JPH0241201U - - Google Patents
Info
- Publication number
- JPH0241201U JPH0241201U JP11968488U JP11968488U JPH0241201U JP H0241201 U JPH0241201 U JP H0241201U JP 11968488 U JP11968488 U JP 11968488U JP 11968488 U JP11968488 U JP 11968488U JP H0241201 U JPH0241201 U JP H0241201U
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- ultrasonic vibrator
- control circuit
- circuit device
- drive signal
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 1
- 230000020169 heat generation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Description
第１図は本考案の一実施例を示す電気的構成の
ブロツク図である。
図中、１は自動車用ドアミラー、３はミラー本
体、４は超音波振動子、５は温度センサ、６は制
御回路装置、７は発振器、１１は周波数切換回路
、１２は切換回路、１３は信号変換回路、１４は
電圧発生回路、１５は比較回路、１６は切換スイ
ツチを示す。
FIG. 1 is a block diagram of an electrical configuration showing one embodiment of the present invention. In the figure, 1 is an automobile door mirror, 3 is a mirror body, 4 is an ultrasonic vibrator, 5 is a temperature sensor, 6 is a control circuit device, 7 is an oscillator, 11 is a frequency switching circuit, 12 is a switching circuit, and 13 is a signal 14 is a voltage generation circuit, 15 is a comparison circuit, and 16 is a changeover switch.
Claims (1)
け、この超音波振動子の振動に応じて前記ミラー
本体の表面に付着した水分を霧化させるようにし
た防曇機能付きミラーにおいて、前記超音波振動
子に対しこれを厚み方向振動させる第１の共振周
波数の駆動信号を与える第１の状態と上記超音波
振動子に対しこれを長さ方向或は径方向振動させ
る第２の共振周波数の駆動信号を与える第２の状
態とに切換可能な制御回路装置と、前記ミラー本
体の温度を検知するように設けられた温度センサ
とを備え、前記制御回路装置は前記超音波振動子
の厚み方向振動に伴う発熱を前記温度センサの検
知出力に基づいて制御するように構成されている
ことを特徴とする防曇機能付きミラー。 In the mirror with an anti-fog function, a plate-shaped ultrasonic vibrator is attached to the back surface of the mirror body, and moisture attached to the surface of the mirror body is atomized according to the vibration of the ultrasonic vibrator. A first state in which a drive signal of a first resonant frequency is applied to the ultrasonic vibrator to vibrate it in the thickness direction, and a second state in which a drive signal of a resonant frequency is applied to the ultrasonic vibrator to vibrate it in the lengthwise or radial direction. The control circuit device includes a control circuit device capable of switching to a second state that provides a drive signal, and a temperature sensor provided to detect the temperature of the mirror body, and the control circuit device is configured to operate in the thickness direction of the ultrasonic transducer. A mirror with an anti-fog function, characterized in that the mirror is configured to control heat generation due to vibration based on the detection output of the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11968488U JPH068563Y2 (en) | 1988-09-12 | 1988-09-12 | Mirror with anti-fog function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11968488U JPH068563Y2 (en) | 1988-09-12 | 1988-09-12 | Mirror with anti-fog function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241201U true JPH0241201U (en) | 1990-03-22 |
| JPH068563Y2 JPH068563Y2 (en) | 1994-03-02 |
Family
ID=31365128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11968488U Expired - Lifetime JPH068563Y2 (en) | 1988-09-12 | 1988-09-12 | Mirror with anti-fog function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068563Y2 (en) |
-
1988
- 1988-09-12 JP JP11968488U patent/JPH068563Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068563Y2 (en) | 1994-03-02 |
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