JPS58109035U - Photometric circuit - Google Patents
Photometric circuitInfo
- Publication number
- JPS58109035U JPS58109035U JP18680882U JP18680882U JPS58109035U JP S58109035 U JPS58109035 U JP S58109035U JP 18680882 U JP18680882 U JP 18680882U JP 18680882 U JP18680882 U JP 18680882U JP S58109035 U JPS58109035 U JP S58109035U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- photometric circuit
- offset voltage
- photometric
- 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
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (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図は本考案に係る測光回路をカメラに適用した場合
の一実施例の回路接続図、第２図は本考案の測光回路の
出力特性を説明するための特性−１第３図は本考案に係
る測光回路の他の実施例の回路接続図。第４図は本考案
の測光回路に適用される演算増幅器の一実施例を例示す
る回路接続図。
８・・・・・・受光素子、９・・・・・・演算増幅器、
１４・・・・・・抵抗。Fig. 1 is a circuit connection diagram of an embodiment of the photometric circuit according to the present invention applied to a camera, Fig. 2 is a characteristic-1 diagram for explaining the output characteristics of the photometric circuit of the present invention, and Fig. 3 is a diagram of the present invention. FIG. 6 is a circuit connection diagram of another embodiment of the photometric circuit according to the invention. FIG. 4 is a circuit connection diagram illustrating one embodiment of an operational amplifier applied to the photometric circuit of the present invention. 8... Light receiving element, 9... Operational amplifier,
14...Resistance.
Claims (1)
間に接続して受光素子出力を増巾する増巾器と、前記受
光素子からのリーク電流を補償するためのバイアス電圧
を前記受光素子に印加する様にオフセット電圧の設定が
なされているオフセット電圧調整手段とを具備する測光
回路。a light-receiving element that receives object light; an amplifier that connects the light-receiving element between input terminals to amplify the output of the light-receiving element; and a bias voltage for compensating for leakage current from the light-receiving element. and an offset voltage adjusting means configured to set an offset voltage such that the offset voltage is applied to the photometric circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18680882U JPS58109035U (en) | 1982-12-09 | 1982-12-09 | Photometric circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18680882U JPS58109035U (en) | 1982-12-09 | 1982-12-09 | Photometric circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58109035U true JPS58109035U (en) | 1983-07-25 |
Family
ID=30102701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18680882U Pending JPS58109035U (en) | 1982-12-09 | 1982-12-09 | Photometric circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58109035U (en) |
-
1982
- 1982-12-09 JP JP18680882U patent/JPS58109035U/en active Pending
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