JPS5860244U - Photometric circuit - Google Patents
Photometric circuitInfo
- Publication number
- JPS5860244U JPS5860244U JP11932682U JP11932682U JPS5860244U JP S5860244 U JPS5860244 U JP S5860244U JP 11932682 U JP11932682 U JP 11932682U JP 11932682 U JP11932682 U JP 11932682U JP S5860244 U JPS5860244 U JP S5860244U
- Authority
- JP
- Japan
- Prior art keywords
- photometric
- signal
- information signal
- light
- fluctuation component
- 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.)
- Pending
Links
- 238000005375 photometry Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の測光回路の一実施例を示すブロック線
図、第２図は第１図り点に印加される電圧特性を示す特
性図、第３図は本考案の他の実施例を示すブロック線図
である。
Ａ１． Ａ、、 Ａ３． Ａ４． Ａ５・・・・・・オ
ペアンプ、Ｄ工・・・・・・受光素子、Ｄ２・・・・・
・ログダイオード、Ｃ１・・・・・・コンデンサー、Ｒ
□、 Ｒ２，Ｒ３，Ｒ，、Ｒ５，Ｒ６，Ｒ７，Ｒ８゜Ｒ
，ｅ・・・・・抵抗。FIG. 1 is a block diagram showing one embodiment of the photometric circuit of the present invention, FIG. 2 is a characteristic diagram showing the voltage characteristics applied to the first measurement point, and FIG. 3 is a block diagram showing another embodiment of the present invention. FIG. A1. A,, A3. A4. A5...Operational amplifier, D-type...Light receiving element, D2...
・Log diode, C1... Capacitor, R
□, R2, R3, R,, R5, R6, R7, R8゜R
, e... Resistance.
Claims (1)
の入射光に応じた測光情報信号を出力する測光手段と、
この測光手段に接続されて上記測光情報信号を入力する
と共に、上記測光情報信号に含まれる変動成分信号のみ
を通過させるフィルタ一手段と、上記測光手段からの測
光情報信号と上記フィルタ一手段からの変動成分信号も
しくはその反転信号とを演算することにより上記測光情
報信号から上記変動成分信号を除去する演算手段とから
なることを特徴とする測光回路。a single light-receiving element into which field light is incident; a photometric means for outputting a photometric information signal according to the light incident on the light-receiving element;
a filter connected to the photometric means to input the photometric information signal and pass only a fluctuation component signal included in the photometric information signal; A photometric circuit comprising a calculation means for removing the fluctuation component signal from the photometry information signal by calculating the fluctuation component signal or its inverted signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11932682U JPS5860244U (en) | 1982-08-05 | 1982-08-05 | Photometric circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11932682U JPS5860244U (en) | 1982-08-05 | 1982-08-05 | Photometric circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5860244U true JPS5860244U (en) | 1983-04-23 |
Family
ID=29913401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11932682U Pending JPS5860244U (en) | 1982-08-05 | 1982-08-05 | Photometric circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5860244U (en) |
-
1982
- 1982-08-05 JP JP11932682U patent/JPS5860244U/en active Pending
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