JPH09211310A - Camera - Google Patents
CameraInfo
- Publication number
- JPH09211310A JPH09211310A JP3547796A JP3547796A JPH09211310A JP H09211310 A JPH09211310 A JP H09211310A JP 3547796 A JP3547796 A JP 3547796A JP 3547796 A JP3547796 A JP 3547796A JP H09211310 A JPH09211310 A JP H09211310A
- Authority
- JP
- Japan
- Prior art keywords
- light
- eyepiece
- eye
- detecting
- line
- 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
- Cameras In General (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
- Viewfinders (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は視線検出手段を有し
たカメラに関し、特に視線検出手段でファインダー視野
内を覗く撮影者の視線方向を検出し、該ファインダー視
野内の注視方向及び注視点を求めると共に該視線検出手
段で得られる信号に基づいて各種の撮影動作、例えば被
写体の複数領域における合焦状態を検出する機能を有し
た焦点検出手段で焦点検出を行うようにした写真用カメ
ラ、ビデオカメラ、ＳＶカメラ等に好適なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having line-of-sight detecting means, and more particularly, the line-of-sight detecting means detects the line-of-sight direction of a photographer looking into the field of view of the finder to obtain a gaze direction and a point of gaze within the field of view of the finder. In addition, various photographing operations based on a signal obtained by the line-of-sight detection means, for example, a photographic camera and a video camera, in which focus detection is performed by focus detection means having a function of detecting in-focus states in a plurality of regions of a subject , SV cameras and the like.
【０００２】[0002]
【従来の技術】従来より、撮影者の視線方向を検知し、
撮影者がファインダー視野内のどの領域（位置）を観察
しているか、所謂撮影者の注視方向をカメラの一部に設
けた視線検出手段で検出し、該視線検出手段からの信号
に基づいて自動焦点調節や自動露出等の各種の撮影機能
を制御するようにしたカメラが種々と提案されている。2. Description of the Related Art Conventionally, the line-of-sight direction of a photographer is detected,
Which area (position) in the viewfinder field the photographer is observing, the so-called gaze direction of the photographer is detected by the line-of-sight detection means provided in a part of the camera, and automatically based on the signal from the line-of-sight detection means. Various cameras have been proposed that control various shooting functions such as focus adjustment and automatic exposure.
【０００３】例えば、特開昭６１−６１１３５号公報で
は、視線検出手段からの出力信号に基づいて焦点検出装
置の測距方向を機械的に制御し、撮影系の焦点状態を調
節するようにしたカメラが提案されている。For example, in Japanese Patent Laid-Open No. 61-61135, the distance measuring direction of the focus detecting device is mechanically controlled based on the output signal from the line-of-sight detecting means to adjust the focus state of the photographing system. A camera is proposed.
【０００４】特開平３−１７１１２２号公報では、一眼
レフカメラのファインダー系の一部に設けた光源手段か
らの赤外光をダイクロイックミラーを用いてファインダ
ー光軸上に導光し、該赤外光をファインダー視野を観察
する撮影者の眼球へ投光し、該眼球の角膜からの赤外反
射光を接眼レンズ、ペンタプリズムの傾斜反射面を介し
てペンタプリズム外に導光して視線検出用のセンサーに
導くように構成して視線情報を検出した視線検出手段を
有したカメラが提案されている。In Japanese Patent Laid-Open No. 3-171122, infrared light from a light source means provided in a part of a viewfinder system of a single-lens reflex camera is guided onto a viewfinder optical axis by using a dichroic mirror, and the infrared light is emitted. Is projected to the eyeball of the photographer who observes the viewfinder field, and infrared reflected light from the cornea of the eyeball is guided to the outside of the pentaprism through the eyepiece lens and the inclined reflection surface of the pentaprism to detect the line of sight. There has been proposed a camera having a visual line detection means configured to guide the sensor to detect visual line information.
【０００５】[0005]
【発明が解決しようとする課題】一眼レフカメラにおい
て撮影系による被写体像が形成されている焦点板（ファ
インダー視野）を覗く観察者の眼球の視線情報を検出す
る視線検出方法として、観察者の眼球からの反射光を接
眼レンズとファインダー像正立用のペンタプリズムの出
射面と傾斜反射面を通過させてペンタプリズム外に射出
させて、その後、受光素子に導光して検出する方法は比
較的簡易な構成で視線情報を得ることができるという特
徴がある。しかしながら、眼球からの反射光をペンタプ
リズムの出射面より導光し、該ペンタプリズムの傾斜反
射面を介して射出させた後に受光素子に導光させて視線
情報を検出する方法は、次のような問題点があった。As an eye-gaze detecting method for detecting eye-gaze information of an eye-ball of an observer who looks into a focusing screen (finder field) in which a subject image is formed by a photographing system in a single-lens reflex camera, The method of detecting the reflected light from the eyepiece and the exit surface of the pentaprism for erecting the viewfinder image and the inclined reflecting surface to let it out of the pentaprism, and then guiding it to the light receiving element for detection is comparatively The feature is that the line-of-sight information can be obtained with a simple configuration. However, the method of detecting the line-of-sight information by guiding the reflected light from the eyeball from the exit surface of the pentaprism, emitting it through the inclined reflecting surface of the pentaprism, and then guiding it to the light receiving element is as follows. There was a problem.
【０００６】（ａ１）ペンタプリズムの傾斜反射面を可
視光反射で赤外光透過のダイクロミラー面とする必要が
ある。その為、ペンタプリズムの反射率向上のためペン
タプリズムのダハ面（ルーフ面）に銀蒸着を施すとき該
傾斜反射面をマスキングしておかなければならない。そ
の後、傾斜反射面にダイクロミラーとしての特性を持つ
ようなコーティングを行う際には、ファインダー視野と
して必要な範囲以外をマスキングする等の複数の作業工
程が必要となり、製造が複雑化してくる。(A1) The inclined reflecting surface of the pentaprism needs to be a dichroic mirror surface that reflects visible light and transmits infrared light. Therefore, in order to improve the reflectance of the pentaprism, the inclined reflecting surface must be masked when silver is deposited on the roof surface (roof surface) of the pentaprism. After that, when coating the inclined reflecting surface with a characteristic as a dichroic mirror, a plurality of working steps such as masking the area other than the area necessary for the finder field are required, and the manufacturing becomes complicated.
【０００７】（ａ２）眼球からの反射光をペンタプリズ
ムの傾斜反射面から取り出すには、その射出角が傾斜反
射面に対して直角でない為、無視できない色収差やコマ
収差が発生してくる。それを防止する為には取り出し用
の別のプリズムが必要になってきて検出光学系が複雑化
してくる。(A2) When the reflected light from the eyeball is taken out from the tilted reflecting surface of the pentaprism, its exit angle is not at right angles to the tilted reflecting surface, so that chromatic aberration and coma that cannot be ignored are generated. In order to prevent this, another prism for taking out becomes necessary, and the detection optical system becomes complicated.
【０００８】本発明はファインダー視野を覗く観察者の
眼を光で照明し、該眼からの反射光をファインダー像正
立用の光学部材の一部を介して受光素子に導光し、該受
光素子で眼情報を検出する際、各要素を適切に構成する
ことにより眼球の情報を装置全体の簡素化を図りつつ、
容易にしかも高精度に検出するカメラの提供を目的とす
る。The present invention illuminates the eyes of an observer looking into the finder field with light, guides the reflected light from the eyes to a light receiving element through a part of an optical member for erecting the finder image, and receives the received light. When detecting eye information with the element, while aiming to simplify the entire apparatus of the eyeball information by appropriately configuring each element,
An object of the present invention is to provide a camera that detects easily and with high accuracy.
【０００９】[0009]
【課題を解決するための手段】本発明の視線検出手段を
有したカメラは、 （１−１）撮影系によって所定面上に形成した被写体像
を中空ルーフミラーと光分割作用のある反射部材とを有
する正立像形成用の光学部材を介して接眼レンズで観察
する際、該接眼レンズを覗く観察者の眼を光源手段から
の光束で照明し、該眼からの反射光を該接眼レンズと該
反射部材を通過させて受光素子で検出し、該受光素子か
らの出力信号を用いて該眼の情報を求める検出手段を設
けたことを特徴としている。A camera having a line-of-sight detecting means of the present invention comprises: (1-1) a hollow roof mirror and a reflecting member having a light splitting function for forming a subject image formed on a predetermined surface by a photographing system. When observing with an eyepiece through an optical member for forming an erect image, the eye of an observer looking through the eyepiece is illuminated with a light beam from a light source means, and reflected light from the eye and the eyepiece are used. It is characterized in that a detecting means for detecting the information of the eye by using the output signal from the light receiving element which is passed through the reflecting member and detected by the light receiving element is provided.
【００１０】特に、（１−１−１）前記反射部材は前記
接眼レンズの光軸に対して傾斜させた傾斜反射面を含む
平行平面板より成っていること、（１−１−２）前記傾
斜反射面は可視光反射で赤外光透過のダイクロイック反
射面であること、（１−１−３）前記光源手段は赤外光
放射の複数の発光ダイオードであり、該複数の発光ダイ
オードは前記接眼レンズの周辺部に設けていること、
（１−１−４）前記検出手段からの情報に基づくファイ
ンダー視野内の所定領域において、前記撮影系の焦点検
出を行う自動焦点検出手段を設けていること等を特徴と
している。In particular, (1-1-1) the reflecting member is composed of a plane parallel plate including an inclined reflecting surface inclined with respect to the optical axis of the eyepiece lens, (1-1-2) The inclined reflection surface is a dichroic reflection surface that reflects visible light and transmits infrared light. (1-1-3) The light source means is a plurality of light emitting diodes that emit infrared light, and the plurality of light emitting diodes are the light emitting diodes. Be provided in the peripheral part of the eyepiece,
(1-1-4) It is characterized in that an automatic focus detection means for detecting the focus of the photographing system is provided in a predetermined area in the viewfinder based on the information from the detection means.
【００１１】（１−２）撮影系によって所定面上に形成
した被写体像を中空ルーフミラーと光分割作用のある反
射部材とを有する正立像形成用の光学部材を介して接眼
レンズで観察する際、該接眼レンズを覗く観察者の眼を
光源手段からの光束で照明し、該眼からの反射光を該接
眼レンズと該反射部材を通過させて受光素子で検出し、
該受光素子からの出力信号を用いて該眼の視線情報を求
める検出手段を設けたことを特徴としている。(1-2) When observing an object image formed on a predetermined surface by a photographing system with an eyepiece through an optical member for forming an erect image having a hollow roof mirror and a reflecting member having a light splitting action. Illuminating the eye of an observer looking through the eyepiece lens with a light beam from a light source means, and detecting reflected light from the eye through a light receiving element by passing through the eyepiece lens and the reflecting member,
It is characterized in that a detection means for obtaining the line-of-sight information of the eye using the output signal from the light receiving element is provided.
【００１２】特に、（１−２−１）前記反射部材は前記
接眼レンズの光軸に対して傾斜させた傾斜反射面を含む
平行平面板より成っていること、（１−２−２）前記傾
斜反射面は可視光反射で赤外光透過のダイクロイック反
射面であること、（１−２−３）前記光源手段は赤外光
放射の複数の発光ダイオードであり、該複数の発光ダイ
オードは前記接眼レンズの周辺部に設けていること、
（１−２−４）前記検出手段からの情報に基づくファイ
ンダー視野内の所定領域において、前記撮影系の焦点検
出を行う自動焦点検出手段を設けていること等を特徴と
している。In particular, (1-2-1) the reflecting member comprises a plane-parallel plate including an inclined reflecting surface inclined with respect to the optical axis of the eyepiece lens, (1-2-2) The inclined reflection surface is a dichroic reflection surface that reflects visible light and transmits infrared light. (1-2-3) The light source means is a plurality of infrared light emitting diodes, and the plurality of light emitting diodes are the light emitting diodes. Be provided in the peripheral part of the eyepiece,
(1-2-4) It is characterized in that an automatic focus detecting means for detecting the focus of the photographing system is provided in a predetermined area in the viewfinder based on the information from the detecting means.
【００１３】[0013]
【発明の実施の形態】図１は本発明を一眼レフカメラに
適用したときの実施形態１の要部概略図、図２は図１の
一部分の拡大斜視図である。1 is a schematic view of a main part of a first embodiment when the present invention is applied to a single-lens reflex camera, and FIG. 2 is an enlarged perspective view of a part of FIG.
【００１４】図中、１０１は一眼レフカメラのカメラ本
体である。１００は撮影レンズ（不図示）をカメラ本体
１０１に交換可能に装着する為のマウント、１は跳ね上
げミラーであり、フィルム（感光面）１２に被写体像を
露光するときは光路中より退避し、それ以外のときは撮
影レンズからの被写体光をファインダー系の焦点板２に
導いている。跳ね上げミラー１の一部分はハーフミラー
面となっている。２は焦点板（スクリーン）であり、撮
影レンズによる被写体像がミラー１を介して形成されて
いる。３はファインダー像正立用の光学部材である。In the figure, 101 is a camera body of a single-lens reflex camera. Reference numeral 100 denotes a mount for interchangeably mounting a photographing lens (not shown) on the camera body 101, and 1 is a flip-up mirror, which is retracted from the optical path when a subject image is exposed on the film (photosensitive surface) 12. In other cases, the subject light from the taking lens is guided to the focusing screen 2 of the finder system. A part of the flip-up mirror 1 is a half mirror surface. Reference numeral 2 denotes a focusing screen (screen) on which a subject image formed by the taking lens is formed via the mirror 1. Reference numeral 3 is an optical member for erecting the finder image.
【００１５】光学部材３はスクリーン２上のファインダ
ー像からの光束を反射させて左右反対に変換する２つの
反射部材３ｂ１，３ｂ２より成るルーフミラー（ダハ
面）３ｂ、ルーフミラー３ｂからの反射光をファインダ
ー観察方向に反射させる為にファインダー光軸ｆａに対
して傾いた最終反射面となる傾斜反射面（有効反射面）
１８ａを有する反射部材１８、そして開口３ａを有して
いる。The optical member 3 reflects a light beam from the finder image on the screen 2 and a roof mirror (a roof surface) 3b composed of two reflecting members 3b1 and 3b2 for converting the light beam to the left and right, and the reflected light from the roof mirror 3b. An inclined reflection surface (effective reflection surface) which is the final reflection surface inclined with respect to the finder optical axis fa in order to reflect in the finder observation direction.
It has a reflecting member 18 having 18a and an opening 3a.
【００１６】傾斜反射面１８ａは可視光反射で赤外光透
過のダイクロイック面より成っている。反射部材１８は
光学部材３の前面開口部に装着されている。本実施形態
ではルーフミラー３ｂと反射部材１８とを別体構成し
て、その傾斜反射面１８ａの単独でのダイクロイック膜
の蒸着を可能としている。The inclined reflecting surface 18a is a dichroic surface that reflects visible light and transmits infrared light. The reflecting member 18 is attached to the front opening of the optical member 3. In this embodiment, the roof mirror 3b and the reflecting member 18 are separately configured, and the dichroic film can be vapor-deposited on the inclined reflecting surface 18a alone.
【００１７】４は接眼レンズであり、その両面には反射
防止膜が施されている。５は赤外光を放射する光源手段
であり、複数の発光ダイオード（ＩＲＥＤ）５ａ，５
ｂ，５ｃ，５ｄより成り、これらは接眼レンズ４の周囲
に配置している。光源手段５はファインダー視野を観察
する観察者の眼球１０２を照明し、観察者の瞳孔の中心
と角膜の表面の反射光（プルキニエ像）が後述する受光
素子９で検出できるようにしている。Reference numeral 4 denotes an eyepiece lens, both surfaces of which antireflection films are applied. Reference numeral 5 is a light source unit that emits infrared light, and includes a plurality of light emitting diodes (IRED) 5a, 5
b, 5c, 5d, which are arranged around the eyepiece 4. The light source means 5 illuminates the eyeball 102 of the observer who observes the viewfinder field so that the light reflected by the center of the observer's pupil and the surface of the cornea (Purkinje image) can be detected by the light receiving element 9 described later.
【００１８】６はミラーであり、傾斜反射面１８ａを通
過した眼球１０２からの赤外反射光をカメラ本体１０１
の下方に反射させている。７は絞り、８は集光レンズ、
９は受光素子である。これらの各要素５，６，７，８，
９は各々視線検出手段の一要素を構成している。Reference numeral 6 denotes a mirror, which reflects infrared reflected light from the eyeball 102 passing through the inclined reflecting surface 18a to the camera body 101.
Is reflected below. 7 is a diaphragm, 8 is a condenser lens,
Reference numeral 9 is a light receiving element. Each of these elements 5, 6, 7, 8,
Each of the elements 9 constitutes an element of the line-of-sight detecting means.
【００１９】１０はサブミラーでありミラー１に固着し
ており、撮影レンズからの光束のうちミラー１の光透過
領域（ハーフミラー面）を通過した光束を自動焦点検出
装置（ＡＦ装置）に導光している。ＡＦ装置１１は公知
の検出方法により撮影レンズの合焦状態を単一又は複数
の測距領域について視線検出手段からの視線情報に基づ
いて検出している。Reference numeral 10 denotes a sub-mirror, which is fixed to the mirror 1 and guides the light flux from the photographing lens that has passed through the light transmission region (half mirror surface) of the mirror 1 to the automatic focus detection device (AF device). doing. The AF device 11 detects the in-focus state of the photographing lens by a known detection method for a single or a plurality of distance measuring areas based on the line-of-sight information from the line-of-sight detecting means.
【００２０】１３はカメラ本体１０１に内蔵されたスト
ロボ等のＸｅ管、１４はストロボ１３の反射傘、１５は
ストロボ１３のフロントパネル、１６は内蔵ストロボ１
３のヒンジ軸である。１７はカメラ本体１０１の上部に
設置され、外付けストロボが取り付け可能なアクセサリ
ーシューである。Reference numeral 13 is a Xe tube such as a strobe built in the camera body 101, 14 is a reflector of the strobe 13, 15 is a front panel of the strobe 13, and 16 is a built-in strobe 1.
3 hinge axis. Reference numeral 17 is an accessory shoe that is installed on the top of the camera body 101 and to which an external strobe can be attached.
【００２１】図１において、撮影レンズ（不図示）を通
過した被写体からの光束は跳ね上げミラー１により反射
し、ピント板２の焦点面又はその近くに被写体像を結像
する。ピント板２に結像した被写体像に関する光束はル
ーフミラー３ｂ、傾斜反射面１８ａで反射し、開口３ａ
を通過し、接眼レンズ４を介して撮影者の眼球１０２に
入射する。これにより観察者はピント板２に結像した被
写体像（ファインダー像）を観察している。In FIG. 1, a light flux from a subject that has passed through a taking lens (not shown) is reflected by a flip-up mirror 1 to form a subject image on or near a focal plane of a focusing plate 2. The light flux relating to the subject image formed on the focusing plate 2 is reflected by the roof mirror 3b and the inclined reflecting surface 18a, and the opening 3a is formed.
And enters the eyeball 102 of the photographer through the eyepiece lens 4. Thereby, the observer observes the subject image (finder image) formed on the focusing plate 2.
【００２２】一方、被写体からの光束のうち跳ね上げミ
ラー１の一部を通過した光束はサブミラー１０を介して
ＡＦ装置１１に入射している。このとき視線検出手段か
らの視線情報に基づく測距領域での撮影レンズの合焦状
態を検出している。On the other hand, of the light flux from the subject, the light flux that has passed through part of the flip-up mirror 1 is incident on the AF device 11 via the sub-mirror 10. At this time, the focus state of the photographing lens in the distance measuring area based on the line-of-sight information from the line-of-sight detecting means is detected.
【００２３】一方、上記構成において、撮影者（ファイ
ンダー観察者）が不図示のレリーズ釦を半押しすると、
赤外発光ダイオード（ＩＲＥＤ）５により赤外光を撮影
者の眼球１０２へ投光する。眼球１０２からの赤外反射
光は順に両面に反射防止コーティングの施された接眼レ
ンズ４、開口３ａ、傾斜反射面１８ａを通過し、ミラー
６により撮影光軸１０３側（下方）へ折り曲げられ、視
線検出光学系の絞り７、視線検出用の集光レンズ８を介
して、視線検出用のセンサー９上に眼球像を結像してい
る。その視線検出用のセンサー９からの出力信号に基づ
き撮影者の眼球１０２の視線位置（視線情報）を検出し
ている。On the other hand, in the above structure, when the photographer (viewer observer) half-presses the release button (not shown),
The infrared light emitting diode (IRED) 5 projects infrared light to the eyeball 102 of the photographer. Infrared reflected light from the eyeball 102 sequentially passes through the eyepiece 4, which has antireflection coating on both sides, the opening 3a, and the inclined reflecting surface 18a, is bent by the mirror 6 toward the photographing optical axis 103 side (downward), and An eyeball image is formed on a sensor 9 for detecting the line of sight via a diaphragm 7 of the detection optical system and a condenser lens 8 for detecting the line of sight. The line-of-sight position (line-of-sight information) of the eyeball 102 of the photographer is detected based on the output signal from the line-of-sight detection sensor 9.
【００２４】そして該視線情報に基づくファインダー視
野内の視線位置の被写体像が合焦となるように、ＡＦ装
置１１により撮影レンズの合焦レンズを駆動し焦点を合
わせている。更に撮影者がレリーズ釦を全押しすると、
ミラー１が撮影光束から退避し、サブミラー１０もミラ
ー１に連動して撮影光束から退避する。そしてミラー１
が撮影光束から退避すると、不図示のシャッター幕を制
御してフィルム１２に露光を行っている。尚、本実施形
態においては視線情報を用いてＡＦ以外の撮影動作、例
えば自動露光等を行っても良い。Then, the focusing device of the photographing lens is driven by the AF device 11 so that the subject image at the sight line position in the finder field based on the sight line information is in focus. When the photographer presses the release button fully,
The mirror 1 retracts from the photographing light flux, and the sub mirror 10 also retracts from the photographing light flux in conjunction with the mirror 1. And mirror 1
When is retracted from the photographing light flux, the shutter curtain (not shown) is controlled to expose the film 12. Note that in the present embodiment, a photographing operation other than AF, such as automatic exposure, may be performed using the line-of-sight information.
【００２５】本実施形態によれば、視線情報の検出をフ
ァインダー像正立形成用の光学部材を介して行うものに
おいて、ファインダー像正立形成用の光学部材を中空の
ルーフミラーとダイクロミラー特性のある蒸着膜を形成
したガラス板より成る傾斜反射面とを用いることによ
り、以下のような効果を得ている。According to this embodiment, in the case where the visual line information is detected through the optical member for erecting the finder image, the optical member for erecting the finder image has a hollow roof mirror and a dichroic mirror characteristic. The following effects are obtained by using an inclined reflection surface made of a glass plate on which a vapor deposition film is formed.
【００２６】（ｂ１）ファインダー光の射出面の傾き誤
差による眼球からの反射光の屈折作用がないので視線検
出精度が良い。また通過するだけなので反射防止コーテ
ィングを行う必要もない。(B1) Since there is no refraction of the reflected light from the eyeball due to the inclination error of the exit surface of the finder light, the visual axis detection accuracy is good. Also, since it only passes through, there is no need to apply an antireflection coating.
【００２７】（ｂ２）視線検出用の光学系の結像レンズ
までの光学的空気換算光路長が中実ペンタプリズムに比
べて長く取れる。従って受光素子上での結像倍率を同じ
にした場合、被検出眼球の光軸方向による結像倍率変化
が少なく、高精度な視線検出を行うことができる。(B2) The optical air-equivalent optical path length to the imaging lens of the optical system for detecting the line of sight can be made longer than that of the solid pentaprism. Therefore, when the image forming magnifications on the light receiving elements are the same, the change in the image forming magnification depending on the optical axis direction of the eye to be detected is small, and highly accurate line-of-sight detection can be performed.
【００２８】（ｂ３）中実ペンタプリズムでは傾斜反射
面から光束を取り出す際に、該傾斜反射面で光束が屈折
する為、無視できない色収差やコマ収差が発生し、又こ
れを防止する為に取り出しプリズムが必要となる。これ
に対して傾斜反射面を平行平板のガラス板としているの
で、これらの収差はあまり発生せず、取り出しプリズム
は不要である。(B3) In the solid pentagonal prism, when the light beam is extracted from the inclined reflection surface, the light beam is refracted by the inclined reflection surface, so that ignorable chromatic aberration and coma aberration occur and are taken out to prevent this. A prism is needed. On the other hand, since the inclined reflecting surface is a parallel flat glass plate, these aberrations do not occur so much and a take-out prism is unnecessary.
【００２９】（ｂ４）中実ペンタプリズムを用い傾斜反
射面をダイクロミラーとする場合には、ダハ面に銀蒸着
を行うときには傾斜反射面をマスキングし、傾斜反射面
にダイクロミラーの特性をもつ蒸着膜を形成させるとき
には、その他の面をマスキングする等の手間がかかる。
これに対して、本発明に係る中空ルーフミラーの場合に
は、傾斜反射面単品でダイクロミラーの蒸着が行え、製
作が容易となる。(B4) When a solid pentaprism is used and an inclined reflection surface is a dichroic mirror, the inclined reflection surface is masked when silver is vapor-deposited on the roof surface, and the inclination reflection surface has a dichroic mirror characteristic. When forming the film, it takes time and labor to mask other surfaces.
On the other hand, in the case of the hollow roof mirror according to the present invention, the dichroic mirror can be vapor-deposited with a single inclined reflection surface, and the manufacture is facilitated.
【００３０】また、本発明では、開口部３ａの代りに平
行平面板を設ける構成もとれる。この場合、反射防止コ
ーティングは必要であるが、中空ペンタプリズム内にゴ
ミが侵入しないという利点がある。In the present invention, a parallel plane plate may be provided instead of the opening 3a. In this case, an antireflection coating is necessary, but there is an advantage that dust does not enter the hollow pentaprism.
【００３１】[0031]
【発明の効果】本発明によれば以上のように、ファイン
ダー視野を覗く観察者の眼を光で照明し、該眼からの反
射光をファインダー像正立用の光学部材の一部を介して
受光素子に導光し、該受光素子で眼情報を検出する際、
各要素を適切に構成することにより眼球の情報を装置全
体の簡素化を図りつつ、容易にしかも高精度に検出する
カメラを達成することができる。As described above, according to the present invention, the eyes of an observer looking into the viewfinder field are illuminated with light, and the reflected light from the eyes is transmitted through a part of the optical member for erecting the viewfinder image. When guiding light to the light receiving element and detecting eye information with the light receiving element,
By appropriately configuring each element, it is possible to achieve a camera that easily and highly accurately detects eyeball information while simplifying the entire apparatus.
【図１】 本発明の実施形態１の要部断面図FIG. 1 is a sectional view of an essential part of a first embodiment of the present invention.
【図２】 図１の一部分の拡大説明図FIG. 2 is an enlarged explanatory view of a part of FIG. 1;
１ ミラー ２ スクリーン（焦点板） ３ ファインダー像正立用の光学部材 ３ａ ファインダー光射出開口部 ３ｂ ルーフミラー ４ 接眼レンズ ５ ＩＲＥＤ ６ ミラー ７ 視線検出用絞り ８ 視線検出用レンズ ９ 視線検出用センサー １０ サブミラー １１ ＡＦ装置 １２ フィルム １３ Ｘｅ管 １４ 反射傘 １５ フロントパネル １６ ヒンジ軸 １７ アクセサリーシュー １８ａ 傾斜反射面 １００ マウント １０１ カメラ本体 １０２ 眼球 １０３ 撮影光軸 ｆａ ファインダー光軸 DESCRIPTION OF SYMBOLS 1 Mirror 2 Screen (focusing plate) 3 Optical member for erecting a finder image 3a Finder light emission opening 3b Roof mirror 4 Eyepiece 5 IRED 6 Mirror 7 Eye-gaze detecting diaphragm 8 Eye-gaze detecting lens 9 Eye-gaze detecting sensor 10 Sub-mirror 11 AF Device 12 Film 13 Xe Tube 14 Reflective Umbrella 15 Front Panel 16 Hinge Axis 17 Accessory Shoe 18a Inclined Reflective Surface 100 Mount 101 Camera Body 102 Eyeball 103 Shooting Optical Axis fa Finder Optical Axis
Claims (10)
体像を中空ルーフミラーと光分割作用のある反射部材と
を有する正立像形成用の光学部材を介して接眼レンズで
観察する際、該接眼レンズを覗く観察者の眼を光源手段
からの光束で照明し、該眼からの反射光を該接眼レンズ
と該反射部材を通過させて受光素子で検出し、該受光素
子からの出力信号を用いて該眼の情報を求める検出手段
を設けたことを特徴とするカメラ。1. When observing a subject image formed on a predetermined surface by a photographing system with an eyepiece through an optical member for forming an erect image having a hollow roof mirror and a reflecting member having a light splitting function, the eyepiece is used. The observer's eye looking through the lens is illuminated with a light beam from the light source means, the reflected light from the eye is detected by the light receiving element after passing through the eyepiece lens and the reflecting member, and the output signal from the light receiving element is used. A camera provided with a detecting means for obtaining information of the eye.
対して傾斜させた傾斜反射面を含む平行平面板より成っ
ていることを特徴とする請求項１のカメラ。2. The camera according to claim 1, wherein the reflecting member comprises a plane-parallel plate including an inclined reflecting surface inclined with respect to the optical axis of the eyepiece lens.
過のダイクロイック反射面であることを特徴とする請求
項２のカメラ。3. The camera according to claim 2, wherein the inclined reflecting surface is a dichroic reflecting surface that reflects visible light and transmits infrared light.
ダイオードであり、該複数の発光ダイオードは前記接眼
レンズの周辺部に設けていることを特徴とする請求項
１，２又は３のカメラ。4. The light source means is a plurality of light emitting diodes for emitting infrared light, and the plurality of light emitting diodes are provided in a peripheral portion of the eyepiece lens. camera.
ンダー視野内の所定領域において、前記撮影系の焦点検
出を行う自動焦点検出手段を設けていることを特徴とす
る請求項１，２，３又は４のカメラ。5. An automatic focus detection means for detecting the focus of the photographing system is provided in a predetermined area within a viewfinder field based on information from the detection means. 4 cameras.
体像を中空ルーフミラーと光分割作用のある反射部材と
を有する正立像形成用の光学部材を介して接眼レンズで
観察する際、該接眼レンズを覗く観察者の眼を光源手段
からの光束で照明し、該眼からの反射光を該接眼レンズ
と該反射部材を通過させて受光素子で検出し、該受光素
子からの出力信号を用いて該眼の視線情報を求める検出
手段を設けたことを特徴とするカメラ。6. When observing a subject image formed on a predetermined surface by a photographing system with an eyepiece through an optical member for forming an erect image having a hollow roof mirror and a reflecting member having a light splitting function, the eyepiece is used. An eye of an observer looking into the lens is illuminated with a light beam from a light source means, reflected light from the eye is detected by a light receiving element by passing through the eyepiece lens and the reflecting member, and an output signal from the light receiving element is used. A camera provided with a detecting means for obtaining the line-of-sight information of the eye.
対して傾斜させた傾斜反射面を含む平行平面板より成っ
ていることを特徴とする請求項６のカメラ。7. The camera according to claim 6, wherein the reflecting member comprises a plane parallel plate including an inclined reflecting surface inclined with respect to the optical axis of the eyepiece lens.
過のダイクロイック反射面であることを特徴とする請求
項６のカメラ。8. The camera according to claim 6, wherein the inclined reflecting surface is a dichroic reflecting surface that reflects visible light and transmits infrared light.
ダイオードであり、該複数の発光ダイオードは前記接眼
レンズの周辺部に設けていることを特徴とする請求項
６，７又は８のカメラ。9. The light source means is a plurality of light emitting diodes for emitting infrared light, and the plurality of light emitting diodes are provided in a peripheral portion of the eyepiece lens. camera.
インダー視野内の所定領域において、前記撮影系の焦点
検出を行う自動焦点検出手段を設けていることを特徴と
する請求項６，７，９又は９のカメラ。10. An automatic focus detection means for detecting the focus of the photographing system is provided in a predetermined area within a viewfinder field based on information from the detection means. 9 cameras.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3547796A JPH09211310A (en) | 1996-01-30 | 1996-01-30 | Camera |
| US08/788,292 US6052533A (en) | 1996-01-30 | 1997-01-24 | Optical apparatus such as a camera |
| DE69715488T DE69715488T2 (en) | 1996-01-30 | 1997-01-29 | Optical devices, such as a camera |
| EP97300556A EP0793136B1 (en) | 1996-01-30 | 1997-01-29 | Optical apparatus such as a camera |
| HK98101575A HK1002774A1 (en) | 1996-01-30 | 1998-02-27 | Optical apparatus such as a camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3547796A JPH09211310A (en) | 1996-01-30 | 1996-01-30 | Camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09211310A true JPH09211310A (en) | 1997-08-15 |
Family
ID=12442854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3547796A Pending JPH09211310A (en) | 1996-01-30 | 1996-01-30 | Camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09211310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009512009A (en) * | 2005-10-10 | 2009-03-19 | トビイ テクノロジー アーベー | Eye tracker with wide working distance |
| US9952666B2 (en) | 2012-11-27 | 2018-04-24 | Facebook, Inc. | Systems and methods of eye tracking control on mobile device |
-
1996
- 1996-01-30 JP JP3547796A patent/JPH09211310A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009512009A (en) * | 2005-10-10 | 2009-03-19 | トビイ テクノロジー アーベー | Eye tracker with wide working distance |
| US8066375B2 (en) | 2005-10-10 | 2011-11-29 | Tobii Technology Ab | Eye tracker having an extended span of operating distances |
| US9952666B2 (en) | 2012-11-27 | 2018-04-24 | Facebook, Inc. | Systems and methods of eye tracking control on mobile device |
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