JPS6311809Y2 - - Google Patents
Info
- Publication number
- JPS6311809Y2 JPS6311809Y2 JP2941382U JP2941382U JPS6311809Y2 JP S6311809 Y2 JPS6311809 Y2 JP S6311809Y2 JP 2941382 U JP2941382 U JP 2941382U JP 2941382 U JP2941382 U JP 2941382U JP S6311809 Y2 JPS6311809 Y2 JP S6311809Y2
- Authority
- JP
- Japan
- Prior art keywords
- microphone unit
- microphone
- net
- case
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】 本考案は指向性マイクロホンに関する。[Detailed explanation of the idea] The present invention relates to a directional microphone.
従来のマイクロホンは第１図に示すように、ケ
ース１の端部にマイクロホンユニツト２をその中
心軸をケース１の軸に一致させて取付け、その前
面に均一な密度を有する発泡合成樹脂よりなるネ
ツト３を取付けた構造を有する。このような従来
のマイクロホンは一般に同図ａに示すような指向
特性を有するが、実際の使用態様では、音声の方
向とマイクロホンが最大感度になる方向（マイク
ロホンユニツトの中心軸）とが一致することは希
であり、通常はマイクロホンユニツト２の中心軸
から角度θだけ傾いた方向（同図ｂ）から音声入
力がある場合が普通である。したがつて、マイク
ロホンユニツト２の指向特性を有効に利用できな
いばかりでなく、音声の方向以外の方向（同図
Ｃ）から不要な音声が入力される欠点があつた。 As shown in Fig. 1, a conventional microphone has a microphone unit 2 attached to the end of a case 1 with its central axis aligned with the axis of the case 1, and a net made of foamed synthetic resin having uniform density on the front side. It has a structure with 3 attached. Such conventional microphones generally have directional characteristics as shown in Figure a, but in actual usage, the direction of the sound and the direction in which the microphone has maximum sensitivity (center axis of the microphone unit) must match. This is rare, and the voice input is usually from a direction inclined by an angle θ from the central axis of the microphone unit 2 (see b in the figure). Therefore, not only can the directional characteristics of the microphone unit 2 not be effectively utilized, but also there is a drawback that unnecessary sound is input from a direction other than the direction of sound (see C in the figure).
本考案はこのような従来欠点を改良したもの
で、以下第２図において説明する。図中、第１図
の従来例と同一部分については同一符号を付す。 The present invention improves on these conventional drawbacks, and will be explained below with reference to FIG. In the figure, the same parts as those of the conventional example shown in FIG. 1 are given the same reference numerals.
図において、マイクロホンユニツト２の中心軸
をケース１の軸から所定の角度θ、好ましくは15
〜45度傾斜させ、かつ、ネツト３のマイクロホン
ユニツト２の側面に対向する部分の密度ρ1を同正
面に対向する部分の密度ρ2より大きくした構造で
ある。 In the figure, the central axis of the microphone unit 2 is set at a predetermined angle θ, preferably 15
It has a structure in which the net 3 is tilted at an angle of ~45 degrees, and the density ρ 1 of the portion of the net 3 facing the side surface of the microphone unit 2 is greater than the density ρ 2 of the portion facing the same front.
以上の構造によれば、マイクロホンユニツト２
の中心軸がケース１の軸から所定の角度θ傾斜し
ているので、指向特性は同図ａに示すようにな
り、かつ、マイクロホンユニツト２の側面および
背面方向の不要な音声がネツト３の高密度部分に
よつて大きく減衰されるので、総合指向特性は同
図ｂに示すような実際の使用態様に即した指向特
性となり、不要な音声入力が低減される利点を有
する。 According to the above structure, the microphone unit 2
Since the center axis of the microphone unit 2 is tilted at a predetermined angle θ from the axis of the case 1, the directional characteristics become as shown in a of the same figure, and unnecessary sounds from the sides and back of the microphone unit 2 are transmitted to the high pitch of the net 3. Since it is greatly attenuated by the dense portion, the overall directional characteristic becomes a directional characteristic suitable for the actual usage mode as shown in FIG.
本考案は以上のような構成であるから、マイク
ロホンの実際の使用態様に即した指向特性が得ら
れる優れた利点を有する。 Since the present invention has the above-mentioned configuration, it has an excellent advantage of being able to obtain directional characteristics that match the actual usage of the microphone.
第１図は従来のマイクロホンの構造とその指向
特性を示す図、第２図は本考案のマイクロホンの
構造とその指向特性を示す図である。
１はケース、２はマイクロホンユニツト、３は
ネツトである。
FIG. 1 is a diagram showing the structure of a conventional microphone and its directional characteristics, and FIG. 2 is a diagram showing the structure of the microphone of the present invention and its directional characteristics. 1 is a case, 2 is a microphone unit, and 3 is a net.
Claims (1)
付け、当該マイクロホンユニツト２の前面に発泡
合成樹脂よりなるネツト３を取付けた構造におい
て、上記マイクロホンユニツト２の中心軸とケー
ス１の軸とを所定の角度傾斜させ、かつ、上記ネ
ツト３のマイクロホンユニツト２の側面に対向す
る部分の密度をマイクロホンユニツト２の正面に
対向する部分の密度より大きくしたことを特徴と
するマイクロホン。 In a structure in which a microphone unit 2 is attached to the end of the case 1 and a net 3 made of foamed synthetic resin is attached to the front surface of the microphone unit 2, the central axis of the microphone unit 2 and the axis of the case 1 are inclined at a predetermined angle. A microphone characterized in that the density of the portion of the net 3 facing the side surface of the microphone unit 2 is greater than the density of the portion facing the front side of the microphone unit 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2941382U JPS58132490U (en) | 1982-03-01 | 1982-03-01 | microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2941382U JPS58132490U (en) | 1982-03-01 | 1982-03-01 | microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58132490U JPS58132490U (en) | 1983-09-07 |
| JPS6311809Y2 true JPS6311809Y2 (en) | 1988-04-06 |
Family
ID=30041203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2941382U Granted JPS58132490U (en) | 1982-03-01 | 1982-03-01 | microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58132490U (en) |
-
1982
- 1982-03-01 JP JP2941382U patent/JPS58132490U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58132490U (en) | 1983-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6311809Y2 (en) | ||
| JPH0562515B2 (en) | ||
| JPS6161597B2 (en) | ||
| JPS5850781U (en) | speaker boxes | |
| JPS5843083U (en) | speaker system | |
| JPS6026093U (en) | Mounting structure of electronic musical instrument speakers | |
| JPS6336796Y2 (en) | ||
| JPS60167494U (en) | Diffuser for speakers | |
| JPS5846613Y2 (en) | speaker device | |
| JPS59183063U (en) | Acoustic coupler handset receiver structure | |
| JPS58147389U (en) | head horn | |
| JPS6077192U (en) | composite speaker | |
| JPS6077190U (en) | composite speaker | |
| JPS57133797A (en) | Speaker system | |
| JPS59111393U (en) | Lead wire holding structure in speakers, etc. | |
| JPS619988U (en) | Bass reflex speaker box | |
| JPS6077191U (en) | composite speaker | |
| JPS5843082U (en) | Auxiliary speaker system for acoustic power compensation | |
| JPS58196797A (en) | speaker cabinet | |
| JPS59194798U (en) | Horn for bass reproduction | |
| JPS5893089U (en) | speaker device | |
| DOBASHI et al. | Acoustical studies of sound-producing sands(acoustic properties of sand grains under compression loads) | |
| JPS60105710U (en) | building board | |
| JPS62114593U (en) | ||
| JPH0398523U (en) |