JPH024A - Automatic focus detecting device for camera - Google Patents

Automatic focus detecting device for camera

Info

Publication number
JPH024A
JPH024A JP2315888A JP2315888A JPH024A JP H024 A JPH024 A JP H024A JP 2315888 A JP2315888 A JP 2315888A JP 2315888 A JP2315888 A JP 2315888A JP H024 A JPH024 A JP H024A
Authority
JP
Japan
Prior art keywords
optical system
distance measurement
lens
zone
peripheral
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.)
Granted
Application number
JP2315888A
Other languages
Japanese (ja)
Other versions
JP2666142B2 (en
Inventor
Osamu Shindo
修 進藤
Shigeo Toushi
重男 藤司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of JPH024A publication Critical patent/JPH024A/en
Application granted granted Critical
Publication of JP2666142B2 publication Critical patent/JP2666142B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2213/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B2213/02—Viewfinders
    • G03B2213/025—Sightline detection

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To easily and speedily perform photographing operation by providing peripheral range-finding zones on both sides of a central range-finding zone and performing automatic range-finding operation by means of an optical system for a periphery when an object is not in the center of a screen. CONSTITUTION:The peripheral range-finding zones 26 and 27 are provided on both sides of the central range-finding zone 12 of a finder 16. Autofocus optical systems 18 and 19 for peripheral range-finding operation are provided on the right and the left sides of an autofocus optical system 9 which faces the central zone in a camera main body A. The optical system 18 is constituted of separator lenses 20, 21 and a CCD 22, and the optical system 19 is similarly constituted of separator lenses 23, 24 and a CCD 25. When the desired object 2 is not in the center of the screen the automatic range-finding operation is performed through the use of the autofocus optical systems 18 and 19 for the peripheral range-finding operation. Then, conventional focus-locking operation, etc., is not necessary, and photographing operation can be easily and speedily performed.

Description

【発明の詳細な説明】 見肌夏且度 （産業上の利用分野） 本発明は、オートフォーカス光学系を有するカメラの自
動焦点検出装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic focus detection device for a camera having an autofocus optical system.

（従来の技術） 従来から、オートフォーカス光学系を有するカメラの自
動焦点検出装置がある。たとえば、第１８図は、オート
フォーカス光学系を有する一眼レフカメラの自動焦点検
出装置の光学系の概略構成を示している。その第１８図
において、１は撮影レンズ、２は被写体、３は視野マス
ク、４はコンデンサレンズ、５は絞りマスク、６．７は
像分割光学素子としてのセパレータレンズ、８は受光素
子とへ　　してのＣＣＤであり、視野マスク３．コンデ
ンサレンズ４．絞りマスク５．セパレータレンズ６．７
゜ＣＣ０８はオートフォーカス光学系９を構成し、この
オートフォーカス光学系９はモジュール化されてフォー
カスユニットを構成する。(Prior Art) Conventionally, there has been an automatic focus detection device for a camera having an autofocus optical system. For example, FIG. 18 shows a schematic configuration of an optical system of an automatic focus detection device for a single-lens reflex camera having an autofocus optical system. In Fig. 18, 1 is a photographing lens, 2 is a subject, 3 is a field mask, 4 is a condenser lens, 5 is an aperture mask, 6.7 is a separator lens as an image splitting optical element, and 8 is a light receiving element. It is a CCD with a field mask of 3. Condenser lens 4. Aperture mask 5. Separator lens 6.7
CC08 constitutes an autofocus optical system 9, and this autofocus optical system 9 is modularized to constitute a focus unit.

オートフォーカス光学系９の視野マスク３はフィルム等
価面１０の近傍に設けられている。フィルム等価面１０
は撮影レンズ１を介して被写体２と光学的に共役な位置
関係にある。そのフィルム等価面１０には、撮影レンズ
１が合焦状態にあるときに被写体２の像１１がピントの
合った状態で形成されるものである。コンデンサレンズ
４と絞りマスク５とは、撮影レンズｌの左右を通過する
撮影光を二つの光束に分割する機能を有し、セパレータ
レンズ６．７は、コンデンサレンズ４を介して撮影レン
ズｌと光学的に共役な位置関係にある。The field mask 3 of the autofocus optical system 9 is provided near the film equivalent surface 10. Film equivalent surface 10
is in an optically conjugate positional relationship with the subject 2 through the photographic lens 1. On the film equivalent surface 10, an image 11 of the subject 2 is formed in focus when the photographic lens 1 is in focus. The condenser lens 4 and the aperture mask 5 have the function of splitting the photographing light passing through the left and right sides of the photographic lens l into two luminous fluxes, and the separator lens 6.7 connects the photographic lens l and optical fibers via the condenser lens 4. are in a conjugate positional relationship.

そのセパシータレンズ６．７は、第１９図に模式的に示
すように、水平方向に配置されており、カメラ本体に設
けられたファインダーの中央測距ゾーン（第２２図の符
号１７参照）と光学的に共役な位置にある測距ゾーン１
２を介して、レンズマウント（図示を略す）に搭載され
た撮影レンズ１の射出瞳１３の仮想的な開口領域１４．
１５を覗いている。セパレータレンズ６．７には、その
開口領域１４．１５を通過した光束が採り込まれるもの
で、セパレータレンズ６．７によってフィルム等価面１
０に形成された像ｌｌｆｆｉＣＣＤ８上の２つの領域に
像１１として可屈成される。As schematically shown in Fig. 19, the sepacita lens 6.7 is arranged horizontally, and is connected to the center distance measuring zone (see reference numeral 17 in Fig. 22) of the finder provided on the camera body. Ranging zone 1 located at an optically conjugate position
2, a virtual aperture area 14.2 of the exit pupil 13 of the photographing lens 1 mounted on a lens mount (not shown).
I'm looking at 15. The separator lens 6.7 captures the light beam that has passed through its aperture area 14.15, and the separator lens 6.7 captures the light beam that has passed through the aperture area 14.15.
The image 11 formed on the image llffi is formed in two regions on the CCD 8.

その再形成された像１１の合焦時（第２０５１１（ａ）
参照）の像間隔を第２１図に示すように處。とする。こ
れに対して、第２０図（ｂ）に示すように合焦時に較べ
て前側で撮影レンズ１のピントがあっているときには、
像間隔が狭まってこれに対応する信号Ｓの間隔がＱ、よ
りも小さくなり、第２０図（Ｃ）に示すように合焦時に
較べて後側で撮影レンズ１のピントが合っているときに
は第２１図に示すように像間隔が広がってこれに対応す
る信号Ｓの間隔が２゜よりも大きくなる。When the re-formed image 11 is in focus (No. 20511(a)
(see) image spacing as shown in Figure 21. shall be. On the other hand, as shown in FIG. 20(b), when the photographing lens 1 is in focus on the front side compared to when it is in focus,
As the image interval narrows, the corresponding interval of the signals S becomes smaller than Q, and as shown in FIG. As shown in FIG. 21, the image interval widens and the corresponding signal S interval becomes larger than 2°.

この像間隔の変化が撮影レンズ１のデフォーカス量に比
例することから、たとえば、従来の一眼レフカメラの自
動焦点検出装置では、そのＣＣＤ　８の像間隔を検出し
、これを演算処理して撮影レンズ１のデフォーカス方向
とデフォーカス量とにより、撮影レンズｌを合焦位置に
可動させるものとなっている。そして、たとえば、第２
２図に示すように、ファインダー１６の中央に設けられ
た中央測距ゾーン１７に所望の被写体２が入るように構
図を決め、Ｗ！ｉ距を行なうと、自動的に撮影レンズ１
が合焦状態にまで移動され、その状態で撮影を行なうと
、被写体２にピントが合った撮影写真を得ることができ
る。Since this change in the image interval is proportional to the amount of defocus of the photographing lens 1, for example, in the automatic focus detection device of a conventional single-lens reflex camera, the image interval of the CCD 8 is detected, and this is arithmetic processed to take the image. The photographic lens 1 is moved to the in-focus position depending on the defocus direction and defocus amount of the lens 1. And, for example, the second
As shown in Figure 2, compose the shot so that the desired subject 2 falls within the central distance measurement zone 17 provided at the center of the finder 16, and then press W! When you perform i-distance, the shooting lens 1 is automatically
If the camera is moved to a focused state and photographing is performed in that state, a photographed photograph in which the subject 2 is in focus can be obtained.

（発明が解決しようとする課題） ところで、この従来の一眼レフカメラの自動焦点検出装
置では、測距ゾーンがファインダー１６の中央に設けら
れているので、このままでは得られた写真は所望の被写
体２が写真中央に位置することになる。しかし、所望の
被写体２を中央ではなくて写真周辺に配直した撮影写真
を得たい場合がある。そこで、従来の一眼レフカメラに
は、そのことを考慮して、フォーカスロック機構を設け
てあり、被写体２をファインダー１６の中央に位置させ
て被写体２までの距離を自動的に測距し、その状態でフ
ォーカスロックをかけ、第２３図に示すようにフレーミ
ングを行なって撮影すれば、周辺部に所望の被写体２を
配置した撮影写真を得ることができるようになっている
。(Problem to be Solved by the Invention) By the way, in this conventional automatic focus detection device of a single-lens reflex camera, the distance measurement zone is provided in the center of the finder 16, so if the photograph is taken as it is, the desired subject 2 will be located in the center of the photo. However, there are cases where it is desired to obtain a photograph in which the desired subject 2 is not placed in the center but at the periphery of the photograph. With this in mind, conventional single-lens reflex cameras are equipped with a focus lock mechanism that automatically measures the distance to the subject 2 by positioning the subject 2 in the center of the viewfinder 16. By locking the focus in this state and performing framing as shown in FIG. 23 to take a photograph, it is possible to obtain a photograph in which the desired subject 2 is placed in the periphery.

ところが、この従来の一眼レフカメラの自動焦点検出装
置では、被写体２を一度ファインダー１６の中央に位置
させ−ｔｉ影レンズｌを合焦状態にまで移動させ、この
状態でフォーカスロックをかけて撮影レンズ１を固定し
、構図を決めなおして撮影を行なうという撮影手順を踏
まなければならないために、撮影操作に手間がかかりす
ぎるという問題点がある。However, with this conventional automatic focus detection device for single-lens reflex cameras, the subject 2 is once positioned in the center of the viewfinder 16, the shadow lens 1 is moved to the in-focus state, and in this state the focus is locked and the photographing lens is moved. This poses a problem in that it takes too much time and effort to perform photographing operations because it is necessary to go through the photographing procedure of fixing the camera at a fixed position, recomposing the photograph, and then taking the photograph.

そ、こて、本発明の第１の目的は、カメラ本体に設けら
れたファインダーの中央測距ゾーンと光学的に略共役な
カメラ本体内の位置にオートフォーカス光学系の測距ゾ
ーンを配置すると共に、そのファインダーの中央測距ゾ
ーンの左右両側に周辺部測距ゾーンを設け、この周辺部
測距ゾーンと光学的に略共役なカメラ本体内の位置に周
辺部測距用のオートフォーカス光学系の測距ゾーンを配
置し、所望の被写体が画面の中央にない撮影写真を得た
い場合に面倒な撮影手順を踏まなくともその周辺部測距
用のオートフォーカス光学系を用いて、被写体までの距
離を自動的に測距し、レンズマウントに搭載された撮影
レンズを可動させて撮影レンズの合焦を行ない、周辺部
に所望の被写体を配置した撮影写真を得るための撮影操
作を手軽に迅速に行なうことのできるカメラの自動焦点
検出装置を提供することにある。The first object of the present invention is to arrange the distance measurement zone of the autofocus optical system at a position within the camera body that is optically approximately conjugate with the central distance measurement zone of the finder provided in the camera body. In addition, peripheral distance measurement zones are provided on both sides of the central distance measurement zone of the finder, and an autofocus optical system for peripheral distance measurement is installed at a position within the camera body that is optically approximately conjugate with the peripheral distance measurement zone. If you want to take a photo where the desired subject is not in the center of the screen, you can use the autofocus optical system to measure the distance to the periphery of the subject without having to go through troublesome shooting procedures. The distance is automatically measured, the photographic lens mounted on the lens mount is moved and the photographic lens is focused, and the photographic operation to obtain a photograph with the desired subject in the peripheral area is performed easily and quickly. An object of the present invention is to provide an automatic focus detection device for a camera that can perform the following functions.

次に、このようにカメラの自動焦点検出装置を構成した
場合、周辺部測距用のオートフォーカス光学系のセパレ
ータレンズは撮影レンズの射出瞳を所定の角度で覗いて
いないと、ビネッティングの影響を受けて、オートフォ
ーカス光学系の像検出精度が劣化する。そこで、カメラ
本体に着脱されるレンズマウントに搭載された撮影レン
ズのレンズ性能、たとえば、撮影レンズが短焦点である
か長焦点であるかに応じて周辺部測距用のオートフォー
カス光学系のセパレータレンズが撮影レンズ１の射出瞳
を覗く角度をその都度調整して設定しなければならない
ことになる。Next, when the camera's automatic focus detection device is configured in this way, if the separator lens of the autofocus optical system for peripheral distance measurement does not look into the exit pupil of the photographing lens at a predetermined angle, vignetting may occur. As a result, the image detection accuracy of the autofocus optical system deteriorates. Therefore, depending on the lens performance of the photographic lens mounted on the lens mount that is attached to and detached from the camera body, for example, whether the photographic lens is short focus or long focus, the separator of the autofocus optical system for peripheral distance measurement is The angle at which the lens looks into the exit pupil of the photographic lens 1 must be adjusted and set each time.

このレンズマウントに搭載された撮影レンズが短焦点で
あるか長焦点であるかに応じて周辺部測距用のオートフ
ォーカス光学系のセパレータレンズが撮影レンズの射出
瞳を覗く角度の調整・設定を手動により行なうのは、カ
メラ本体に着脱される交換可能のレンズマウントとして
、各種のレンズ群が準備されていることに鑑みると、カ
メラ本体の現格化に支障を生じる。Depending on whether the photographic lens mounted on this lens mount has a short focus or a long focus, the angle at which the separator lens of the autofocus optical system for peripheral distance measurement looks into the exit pupil of the photographic lens can be adjusted and set. In view of the fact that various lens groups are prepared as interchangeable lens mounts that can be attached to and removed from the camera body, manual operation poses a problem in the commercialization of camera bodies.

そこで、本発明の第２の目的は、レンズマウントのカメ
ラ本体への装着に応じて自動的に周辺部測距用のオート
フォーカス光学系の採り込む光束の向きが撮影レンズの
射出瞳の方向に向かうように角度の調整・設定を行なう
ことができるカメラの自動焦点検出装置を提供すること
にある。Therefore, the second object of the present invention is to automatically change the direction of the light flux captured by the autofocus optical system for peripheral distance measurement to the direction of the exit pupil of the photographic lens in response to the attachment of the lens mount to the camera body. An object of the present invention is to provide an automatic focus detection device for a camera that can adjust and set the angle as the camera faces.

（課題を解決するための手段） 本発明に係るカメラの自動焦点検出装置の第１の特徴は
、この第１の目的を達成するため、ファインダーの中央
測距ゾーンの左右両側に周辺部測距ゾーンを設け、この
周辺部測距ゾーンと光学的に略共役な位置に周辺部ｗ４
距用のオートフォーカス光学系の測距ゾーンを配置し、
所望の被写体が画面の中央にない撮影写真を得たい場合
に面倒な撮影手順を踏まなくともその周辺部測距用のオ
ートフォーカス光学系を用いて、被写体までの距離を自
動的に測距し、迅速に撮影できるようにしたところにあ
る。(Means for Solving the Problems) The first feature of the automatic focus detection device for a camera according to the present invention is that, in order to achieve the first objective, there are two peripheral distance measuring zones on both left and right sides of the central distance measuring zone of the finder. A zone is provided, and a peripheral area w4 is located at a position optically approximately conjugate with this peripheral ranging zone.
Place the distance measurement zone of the autofocus optical system for distance,
If you want to take a photo where the desired subject is not in the center of the screen, you can automatically measure the distance to the subject using an autofocus optical system that measures the surrounding area without having to go through tedious shooting procedures. , which allows for quick shooting.

本発明の第２の特徴は、第２の目的を達成するため、周
辺部測距用のオートフォーカス光学系の採り込む光束の
向きが撮影レンズの射出瞳の方向に向かうように角度を
自動的に変更するための光学部材を、各オートフォーカ
ス光学系を構成するフォーカスユニットの前面に設けた
ところにある。A second feature of the present invention is that, in order to achieve the second objective, the angle is automatically adjusted so that the direction of the light beam captured by the autofocus optical system for peripheral distance measurement is directed toward the exit pupil of the photographic lens. An optical member for changing to the autofocus optical system is provided on the front surface of the focus unit constituting each autofocus optical system.

本発明の第３の特徴は、その第２の目的を達成するため
の他の構成として、各周辺部測距用のオートフォーカス
光学系及びその測距ゾーンの光軸は、撮影レンズのカメ
ラ本体への装着時に、前記撮影レンズのｔａ筒に設けた
係合部と此の係合部により作動させら九る機械的連動手
段とにより略前記撮影レンズの射出瞳の中心方向を向く
ように構成したところにある。A third feature of the present invention is that, as another configuration for achieving the second object, an autofocus optical system for distance measurement in each peripheral area and an optical axis of the distance measurement zone are arranged in the camera body of the photographing lens. When the photographic lens is attached to the camera, the photographic lens is configured to face substantially in the direction of the center of the exit pupil of the photographic lens by means of an engaging portion provided on the TA barrel of the photographic lens and a mechanical interlocking means operated by the engaging portion. It's right there.

（実施例） 以下に、本発明に係るカメラの自動焦点検出装置の実施
例を図面を参照しつつ説明する。(Example) Hereinafter, an example of an automatic focus detection device for a camera according to the present invention will be described with reference to the drawings.

第１図〜第１４図は本発明に係るカメラの自動焦点検出
装置の第１実施例を説明するためのものである。ここで
は、一眼レフカメラに適用した場合について説明する。1 to 14 are for explaining a first embodiment of an automatic focus detection device for a camera according to the present invention. Here, a case will be described in which the present invention is applied to a single-lens reflex camera.

第１０図はその一眼レフカメラの自動焦点検出装置の光
学系を概念的に示している。この第１０図において、従
来例と同一構成要素については、同一符号が付さ九てい
る。その第１０図において、　１３はオートフォーカス
光学系９の測距ゾーン１２から覗いた撮影レンズ１の射
出ＩＦ（実線で示されている方）である。この射出１１
１１１３は第１２図に示すように略円形である。また、
セパレータレンズ６．７から覗いた開口領域１４．　Ｉ
ｓは略楕円形である。FIG. 10 conceptually shows the optical system of the automatic focus detection device of the single-lens reflex camera. In FIG. 10, the same components as in the conventional example are given the same reference numerals. In FIG. 10, 13 is the exit IF (indicated by a solid line) of the photographic lens 1 seen from the distance measurement zone 12 of the autofocus optical system 9. This injection 11
1113 is approximately circular as shown in FIG. Also,
Opening area 14 seen through separator lens 6.7. I
s is approximately elliptical.

ここでは、オートフォーカス光学系９の左右両側に、周
辺部測距用のオートフォーカス光学系１ｇ。Here, autofocus optical systems 1g for peripheral distance measurement are provided on both left and right sides of the autofocus optical system 9.

１９が設けられている。オートフォーカス光学系１８は
、たとえば、一対の像分割光学素子としてのセパレータ
レンズ２０．２１とＣＣＤ２２とから概略構成されてい
る。また。オートフォーカス光学系１９は一対の像分割
光学素子としてのセパレータレンズ２３．２４とＣＣＤ
２５とから概略構成されている。19 are provided. The autofocus optical system 18 is generally composed of, for example, a separator lens 20.21 as a pair of image splitting optical elements and a CCD 22. Also. The autofocus optical system 19 includes separator lenses 23 and 24 as a pair of image splitting optical elements and a CCD.
It is roughly composed of 25.

カメラ本体Ａに設けられたファインダー１６には、第１
１図に示すように、その周辺部測距用のオートフォーカ
ス光学系１８．１９に対応させて、その中央測距ゾーン
１７の左右両側に周辺部測距ゾーン２６．２７が設けら
れている。この周辺部測距ゾーン２６．２７はオートフ
ォーカス光学、ｌｔｌＬ　１９の′ａ距ゾーン２８、２
９と光学的に略共役な位Ｉ！関係にあるものとされてい
る。The finder 16 provided on the camera body A has a first
As shown in FIG. 1, peripheral distance measurement zones 26 and 27 are provided on both left and right sides of the central distance measurement zone 17, corresponding to autofocus optical systems 18 and 19 for peripheral distance measurement. The peripheral distance measuring zones 26 and 27 are autofocus optical, ltlL 19'a distance zones 28 and 2.
I is almost optically conjugate with 9! It is assumed that they are in a relationship.

第１０図において、セパレータレンズ２０．２１．セパ
レータレンズ２３．２４は、それぞれ上下方向に配置さ
れ、図示を略すコンデンサレンズ４を介して撮影レンズ
１の射出瞳１３と光学的に略共役な配置関係とされ、測
距ゾーン２Ｌ　２９を介してその射出［１１３の上下方
向の開口領域３０．３１を覗いている。In FIG. 10, separator lenses 20, 21. The separator lenses 23 and 24 are arranged vertically, respectively, and have an optically approximately conjugate arrangement relationship with the exit pupil 13 of the photographing lens 1 via the condenser lens 4 (not shown), and are arranged in a substantially conjugate optically with the exit pupil 13 of the photographic lens 1 via the distance measurement zone 2L 29. The vertical opening area 30.31 of the exit [113] is looked into.

このようにセパレータレンズ２０，２１、セパレータレ
ンズ２３−２４を上下方向に配置したのは、撮影レンズ
１を介して測距ゾーン２８．２９に入射する光束は、＃
光束となり、ｗ４距ゾーン２８．２９から見た撮影レン
ズ１の射出瞳１３はビネッティングを受けて第１３ｒｊ
４に示すように偏平につぶれた形状となっており、水平
方向に開口領域３０．３１を設けると、セパレータレン
ズ２０．２１（セパレータレンズ２３，２４）のレンズ
間の基線長を十分に確保することができず、ひいてはー
レンズの性能に低下を来たして像間隔の検出精度が劣化
するからである。The reason why the separator lenses 20, 21 and the separator lenses 23-24 are arranged vertically in this way is that the light flux that enters the distance measurement zone 28, 29 through the photographing lens 1 is #
The exit pupil 13 of the photographic lens 1 seen from the w4 distance zone 28 and 29 undergoes vignetting and becomes the 13th rj
As shown in 4, it has a flattened shape, and if an opening area 30.31 is provided in the horizontal direction, a sufficient baseline length between the separator lenses 20.21 (separator lenses 23, 24) can be secured. This is because the performance of the lens is deteriorated and the accuracy of detecting the image interval is deteriorated.

なお、その第１０図において、ａは撮影レンズ１の光軸
、悲、はオートフォーカス光学系１８の中心光軸、悲、
はオートフォーカス光学系１９の中心光軸であり、中心
光軸ａいａ２は射出瞳１３の中心０１で交すっている。In FIG. 10, a is the optical axis of the photographic lens 1, 1 is the central optical axis of the autofocus optical system 18, and 1 is the central optical axis of the autofocus optical system 18.
is the central optical axis of the autofocus optical system 19, and the central optical axes a and a2 intersect at the center 01 of the exit pupil 13.

また、”１１はセパレータレンズ２０の光軸、ａ工、は
セパレータレンズ２１の光軸。Further, ``11'' is the optical axis of the separator lens 20, and ``a'' is the optical axis of the separator lens 21.

Ｑ７□はセパレータレンズ２３の光軸、患、２はセパレ
ータレンズ２４の光軸であり、光軸悲、１、［１は開口
領域３１の中心０２で交わっており、光軸Ｑ１２、”２
７は開口領域３０の中心０３で交わっている。Q7□ is the optical axis of the separator lens 23;
7 intersect at the center 03 of the opening area 30.

このように周辺部測距用ゾーン２６．２７をファインダ
ー１６の中央測距ゾーン１７の左右両側に設け、その周
辺部測距ゾーンに対応させて周辺部測距用のオートフォ
ーカス光学系１８．１９を設けて、選択したい測距ゾー
ン１７．２６．２７（第１１図参照）に対応するＣＣＤ
８，２２．２５を駆動させると、その選択した測距ゾー
ン１７．２６．２７に対応するオートフォーカス光学系
９．１８．１９によって被写体２の測距を自動的に行な
うことが可能である。In this way, the peripheral distance measurement zones 26 and 27 are provided on both the left and right sides of the central distance measurement zone 17 of the finder 16, and the autofocus optical systems 18 and 19 for peripheral distance measurement are provided in correspondence with the peripheral distance measurement zones 26 and 27. 17.26.27 (see Figure 11).
8, 22, 25, it is possible to automatically measure the distance of the subject 2 using the autofocus optical system 9, 18, 19 corresponding to the selected distance measurement zone 17, 26, 27.

ところで、カメラ本体Ａには、第１図に示すように、一
般に、交換可能のレンズマウントＢが着脱可能とされて
いる。ここで、そのレンズマウントＢに搭載されている
撮影レンズ１が第９図に示すように長焦点レンズ３２で
ある場合と第８図に示すように短焦点レンズ３３である
場合とについて考える。By the way, as shown in FIG. 1, a replaceable lens mount B is generally removably attached to the camera body A. Here, a case will be considered in which the photographic lens 1 mounted on the lens mount B is a long focal length lens 32 as shown in FIG. 9, and a case in which it is a short focal length lens 33 as shown in FIG.

この場合、周辺部測距用のオートフォーカス光学系１８
．１９の光軸悲いＱ２はその撮影レンズ１の光軸Ｑとな
す角度０が一般には異なり、第１４図に示すように、長
焦点レンズ３２からなる撮影レンズ１の射出１１ｉｆｆ
３４の開［１領域３５．３８をオートフォーカス光学系
１８のセパレータレンズ２０．２１に覗かせ。In this case, the autofocus optical system 18 for peripheral distance measurement
．． The optical axis Q2 of 19 generally differs in the angle 0 formed with the optical axis Q of the photographing lens 1, and as shown in FIG.
34 opening [1 area 35.38 is looked into the separator lens 20.21 of the autofocus optical system 18.

射出１１ｉｉｆ３４の開口領域３６．３７をオートフォ
ーカス光学系１９のセパレータレンズ２３．２４に覗か
せたときのビネッティングの影響を考慮し、撮影レンズ
１が短焦点レンズ３３．長焦点レンズ３２のいずれかで
あるかによってセパレータレンズ２（Ｌ　２１．２３．
２４が撮影レンズ１の射出１１１３．３４を覗く角度を
変更し、撮影レンズ１の光軸ａとオートフォーカス光学
系１８．１９の光軸ｍ１．１．とを異ならせる構成とし
なければならない、なお、その第１４図において、３Ｌ
　４０はセパレータレンズ６．７から覗いた射出１ｉｉ
ｆ３４の開口領域である。Considering the influence of vignetting when the aperture area 36.37 of the exit lens 11iif34 is viewed through the separator lens 23.24 of the autofocus optical system 19, the photographing lens 1 is configured as a short focus lens 33. The separator lens 2 (L 21.23.
24 changes the angle at which the exit 1113.34 of the photographic lens 1 is viewed, and the optical axis a of the photographic lens 1 and the optical axis m1.1 of the autofocus optical system 18.19 are changed. In addition, in Fig. 14, 3L
40 is the injection 1ii seen from the separator lens 6.7
This is the opening area of f34.

そこで、第１図に示すように、カメラ本体Ａ内に組み込
まれて各オートフォーカス光学系９．１８．１９を構成
するフォーカスユニット５０の前面に、周辺部測距用の
オートフォーカス光学系１８．１９のセパレータレンズ
２０．２１．２３．２４が撮影レンズ１を覗く角度を変
更するための光学部材５１が設けられている。いいかえ
れば、オートフォーカス光学系１８−１９の採り込む光
束の向きが撮影レンズ１の射出瞳の方向に向かうように
角度を変更するための角度変更手段としての光学部材５
１が設けられている。この光学部材５１は、第２図、第
４図に示すように、光透過性回転盤により構成れている
。この光学部材５１は、たとえば、プラスチックス材料
を用いて一体成形により製作される。Therefore, as shown in FIG. 1, a peripheral distance measuring autofocus optical system 18. An optical member 51 is provided for changing the angle at which the 19 separator lenses 20, 21, 23, and 24 look into the photographic lens 1. In other words, the optical member 5 serves as an angle changing means for changing the angle so that the direction of the light beam captured by the autofocus optical system 18-19 is directed toward the exit pupil of the photographic lens 1.
1 is provided. As shown in FIGS. 2 and 4, this optical member 51 is composed of a light-transmitting rotary disk. This optical member 51 is manufactured, for example, by integral molding using a plastic material.

光学部材５１は、オートフォーカス光学系９に臨む中央
等厚透明部５２と、その中央等厚透明部５２の周辺に輪
状に形成されたプリズム部５３とからなっている。その
プリズム部５３には、第５図〜第７図に示すように等厚
透明部５４．５４と、プリズム５５．．５５．５６，５
６とが設けられている。このプリズム５Ｋ、５５．５６
．５６は、光学部材５１の内径側に対して外形側が肉厚
となっている。ここでープリズム５５．５６の偵角αは
第５図、第７図に示すように互いに異なるものとされて
いる。プリズム部５３の機能については後述することに
し、次に、この光学部材５１を支持する回転部材５７に
ついて説明する。The optical member 51 includes a central transparent portion 52 of equal thickness facing the autofocus optical system 9 and a prism portion 53 formed in a ring shape around the central transparent portion 52 of equal thickness. As shown in FIGS. 5 to 7, the prism portion 53 includes transparent portions 54.54 of equal thickness and prisms 55.54. ．． 55.56,5
6 is provided. This prism 5K, 55.56
．． 56 is thicker on the outer diameter side than on the inner diameter side of the optical member 51. Here, the reconnaissance angles α of the prisms 55 and 56 are different from each other as shown in FIGS. 5 and 7. The function of the prism portion 53 will be described later, and next, the rotating member 57 that supports the optical member 51 will be described.

回転部材５７は、ここでは、第２図に示すように、４個
のローラ５８．５８．５８．５８により回転可能に支承
されている。回転部材５７には第３図に示すようにその
ローラ５８．５８．５８．５８を案内する案内溝５９が
外周に形成されている。なお、ローラ５８．５８．５８
−５８はこの実施例では支軸５９′に回転可能に軸支さ
れるもので、支軸５９′は、たとえば、遮光板６０に取
付けられ、　６１はその遮光板Ｇｏに穿設された開口で
ある。The rotating member 57 is here rotatably supported by four rollers 58, 58, 58, 58, as shown in FIG. As shown in FIG. 3, the rotating member 57 has guide grooves 59 formed on its outer periphery for guiding the rollers 58, 58, 58, 58. In addition, roller 58.58.58
In this embodiment, -58 is rotatably supported by a support shaft 59', and the support shaft 59' is attached to, for example, a light-shielding plate 60, and 61 is an opening formed in the light-shielding plate Go. be.

回転部材５７は、モータ６２によって回転駆動されるも
ので、回転部材５７の外周部には、モータ６２の出力軸
６３に取付けられた歯車６４と噛合する歯車部６５が設
けられている。モータ６２は、モータ駆動回路６６によ
って駆動されるもので、モータ駆動回路６６はマイクロ
プロセッサ６７の指令に基づいて制御される。マイクロ
プロセッサ６７は交換レンズマウントＢに設けられてい
るレンズＲＯＭ６ｇの情報を受けてモータ駆動回路６６
を制御する。なお、第１図において、６９はレンズマウ
ントＢに設けられた接続ビン、７Ｇはカメラ本体Ａに設
けら九た接続端子、第４図において、７１は開口を示す
。The rotating member 57 is rotationally driven by a motor 62, and a gear portion 65 that meshes with a gear 64 attached to an output shaft 63 of the motor 62 is provided on the outer periphery of the rotating member 57. The motor 62 is driven by a motor drive circuit 66, which is controlled based on instructions from a microprocessor 67. The microprocessor 67 receives information from the lens ROM 6g provided in the interchangeable lens mount B and operates the motor drive circuit 66.
control. In FIG. 1, 69 is a connection bin provided on the lens mount B, 7G is a connection terminal provided on the camera body A, and in FIG. 4, 71 is an opening.

マイクロプロセッサ６７は、この実施例では、短焦点レ
ンズ３３を有するレンズマウントＢがカメラ本体Ａに装
着されたときには、第８図に示すように、等厚透明部５
４が測距ゾーン２８．２９に臨むようにモータ６２を駆
動制御し、長焦点レンズ３２を有するレンズマウントＢ
がカメラ本体Ａに装着されたときには、第９図に示すよ
うに、プリズム５６が測距ゾーン２８．２９に臨むよう
にモータ６２を駆動制御してその位置で回転部材５７の
回転を停止させる。In this embodiment, when the lens mount B having the short focus lens 33 is attached to the camera body A, the microprocessor 67 is configured to move the transparent portion 5 of equal thickness as shown in FIG.
The motor 62 is driven and controlled so that the lens 4 faces the distance measurement zone 28, 29, and the lens mount B has a long focal length lens 32.
When mounted on the camera body A, as shown in FIG. 9, the motor 62 is driven and controlled so that the prism 56 faces the distance measurement zone 28, 29, and the rotation of the rotating member 57 is stopped at that position.

これによって、周辺部測距用のオートフォーカス光学系
１８．１９のセパレータレンズ２０．２１．２３゜２４
が撮影レンズ１の射出瞳を覗く角度が自動的に変更され
る。As a result, the separator lens 20, 21, 23° 24 of the autofocus optical system 18, 19 for peripheral distance measurement
The angle at which the user looks into the exit pupil of the photographic lens 1 is automatically changed.

すなわち、たとえば、短焦点レンズ３３を有するレンズ
マウントＢをカメラ本体Ａから取り外して長焦点レンズ
３２を有するレンズマウントＢをカメラ本体Ａに装着す
ると、光学部材５１が仮想中心Ｚ（第２図参照）を中心
に回転されて、プリズム５６が測距ゾーン２８．２９に
臨む位置で停止される。これによって、セパレータレン
ズ２Ｇ−２１，２３，２４が撮影レンズ１の射出瞳を覗
く角度が自動的に０から０′に変更される。なお、プリ
ズム５５を測距ゾーン２８．２９に臨ませると、セパレ
ータレンズ２Ｇ、　２１゜２３、２４が撮影レンズ１の
射出瞳を覗く角度が０゜０′以外の角度に変更され、他
の焦点を有する撮影レンズに適合させることができる。That is, for example, when the lens mount B having the short focal length lens 33 is removed from the camera body A and the lens mount B having the long focal length lens 32 is attached to the camera body A, the optical member 51 is moved to the virtual center Z (see FIG. 2). The prism 56 is rotated around , and stopped at a position facing the distance measurement zones 28 and 29. As a result, the angle at which the separator lenses 2G-21, 23, and 24 look into the exit pupil of the photographic lens 1 is automatically changed from 0 to 0'. Note that when the prism 55 faces the distance measurement zone 28, 29, the angle at which the separator lenses 2G, 21° 23, and 24 look into the exit pupil of the photographing lens 1 is changed to an angle other than 0°0', and other focal points are It can be adapted to a photographic lens with

以上、第１実施例においては、マイクロプロセッサ６７
がレンズマウントＢに設けられたレンズＲＯＭ６ｇの情
報を受けてモータ６２を駆動制御する構成として説明し
たが、レンズＲＯＭ６ｇの情報がない場合でも、レンズ
マウントＢのカメラ本体Ａへの装着と同時にマイクロプ
ロセッサ６７により回転部材５７を連続回転させて、Ｃ
ＣＤ２２−２５の受光量が最大となる回転位置をそのマ
イクロプロセッサ６７により検出し、その回転位置で回
転部材５７の回転を停止させ、セパレータレンズ２０−
２１．２３．２４が撮影レンズ１の射出瞳を覗く角度を
自動的に０から０′に変更する構成とすることもできる
。As described above, in the first embodiment, the microprocessor 67
has been described as a configuration in which the motor 62 is driven and controlled by receiving information from the lens ROM 6g provided in the lens mount B, but even if there is no information about the lens ROM 6g, the microprocessor 62 is activated at the same time as the lens mount B is attached to the camera body A. 67, the rotating member 57 is continuously rotated, and C
The microprocessor 67 detects the rotational position where the amount of light received by the CD 22-25 is maximum, stops the rotation of the rotating member 57 at that rotational position, and the separator lens 20-
It is also possible to adopt a configuration in which the angle at which the lenses 21, 23, and 24 look into the exit pupil of the photographing lens 1 is automatically changed from 0 to 0'.

次に、第１５図〜第１７図を参照しつつ本発明に係るカ
メラの自動焦点検出装置の第２実施例を説明する。Next, a second embodiment of the automatic focus detection device for a camera according to the present invention will be described with reference to FIGS. 15 to 17.

この第２実施例は、角度変更手段の他の例を示し、機械
的手段によって撮影レンズ１の光軸慮とオートフォーカ
ス光学系１８．１９の光軸ｉ、、ａ、との為す角０を異
ならせる（変更させる）構成としたものであり、第１５
図において、カメラ本体Ａの所定位置には保持ケース１
４２が固定され、保持ケース１４２の両側には保持ケー
ス１４３．１４４が配置されていて、この保持ケース１
４２内には上述のオートフォーカス光学系９が収納され
、保持ケース１４３゜１４４内にはユニット化されたオ
ートフォーカス光学系１８．１９がそれぞれ収納されて
いる。This second embodiment shows another example of the angle changing means, in which the angle 0 between the optical axis of the photographic lens 1 and the optical axis i, , a of the autofocus optical system 18.19 is changed by mechanical means. The structure is different (changed), and the 15th
In the figure, a holding case 1 is placed at a predetermined position on the camera body A.
42 is fixed, and holding cases 143 and 144 are arranged on both sides of the holding case 142.
The above-mentioned autofocus optical system 9 is housed in 42, and unitized autofocus optical systems 18 and 19 are housed in holding cases 143 and 144, respectively.

角度変更手段は光軸角度自動変更手段１４１により構成
され、光軸角度自動変更手段１４１は、保持ケース１４
３の図中上下面に同軸に固定した一対の支軸１４５，１
４６と、保持ケース１４４の図中上下に同軸に固定した
一対の支軸１４７，１４８を有する。この支軸１４５，
１４６及び１４７．１４８は、カメラ本体Ａの図示を略
す支持板にフィルム等価面１０と平行に且つ第１５図中
左右動自在に保持されていると共に、軸線回りに回動可
能に設けられている。これにより、保持ケース１４３，
１４４は、保持ケース１４２に対して進退動できると共
に、支軸１４５，１４６及び１４フ、１４８を中心に矢
印１４９，１５０の如く回動できるようになっている。The angle changing means is constituted by an optical axis angle automatic changing means 141, and the optical axis angle automatic changing means 141 is connected to the holding case 14.
In Figure 3, a pair of support shafts 145, 1 are coaxially fixed on the upper and lower surfaces.
46, and a pair of support shafts 147 and 148 coaxially fixed at the top and bottom of the holding case 144 in the drawing. This support shaft 145,
146, 147, and 148 are held on a support plate (not shown) of the camera body A parallel to the film equivalent surface 10 and movable from side to side in FIG. 15, and are also rotatable about an axis. . As a result, the holding case 143,
144 can move forward and backward with respect to the holding case 142, and can also rotate around support shafts 145, 146 and 14f, 148 as indicated by arrows 149, 150.

しかも、光軸角度自動変更手段１４１は、撮影レンズの
レンズマウントＢをカメラ本体Ａに装着したときに、撮
影レンズ１のレンズマウントＢに設けた係合孔（係合部
）１５２に係合して、支軸１４６．１４８を撮影レンズ
１の焦点距離に応じて回動させ、周辺部測距用のオート
フォーカス光学系１ｇ、　１９及びその測距ゾーン２８
．２９の光軸ｆｉ、、ｆｉｚを撮影レンズ１の射出瞳の
中心に向けさせる機械的駆動手段１５３（機械的連動手
段）が設けられている。Furthermore, the automatic optical axis angle changing means 141 engages with the engagement hole (engaging portion) 152 provided in the lens mount B of the photographic lens 1 when the lens mount B of the photographic lens is mounted on the camera body A. Then, the support shafts 146 and 148 are rotated according to the focal length of the photographic lens 1, and the autofocus optical system 1g, 19 and its distance measurement zone 28 for peripheral distance measurement are rotated.
．． A mechanical drive means 153 (mechanical interlocking means) is provided for directing the optical axes fi, .

この機械的駆動手段１５３は、支軸１４６．１４８の下
端部に一端部が固定されたリンク１５４，１５５と、リ
ンク１５４，１５５の他端部同士を回動自在に連結して
いる支軸１５６を有する。この支軸１５６は、光軸悲と
軸線が直交させられていると共に、矢印１５６ａの方向
すなわち光軸２方向に進退勤自在にカメラ本体外に保持
されている。また、機械的駆動手段１５３は、支軸１５
６に一端部が回動自在に保持された駆動リンク１５７と
、駆動リンク１５７の他端部に突設され且つカメラ本体
外のレンズマウント部Ｂから外方に突出させられた係合
ピン１５８と、駆動リンク１５７を支軸１５６側とは反
対方向すなわち係合ビン１５ｇがカメラ本体外のレンズ
マウント部Ｂから外方に突出する方向に付勢しているバ
ネ１５９を有する。This mechanical drive means 153 includes links 154 and 155 whose one ends are fixed to the lower ends of support shafts 146 and 148, and a support shaft 156 which rotatably connects the other ends of the links 154 and 155. has. This support shaft 156 has an axis perpendicular to the optical axis, and is held outside the camera body so as to be movable forward and backward in the direction of the arrow 156a, that is, in the two directions of the optical axis. Further, the mechanical drive means 153 includes the support shaft 15
6, a drive link 157 whose one end is rotatably held; and an engagement pin 158 which is protruded from the other end of the drive link 157 and which is made to protrude outward from the lens mount section B outside the camera body. , has a spring 159 that biases the drive link 157 in the opposite direction to the support shaft 156 side, that is, in the direction in which the engagement pin 15g projects outward from the lens mount portion B outside the camera body.

この係合ピン１５８は−ｍ影レンズ１のレンズマウント
Ｂをカメラ本体外に装着したときに、係合孔１５２に挿
入させられて、その先端が係合孔１５２の底部にバネ１
５９で当接させられる様になっている。This engaging pin 158 is inserted into the engaging hole 152 when the lens mount B of the -m shadow lens 1 is mounted outside the camera body, and its tip is attached to the bottom of the engaging hole 152 by the spring 1.
59 so that they can be brought into contact.

しかも、この係合ビン１５Ｂは光輔悲と平行に進退動す
る様に設けられている。また、この係合ピン１５８が係
合する係合孔（係合部）１５２の深さＤは、撮影レンズ
ｌの焦点距離が短いほど浅く設定されていると共に、撮
影レンズ１のレンズマウントＢをカメラ本体外に装着し
て係合ピン１５８を係合孔１５２に挿入したときに５機
械的駆動手段１５３を介して周辺部測距用のオートフォ
ーカス光学系１ｇ、１９及びその測距ゾーン２ｇ、２９
の光軸ｉ１．ｇ、を撮影レンズ１の射出瞳の中心に向け
させる深さに設定されている。第１６図（イ）は撮影レ
ンズ１が長焦点の場合の係合孔１５２の深さＤの一例を
示し、第１６図（ロ）は撮影レンズ１が短焦点の場合の
係合孔１５２の深さＤの一例を示したものである。Moreover, this engagement pin 15B is provided so as to move forward and backward parallel to the light beam. Further, the depth D of the engagement hole (engagement portion) 152 with which this engagement pin 158 engages is set to be shallower as the focal length of the photographic lens 1 becomes shorter, and When attached to the outside of the camera body and the engagement pin 158 is inserted into the engagement hole 152, the autofocus optical system 1g, 19 and its distance measurement zone 2g are used for distance measurement in the peripheral area via the mechanical drive means 153; 29
The optical axis i1. g is set to a depth that directs the lens to the center of the exit pupil of the photographic lens 1. FIG. 16(a) shows an example of the depth D of the engaging hole 152 when the photographing lens 1 has a long focal length, and FIG. 16(b) shows an example of the depth D of the engaging hole 152 when the photographing lens 1 has a short focal length. An example of the depth D is shown.

従って、撮影レンズのレンズマウントＢをカメラ本体外
に装着すると、係合ピン１５８が係合孔１５２に係合し
て、係合ビン１５ｇのカメラ本体外への突出量は係合孔
１５２により撮影レンズ１の焦点距離に応じて変化させ
られ、この駆動リンク１５７が光軸２方向に進退動させ
られる。これにより、リンク１５４，１５５が支軸１４
６．１４８の軸線回りに回動させられて、保持ケース１
４３．１４４が支軸１４６，１４８回りに回動させられ
ると共に、支軸１４６．１４８が相対接近又は相対踵反
させられて、保持ケース１４３，１４４の回動端部すな
りち測距ゾーン２８．２９が設けられた側が接近離反さ
せられて、周辺部測距用のオートフォーカス光学系１ｇ
、　１９及びその測距ゾーン２８゜２９の光軸ｆｉ、、
ｆｉ、を撮影レンズの射出瞳の中心に自動的に向けられ
る。Therefore, when the lens mount B of the photographic lens is mounted outside the camera body, the engagement pin 158 engages with the engagement hole 152, and the amount of protrusion of the engagement bottle 15g outside the camera body is determined by the engagement hole 152. It is changed according to the focal length of the lens 1, and this drive link 157 is moved forward and backward in the direction of the optical axis 2. As a result, the links 154 and 155 are connected to the support shaft 14.
6. The holding case 1 is rotated about the axis of 148.
43 and 144 are rotated around the support shafts 146 and 148, and the support shafts 146 and 148 are moved relatively toward each other or relatively retracted so that the rotation ends of the holding cases 143 and 144 form the distance measurement zone 28. The side where .29 is provided is moved closer and farther away, and the autofocus optical system 1g for peripheral distance measurement is installed.
, 19 and the optical axis fi of its ranging zone 28°29, .
fi, is automatically directed to the center of the exit pupil of the photographic lens.

見匪血洟果 本発明に係るカメラの自動焦点検出装置は、以上説明し
たように、カメラ本体に設けられたファインダーの中央
測距ゾーンと光学的に略共役なカメラ本体内の位置にオ
ートフォーカス光学系の測距ゾーンを配置すると共に、
そのファインダーの中央測距ゾーンの周辺部に測距ゾー
ンを設け、この周辺部測距ゾーンと光学的に略共役なカ
メラ本体内の位置に周辺部測距用のオートフォーカス光
学系の測距ゾーンを配置したので、所望の被写体が画面
の中央にない撮影写真を得たい場合に面倒な撮影手順を
踏まなくとも迅速に撮影できるという効果を奏する。ま
た。このように構成した場合に、レンズのカメラ本体へ
の装着に応じて自動的に周辺部測距用のオートフォーカ
ス光学系の採り込む光束の向きが撮影レンズの射出瞳の
方向に向かうように調整・設定を行なうことができよう
にしであるから、ビネッティングの影響を自動的に除去
できるという効果も奏する６As explained above, the automatic focus detection device for a camera according to the present invention autofocuses on a position within the camera body that is optically approximately conjugate with the central ranging zone of the finder provided in the camera body. In addition to arranging the ranging zone of the optical system,
A distance measurement zone is provided at the periphery of the central distance measurement zone of the finder, and the distance measurement zone of the autofocus optical system for peripheral distance measurement is located at a position within the camera body that is optically approximately conjugate with this peripheral distance measurement zone. Because of this arrangement, when it is desired to obtain a photograph in which the desired subject is not in the center of the screen, the photograph can be taken quickly without going through a troublesome photographing procedure. Also. In this configuration, when the lens is attached to the camera body, the direction of the light beam captured by the autofocus optical system for peripheral distance measurement is automatically adjusted so that it is directed toward the exit pupil of the photographic lens.・Because the settings can be made, it also has the effect of automatically removing the effects of vignetting6.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係るカメラの全体構成を示す概略図、
第２図は第１図に示す回転部材と光学部材を拡大して示
す平面図、第３図はその回転部材を拡大して示す側面図
、第４図は第３図に−示す回転部材の縦断面図、第５図
〜第７図は第２図に示すプリズム部の形状を説明するた
めの断面図、第８１４、第９図は本発明に係る一眼レフ
カメラの自動焦点検出装置の第１実施例の作用を説明す
るための説明図、第１Ｏ図は本発明に係るカメラの自動
焦点検出装置のオートフォーカス光学系の配置状態を模
式的に示す斜視図、第１１図はその自動焦点検出装置の
ファインダーの平面図、第１２図はそのカメラの撮影レ
ンズをファインダーの中央測距ゾーンと光学的に略共役
なオートフォーカス光学系の測距ゾーンから覗いた射出
瞳と開口領域との関係を説明するための説明図、第１３
図は第１０図に示す射出瞳がビネッティングを受けた場
合にその射出瞳と開口領域との関係を説明するための説
明図。 第１４図は短焦点レンズと長焦点レンズとの関係を説明
するための模式図、第１５図は本発明に係るカメラの自
動焦点検出装置の第２実施例を説明するための説明図で
あって光軸角自動変更手段の概略説明図、第１６図は第
１５図に示す係合孔と係合ピンとの関係を示す説明図、
第１７図はその撮影レンズが長焦点レンズであるか短焦
点レンズであるかによって周辺部測距用のオートフォー
カス光学系の中心光軸と撮影レンズの光軸とが変化する
様子を説明するための図、第１８図は従来のカメラの自
動焦点検出装置の光学系の模式図、第１９図は第１８図
に示すオートフォーカス光学系の配置状態を概略的に示
す斜視図、第２０図はその自動焦点検出装置による合焦
を説明するための説明図、第２１図はその自動焦点検出
装置のＣＣＯの検出出力の説明図。 第２２図は従来の測距ゾーンのファインダーへの配置状
態を説明するための説明図、第２３図はその従来の自動
焦点検出装置を用いて所望の被写体が中央から左右にず
れた撮影写真を得る場合の撮影手順を説明するための説
明図である。 ■−・・撮影レンズ、　　　　　２・・・被写体９・・
−オートフォーカス光学系 １３・・・射出隨、　　　　　　　　１６・−・ファイ
ンダー１７・・・中央測距ゾーン １８、１９・・・周辺部測距用のオートフォーカス光学
系２６、２７・・・周辺部測距ゾーン、２８．２９・−
・測距ゾーン３２・・・長焦点レンズ、　　　　３３・
・−短焦点レンズ３４・・−長焦点レンズの射出瞳、 ５０−・フォーカスユニット、　　５１・・・光学部材
５２・−・中央等厚透明部、５３・・・プリズム部５７
・一回転部材、−６２・・￥モータ６フー・・マイクロ
プロセッサ、６８・・・レンズＲＯＮＡ・・・カメラ本
体、　　　　　　Ｂ・・・レンズマウント１５２・・・
係合孔（係合部） １５３・−・機械的駆動手段（機械的連動手段）１５ｇ
・・・係合ピン 第１図 ｒｌ−：ど 第２図 第３図 −°１１ 第４図 ζ１ ）　　八　　　　　）　　　　　　　　）　　　＼α第
８図 第１１図 １′１ｒ人　　！ Ｖソ 〜ハ！ 第１５図 第１６図 第１８　因 第１９図FIG. 1 is a schematic diagram showing the overall configuration of a camera according to the present invention;
2 is an enlarged plan view of the rotating member and optical member shown in FIG. 1, FIG. 3 is an enlarged side view of the rotating member, and FIG. 4 is an enlarged view of the rotating member shown in FIG. 814 and 9 are longitudinal sectional views, and FIGS. 5 to 7 are sectional views for explaining the shape of the prism portion shown in FIG. 2, and FIGS. An explanatory diagram for explaining the operation of the first embodiment, FIG. 1O is a perspective view schematically showing the arrangement state of the autofocus optical system of the autofocus detection device for a camera according to the present invention, and FIG. 11 is the autofocusing diagram. A plan view of the finder of the detection device, Figure 12 shows the relationship between the exit pupil and the aperture area when looking through the camera's photographing lens from the distance measurement zone of the autofocus optical system, which is optically approximately conjugate with the central distance measurement zone of the finder. Explanatory diagram for explaining, 13th
FIG. 10 is an explanatory diagram for explaining the relationship between the exit pupil and the aperture area when the exit pupil shown in FIG. 10 is subjected to vignetting. FIG. 14 is a schematic diagram for explaining the relationship between a short focus lens and a long focal length lens, and FIG. 15 is an explanatory diagram for explaining a second embodiment of the automatic focus detection device for a camera according to the present invention. FIG. 16 is an explanatory diagram showing the relationship between the engagement hole and the engagement pin shown in FIG. 15;
Figure 17 is for explaining how the central optical axis of the autofocus optical system for peripheral distance measurement and the optical axis of the photographing lens change depending on whether the photographing lens is a long focal length lens or a short focal length lens. , FIG. 18 is a schematic diagram of an optical system of an automatic focus detection device of a conventional camera, FIG. 19 is a perspective view schematically showing the arrangement of the autofocus optical system shown in FIG. 18, and FIG. An explanatory diagram for explaining focusing by the automatic focus detection device, and FIG. 21 is an explanatory diagram of the detection output of the CCO of the automatic focus detection device. Figure 22 is an explanatory diagram for explaining the arrangement of conventional distance measurement zones on the finder, and Figure 23 is an explanatory diagram for explaining the arrangement of conventional distance measurement zones on the finder. FIG. ■--Photographing lens, 2...Subject 9...
- Autofocus optical system 13... exit door, 16... finder 17... central distance measurement zone 18, 19... autofocus optical system for peripheral distance measurement 26, 27... peripheral measurement Distance zone, 28.29・-
・Distance measurement zone 32...Long focus lens, 33・
- Short focus lens 34 - Exit pupil of long focus lens, 50 - Focus unit, 51 - Optical member 52 - Central transparent part with equal thickness, 53 - Prism part 57
・One rotation member, -62...\Motor 6...Microprocessor, 68...Lens RONA...Camera body, B...Lens mount 152...
Engagement hole (engagement part) 153 --- Mechanical drive means (mechanical interlocking means) 15g
...Engaging pin Fig. 1 rl-:D Fig. 2 Fig. 3-°11 Fig. 4 ζ1) 8)) \α Fig. 8 Fig. 11 Fig. 1'1r person! V so~ha! Figure 15 Figure 16 Figure 18 Cause Figure 19

Claims (6)

【特許請求の範囲】[Claims] （１）カメラ本体のファインダーの中央に中央ゾーンが
設けられ、前記ファインダーに少なくとも２個の周辺ゾ
ーンが設けられ、その２個の周辺ゾーンの一方は前記中
央ゾーンの右に位置し、他方は左に位置し、前記カメラ
本体には中央のオートフォーカス光学系と周辺のオート
フォーカス光学系とが設けられ、前記中央のオートフォ
ーカス光学系は前記中央のゾーンに略共役なゾーンを有
し、前記２個の周辺のオートフォーカス光学系は前記周
辺のゾーンに略共役なゾーンを有し、前記カメラ本体に
は撮影レンズが取り付けられ、該撮影レンズの射出瞳が
前記中央のオートフォーカス光学系の中央ゾーンを通し
て覗かれ、少なくとも２つの周辺のオートフォーカス光
学系によって少なくとも２つの開口領域が射出瞳上に定
義され、前記各開口領域の一方は前記射出瞳の中央より
も上側に位置しかつ他方は下側に位置し、前記中央のオ
ートフォーカス光学系と前記各周辺のオートフォーカス
光学系とはそれぞれ少なくとも１個の光電素子をそれぞ
れ有し、各光電素子の出力は前記撮影レンズの自動合焦
に用いられることを特徴とするカメラの自動焦点検出装
置。(1) A central zone is provided at the center of the viewfinder of the camera body, and at least two peripheral zones are provided in the viewfinder, one of the two peripheral zones being located to the right of the central zone and the other to the left. , the camera body is provided with a central autofocus optical system and a peripheral autofocus optical system, the central autofocus optical system has a zone substantially conjugate to the central zone, and the two The peripheral autofocus optical system has a zone that is substantially conjugate to the peripheral zone, and a photographing lens is attached to the camera body, and the exit pupil of the photographic lens is in the central zone of the central autofocus optical system. at least two aperture regions are defined on the exit pupil by at least two peripheral autofocus optics, one of each aperture region being located above and the other below the center of the exit pupil; The central autofocus optical system and the peripheral autofocus optical systems each have at least one photoelectric element, and the output of each photoelectric element is used for automatic focusing of the photographic lens. An automatic focus detection device for a camera characterized by: （２）前記周辺部測距用のオートフォーカス光学系の採
り込む光束の向きが前記撮影レンズの射出瞳の方向に向
かうように角度を変更するための角度変更手段が設けら
れていることを特徴とする請求項１記載のカメラの自動
焦点検出装置。(2) An angle changing means is provided for changing the angle so that the direction of the light beam captured by the autofocus optical system for distance measuring the peripheral area is directed toward the exit pupil of the photographing lens. An automatic focus detection device for a camera according to claim 1. （３）角度変更手段が各オートフォーカス光学系を構成
するフォーカスユニットの前面に設けられた光透過性回
転盤によって形成されていることを特徴とする請求項２
に記載のカメラの自動焦点検出装置。(3) Claim 2 characterized in that the angle changing means is formed by a light-transmitting rotary disk provided on the front surface of the focus unit constituting each autofocus optical system.
An automatic focus detection device for the camera described in . （４）角度変更手段が撮影レンズのカメラ本体への装着
時に前記撮影レンズの鏡筒に設けた係合部とこの係合部
により作動させられる機械的連動手段によって構成され
ていることを特徴とする請求項２に記載のカメラの自動
焦点検出装置。(4) The angle changing means is comprised of an engaging part provided on the barrel of the taking lens when the taking lens is attached to the camera body, and a mechanical interlocking means actuated by the engaging part. The automatic focus detection device for a camera according to claim 2. （５）カメラ本体に設けられたファインダーの中央測距
ゾーンと光学的に略共役なカメラ本体内の位置にオート
フォーカス光学系の測距ゾーンを配置すると共に、前記
ファインダーの中央測距ゾーンの周辺部に測距ゾーンを
設け、該周辺部測距ゾーンと光学的に略共役なカメラ本
体内の位置に周辺部測距用のオートフォーカス光学系の
測距ゾーンを配置し、前記各オートフォーカス光学系の
受光素子の出力に基づいて撮影レンズを可動させ、該撮
影レンズの合焦を行なうカメラの自動焦点検出装置であ
って、 前記周辺部測距用のオートフォーカス光学系の採り込む
光束の向きが前記撮影レンズの射出瞳の方向に向かうよ
うに角度を変更するための光学部材が前記各オートフォ
ーカス光学系を構成するフォーカスユニットの前面に設
けられていることを特徴とするカメラの自動焦点検出装
置。(5) The distance measurement zone of the autofocus optical system is arranged at a position within the camera body that is optically approximately conjugate with the central distance measurement zone of the finder provided in the camera body, and the distance measurement zone of the autofocus optical system is arranged around the central distance measurement zone of the finder. A distance measurement zone is provided in the peripheral area distance measurement zone, a distance measurement zone of an autofocus optical system for peripheral area distance measurement is arranged at a position in the camera body that is optically approximately conjugate with the peripheral area distance measurement zone, and each of the autofocus optical systems An automatic focus detection device for a camera that moves a photographic lens based on the output of a light-receiving element of the system and focuses the photographic lens, wherein the direction of the luminous flux captured by the autofocus optical system for peripheral distance measurement is an optical member for changing the angle so that the angle is directed toward the exit pupil of the photographic lens, and an optical member is provided on the front surface of the focus unit constituting each of the autofocus optical systems. Device. （６）カメラ本体のファインダーの中央測距ゾーンと光
学的に略共役な位置にオートフォーカス光学系の測距ゾ
ーンを配置し、該オートフォーカス光学系の受光素子の
出力に基づいて前記カメラ本体に着脱自在に取り付けた
撮影レンズを可動させて、該撮影レンズの合焦を行なう
と共に、前記ファインダーの中央測距ゾーンの左右両側
に周辺部測距ゾーンを設け、該周辺部測距ゾーンと光学
的に略共役な位置に周辺部測距用のオートフォーカス光
学系の測距ゾーンを配置した一眼レフカメラの自動焦点
検出装置であって、 前記両周辺部測距用のオートフォーカス光学系及びその
測距ゾーンの光軸は、前記撮影レンズのカメラ本体への
装着時に、前記撮影レンズの鏡筒に設けた係合部と此の
係合部により作動させられる機械的連動手段とにより略
前記撮影レンズの射出瞳の中心方向を向くように設定さ
れていることを特徴とするカメラの自動焦点検出装置。(6) A distance measurement zone of an autofocus optical system is arranged at a position that is optically approximately conjugate with the center distance measurement zone of the finder of the camera body, and the distance measurement zone of the autofocus optical system is arranged at a position that is optically approximately conjugate with the central distance measurement zone of the finder of the camera body, and A detachably attached photographic lens is moved to focus the photographic lens, and peripheral distance measuring zones are provided on both left and right sides of the central distance measuring zone of the finder, and optical distance measurement zones are provided on both sides of the central distance measuring zone of the finder. An automatic focus detection device for a single-lens reflex camera, in which a distance measurement zone of an autofocus optical system for peripheral distance measurement is arranged at a position substantially conjugate to the autofocus optical system for peripheral distance measurement and its measurement zone. When the photographic lens is attached to the camera body, the optical axis of the focal length zone is approximately connected to the photographic lens by an engaging part provided on the lens barrel of the photographic lens and a mechanical interlocking means operated by this engaging part. An automatic focus detection device for a camera, characterized in that the device is set to face the center of the exit pupil of the camera.
JP63023158A 1987-02-04 1988-02-03 Automatic focus detection device for camera Expired - Fee Related JP2666142B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2256187 1987-02-04
JP29375187 1987-11-20
JP62-306746 1987-12-03
JP30674687 1987-12-03
JP62-22561 1987-12-03
JP62-293751 1987-12-03

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JPH024A true JPH024A (en) 1990-01-05
JP2666142B2 JP2666142B2 (en) 1997-10-22

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63172215A (en) * 1987-01-12 1988-07-15 Minolta Camera Co Ltd Automatic focus detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63172215A (en) * 1987-01-12 1988-07-15 Minolta Camera Co Ltd Automatic focus detector

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LAPS Cancellation because of no payment of annual fees