JPH0618961A - Finder for camera - Google Patents

Finder for camera

Info

Publication number
JPH0618961A
JPH0618961A JP19778992A JP19778992A JPH0618961A JP H0618961 A JPH0618961 A JP H0618961A JP 19778992 A JP19778992 A JP 19778992A JP 19778992 A JP19778992 A JP 19778992A JP H0618961 A JPH0618961 A JP H0618961A
Authority
JP
Japan
Prior art keywords
optical system
light
finder
reflecting member
infrared light
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
JP19778992A
Other languages
Japanese (ja)
Other versions
JP3115419B2 (en
Inventor
Kazuhiro Sugiyama
一宏 杉山
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP19778992A priority Critical patent/JP3115419B2/en
Publication of JPH0618961A publication Critical patent/JPH0618961A/en
Application granted granted Critical
Publication of JP3115419B2 publication Critical patent/JP3115419B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Viewfinders (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To provide a finder which is miniaturized by eliminating a light emitting window for range-finding, has a bright visual field, and does not have a parallax between a finder visual field image and a projecting position for automatic focusing, and make infrared rays for range-finding incident on an eyepiece. CONSTITUTION:An infrared ray reflecting member 8 and a member for half reflecting light in a visible region 9 are laid over the other to be provided in such a manner that the infrared ray reflecting member 8 is turned toward an objective optical system 4, on a beam splitter 6, and an infrared ray emitting element 11 is turned toward the infrared ray reflecting member 8, to be installed. The infrared rays are emitted toward an object through the objective optical system 4 by the reflection of the member 8, a visual field frame display optical system 15 is made incident on the member for half reflecting the light in the visible region 9, and a visual field frame is made incident on the eyepiece 5 by the reflection of the member 9.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、アクティブ測距用投光
光学系とファインダ光学系を結合させたカメラのファイ
ンダに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finder for a camera in which a projection optical system for active distance measurement and a finder optical system are combined.

【０００２】[0002]

【従来の技術】カメラのオートフォーカス機構には、被
写体自身の明かるさを基に計測する方法と、カメラより
光を発して被写体に反射して戻ってきた光に基づいて計
測する方法が知られている。この内、被写体自身の光を
利用する方式では、被写体が暗い場合や被写体が連続模
様や色彩に変化が無い場合等では、計測不能になること
があった。又、カメラ自身から赤外光等を発して反射し
てきた光に基づいてカメラから被写体までの距離を反射
光の角度や反射時間等から計測する方法では、前者のよ
うな問題は生じないが、カメラ前面にファインダの他に
発光用の窓、受光用の窓、視野枠を採光式で表示する方
式では更に表示用の窓が必要になり、窓を３〜４個設け
なければならず、カメラが大型化し小型軽量化の妨げに
なっていた。2. Description of the Related Art As an autofocus mechanism of a camera, there are known a method of measuring based on the brightness of the subject itself and a method of measuring based on the light emitted from the camera, reflected by the subject and returned. Has been. Among these, in the method of utilizing the light of the subject itself, measurement may not be possible when the subject is dark or when there is no change in the continuous pattern or color of the subject. In addition, in the method of measuring the distance from the camera to the subject based on the light reflected from the camera itself by emitting infrared light or the like from the angle of the reflected light, the reflection time, etc., the former problem does not occur, In addition to the viewfinder on the front of the camera, a window for emitting light, a window for receiving light, and a system for displaying the field frame by daylighting require additional windows for display, and 3 to 4 windows must be provided. Has become an obstacle to the reduction of size and weight.

【０００３】また、どちらの方法にせよ、コンパクトカ
メラに用いられる外光式（ＴＴＬでない方式）のＡＦで
は、ファインダで見た部分とオートフォーカスのターゲ
ットにパララックスが生じてしまう。Whichever method is used, in the external light type (non-TTL type) AF used in a compact camera, parallax occurs in a portion seen by a finder and an autofocus target.

【０００４】そこで、特開昭５８ー１００８４０号公報
に示すように、ファインダ光学系に向けて発光素子を設
け、半反射ミラーによってファインダ内から距離計測用
の光を発するようにして、窓を少なくし小型化させたも
のが公開されている。Therefore, as disclosed in Japanese Patent Application Laid-Open No. 58-100840, a light emitting element is provided toward the finder optical system, and light for distance measurement is emitted from the inside of the finder by a semi-reflecting mirror to reduce the window. The miniaturized version has been released.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、上記発
明のファインダにあっては、撮影範囲を示す視野枠をフ
ァインダ内に形成するにあたり、対物光学系と接眼レン
ズの間に設けた光透過ブロツクの前側に半反射ミラーを
設け、接眼レンズ側に反射ミラーにより視野枠を設け、
外光でこの視野枠を一度反射させて光透過ブロックの内
部を通し、再び光透過ブロックの対物光学系側に貼りつ
けた半反射ミラーで反射させて撮影者に送るようにしな
ければならない。However, in the viewfinder of the invention, the front side of the light transmission block provided between the objective optical system and the eyepiece lens is used in forming the field frame showing the photographing range in the viewfinder. The semi-reflective mirror is installed on the
The field frame must be once reflected by external light, passed through the inside of the light transmission block, and again reflected by the semi-reflection mirror attached to the objective optical system side of the light transmission block to be sent to the photographer.

【０００６】そのため、ファインダ内部が暗くなり、視
野枠が見にくくなり、しかも光透過ブロックの側面から
入射させた測距用の赤外光が、光透過ブロックの対物光
学系側の半反射ミラーで反射してしまい、目に有害な赤
外光が撮影者に達してしまうという問題点があった。一
方、視野枠の見やすい採光式のファインダ光学系をこの
引例のファインダに組み入れる場合には、ファインダ機
構全体の体積が増大し、カメラに組み込んだときカメラ
本体を大型化させてしまう問題があった。Therefore, the inside of the finder becomes dark, the field frame becomes difficult to see, and the infrared light for distance measurement made incident from the side surface of the light transmission block is reflected by the semi-reflection mirror on the objective optical system side of the light transmission block. As a result, infrared rays, which are harmful to the eyes, reach the photographer. On the other hand, when a daylighting finder optical system in which the field frame is easy to see is incorporated into the finder of this reference, there is a problem that the volume of the entire finder mechanism increases and the camera body becomes large when incorporated into the camera.

【０００７】本発明は、ファインダ光学系とアクティブ
ＡＦ用赤外発光素子を一体にし、カメラ前面の窓を少な
くするとともに視野枠の表示光学系をファインダとは別
の採光式にして見やすくし、かつ有害な赤外光が撮影者
の目に入らないようにしたカメラを提供することを目的
とする。According to the present invention, the viewfinder optical system and the infrared light emitting element for active AF are integrated, the window on the front of the camera is reduced, and the display optical system of the field frame is made different from the viewfinder to make it easier to see. It is an object of the present invention to provide a camera that prevents harmful infrared light from entering a photographer's eyes.

【０００８】[0008]

【課題を解決するための手段】本発明では、上記課題を
解決するため、対物光学系と接眼レンズとの間にビーム
スプリッタを配置してなるファインダ光学系を次のよう
に構成した。対物光学系に投光光学系とファインダ光学
系を兼ね備えさせ、前記ビームスプリッタに、赤外領域
は反射し可視光領域は透過させる赤外光反射部材と、可
視光領域の光を一部反射させその他は透過させる可視光
半反射部材を前記赤外光反射部材を対物光学系側にして
重ね合わせ、これをファインダ光路に対して斜めに設
け、アクティブＡＦ用赤外発光素子を投光用集光レンズ
を介して前記赤外光反射部材に向け当該赤外光反射部材
で反射したアクティブＡＦ用赤外発光素子からの光束が
対物光学系に入射するように設け、かつ当該ファインダ
光学系の側方に採光窓と視野枠からなる表示光学系を設
け、この表示光学系に入射した光を可視光半反射部材に
導き当該可視光半反射部材によって接眼レンズ内に反射
されるように構成したのである。According to the present invention, in order to solve the above problems, a finder optical system in which a beam splitter is arranged between an objective optical system and an eyepiece lens is constructed as follows. The objective optical system has both a projection optical system and a finder optical system, and the beam splitter has an infrared light reflecting member that reflects the infrared region and transmits the visible light region, and partially reflects the light in the visible light region. Others are a visible light semi-reflective member that overlaps with the infrared light reflecting member on the side of the objective optical system, and is placed diagonally with respect to the finder optical path. Provided so that the luminous flux from the infrared light emitting element for active AF reflected by the infrared light reflecting member toward the infrared light reflecting member through a lens enters the objective optical system, and the side of the finder optical system. A display optical system consisting of a daylighting window and a field frame is provided, and the light incident on this display optical system is guided to a visible light semi-reflective member and is reflected in the eyepiece lens by the visible light semi-reflective member. .

【０００９】[0009]

【実施例】以下、本発明にかかるカメラのファインダの
一実施例について述べる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a camera finder according to the present invention will be described below.

【００１０】図２にカメラ１の全体を示す。ファインダ
部２はカメラ１のレンズ３０の上部にあり、左からファ
インダ光学系３、表示光学系１５、受光部３２が配置さ
れている。ファインダ光学系３と表示光学系１５を図１
に示す。ファインダ光学系３には対物光学系４と接眼レ
ンズ５が同一の光軸で取り付けてあり、これら対物光学
系４と接眼レンズ５の間にビームスプリッタ６が設けて
ある。FIG. 2 shows the entire camera 1. The finder unit 2 is located above the lens 30 of the camera 1, and the finder optical system 3, the display optical system 15, and the light receiving unit 32 are arranged from the left. The viewfinder optical system 3 and the display optical system 15 are shown in FIG.
Shown in. An objective optical system 4 and an eyepiece lens 5 are attached to the finder optical system 3 with the same optical axis, and a beam splitter 6 is provided between the objective optical system 4 and the eyepiece lens 5.

【００１１】ビームスプリッタ６は、ガラスまたは合成
樹脂からなる光樹脂ブロックのプリズムを２つ重ね合わ
せたもので、合わせ面７の対物光学系４の側にＺｎＳと
ＭｇＦ2の組み合わせ、またはＴiＯ2とＳiＯ2の組み合
わせによる多層膜からなる赤外光を完全に反射させると
ともに可視光は透過させる赤外光反射膜８を設け、又他
方の接眼レンズ５の側には可視領域の光を一部反射しそ
の他を透過させる可視光半反射膜９を設けたものを貼り
合わせてある。The beam splitter 6 is formed by superimposing two prisms of a photo resin block made of glass or synthetic resin, and a combination of ZnS and MgF 2 or T i O on the side of the objective optical system 4 on the mating surface 7. 2 and S i visible light causes totally reflecting infrared light comprising a multilayer film according to the combination of O 2 is provided an infrared light reflecting film 8 which transmits, also light of other visible region on the side of the eyepiece 5 What is provided with a visible light semi-reflective film 9 that partially reflects light and transmits other light is bonded.

【００１２】ビームスプリッタ６の右方（図１では上
方）には赤外光を発光する発光素子１１と投光用集光レ
ンズ１２が設けてあり、これらは、発光素子１１の赤外
光が投光用集光レンズ１２を介してビームスプリッタ６
に入射すると、赤外光反射膜８で対物光学系４に向けて
反射されるように配置されている。On the right side (upper side in FIG. 1) of the beam splitter 6, a light emitting element 11 for emitting infrared light and a light condensing lens 12 are provided. The beam splitter 6 through the light condensing lens 12
Is arranged so that it is reflected by the infrared light reflection film 8 toward the objective optical system 4 when the light enters.

【００１３】対物光学系４は、ファインダ光学系３のレ
ンズ群を形成すると共に、ビームスプリッタ６で反射さ
れた発光素子１１からの赤外光をファインダ光学系３の
光軸と同一の光軸で、且つ投光用集光レンズ１２の作用
との組み合わせで前方にほぼ平行光として照射させるレ
ンズ群にもなっている。The objective optical system 4 forms the lens group of the finder optical system 3, and the infrared light from the light emitting element 11 reflected by the beam splitter 6 is on the same optical axis as the optical axis of the finder optical system 3. In addition, in combination with the action of the light-projecting condensing lens 12, it also serves as a lens group that emits substantially parallel light to the front.

【００１４】表示光学系１５は、ビームスプリッタ６の
左方（図１では下方）に設置してあり、採光用の窓１
６、視野枠を設けた枠表示板１７、ミラー１８からな
り、窓１６から入射した光が枠表示板１７を通ってミラ
ー１８で反射しビームスプリッタ６の可視光半反射膜９
に当たり、この可視光半反射膜９で一部反射されて接眼
レンズ５に入射するようになっている。The display optical system 15 is installed on the left side (downward in FIG. 1) of the beam splitter 6 and has a window 1 for daylighting.
6, a frame display plate 17 provided with a field frame and a mirror 18, and light incident from the window 16 passes through the frame display plate 17 and is reflected by the mirror 18 to form a visible light semi-reflective film 9 of the beam splitter 6.
At this time, the visible light semi-reflective film 9 is partially reflected to enter the eyepiece lens 5.

【００１５】次に、このファインダ２の作用について述
べる。Next, the operation of the finder 2 will be described.

【００１６】撮影者は接眼レンズ５から見てカメラを被
写体の方向に向ける。発光素子１１から発光された赤外
光は投光用集光レンズ１２で集光され、ビームスプリッ
タ６に入射し、入射した赤外光は赤外光反射膜８で反射
されて対物光学系４に入射し、対物光学系４から被写体
３３に向って発光する（図３に図示）。そして、被写体
３３で反射した赤外光をカメラ１の受光部３２で受光
し、計測素子３５上での位置から被写体３３までの距離
を計測する。The photographer turns the camera toward the subject as viewed from the eyepiece 5. The infrared light emitted from the light emitting element 11 is condensed by the light condensing lens 12 and is incident on the beam splitter 6. The incident infrared light is reflected by the infrared light reflection film 8 and is then reflected by the objective optical system 4. And is emitted from the objective optical system 4 toward the subject 33 (illustrated in FIG. 3). Then, the infrared light reflected by the subject 33 is received by the light receiving unit 32 of the camera 1, and the distance from the position on the measuring element 35 to the subject 33 is measured.

【００１７】表示光学系１５からの光はミラー１８で反
射されビームスプリッタ６に入射して可視半反射部材９
によって接眼レンズ５に反射されて視野枠を接眼レンズ
５内に映し出す。The light from the display optical system 15 is reflected by the mirror 18 and is incident on the beam splitter 6 so that the visible semi-reflective member 9 is formed.
Is reflected by the eyepiece lens 5 and the field frame is displayed in the eyepiece lens 5.

【００１８】したがって、本実施例によれば、撮影者は
ビームスプリッタ６の赤外光反射膜８及び可視光部分反
射膜９を通して被写体３３を見ることができ、しかも発
光素子１１からの赤外光はビームスプリッタ６の赤外光
反射膜８によってすべて対物光学系４に向けて反射さ
れ、撮影者の目に入ることはなく、かつ視野枠は表示光
学系１５からの光によるので明るく見やすいものにでき
る。そして、被写体を見るための光学系と、投光用光学
系の光軸を一致させることができるので、この２つの光
学系のパララックスを無くすことができる。更に、測距
用の赤外光発光窓が省略できるのでカメラ前面の窓を少
なくして、カメラ１を小型化できる。Therefore, according to this embodiment, the photographer can see the subject 33 through the infrared light reflection film 8 and the visible light partial reflection film 9 of the beam splitter 6, and the infrared light from the light emitting element 11 can be seen. Is reflected by the infrared light reflecting film 8 of the beam splitter 6 toward the objective optical system 4 and does not enter the eyes of the photographer, and the field of view frame is light from the display optical system 15 so that it is bright and easy to see. it can. Further, since the optical axes of the optical system for seeing the subject and the optical system for projecting light can be made to coincide with each other, the parallax of these two optical systems can be eliminated. Further, since the infrared light emitting window for distance measurement can be omitted, the window in front of the camera can be reduced and the camera 1 can be downsized.

【００１９】尚、本発明では、カメラ１におけるファイ
ンダ部２の配置は図２の本実施例のものに限らず、図４
に示すように受光部３２をレンズ３０の上方に配置し、
向かって右方の上部から採光用の窓１６、対物光学系
４、その下部に発光素子１１を配置させてもよい。この
ように配置すればカメラ１の横方向の長さを短くして、
よりコンパクトにすることができる。In the present invention, the arrangement of the finder section 2 in the camera 1 is not limited to that of this embodiment shown in FIG.
The light receiving section 32 is arranged above the lens 30 as shown in
The window 16 for light collection, the objective optical system 4, and the light emitting element 11 may be arranged below the window 16 from the upper right side. With this arrangement, the horizontal length of the camera 1 can be shortened,
It can be made more compact.

【００２０】[0020]

【発明の効果】本発明のファインダによれば、対物光学
系と接眼レンズとの間にビームスプリッタを配置してな
るカメラにおいて、対物光学系に投光光学系とファイン
ダ光学系を兼ね備えさせ、ビームスプリッタには、赤外
領域を反射し可視光領域は透過させる赤外光反射部材
と、可視光領域の一部を反射させその他は透過させる可
視光半反射部材を赤外光反射部材を対物光学系側にして
重ね合わせ、かつファインダ光路に対してこれらを斜め
に設け、アクティブＡＦ用赤外発光素子を投光用集光レ
ンズを介して赤外光反射部材に向け当該赤外光反射部材
で反射したアクティブＡＦ用赤外発光素子からの光束が
対物光学系に入射するように設け、かつファインダ光学
系の側方に採光窓と視野枠からなる表示光学系を設け、
この表示光学系に入射した光を可視光半反射部材に導き
当該可視光半反射部材によって接眼レンズ内に反射され
るようにしたので、カメラ前面の窓を少なくしてカメラ
を小型化でき、しかも視野枠が明るく見やすく、ファイ
ンダ視野像とオートフォーカスの投光位置とのパララッ
クスがなく、かつ測距用の赤外光が接眼レンズに入射し
ないファインダを提供できる。According to the finder of the present invention, in a camera in which a beam splitter is arranged between an objective optical system and an eyepiece lens, the objective optical system has both a projection optical system and a finder optical system. The splitter has an infrared light reflecting member that reflects the infrared region and transmits the visible light region, and a visible light semi-reflecting member that reflects a part of the visible light region and transmits the other part of the infrared light reflecting member. In the infrared light reflecting member, the active AF infrared light emitting element is directed toward the infrared light reflecting member through the light projecting condenser lens. The reflected light flux from the infrared light emitting element for active AF is provided so as to enter the objective optical system, and a display optical system including a daylighting window and a field frame is provided on the side of the finder optical system.
Since the light incident on the display optical system is guided to the visible light semi-reflective member and reflected in the eyepiece lens by the visible light semi-reflective member, it is possible to reduce the window on the front surface of the camera and downsize the camera. It is possible to provide a finder in which the field frame is bright and easy to see, there is no parallax between the finder field image and the projection position of the autofocus, and infrared light for distance measurement does not enter the eyepiece lens.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のファインダを示す平面図である。FIG. 1 is a plan view showing a finder of the present invention.

【図２】本発明のファインダを設けたカメラの斜視図で
ある。FIG. 2 is a perspective view of a camera provided with a finder of the present invention.

【図３】本発明のファインダの全体構成図である。FIG. 3 is an overall configuration diagram of a finder of the present invention.

【図４】本発明のファインダを備えたカメラの他の実施
例の正面図である。FIG. 4 is a front view of another embodiment of the camera provided with the finder of the present invention.

【符号の説明】[Explanation of symbols]

１ カメラ ２ ファインダ部 ３ ファインダ光学系 ４ 対物光学系 ５ 接眼レンズ ６ ビームスプリッタ ８ 赤外光反射膜 ９ 可視光半反射膜 １１ 発光素子 １５ 表示光学系 １７ 枠表示板 ３０ レンズ ３２ 受光部 1 Camera 2 Finder Section 3 Finder Optical System 4 Objective Optical System 5 Eyepiece 6 Beam Splitter 8 Infrared Light Reflecting Film 9 Visible Light Semi-Reflecting Film 11 Light Emitting Element 15 Display Optical System 17 Frame Display Plate 30 Lens 32 Light Receiving Section

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０３Ｂ 13/14 7139−2Ｋ 17/20 7316−2Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location G03B 13/14 7139-2K 17/20 7316-2K

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 対物光学系と接眼レンズとの間にビーム
スプリッタを配置してなるファインダ光学系において、
前記対物光学系に投光光学系とファインダ光学系を兼ね
備え、前記ビームスプリッタに、赤外領域は反射し可視
光領域は透過させる赤外光反射部材と、可視光領域の光
を一部反射させその他は透過させる可視光半反射部材を
前記赤外光反射部材を対物光学系側にして重ね合わせて
ファインダ光路に対して斜めに設け、アクティブＡＦ用
赤外発光素子を投光用集光レンズを介して前記赤外光反
射部材に向け当該赤外光反射部材で反射した前記アクテ
ィブＡＦ用赤外発光素子からの光束が前記対物光学系に
入射するように設け、かつ当該ファインダ光学系の側方
に採光窓と視野枠からなる表示光学系を設け、この表示
光学系に入射した光を前記可視光半反射部材に導き当該
可視光半反射部材によって前記接眼レンズ内に反射され
るように構成したことを特徴とするカメラのファイン
ダ。1. A finder optical system in which a beam splitter is arranged between an objective optical system and an eyepiece lens,
The objective optical system has both a projection optical system and a finder optical system, and the beam splitter has an infrared light reflecting member that reflects the infrared region and transmits the visible light region, and partially reflects the light in the visible light region. Other than that, a visible light semi-reflecting member that transmits the infrared light reflecting member is overlapped with the objective optical system side and is obliquely provided with respect to the finder optical path, and an active AF infrared light emitting element is provided as a projecting condenser lens. The infrared light emitting element for active AF reflected by the infrared light reflecting member toward the infrared light reflecting member is provided so as to enter the objective optical system, and the side of the finder optical system is provided. A display optical system including a daylighting window and a field frame is provided to guide the light incident on the display optical system to the visible light semi-reflecting member and is reflected in the eyepiece lens by the visible light semi-reflecting member. Camera viewfinder characterized by and.
JP19778992A 1992-07-01 1992-07-01 Camera viewfinder Expired - Fee Related JP3115419B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19778992A JP3115419B2 (en) 1992-07-01 1992-07-01 Camera viewfinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19778992A JP3115419B2 (en) 1992-07-01 1992-07-01 Camera viewfinder

Publications (2)

Publication Number Publication Date
JPH0618961A true JPH0618961A (en) 1994-01-28
JP3115419B2 JP3115419B2 (en) 2000-12-04

Family

ID=16380383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19778992A Expired - Fee Related JP3115419B2 (en) 1992-07-01 1992-07-01 Camera viewfinder

Country Status (1)

Country Link
JP (1) JP3115419B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10333213A (en) * 1997-05-27 1998-12-18 Asahi Optical Co Ltd Finder device for camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10333213A (en) * 1997-05-27 1998-12-18 Asahi Optical Co Ltd Finder device for camera

Also Published As

Publication number Publication date
JP3115419B2 (en) 2000-12-04

Similar Documents

Publication Publication Date Title
US5526083A (en) Finder system of a camera
US4947198A (en) Finder optical system for single reflex cameras
JPS58214121A (en) Device for photographic microscope
JPS6145212B2 (en)
JPH0636087B2 (en) Finder device and camera equipped with finder device
US3911457A (en) Viewfinder for single lens reflex cameras including means to view exposure guides
JP3115419B2 (en) Camera viewfinder
JP3272871B2 (en) Superimpose display device for single-lens reflex camera viewfinder
US3757656A (en) Single lens reflex camera
JPS6158023B2 (en)
JPH0225487B2 (en)
JP2000122156A (en) Display device for camera
JPS60247631A (en) Single lens reflex camera with focus detector
JPH06138369A (en) Sight line detecting device
JP3210089B2 (en) Eye gaze detection device and camera
EP0793136B1 (en) Optical apparatus such as a camera
JP3272634B2 (en) Camera viewfinder device
JP3243020B2 (en) Optical viewfinder
JPH10221591A (en) Finder of single-lens reflex camera with line-of-sight detecting function
JPS6190113A (en) Single-lens reflex camera with automatic focusing mechanism
JPS6158022B2 (en)
JPS624694B2 (en)
JPH10186490A (en) Optical equipment
JPH07244317A (en) Camera
JPH02309330A (en) Finder for camera

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20000919

LAPS Cancellation because of no payment of annual fees