JPS61179534U - - Google Patents
Info
- Publication number
- JPS61179534U JPS61179534U JP6287785U JP6287785U JPS61179534U JP S61179534 U JPS61179534 U JP S61179534U JP 6287785 U JP6287785 U JP 6287785U JP 6287785 U JP6287785 U JP 6287785U JP S61179534 U JPS61179534 U JP S61179534U
- Authority
- JP
- Japan
- Prior art keywords
- camera
- shooting screen
- different subjects
- measurement signals
- signals
- 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
- 238000005259 measurement Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
Description
第１図はこの考案の一実施例を示す回路図、第
２図は発光ダイオードとＰＳＤとの関係を示す図
、第３図は測距枠を示す図、第４図は信号処理回
路の内部構成の一部を示す回路図である。
１ａ，１ｂ，２ａ〜２ｉ……発光ダイオード、
３ａ，３ｂ……ポジシヨン・センシテイブ・デバ
イス（ＰＳＤ）、９ｉ……信号処理回路、９ｌ…
…Ａ／Ｄ変換回路、９ｎ……カウンタ。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a diagram showing the relationship between the light emitting diode and PSD, Figure 3 is a diagram showing the ranging frame, and Figure 4 is the inside of the signal processing circuit. FIG. 2 is a circuit diagram showing a part of the configuration. 1a, 1b, 2a to 2i... light emitting diode,
3a, 3b...Position sensitive device (PSD), 9i...Signal processing circuit, 9l...
...A/D conversion circuit, 9n...counter.
Claims (1)
信号によつて焦点調節を行なうカメラの自動焦点
装置において、撮影画面内の異なる被写体に測定
用信号を送出する手段と、それらの異なる被写体
から反射されてきた信号のうち最も強い信号を選
択する手段とを備えたことを特徴とするカメラの
自動焦点装置。 In an autofocus device for a camera that automatically measures the distance to a subject and adjusts the focus based on the signal obtained, a means for sending measurement signals to different subjects within the shooting screen, and a means for transmitting measurement signals to different subjects in the shooting screen, and An automatic focusing device for a camera, comprising: means for selecting the strongest signal among signals reflected from the camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6287785U JPS61179534U (en) | 1985-04-26 | 1985-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6287785U JPS61179534U (en) | 1985-04-26 | 1985-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61179534U true JPS61179534U (en) | 1986-11-08 |
Family
ID=30592501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6287785U Pending JPS61179534U (en) | 1985-04-26 | 1985-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61179534U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165821A (en) * | 1981-04-07 | 1982-10-13 | Nippon Kogaku Kk <Nikon> | Ttl automatic focusing device of camera |
| JPS58201015A (en) * | 1982-05-20 | 1983-11-22 | Canon Inc | Distance measuring device |
| JPS59151116A (en) * | 1983-02-17 | 1984-08-29 | Canon Inc | Automatic focusing device |
-
1985
- 1985-04-26 JP JP6287785U patent/JPS61179534U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165821A (en) * | 1981-04-07 | 1982-10-13 | Nippon Kogaku Kk <Nikon> | Ttl automatic focusing device of camera |
| JPS58201015A (en) * | 1982-05-20 | 1983-11-22 | Canon Inc | Distance measuring device |
| JPS59151116A (en) * | 1983-02-17 | 1984-08-29 | Canon Inc | Automatic focusing device |
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