JPS6249135U - - Google Patents
Info
- Publication number
- JPS6249135U JPS6249135U JP14112885U JP14112885U JPS6249135U JP S6249135 U JPS6249135 U JP S6249135U JP 14112885 U JP14112885 U JP 14112885U JP 14112885 U JP14112885 U JP 14112885U JP S6249135 U JPS6249135 U JP S6249135U
- Authority
- JP
- Japan
- Prior art keywords
- photometry
- focus
- output
- focus adjustment
- method switching
- 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 description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 2
Description
第１図は本考案の実施態様の構成の一例を示す
ブロツク図、第２図は本考案の第１実施例に係る
自動焦点調整式カメラの回路図、第３図は第２実
施例に係る回路図、第４図は第３実施例に係る回
路図、第５図はコンテイニユアスＡＦモードを有
する従来例のフアインダ視野の状態図、第６図は
ワンシヨツトＡＦモードを有する従来例のフアイ
ンダ視野の状態図、第７図はその場合のフローチ
ヤートである。
Ａ０１…自動焦点調整手段、Ａ０２…露出制御
手段、Ａ１…コンテイニユアスＡＦモード指令手
段、Ａ２…レンズ駆動手段、Ａ３…合焦検出手段
、Ａ４…焦点調整停止・測光方式切換指令手段、
Ａ５…スポツト測光手段、Ａ６…平均測光手段、
Ａ７…測光方式切換手段、Ａ８…露出演算手段、
１…ＡＦセンサ、２…アナログ処理・Ａ／Ｄ変換
回路、３…ＡＦセンサドライバ、４…ＡＦプロセ
ツサ、５…モータドライバ、Ｍ…レンズ移動用モ
ータ、７…スポツト測光用受光素子、８…平均測
光用受光素子、９…サンプルホールド回路、１０
…マルチプレクサ、１１…Ａ／Ｄ変換回路、１２
…ＡＥプロセツサ、１４…露出制御部、１５…ラ
ツチ回路、Ｂ１…測光制御回路、Ｂ２…測光制御
回路、Ｂ３…測光制御回路、ＦＦ…フリツプフロ
ツプ、Ｓｗ１…ＡＦ・ＡＥスタートスイツチ、Ｓ
ｗ２…レリーズスイツチ、Ｓｗ３…ＡＦモード選
択スイツチ。
FIG. 1 is a block diagram showing an example of the configuration of an embodiment of the present invention, FIG. 2 is a circuit diagram of an automatic focus adjustment camera according to the first embodiment of the present invention, and FIG. 3 is a circuit diagram according to the second embodiment. 4 is a circuit diagram according to the third embodiment, FIG. 5 is a state diagram of a conventional finder field of view having continuous AF mode, and FIG. 6 is a state diagram of a conventional finder field of view having one-shot AF mode. The state diagram in FIG. 7 is a flowchart in that case. A01...Automatic focus adjustment means, A02...Exposure control means, A1...Continuous AF mode command means, A2...Lens drive means, A3...Focus detection means, A4...Focus adjustment stop/photometering method switching command means,
A5...Spot photometry means, A6...Average photometry means,
A7...Photometering method switching means, A8...Exposure calculation means,
1... AF sensor, 2... Analog processing/A/D conversion circuit, 3... AF sensor driver, 4... AF processor, 5... Motor driver, M... Lens movement motor, 7... Light receiving element for spot photometry, 8... Average Photometric light receiving element, 9... Sample hold circuit, 10
...Multiplexer, 11...A/D conversion circuit, 12
...AE processor, 14...Exposure control unit, 15...Latch circuit, B1...Photometry control circuit, B2...Photometry control circuit, B3...Photometry control circuit, FF...Flip-flop, Sw1 ...AF/AE start switch, S
w 2 ...Release switch, Sw 3 ...AF mode selection switch.
Claims (1)
調整動作を再開する自動焦点調整手段と、 露出制御開始時に合焦状態であれば前記スポツ
ト測光手段の出力に基づいて、また非合焦状態で
あれば前記平均測光手段の出力に基づいて、それ
ぞれ露出制御する露出制御手段 とを備えた自動焦点調整式カメラ。 (2) 前記自動焦点調整手段が、 コンテイニユアスＡＦモード指令手段と、 撮影レンズの非合焦状態の検出信号に基づいて
レンズ移動を開始し、停止信号に基づいてレンズ
移動を停止するレンズ駆動手段と、 前記レンズ駆動手段によつてレンズが合焦状態
に達したときに合焦検出信号を出力する合焦検出
手段と、 前記コンテイニユアスＡＦモード指令手段の動
作状態で前記合焦検出手段から合焦検出信号が出
力されたときに、前記停止信号を出力するととも
に測光方式切換信号を出力する焦点調整停止・測
光方式切換指令手段 とから構成されており、 前記露出制御手段が、 露出演算手段と、 前記コンテイニユアスＡＦモード指令手段の動
作に基づいて前記平均測光手段から前記露出演算
手段に出力する状態と、前記焦点調整停止・測光
方式切換指令手段からの測光方式切換信号に基づ
いて前記スポツト測光手段から前記露出演算手段
に出力する状態とに切換える測光方式切換手段 とから構成されている実用新案登録請求の範囲第
(1)項記載の自動焦点調整式カメラ。[Scope of Claim for Utility Model Registration] (1) Spot photometry means, average photometry means, automatic focus adjustment means that restarts automatic focus adjustment operation when the object becomes out of focus even after reaching an in-focus state, and exposure control start. and an exposure control means for controlling the exposure based on the output of the spot photometry means when in focus, and based on the output of the average photometry means when out of focus. camera. (2) The automatic focus adjustment means includes a continuous AF mode command means, and a lens drive that starts lens movement based on a detection signal of an out-of-focus state of the photographic lens and stops lens movement based on a stop signal. means for outputting a focus detection signal when the lens reaches a focused state by the lens driving means; focus adjustment stop/photometering method switching command means for outputting the stop signal and a photometry method switching signal when a focus detection signal is output from the exposure control means; means, a state of output from the average photometry means to the exposure calculation means based on the operation of the continuous AF mode command means, and a photometry method switching signal from the focus adjustment stop/photometering method switching command means. and a photometry method switching means for switching the output from the spot photometry means to the exposure calculation means.
Automatic focus adjustment camera described in (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14112885U JPS6249135U (en) | 1985-09-13 | 1985-09-13 | |
| US06/905,974 US4792820A (en) | 1985-09-13 | 1986-09-11 | Camera with automatic focus and exposure control means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14112885U JPS6249135U (en) | 1985-09-13 | 1985-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6249135U true JPS6249135U (en) | 1987-03-26 |
Family
ID=31048629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14112885U Pending JPS6249135U (en) | 1985-09-13 | 1985-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249135U (en) |
-
1985
- 1985-09-13 JP JP14112885U patent/JPS6249135U/ja active Pending
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