JPS58133304U - Electroretinometer waveform stabilization circuit - Google Patents

Electroretinometer waveform stabilization circuit

Info

Publication number
JPS58133304U
JPS58133304U JP2896982U JP2896982U JPS58133304U JP S58133304 U JPS58133304 U JP S58133304U JP 2896982 U JP2896982 U JP 2896982U JP 2896982 U JP2896982 U JP 2896982U JP S58133304 U JPS58133304 U JP S58133304U
Authority
JP
Japan
Prior art keywords
electroretinometer
stabilization circuit
filter
erg
waveform stabilization
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
Application number
JP2896982U
Other languages
Japanese (ja)
Other versions
JPS6232001Y2 (en
Inventor
桑山　隆夫
Original Assignee
日本光電工業株式会社
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 日本光電工業株式会社 filed Critical 日本光電工業株式会社
Priority to JP2896982U priority Critical patent/JPS58133304U/en
Publication of JPS58133304U publication Critical patent/JPS58133304U/en
Application granted granted Critical
Publication of JPS6232001Y2 publication Critical patent/JPS6232001Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Gyroscopes (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は典型的なＥＲＧ波形、第２図及び第３図はそれ
ぞれ本考案による実施例回路、第４図及び第５図はそれ
ぞれ第２図及び第３図による回路の各部波形を示す。 １・・・・・・バイパスフィルタ、３，１３・・・・・
・ホールド回路、１１・・・・・・ローパスフィルタ。FIG. 1 shows a typical ERG waveform, FIGS. 2 and 3 show an example circuit according to the present invention, and FIGS. 4 and 5 show waveforms of various parts of the circuit according to FIGS. 2 and 3, respectively. 1... Bypass filter, 3, 13...
-Hold circuit, 11...Low pass filter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光刺激の発生後す波の終端近辺でＥＲＧ信号路に挿入さ
れ、かつＥＯＧ信号をしゃ断し得るバイパスフィルタと
、このフィルタの挿入直前のＥＲＧ信号と挿入直後のＥ
ＲＧ信号とのレベル変化に相当する電圧を保持するホー
ルド回路と、このホールド回路の出力電圧を前記挿入直
後からのＥＲＧ信号に前記変化分を補償するように加え
る加算回路とを有することを特徴とする網膜電位計の波
形安定化回路。A bypass filter is inserted into the ERG signal path near the end of the wave after the generation of optical stimulation and can cut off the EOG signal, and the ERG signal immediately before the filter is inserted and the ERG signal immediately after the filter is inserted.
It is characterized by having a hold circuit that holds a voltage corresponding to a level change with respect to the RG signal, and an adder circuit that adds the output voltage of this hold circuit to the ERG signal immediately after the insertion so as to compensate for the change. Waveform stabilization circuit for electroretinometer.
JP2896982U 1982-03-03 1982-03-03 Electroretinometer waveform stabilization circuit Granted JPS58133304U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2896982U JPS58133304U (en) 1982-03-03 1982-03-03 Electroretinometer waveform stabilization circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2896982U JPS58133304U (en) 1982-03-03 1982-03-03 Electroretinometer waveform stabilization circuit

Publications (2)

Publication Number Publication Date
JPS58133304U true JPS58133304U (en) 1983-09-08
JPS6232001Y2 JPS6232001Y2 (en) 1987-08-17

Family

ID=30040779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2896982U Granted JPS58133304U (en) 1982-03-03 1982-03-03 Electroretinometer waveform stabilization circuit

Country Status (1)

Country Link
JP (1) JPS58133304U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02167133A (en) * 1987-03-28 1990-06-27 Toyo Medical Kk Method for measuring waveform of cornea potential chart

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02167133A (en) * 1987-03-28 1990-06-27 Toyo Medical Kk Method for measuring waveform of cornea potential chart

Also Published As

Publication number Publication date
JPS6232001Y2 (en) 1987-08-17

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