JPS5954811U - camera ranging device - Google Patents
camera ranging deviceInfo
- Publication number
- JPS5954811U JPS5954811U JP15073382U JP15073382U JPS5954811U JP S5954811 U JPS5954811 U JP S5954811U JP 15073382 U JP15073382 U JP 15073382U JP 15073382 U JP15073382 U JP 15073382U JP S5954811 U JPS5954811 U JP S5954811U
- Authority
- JP
- Japan
- Prior art keywords
- light
- semiconductor device
- device sensor
- ranging device
- subject
- 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
- Measurement Of Optical Distance (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、半導体装置センサーの構造の一例を示す拡大
断面図、第２図は、本考案の一実施例を示すカメラの測
距装置の概要図、第３図は、上記第２図に示した測距装
置における、半導体装置センサーとスポット光の入射位
置との関係を示す拡大平面図、第４図は、上記第２図に
示した測距袋 置における演算回路の電気回路図
である。
ＡＤ１〜ＡＤ３・・・・・・アンド回路、Ｄｌ・・・・
・・赤外発光ダイオード（赤外ＬＥＤ）、Ｄ２・・・・
・・半導体装置センサー（ＰＳＤ）、１１．Ｉ２・・・
・・・光電流（位置信号） 、ＩＮｌ。
ＩＮ２・・・・・・インバーター、Ｌ□・・・・・・ス
ポット光、０□・・・・・・投光用光学系、Ｌ２・・・
・・・反射光、０２・・・・・・受光用光学系、Ｒ９・
・・・・・帰還抵抗、Ｓ・・・・・・被写体、ＯＰ１〜
ＯＰ、・・・・・・オペアンプ、Ｑｌ・・・・・・対数
圧縮トランジスター、Ｑ２・・・・・・対数伸張トラン
ジスター、Ｓｌ・・・・・・常焦点信号（測距信号）、
Ｓ２・・・・・・近距離信号（測距信号）、Ｓ３・・・
・・・遠距離信号（測距信号）。FIG. 1 is an enlarged sectional view showing an example of the structure of a semiconductor device sensor, FIG. 2 is a schematic diagram of a camera distance measuring device showing an embodiment of the present invention, and FIG. 3 is similar to FIG. 2 above. FIG. 4 is an enlarged plan view showing the relationship between the semiconductor device sensor and the spot light incident position in the distance measuring device shown, and is an electrical circuit diagram of the arithmetic circuit in the distance measuring bag shown in FIG. 2 above. . AD1 to AD3...AND circuit, Dl...
・・Infrared light emitting diode (infrared LED), D2・・・・
...Semiconductor device sensor (PSD), 11. I2...
... Photocurrent (position signal), INl. IN2...Inverter, L□...Spot light, 0□...Optical system for light projection, L2...
...Reflected light, 02... Optical system for light reception, R9.
...Feedback resistance, S...Subject, OP1~
OP, ... operational amplifier, Ql ... logarithmic compression transistor, Q2 ... logarithmic expansion transistor, Sl ... common focal point signal (distance measurement signal),
S2... Short distance signal (distance measurement signal), S3...
...Long distance signal (distance measurement signal).
Claims (1)
と、 この投光手段から離間して設けられていて、常焦点ゾー
ンに位置する被写体からの上記スポット光の反射光がほ
ぼ中央に結像するように位置決めされた半導体装置セン
サーと、この半導体装置センサーから出力される複数の
位置信号に減算を施して測距信号を得る演算回路と、 を具備することを特徴とするカメラの測距装置。[Scope of Claim for Utility Model Registration] Light projecting means for projecting a spot light for distance measurement toward a subject; and the above-mentioned spot provided away from the light projecting means from the subject located in the normal focal zone. A semiconductor device sensor positioned so that reflected light is imaged approximately at the center, and an arithmetic circuit that performs subtraction on a plurality of position signals output from the semiconductor device sensor to obtain a ranging signal. A camera distance measuring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15073382U JPS5954811U (en) | 1982-10-04 | 1982-10-04 | camera ranging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15073382U JPS5954811U (en) | 1982-10-04 | 1982-10-04 | camera ranging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5954811U true JPS5954811U (en) | 1984-04-10 |
Family
ID=30334230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15073382U Pending JPS5954811U (en) | 1982-10-04 | 1982-10-04 | camera ranging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5954811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63277922A (en) * | 1987-05-11 | 1988-11-15 | Canon Inc | Length measuring instrument |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158508A (en) * | 1981-03-26 | 1982-09-30 | Minolta Camera Co Ltd | Distance detecting device |
-
1982
- 1982-10-04 JP JP15073382U patent/JPS5954811U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158508A (en) * | 1981-03-26 | 1982-09-30 | Minolta Camera Co Ltd | Distance detecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63277922A (en) * | 1987-05-11 | 1988-11-15 | Canon Inc | Length measuring instrument |
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