a liquid crystal panel for displaying the photographed image are provided.

2 is a taking lens, 3 is an optical viewfinder, and 4
Is a Fresnel lens, which is the front panel of the light emitting portion of the strobe, 5 is a recording microphone provided in the camera body 1 by means not shown, and 5a is a microphone hole (hereinafter referred to as "microphone louver"). ) And 6 are speaker louvers (hereinafter referred to as “speaker louvers”) provided in the camera body 1, and SU is a strobe unit.

The CCD (not shown) and the taking lens 2 constitute an image pickup means.

Reference numeral 7 is a speaker to which a signal line (not shown) is soldered, 7a is a diaphragm of the speaker 7, 7b is a metal baffle, and 8 is a main body cover provided with a speaker louver 6 and a speaker. A rubber bush having a substantially ring shape for sealing the gap of 7, a case for holding the speaker, and an upper case which also constitutes the strobe unit SU, a cylindrical rib 9a, and a notch 9b. , 9c, 9d, 9e, 9f are holes for sound passage, and 10 is a lower case which is a case constituting the strobe unit SU,
Reference numeral 11 represents X, which is a light emitting source (light emitting unit) of the strobe.
An E tube, 12 is a reflection shade for reflecting the light of the XE tube 11 to the front surface of the camera 1, and 13 is a flash unit on which electric parts (not shown) are mounted and fixed to the lower case 10 by means (not shown). Substrate, 14 is main capacitor for strobe,
A and B are a space A and a space B which are rear spaces of the speaker 7, and C and D are a space C and a space D which are acoustic spaces of the speaker 7, respectively.

The Fresnel lens 4, the upper case 9, the lower case 10, the XE tube 11, the reflection shade 12, and the strobe substrate 1 are provided.
3. The main condenser 14 constitutes a strobe unit SU.

Reference numeral 7c is a hole for passing sound, and 7d and 7e are lands for soldering signal lines (not shown).

In the above-mentioned structure, the camera 1 of this embodiment
Has a video mode that allows you to shoot a video in the shooting mode.The operator can select a video mode with a shooting mode switching dial (not shown) and shoot a video. Simultaneous recording is performed by the recording microphone 5 provided under 5a.

It is also possible to reproduce the taken moving image. In this case, the moving image is displayed on a liquid crystal panel (not shown) on the rear surface of the camera body 1 and recorded by the speaker 7 through the speaker louver 6. Sound is played.

Next, the holding of the speaker 7 shown in FIG. 2 will be described.

The speaker 7 is composed of a magnet (not shown), a diaphragm 7a, and a metal baffle 7b for preventing an operator from directly contacting the diaphragm 7a when the speaker 7 is assembled. The signal lines shown in the figure are soldered.

The speaker 7 is positioned by a substantially cylindrical rib 9a provided on the upper case 9, is biased by a rubber bush 8 provided between the speaker 7 and the main body cover, and is fixed to the strobe unit SU without rattling. .

The thickness of the rubber bush 8 is set to be slightly thicker than the gap between the main body cover and the speaker 7 and is crushed when assembled, so that the sound generated by the vibration of the diaphragm 7a is generated by the camera 1. It is possible to take out from the speaker louver 6 without leaking to the whole.

Further, as shown in FIG.
Is also provided with nine holes 7c on the opposite surface of the diaphragm 7a, and the sound generated by the diaphragm 7a is guided to the spaces A and B on the back surface of the speaker 7 through the holes 7c.

As shown in FIGS. 2 and 4, the upper case 9 arranged on the back side of the speaker 7 has holes 9c to 9f for sound passage in addition to a notch 9b through which a signal line (not shown) passes. Since it is provided, the sound guided to the space A and the space B from the hole 7c of the speaker 7 passes through the holes 9c to 9f,
It is guided to the inside of the strobe unit SU.

As shown in FIG. 2, the strobe unit SU
The interior is divided into two spaces for the guided sound.

In the first space, the speaker 7 is provided with the holes 9e and 9f.
The space C is connected to the back space B of FIG. 1 and the XE tube 11 and the reflection shade 12 which constitute the light emitting portion of the strobe unit SU are held in the space C by means not shown.

The second space has holes 9c and 9d for the speaker 7
5 is a space D connected to the rear space A of the lower case 10 and the flash substrate 13 as shown in FIG.
It is a closed space created by.

By adding these spaces C and D as the acoustic spaces (back cavities) to the conventional spaces A and B, the space as the back cavity of the speaker 7 is sufficiently expanded, and the reproduced sound has a high sound pressure and a good sound pressure. It is possible to reproduce with sound quality.

Further, since the strobe unit SU has many high-voltage portions in terms of its function, the inside of the miniaturized camera 1 is covered with an insulating material such as a mold so as to prevent a leak or a short circuit. It is configured.

As described above, since the strobe unit SU is covered with the mold, its interior is also a substantially closed space, and it is rational to use the interior of the strobe unit SU as a back cavity.

As described above, it is possible to realize a camera which is small but has a speaker 7 which has a high sound pressure and a good sound quality without enlarging the camera 1.

[0037]

As described above, according to the present invention,
It is possible to provide an imaging device that includes a speaker that ensures a sufficient back cavity by effectively utilizing a narrow space without increasing the size of the imaging device such as a camera, and that has a speaker with high sound pressure and good sound quality.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a camera body having a speaker holding structure of the present embodiment.

FIG. 2 is a schematic vertical sectional view of a central portion of a Fresnel lens.

FIG. 3 is a schematic rear view of the speaker.

FIG. 4 is a schematic plan view of only the strobe unit with the speaker held by the strobe unit removed.

FIG. 5 is a schematic horizontal sectional view of a main capacitor.

[Explanation of symbols]

1 camera body 2 Shooting lens 3 Optical viewfinder 4 Fresnel lens 5 recording microphone 5a Microphone louver Louvers for 6 speakers 7 speakers 8 rubber bush 9 upper case 9c, 9d, 9e, 9f holes 10 Lower case 11 XE tubes 12 Reflective shade 13 Strobe board 14 Main capacitor A space A B space B C space C D space D

Claims (6)

[Claims] 1. In an image pickup device having an image pickup means, a speaker, a microphone, and a strobe unit, a case for holding the speaker is provided with a sound passage hole and is a substantially closed space. An imaging device characterized by. 2. The image pickup apparatus according to claim 1, wherein the case holding the speaker is a case forming a strobe unit. 3. The image pickup apparatus according to claim 1, wherein the sound passage hole provided in the case for holding the speaker is provided at a rear side substantially opposite to the diaphragm of the speaker. 4. An image pickup device having an image pickup means, a speaker, a microphone, and a strobe unit, and a light emitting means such as a strobe unit for illuminating a subject on the back surface of the speaker is arranged as the acoustic space of the speaker. An imaging device characterized by the above. 5. The image pickup device according to claim 4, wherein the light emitting unit has a capacitor for causing the light emitting unit to emit light. 6. The image pickup apparatus according to claim 4, wherein the light emitting means is provided as a substantially closed space.