JPH09211310A - Camera - Google Patents

Camera

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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
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JP
Japan
Prior art keywords
light
camera
eyepiece
inclined
characterized
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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
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JP3547796A
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Japanese (ja)
Inventor
Takanori Honda
Susumu Tamura
貴範 本田
進 田村
Original Assignee
Canon Inc
キヤノン株式会社
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Application filed by Canon Inc, キヤノン株式会社 filed Critical Canon Inc
Priority to JP3547796A priority Critical patent/JPH09211310A/en
Priority claimed from US08/788,292 external-priority patent/US6052533A/en
Publication of JPH09211310A publication Critical patent/JPH09211310A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To easily and precisely detect the information of an eyeball while the whole of a device is simplified by transmitting light reflected from an eye through an eyepiece and a reflection member, detecting it by using a photodetector and obtaining the information by using a signal outputted from the photodetector.
SOLUTION: When a release button is half-depressed by a photographer (finder observer), infrared light is projected toward the eyeball 102 of the photographer by an infrared light emitting diode (IRED) 5. The infrared light reflected from the eyeball 102 is transmitted through the eyepiece 4 applied with antireflection coating, an aperture 3a and an inclined reflection surface 18a in turn and bent to a photographing optical axis 103 side (downward) by a mirror 6 so as to form an eyeball image on a sensor for detecting the line of sight 9 through the diaphragm 7 of a line-of-sight detection optical system and a condensing lens for detecting the line of sight 8. Then, the line-of-sight position (line-of-sight information) of the eyeball 102 of the photographer is detected based on the signal outputted from the sensor 9.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【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。 The present invention relates to relates to a camera having a sight line detecting means, in particular to detect the viewing direction of a photographer looking through the viewfinder field of view line of sight detection means, determining the gaze direction and the gaze point in the finder field together with various photographing operation based on a signal obtained by the visual axis detecting means, for example a photographic camera and to perform focus detection by the focus detection means has a function of detecting an in-focus state in the plurality of regions of an object, a video camera , it is suitable for SV camera or 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、 Hitherto, it detects the direction of the line of sight of the photographer,
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。 Or photographer is observing which regions (positions) in the viewfinder field of view, is detected by the sight line detecting means having a gaze direction of a so-called photographer Some cameras automatically based on a signal from the visual axis detecting means camera to control the focusing and various shooting function of the automatic exposure and the like have been proposed.

【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 JP-A-61-61135, mechanically controlled distance measurement direction of the focus detection apparatus based on an output signal from the visual axis detecting means, and so as to adjust the focus state of the imaging system the camera has been 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。 [0004] In JP-A 3-171122, JP-guided onto the viewfinder optical axis by using a dichroic mirror infrared light from the light source means provided in a portion of the finder system of single lens reflex camera, the infrared light projecting light to the photographer's eyeball observing the finder field, from the cornea of ​​the eyeball infrared reflection light eyepiece, through the inclined reflective surfaces of the pentagonal prism for visual axis detection and guided to the outside pentaprism camera having a sight line detecting means detects the sight line information and configured to direct the sensor has been proposed.

【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。 As visual axis detecting method of detecting the sight line information of the observer's eye looking into the focusing screen which object image is formed (the finder field) by the photographing system in the single-lens reflex camera [0005], the observer's eye passed through the emission surface and the inclined reflective surfaces of the pentagonal prism for eyepiece viewfinder ZoTadashi standing light reflected from it is emitted out of the pentagonal prism, then, a method of detecting and guided to the light receiving element is relatively it is characterized in that it is possible to obtain the visual line information with a simple configuration. 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。 However, the reflected light from the eyeball guided from the exit surface of the pentaprism, a method of detecting the sight line information by guided to the light receiving element after being emitted through the inclined reflective surfaces of the pentagonal prism is as follows there was such problems.

【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。 [0006] (a1) is required to be dichroic mirror surface of the infrared light transmitted through the visible light reflected by the inclined reflective surfaces of the pentagonal prism. 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。 Therefore, we must be masked the inclined reflective surfaces when subjected to silver deposited on roof surface of the pentagonal prism for enhancing the reflectivity of the pentagonal prism (roof face). 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。 Thereafter, when performing the coating, such as with the characteristics of the dichroic mirror inclined reflecting surface is a plurality of working steps, such as masking the other necessary range as a finder field of view is required, production comes 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。 [0007] (a2) to take out reflected light from the eyeball from the inclined reflective surfaces of the pentagonal prism, therefore the injection angle is not perpendicular to the inclined reflecting surface, negligible chromatic aberration and coma aberration come occurred. 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。 Detecting optical system it has become necessary to separate prism for extraction in order to prevent it coming 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、 [0008] The present invention illuminates the observer's eye looking through the finder field in the light, guided to the light receiving element through a part of the optical member for reflecting light viewfinder ZoTadashi elevation from the eye, receiving light when detecting the eye information element, the information of the eye while achieving simplification of the entire apparatus by appropriately configuring the elements,
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。 An object easily and provides a camera that detects 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。 Camera having a sight line detecting means of the present invention SUMMARY OF THE INVENTION comprises a reflective member with a hollow roof mirror and the light splitting action an object image formed on the predetermined plane by (1-1) imaging system when observing through the eyepiece via an optical member for erecting image forming with the observer's eye looking through the eyepiece and illuminated with a light beam from a light source means, and the eyepiece of the reflected light from the eye the reflecting member was a pass is detected by the light receiving element, it is characterized in that a detecting means for obtaining the information of the eye by using an output signal from the light receiving element.

【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、 [0010] In particular, (1-1-1) the reflecting member that is made from a plane-parallel plate comprising an inclined reflecting surface which is inclined with respect to the optical axis of the eyepiece, (1-1-2) wherein it inclined reflecting surface is a dichroic reflecting surface of the infrared light transmitted through the visible light reflection, (1-1-3) said light source means is a plurality of light emitting diodes of infrared light radiation, the plurality of light emitting diodes the that it is provided on the periphery of the eyepiece,
(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。 (1-1-4) in a predetermined area in the viewfinder field of view based on the information from the detecting means, is characterized in such that is provided with the auto-focus detection means for performing focus detection of the photographing system.

【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、 [0011] (1-2) when observing through the eyepiece via an optical member for erecting image forming and a reflective member with a hollow roof mirror and the light splitting action an object image formed on the predetermined plane by the imaging system the observer's eye looking through the eyepiece and illuminated with a light beam from a light source means, and detected by the light receiving element and passed through a ocular lens and said reflective member reflecting light from the eye,
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。 It is characterized in that a detecting means for obtaining the sight line information of the eye by using an output signal from the light receiving element.

【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、 [0012] In particular, (1-2-1) the reflecting member that is made from a plane-parallel plate comprising an inclined reflecting surface which is inclined with respect to the optical axis of the eyepiece, (1-2-2) wherein it inclined reflecting surface is a dichroic reflecting surface of the infrared light transmitted through the visible light reflection, (1-2-3) said light source means is a plurality of light emitting diodes of infrared light radiation, the plurality of light emitting diodes the that it is provided on the periphery of the eyepiece,
(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。 (1-2-4) in a predetermined area in the viewfinder field of view based on the information from the detecting means, is characterized in such that is provided with the auto-focus detection means for performing focus detection of the photographing system.

【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。 DETAILED DESCRIPTION OF THE INVENTION Figure 1 is schematic view of the essential portions of Embodiment 1 when the present invention is applied to a single-lens reflex camera, FIG. 2 is an enlarged perspective view of a portion of FIG.

【0014】図中、101は一眼レフカメラのカメラ本体である。 [0014] In the figure, 101 denotes a camera body of a single-lens reflex camera. 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。 100 mount for replaceably mounted photographing lens (not shown) to the camera body 101, 1 is the mirror flipped, when exposing the object image on the film (photosensitive surface) 12 is retracted from the optical path, in a case other than the above has led to the subject light from the taking lens to the focus plate 2 of the viewfinder system. 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。 A portion of the flip-up mirror 1 is a half mirror surface. 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。 2 is a focusing screen (screen), a subject image by the photographing lens is formed through the mirror 1. 3はファインダー像正立用の光学部材である。 3 is an optical member of the finder ZoTadashi standing.

【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) [0015] The optical member 3 is roof mirror (roof surface) consisting of two reflecting members 3b1,3b2 that the light beam is reflected into a left and right opposite to from the viewfinder image on the screen 2 3b, the reflected light from the roof mirror 3b inclined reflecting surfaces as the final reflecting surface tilted with respect to the finder optical axis fa for reflecting the finder viewing direction (the effective reflective surface)
18aを有する反射部材18、そして開口3aを有している。 Reflecting member 18 having a 18a and has 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。 The inclined reflecting surfaces 18a is made from dichroic surface of the infrared light transmitted through the visible light reflection. 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。 Reflecting member 18 is attached to the front opening of the optical member 3. 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。 In this embodiment with separately configure the roof mirror 3b and the reflecting member 18, thereby enabling the deposition of a dichroic film alone of the inclined reflecting surface 18a.

【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。 [0017] 4 is an eyepiece lens, an antireflection film is applied to both surfaces. 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 5 is a light source means for emitting infrared light, a plurality of light emitting diodes (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。 b, 5c, consists 5d, it is arranged around the eyepiece 4. 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。 Light source means 5 illuminates the eyeball 102 of the observer who observes the finder field, the reflected light of the observer's pupil center and the corneal surface of the (Purkinje image) is to be detected by the light receiving element 9 to be 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 [0018] 6 is a mirror, a camera body 101 the infrared reflection light from the eye 102 which has passed through the inclined reflecting surfaces 18a
の下方に反射させている。 Of which is reflected downward. 7は絞り、8は集光レンズ、 7 is squeezed, 8 condenser lens,
9は受光素子である。 9 is a light-receiving element. これらの各要素5,6,7,8, Each of these elements 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。 9 is respectively constitute an element of visual axis 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。 [0019] 10 is secured to the mirror 1 is sub-mirror guiding the light beam passed through the light transmitting region of the mirror 1 (half mirror surface) of the light flux from the photographic lens to an automatic focus detection device (AF device) doing. 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。 AF device 11 is detected on the basis of the sight line information from the sight line detecting means for a single or a plurality of distance measurement areas the focus state of the photographing lens by a known detection methods.

【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 [0020] 13 Xe tube such as an electronic flash incorporated in the camera body 101, 14 is a reflector of the flash 13, 15 front panel of the electronic flash 13, 16 is built-in flash 1
3のヒンジ軸である。 3, which is of the hinge axis. 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。 17 is installed on top of the camera body 101, an accessory shoe attachable external flash.

【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。 [0021] In FIG. 1, is reflected by the mirror 1 light flux splashed from the subject passing through the photographing lens (not shown), it forms a subject image focal plane of the focusing plate 2 or near. 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 The luminous flux of a subject image formed on the focusing plate 2 roof mirror 3b, reflected by the inclined reflective surfaces 18a, opening 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。 It passes through and is incident on the eyeball 102 of the photographer through the eyepiece 4. 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。 Thus observer observes the subject image formed on the focusing plate 2 (finder image).

【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。 On the other hand, is incident to the AF unit 11 is the light beam which has passed through the portion of the mirror 1 via the sub-mirror 10 splashed out of the light flux from the subject. 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。 At this time it detects the focus state of the photographing lens in the distance measurement area based on the sight line information from the sight line detecting means.

【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、 On the other hand, in the above structure, the photographer (finder observer) is half-pressed the release button, not shown,
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。 The infrared light emitting diodes (IRED) 5 infrared light to the photographer's eyeball 102 for projecting light. 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。 Infrared reflected light eyepiece turn has been subjected to anti-reflection coating on both surfaces of the eyeball 102 4, openings 3a, passes through the inclined reflecting surfaces 18a, bent to the photographing optical axis 103 side (downward) by the mirror 6, the line of sight detection optical system of the aperture 7, through a condenser lens 8 for visual line detection, and forms an eyeball image on the sensor 9 for visual axis detection. 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。 And it detects the viewpoint position of the photographer's eyeball 102 (viewing information) based on an output signal from the sensor 9 for the sight line detection.

【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。 [0024] Then as the object image of the line-of-sight position of the finder field of view based on the visual axis information is focused, and focused by driving the focusing lens of the photographing lens by the AF device 11. 更に撮影者がレリーズ釦を全押しすると、 Further photographer fully presses the shutter release button,
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。 Mirror 1 is retracted from the photographing light beam, in conjunction with the sub-mirror 10 to the mirror 1 is retracted from the photographing light beam. そしてミラー1 And mirror 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。 There when retracted from the photographing light beam is performed by controlling the exposure to the film 12 the shutter curtain (not shown). 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。 In the present embodiment, photographing operations other than the AF using gaze information may for example be carried out automatic exposure and the like.

【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 the present embodiment, in which the detection of the sight line information via an optical member for finder image erecting formed, an optical member for viewfinder image erecting formation of hollow roof mirror and dichroic mirror characteristics by using an inclined reflecting surface made of a glass plate formed with certain deposition film, thereby obtaining the following effects.

【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。 [0026] (b1) good visual axis detection accuracy since there is no refraction effect of the reflected light from the eyeball due to the inclination error of the exit surface of the finder optical. 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。 Also it is not necessary to perform an anti-reflection coating since only pass.

【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。 [0027] (b2) optically equivalent air optical path length to the imaging lens of the optical system for detecting gaze take longer than the solid pentagonal prism. 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。 Thus when the same imaging magnification on the light receiving element, can be imaging magnification change by the optical axis direction of the detection eye is small, perform highly accurate sight line detection.

【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。 [0028] (b3) in the time of taking out the light beam from the inclined reflecting surface in the real pentaprism, since the light beam in the inclined reflecting surface is refracted, negligible chromatic aberration and coma aberration occurs, and taken out in order to prevent this prism is required. 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。 Since the inclined reflective surfaces with the glass plate of a parallel plate with respect to this, these aberrations are not so much generated, extraction prism is not necessary.

【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。 [0029] (b4) in the case of a dichroic mirror inclined reflecting surfaces using real pentaprism, masking the inclined reflective surfaces when performing silver deposited on roof surface, deposition having the properties of dichroic mirrors tilted reflective surface when forming the film, it takes time, such as masking the other faces.
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。 In contrast, in the case of a hollow roof mirror according to the present invention, the inclined reflecting surface separately perform the deposition of the dichroic mirror, fabrication 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。 [0030] In the present invention, taken also be provided with a plane-parallel plate in place of the opening 3a. 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 this case, the anti-reflection coating is required, there is an advantage that dust in the hollow pentagonal prism does not enter.

【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、 As described above, according to the present invention illuminates the observer's eye looking through the finder field in the light, the reflected light from the eye through a portion of the optical member finder ZoTadashi standing guided to the light receiving element, when detecting the eye information with the light receiving element,
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。 While achieving simplification of the entire apparatus information of the eye by appropriately configuring the elements can be easily and achieve the camera to detect with high accuracy.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 本発明の実施形態1の要部断面図 Main part sectional view of an embodiment 1 of the present invention

【図2】 図1の一部分の拡大説明図 FIG. 2 is a enlarged view of a portion of FIG 1

【符号の説明】 DESCRIPTION OF SYMBOLS

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 1 Mirror 2 screen (focusing screen) 3 viewfinder ZoTadashi optical member 3a finder optical emission opening 3b roof mirror 4 eyepiece 5 IRED 6 mirror 7 for visual line detection aperture 8 for visual line detection lens 9 for visual line detection sensor 10 submirror for standing 11 AF unit 12 the film 13 Xe tube 14 reflector 15 the front panel 16 hinge shaft 17 accessory shoe 18a inclined reflecting surfaces 100 mount 101 camera body 102 eyeball 103 photographing optical axis fa finder optical axis

Claims (10)

    【特許請求の範囲】 [The claims]
  1. 【請求項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するカメラ。 1. A when observing through the eyepiece via an optical member for erecting image forming and a reflective member with a hollow roof mirror and the light splitting action an object image formed on the predetermined plane by the imaging system, the ocular the observer's eye looking through the lens illuminated by the light beam from the light source means, and detected by the light receiving element and passed through a ocular lens and said reflective member reflecting light from the eye, using the output signals from the light receiving element characterized in that a detecting means for obtaining the information of the ocular Te camera.
  2. 【請求項2】 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を特徴とする請求項1のカメラ。 Wherein said reflecting member according to claim 1 of the camera, characterized in that it comprises from parallel plate comprising an inclined reflecting surface which is inclined with respect to the optical axis of the eyepiece.
  3. 【請求項3】 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を特徴とする請求項2のカメラ。 Wherein the inclined reflective surfaces according to claim 2 of the camera, which is a dichroic reflecting surface of the infrared light transmitted through the visible light reflection.
  4. 【請求項4】 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を特徴とする請求項1,2又は3のカメラ。 Wherein said light source means is a plurality of light emitting diodes of infrared light radiation, the plurality of light-emitting diode according to claim 1, 2 or 3, characterized in that provided on the periphery of the eyepiece camera.
  5. 【請求項5】 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を特徴とする請求項1,2,3又は4のカメラ。 5. A predetermined area in the viewfinder field of view which is based on information from said detection means, according to claim 1, 2, 3, characterized in that is provided an automatic focus detection means for performing focus detection of the imaging system or 4 of the camera.
  6. 【請求項6】 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するカメラ。 Wherein when observing through the eyepiece via an optical member for erecting image forming and a reflective member with a hollow roof mirror and the light splitting action an object image formed on the predetermined plane by the imaging system, the ocular the observer's eye looking through the lens illuminated by the light beam from the light source means, and detected by the light receiving element and passed through a ocular lens and said reflective member reflecting light from the eye, using the output signals from the light receiving element camera, characterized in that a detecting means for obtaining the sight line information of the eye Te.
  7. 【請求項7】 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を特徴とする請求項6のカメラ。 Wherein said reflecting member is a camera according to claim 6, characterized in that it comprises from parallel plate comprising an inclined reflecting surface which is inclined with respect to the optical axis of the eyepiece.
  8. 【請求項8】 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を特徴とする請求項6のカメラ。 8. A camera according to claim 6, wherein the inclined reflective surfaces are dichroic reflecting surface of the infrared light transmitted through the visible light reflection.
  9. 【請求項9】 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を特徴とする請求項6,7又は8のカメラ。 Wherein said light source means is a plurality of light emitting diodes of infrared light radiation, the plurality of light-emitting diode according to claim 6, 7 or 8, characterized in that provided on the periphery of the eyepiece camera.
  10. 【請求項10】 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を特徴とする請求項6,7,9又は9のカメラ。 10. A predetermined area in the viewfinder field of view which is based on information from said detection means, according to claim 6, 7, 9, characterized in that is provided an automatic focus detection means for performing focus detection of the imaging system or 9 camera.
JP3547796A 1996-01-30 1996-01-30 Camera Pending JPH09211310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3547796A JPH09211310A (en) 1996-01-30 1996-01-30 Camera

Applications Claiming Priority (6)

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
DE1997615488 DE69715488D1 (en) 1996-01-30 1997-01-29 Optical devices such as a camera
DE1997615488 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

Publications (1)

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JPH09211310A true JPH09211310A (en) 1997-08-15

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JP3547796A Pending JPH09211310A (en) 1996-01-30 1996-01-30 Camera

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
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 a wide range of operating distance
US9952666B2 (en) 2012-11-27 2018-04-24 Facebook, Inc. Systems and methods of eye tracking control on mobile device

Cited By (3)

* Cited by examiner, † Cited by third party
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 a wide range of operating 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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