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JPS6355338B2 - - Google Patents
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JPS6355338B2 - - Google Patents

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Publication number
JPS6355338B2
JPS6355338B2 JP57193609A JP19360982A JPS6355338B2 JP S6355338 B2 JPS6355338 B2 JP S6355338B2 JP 57193609 A JP57193609 A JP 57193609A JP 19360982 A JP19360982 A JP 19360982A JP S6355338 B2 JPS6355338 B2 JP S6355338B2
Authority
JP
Japan
Prior art keywords
circuit
flash lamp
vocal cords
capacitor
synchronizing 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.)
Expired
Application number
JP57193609A
Other languages
Japanese (ja)
Other versions
JPS5982832A (en
Inventor
Koshu Nagashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP57193609A priority Critical patent/JPS5982832A/en
Publication of JPS5982832A publication Critical patent/JPS5982832A/en
Publication of JPS6355338B2 publication Critical patent/JPS6355338B2/ja
Granted legal-status Critical Current

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  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Endoscopes (AREA)

Description

【発明の詳細な説明】 本発明は喉頭ストロボスコープ装置の電源に関
する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power supply for a laryngeal stroboscope device.

喉頭ストロボスコープ装置は声帯の振動にスト
ロボを同期発光させることにより、声帯ポリー
プ、喉頭癌等の検査、診断を行なう装置である。
喉頭ストロボスコープ装置の光源としては通常フ
ラツシユランプが用いられている。フラツシユラ
ンプの発光は、そのアノード、カソード間に並列
に接続されたコンデンサーの電荷をトリガ信号に
よつて短時間にフラツシユランプに放電すること
により行なわれる。すなわち、声帯の振動に同期
したトリガ信号によつてフラツシユランプの発光
を行なうことが可能である。
A laryngeal stroboscope device is a device that tests and diagnoses vocal cord polyps, laryngeal cancer, etc. by emitting a strobe light in synchronization with the vibration of the vocal cords.
A flash lamp is usually used as a light source for a laryngeal stroboscope device. The flash lamp emits light by discharging the charge of a capacitor connected in parallel between its anode and cathode into the flash lamp in a short period of time in response to a trigger signal. That is, it is possible to cause the flash lamp to emit light using a trigger signal synchronized with the vibration of the vocal cords.

今、声帯の振動数をf、フラツシユランプのア
ノード、カソード間に接続されたコンデンサーの
容量をC、コンデンサーに印加された電圧をVと
すると、フラツシユランプに単位時間に入力され
るエネルギーWはW=CV2f/2である。従来の
喉頭ストロボスコープ装置においては、電圧Vは
声帯の振動数fによらず常に一定であるため、前
記エネルギーWは声帯の振動数fに比例する。ま
た、フラツシユランプの発光光量はエネルギーW
に比例するため、声帯の振動数fが小さくなる程
光量が低下するという欠点があつた。
Now, if the frequency of the vocal cords is f, the capacitance of the capacitor connected between the anode and cathode of the flash lamp is C, and the voltage applied to the capacitor is V, then the energy input to the flash lamp per unit time is W. is W=CV 2 f/2. In the conventional laryngeal stroboscope device, the voltage V is always constant regardless of the frequency f of the vocal cords, so the energy W is proportional to the frequency f of the vocal cords. Also, the amount of light emitted by the flash lamp is energy W
Therefore, as the frequency f of the vocal cords becomes smaller, the amount of light decreases.

近年、喉頭ストロボスコープ装置とフアイバー
スコープの接続による検査、診断が頻繁に行なわ
れるようになつたため、喉頭ストロボスコープ装
置の光源の光量増加が強く望まれている。
In recent years, inspections and diagnoses by connecting a laryngeal stroboscope device and a fiberscope have become more frequent, so there is a strong desire to increase the amount of light from the light source of the laryngeal stroboscope device.

本発明は、従来の欠点を改良して、最近の要望
に応えるためになされたもので、コンデンサーに
印加される電圧Vを声帯の振動数fの1/2乗の逆
数1/√に比例させることによつて、フラツシ
ユランプの光量を声帯の振動数に無関係に常に一
定に保ち、声帯の振動数が小さい場合において
も、単位時間あたりの発光光量が低下しない喉頭
ストロボスコープ装置を提供しようとするもので
ある。
The present invention was made to improve the conventional drawbacks and meet recent demands, and makes the voltage V applied to the capacitor proportional to the inverse number 1/√ of the 1/2 power of the frequency f of the vocal cords. In particular, it is an object of the present invention to provide a laryngeal stroboscope device in which the light intensity of a flash lamp is always kept constant regardless of the frequency of vibration of the vocal cords, and the amount of light emitted per unit time does not decrease even when the frequency of vocal cords is small. It is something to do.

以下図面に従つて、本発明の一実施例の詳細を
示す。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of an embodiment of the present invention will be described below with reference to the drawings.

第1図は本発明の喉頭ストロボスコープ装置の
一実施例のブロツク図である。同図において、声
帯振動信号はマイク1で検知され、波形整形回路
2に入力される。波形整形回路2は声帯の振動信
号をパルスに変換して、そのパルスを積分回路3
に入力する。積分回路3は前記パルスが入力され
るまで一定の増分巾でその出力を増加させ、パル
スが入力されるとその出力をリセツトして零とす
る。4は関数発生器で、積分回路3の出力値をそ
の1/2乗の値に変換する。関数発生器4の出力は
増巾器5で高電圧に増巾され、その高電圧はコン
デンサー6に印加される。
FIG. 1 is a block diagram of one embodiment of the laryngeal stroboscope apparatus of the present invention. In the figure, a vocal cord vibration signal is detected by a microphone 1 and input to a waveform shaping circuit 2. The waveform shaping circuit 2 converts the vibration signal of the vocal cords into pulses, and the pulses are sent to the integrating circuit 3.
Enter. The integrating circuit 3 increases its output at a constant increment width until the pulse is input, and when the pulse is input, the output is reset to zero. 4 is a function generator which converts the output value of the integrating circuit 3 into a value raised to the 1/2 power thereof. The output of the function generator 4 is amplified to a high voltage by an amplifier 5, and the high voltage is applied to a capacitor 6.

なおマイク1と波形整形回路2により同期信号
形成回路を形成する。
Note that the microphone 1 and the waveform shaping circuit 2 form a synchronizing signal forming circuit.

一方、波形整形回路2の出力はトリガ回路7に
入力される。トリガ回路7の出力に同期して、コ
ンデンサー6の充電エネルギーは短時間にフラツ
シユランプ8に入力される。その結果、声帯振動
信号に同期したフラツシユランプの発光が行なわ
れる。
On the other hand, the output of the waveform shaping circuit 2 is input to the trigger circuit 7. In synchronization with the output of the trigger circuit 7, the charging energy of the capacitor 6 is input to the flash lamp 8 in a short time. As a result, the flash lamp emits light in synchronization with the vocal fold vibration signal.

第1図におけるマイク1、波形整形回路2、積
分回路3、増巾回路5の各出力信号を第2図a,
b,c,dに示す。
The output signals of the microphone 1, waveform shaping circuit 2, integrating circuit 3, and amplification circuit 5 in FIG. 1 are shown in FIG.
Shown in b, c, d.

第2図aのマイク1の出力信号は声帯の振動信
号に対応している。第2図bは声帯の振動信号に
対応したマイク1の出力信号に同期して出力され
るパルスで、そのパルス間隔tは声帯の振動数f
の逆数1/fとなる。次に積分回路3の出力信号
が第2図cに示されており、その出力信号のレベ
ルの最大値Vはパルス間隔t、すなわち1/fに
比例している。次に増巾回路5の出力信号は積分
回路3の出力信号の1/2乗であるから、増巾回路
5の出力信号のレベルの最大値Vpは前記Vの1/2
乗に比例する。従つてKを比例定数とすると、 Vp=K/√である。また、前記コンデンサ
ー6の印加電圧はVpであるから、フラツシユラ
ンプへの入力エネルギーWは W=CVp 2f/2=CK2/2となり一定値となる。
従つてフラツシユランプの光量は入力エネルギー
Wに比例するため、フラツシユランプの光量は声
帯の振動数によらず常に一定となる。
The output signal of the microphone 1 in FIG. 2a corresponds to the vibration signal of the vocal cords. Figure 2b shows a pulse output in synchronization with the output signal of microphone 1 corresponding to the vibration signal of the vocal cords, and the pulse interval t is the frequency of vibration of the vocal cords f.
The reciprocal of is 1/f. Next, the output signal of the integrating circuit 3 is shown in FIG. 2c, and the maximum level V of the output signal is proportional to the pulse interval t, that is, 1/f. Next, since the output signal of the amplifying circuit 5 is the 1/2 power of the output signal of the integrating circuit 3, the maximum value V p of the level of the output signal of the amplifying circuit 5 is 1/2 of the above V.
Proportional to the power. Therefore, if K is a proportionality constant, then V p =K/√. Furthermore, since the voltage applied to the capacitor 6 is V p , the input energy W to the flash lamp is W=CV p 2 f/2=CK 2 /2, which is a constant value.
Therefore, since the amount of light from the flash lamp is proportional to the input energy W, the amount of light from the flash lamp is always constant regardless of the frequency of the vocal cords.

この様に本発明によれば、声帯の振動数と無関
係にフラツシユランプへの入力エネルギーが一定
となるので、入力エネルギーをフラツシユランプ
の最大定格に設定することが可能となる。すなわ
ち、フラツシユランプの入力エネルギーに比例す
る発光光量をフラツシユランプの最大定格に設定
することが可能であるため、声帯の振動数によら
ない、発光光量の大きい喉頭ストロボスコープ装
置を提供することが可能となる。
As described above, according to the present invention, the input energy to the flash lamp is constant regardless of the frequency of vibration of the vocal cords, so it is possible to set the input energy to the maximum rating of the flash lamp. In other words, it is possible to set the maximum rating of the flash lamp to the amount of light emitted that is proportional to the input energy of the flash lamp, so that it is possible to provide a laryngeal stroboscope device that has a large amount of light that is emitted regardless of the frequency of vibration of the vocal cords. becomes possible.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示すブロツク図、
第2図は第1図のブロツク内の信号を示す。 1……マイク、2……波形整形回路、3……積
分回路、4……関数発生器、5……増巾回路、7
……トリガ回路、8……フラツシユランプ。
FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 shows the signals within the block of FIG. 1...Microphone, 2...Waveform shaping circuit, 3...Integrator circuit, 4...Function generator, 5...Amplification circuit, 7
...Trigger circuit, 8...Flash lamp.

Claims (1)

【特許請求の範囲】 1 声帯の振動に同期して発光するフラツシユラ
ンプを用いた喉頭ストロボスコープ装置であつ
て、 声帯の振動の周期に同期した同期信号を形成す
る同期信号形成回路と、 この同期信号形成回路からの同期信号によつて
リセツトされ、該同期信号の同期間隔の間積分動
作を行なう積分回路と、 この積分回路の出力を1/2乗する関数発生回路
と、 この関数発生回路の出力に応じた電圧が加印さ
れるコンデンサと、 前記同期信号形成回路からの同期信号によつて
作動するトリガ回路とを備え、 このトリガ回路によつて前記フラツシユランプ
をトリガして前記コンデンサの電荷を前記フラツ
シユランプのアノード、カソード間に放電させる
ようにしたことを特徴とする喉頭ストロボスコー
プ装置。
[Claims] 1. A laryngeal stroboscope device using a flash lamp that emits light in synchronization with the vibration of the vocal cords, comprising: a synchronization signal forming circuit that forms a synchronization signal synchronized with the cycle of the vibration of the vocal cords; An integrating circuit that is reset by a synchronizing signal from a synchronizing signal forming circuit and performs an integrating operation during the synchronizing interval of the synchronizing signal; a function generating circuit that raises the output of this integrating circuit to the 1/2 power; and this function generating circuit. a capacitor to which a voltage is applied according to the output of the capacitor, and a trigger circuit activated by a synchronizing signal from the synchronizing signal forming circuit, the trigger circuit triggering the flash lamp to discharge the capacitor. A laryngeal stroboscope apparatus characterized in that the electric charge is discharged between an anode and a cathode of the flash lamp.
JP57193609A 1982-11-04 1982-11-04 Treachea stroboscope apparatus Granted JPS5982832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57193609A JPS5982832A (en) 1982-11-04 1982-11-04 Treachea stroboscope apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57193609A JPS5982832A (en) 1982-11-04 1982-11-04 Treachea stroboscope apparatus

Publications (2)

Publication Number Publication Date
JPS5982832A JPS5982832A (en) 1984-05-14
JPS6355338B2 true JPS6355338B2 (en) 1988-11-02

Family

ID=16310789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57193609A Granted JPS5982832A (en) 1982-11-04 1982-11-04 Treachea stroboscope apparatus

Country Status (1)

Country Link
JP (1) JPS5982832A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290673A (en) * 1992-09-08 1994-10-18 Fujitsu Ten Ltd Push button operation mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4943954B2 (en) * 2007-06-28 2012-05-30 ニチアス株式会社 Thermal insulation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290673A (en) * 1992-09-08 1994-10-18 Fujitsu Ten Ltd Push button operation mechanism

Also Published As

Publication number Publication date
JPS5982832A (en) 1984-05-14

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