JPH0411850B2 - - Google Patents
Info
- Publication number
- JPH0411850B2 JPH0411850B2 JP18197881A JP18197881A JPH0411850B2 JP H0411850 B2 JPH0411850 B2 JP H0411850B2 JP 18197881 A JP18197881 A JP 18197881A JP 18197881 A JP18197881 A JP 18197881A JP H0411850 B2 JPH0411850 B2 JP H0411850B2
- Authority
- JP
- Japan
- Prior art keywords
- contacts
- contact
- lens
- camera body
- interchangeable lens
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/20—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with change of lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Structure And Mechanism Of Cameras (AREA)
Description
【発明の詳細な説明】
本発明は交換レンズ内の電気装置とカメラ本体
内の電源を含む電気装置とを接続するコネクター
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector device for connecting an electrical device within an interchangeable lens to an electrical device including a power source within a camera body.
近年、カメラ機構の電子化が進むにつれて、カ
メラ本体と交換レンズ間に設けられた電気的コネ
クター装置を介して、交換レンズの開放Ｆ値や焦
点距離などの情報を電気的にカメラ本体側に伝達
する提案が増加している。これ等の情報を発する
電気装置の電源はカメラ本体側に内蔵されている
のが一般的である。また一方、カメラ機構の自動
化が進むにつれて、レンズ交換式カメラにおいて
も、オートフオーカス機能を備えたものの開発が
盛んになり、カメラ本体と交換レンズとの間でオ
ートフオーカス用の複数の信号授受がなされるよ
うになつて来た。このオートフオーカス機能を有
するカメラシステムに於いては、自動焦点調節装
置の要素、即ち焦点検出器、撮影光学系移動用駆
動源および電源をカメラシステム内のどこに配置
するかによつて種々システムが異なるが、最も有
利なシステムの一つとして、交換レンズ鏡筒内に
レンズ駆動源（モーター）を設け、カメラ本体内
に焦点検出器と電源とを配置する方式が有る。こ
の場合、交換レンズとカメラ本体とを結合するマ
ウント部に多数のコネクター接触子を設ける必要
があるが、カメラ本体側の電源用接触子が、交換
レンズ側の電源用以外の接触子に接触導通して、
交換レンズ内の電気装置を狂わせたり破損したす
る恐れがある。 In recent years, as camera mechanisms have become more electronic, information such as the aperture aperture and focal length of the interchangeable lens is electrically transmitted to the camera body through an electrical connector device installed between the camera body and the interchangeable lens. The number of proposals to do so is increasing. The power source for the electrical devices that emit this information is generally built into the camera body. On the other hand, as the automation of camera mechanisms progresses, the development of interchangeable lens cameras with an autofocus function has become active, and multiple signals for autofocus can be exchanged between the camera body and the interchangeable lens. has come to be practiced. In camera systems with this autofocus function, various systems are available depending on where in the camera system the elements of the autofocus adjustment device, that is, the focus detector, the drive source for moving the photographic optical system, and the power source are placed. Although different, one of the most advantageous systems is a system in which a lens drive source (motor) is provided within the interchangeable lens barrel, and a focus detector and power source are located within the camera body. In this case, it is necessary to provide a large number of connector contacts on the mount that connects the interchangeable lens and the camera body, but the power supply contact on the camera body side has contact continuity with the contacts other than the power supply contact on the interchangeable lens side. do,
There is a risk of disrupting or damaging the electrical device inside the interchangeable lens.
上記の欠点を除くために、カメラ本体側のすべ
ての接触子にスイツチ機構を設け、交換レンズを
カメラ本体に装着する動作によつてこのスイツチ
をONするように構成したものが提案公開されて
いるが、機構が複雑で、コスト高となる。また、
各接触子を撮影レンズの光軸方向または光軸に垂
直な方向にずらせて配置し、接続すべき接触子以
外の接触子とは接触しないように構成したものも
公開されているが、交換レンズ側、カメラ本体側
共にスペースの余裕が無いので、小数の接触子し
か設置できない欠点がある。本発明は、上記のよ
うな欠点をすべて解消し、狭隘なマウント部にお
いても多数のコネクター接触子（以下単に「接触
子」と称する。）を設けることができ、しかも構
造が簡単で、各接触子とも電気的な干渉を起さな
いコネクター装置を提供することを目的とする。 In order to eliminate the above drawbacks, a proposal has been made public in which a switch mechanism is provided on all the contacts on the camera body side, and the switch is turned on by the action of attaching an interchangeable lens to the camera body. However, the mechanism is complicated and the cost is high. Also,
Interchangeable lenses have also been released in which each contact is shifted in the direction of the optical axis of the photographing lens or in a direction perpendicular to the optical axis so that it does not come into contact with any contacts other than those to be connected. Since there is not enough space on both the side and the camera body side, there is a drawback that only a small number of contacts can be installed. The present invention eliminates all of the above-mentioned drawbacks, allows a large number of connector contacts (hereinafter simply referred to as "contacts") to be provided even in a narrow mounting area, and has a simple structure, allowing each contact to be The purpose of the present invention is to provide a connector device that does not cause electrical interference with other devices.
上記の目的達成のために、本発明は、交換レン
ズ側の複数の接触子をレンズ光軸に垂直な平面内
の同一円周上に設けると共に、これに対向するカ
メラ本体側の接触子の内、電源用の接触子は、交
換レンズの装着動作の終期においてのみ、交換レ
ンズ側の接触子と接触導通して、電源ラインを形
成するように、その電源用接触子を配置したこと
を特徴としている。 In order to achieve the above object, the present invention provides a plurality of contacts on the interchangeable lens side on the same circumference in a plane perpendicular to the optical axis of the lens, and a plurality of contacts on the camera body side facing the lens. , the power supply contactor is arranged so that it makes contact with the contactor on the interchangeable lens side and forms a power supply line only at the end of the operation of attaching the interchangeable lens. There is.
以下、添付の図面に示された実施例に基づいて
本発明を詳しく説明する。 Hereinafter, the present invention will be explained in detail based on embodiments shown in the accompanying drawings.
第１図は本発明の前提となる例を示す交換レン
ズの斜視図で、第２図は第１図の交換レンズをカ
メラ本体と結合した例の断面図である。交換レン
ズＡのレンズ鏡筒１には距離調節環２、絞り調節
環３、レンズバヨネツト４およびレンズ保護リン
グ５が設けられている。このレンズ保護リング５
の切欠き部５ａには絶縁性の接触子保持駒６が挿
入され、レンズバヨネツト４の内面に固定されて
いる。接触子保持駒６には導体の板ばね７ａ〜７
ｆ（第２図参照、ただし７ｃ〜７ｆは不図示）が
固定され、その自由端に半球状の接点８ａ〜８ｆ
がそれぞれ固定されている。この板ばねと接点を
もつてレンズ側の接触子９ａ〜９ｆを形成する。
第２図において、１０，１１，１２は固定レン
ズ、１３，１４，１５は移動レンズ、１６は移動
レンズ筒、１７はモーター、１８は駆動歯車で、
モーター１７は駆動歯車１８を介して移動レンズ
筒１６を回転し、同時にこれを光軸方向に移動さ
せて、カメラ本体Ｂ内のフイルム面１９に被写体
像を結ばせる。２０はモーター１７を正逆回転お
よび停止させるための駆動回路、２１はレンズの
開放絞り値情報を発生させるための絞り情報回路
である。 FIG. 1 is a perspective view of an interchangeable lens showing an example on which the present invention is based, and FIG. 2 is a sectional view of an example in which the interchangeable lens of FIG. 1 is combined with a camera body. A lens barrel 1 of the interchangeable lens A is provided with a distance adjustment ring 2, an aperture adjustment ring 3, a lens bayonet 4, and a lens protection ring 5. This lens protection ring 5
An insulating contact holding piece 6 is inserted into the notch 5a and fixed to the inner surface of the lens bayonet 4. The contact holding piece 6 has conductor leaf springs 7a to 7.
f (see FIG. 2, however, 7c to 7f are not shown) is fixed, and hemispherical contacts 8a to 8f are attached to the free ends of the contact points 8a to 8f.
are each fixed. Contacts 9a to 9f on the lens side are formed by making contact with this leaf spring.
In FIG. 2, 10, 11, and 12 are fixed lenses, 13, 14, and 15 are movable lenses, 16 is a movable lens barrel, 17 is a motor, and 18 is a driving gear.
The motor 17 rotates the movable lens barrel 16 via a drive gear 18 and simultaneously moves it in the direction of the optical axis to form a subject image on a film surface 19 within the camera body B. Reference numeral 20 is a drive circuit for rotating the motor 17 in forward and reverse directions and stopping it, and reference numeral 21 is an aperture information circuit for generating information on the aperture value of the lens.
レンズ１０〜１５を通過した光の一部は主ミラ
ー２２にて、焦点板２３、コンデンサーレンズ２
４、ペンタプリズム２５、接眼レンズ２６より成
るフアインダー光学系側に反射する。２７は焦点
板２３上の像を観察する窓である。またレンズを
透過した光の一部は主ミラー２２を透過し、サブ
ミラー２８によつて反射され、検出素子２９に受
光される。検出素子２９の光電出力は演算回路３
０で演算され、撮影レンズの合焦位置を表わす出
力となり、制御回路３１に入力され、制御回路３
１の出力信号３２，３３によつて後述のカメラ本
体側接触子３７ｃ，３７ｄおよびレンズ側接触子
９ｃ，９ｄを介し、更に駆動回路２０を介してモ
ーター１７が制御される。 A part of the light that has passed through the lenses 10 to 15 is sent to the main mirror 22, to the focus plate 23, and to the condenser lens 2.
4. The light is reflected toward the viewfinder optical system consisting of the pentaprism 25 and the eyepiece lens 26. 27 is a window for observing the image on the focus plate 23. Further, a part of the light that has passed through the lens passes through the main mirror 22, is reflected by the sub-mirror 28, and is received by the detection element 29. The photoelectric output of the detection element 29 is transmitted to the arithmetic circuit 3.
0 and becomes an output representing the in-focus position of the photographic lens, which is input to the control circuit 31 and output from the control circuit 3.
The motor 17 is controlled by output signals 32 and 33 of 1 through camera body side contacts 37c and 37d and lens side contacts 9c and 9d, which will be described later, and further through a drive circuit 20.
レンズバヨネツト４を着脱可能に保持するカメ
ラ本体側のレンズマウント部３４の内側には絶縁
性の接触子保持部材３５が設けられ、その上に導
体の接触片３６ａ〜３６ｆ（３６ｃ〜３６ｆは不
図示）を有する接触子３７ａ〜３７ｆが形成され
ている。交換レンズＡ内の絞り情報回路２１の出
力信号は、交換レンズ側の接触子９ｅ，９ｆ、カ
メラ本体側の接触子３７ｅ，３７ｆおよびコード
３９，４０を介して開放絞り値導入回路３８に入
力され、この情報は更に制御回路３１に出力され
る。また回路３０，３１，３８は電源電池４１に
接続する電源回路４２から電気が供給される。ま
た一方、電源電池４１の陽極はコード４３を介し
て接触子３７ａに接続し、陰極はコード４４を介
して接触子３７ｂに接続しており、それぞれ対向
する交換レンズ側の接触子９ａ，９ｂを介して駆
動回路２０に接続している。 An insulating contact holding member 35 is provided inside the lens mount portion 34 on the camera body side that removably holds the lens bayonet 4, and conductive contact pieces 36a to 36f (36c to 36f are not included) are provided on the inside of the lens mount portion 34 on the camera body side that removably holds the lens bayonet 4. Contactors 37a to 37f are formed having the following: (as shown in the figure). The output signal of the aperture information circuit 21 in the interchangeable lens A is input to the open aperture introduction circuit 38 via contacts 9e and 9f on the interchangeable lens side, contacts 37e and 37f on the camera body side, and cords 39 and 40. , this information is further output to the control circuit 31. Further, the circuits 30, 31, and 38 are supplied with electricity from a power supply circuit 42 connected to a power supply battery 41. On the other hand, the anode of the power supply battery 41 is connected to the contact 37a via the cord 43, and the cathode is connected to the contact 37b via the cord 44. It is connected to the drive circuit 20 via.
第３図は、第２図のコネクター部の概略を示す
説明図で、レンズバヨネツト４をカメラ本体側マ
ウント部３４に挿入し、所定の角度θだけ矢印方
向（反時計方向）に交換レンズＡを回転すると、
レンズバヨネツト４に設けられた切欠き溝４ａに
レンズマウント部３４に設けられたレンズ着脱ピ
ン４５が落込むので、交換レンズＡはその回転を
阻止され、カメラ本体Ｂとの装着が完了する。そ
の際、レンズ側の接触子９ａ〜９ｆも角度θだけ
回転し、点線で示された位置から実線で示された
位置まで回転変位し、第３図の如くそれぞれ対向
するカメラ本体側の接触子３７ａ〜３７ｆと接触
導通する。第２図で明らかなように、接触子３７
ａは電源電池４１の陽極に接続しているが、第３
図において最左端に配置されているので、第４図
イのように、接触子３７ａが対向する接触子９ａ
と接触するまでは、交換レンズ側の接触子のいず
れとも接触しない。従つて、誤まつて他の接触子
と接触導通して、回路を破損するようなことはな
い。各接触子間の間隔が等間隔ｄの場合には、第
４図イの如く３７ａは最も左端に配置する必要が
あり、もし第４図ロの如く電源電池用接触子３７
ａ，３７ｂを、制御信号用の接触子３７ｃ，３７
ｄの右側に配置した場合には、接触子３７ａ，３
７ｂは、交換レンズの回転の中途において接触子
９ｃ，９ｄと接触導通し、駆動回路２０内の例え
ばスイツチング素子などを破壊する恐れがある。
カメラ本体側の接触子３７ａ〜３７ｆと交換レン
ズ側の接触子９ａ〜９ｆとが共に第４図ハの如く
第４図イとは左右反対に配置されているとすれ
ば、電源電池用接触子３７ａ，３７ｂは第１に絞
り情報回路用の接触子９ｆ，９ｅに接触導通し
て、この回路内の回路素子を破損し、更に回転が
進み、駆動回路２０の接触子９ｄ，９ｃに接する
とその回路素子を破壊することになる。 FIG. 3 is an explanatory diagram schematically showing the connector section of FIG. 2. Insert the lens bayonet 4 into the camera body side mount section 34, and insert the interchangeable lens A by a predetermined angle θ in the direction of the arrow (counterclockwise). When you rotate ,
Since the lens attachment/detachment pin 45 provided in the lens mount portion 34 falls into the notch groove 4a provided in the lens bayonet 4, rotation of the interchangeable lens A is prevented, and attachment to the camera body B is completed. At this time, the contacts 9a to 9f on the lens side are also rotated by an angle θ, rotationally displaced from the position shown by the dotted line to the position shown by the solid line, and the contacts on the camera body side facing each other are rotated as shown in FIG. 37a to 37f and are electrically connected. As is clear from FIG. 2, the contact 37
a is connected to the anode of the power supply battery 41, but the third
Since the contact 37a is located at the leftmost end in the figure, as shown in FIG.
It does not come into contact with any of the contacts on the interchangeable lens side until it comes into contact with the lens. Therefore, there is no chance of accidental contact with other contacts and damage to the circuit. If the intervals between the contacts are equal (d), the contact 37a for the power battery needs to be placed at the leftmost end as shown in Fig. 4 (a), and if the contact 37a for the power supply battery as shown in Fig. 4 (b)
a, 37b as contacts 37c, 37 for control signals.
When placed on the right side of d, the contacts 37a, 3
7b may come into contact with the contacts 9c and 9d during the rotation of the interchangeable lens, and may destroy, for example, a switching element in the drive circuit 20.
If the contacts 37a to 37f on the camera body side and the contacts 9a to 9f on the interchangeable lens side are both arranged left and right opposite to those in Fig. 4A as shown in Fig. 4C, then the power supply battery contacts 37a and 37b first make contact with the contacts 9f and 9e for the aperture information circuit, damaging the circuit elements in this circuit, and when the rotation progresses further and contact with the contacts 9d and 9c of the drive circuit 20. This will destroy the circuit element.
上記の第４図ロ及び第４図ハの如き電源電池用
接触子３７ａ，３７ｂと他の接触子３７ｃ〜３７
ｆとの配置の相違による欠点を改善する本発明の
実施例を以下に説明する。上記欠点を改善するた
めには、第５図イ及び第５図ロのように電源電池
用接触子３７ａ，３７ｂの間隔d′を他の接触子間
の間隔ｄとは異なるようにし、例えばd′＝ｄ±
ｄ／２のようにすれば、接触子３７ａと接触子３７
ｂとは交互に回転移動中の交換レンズ側の接触子
のいずれかに接し、同時に接触子３７ａと接触子
３７ｂとが、交換レンズ側の接触子と接触するこ
とはなく、交換レンズの回転の終期に、はじめて
電源電池用接触子３７ａと３７ｂとが同時に所定
の駆動回路用接触子９ａ，９ｂと接触導通して電
源ラインが形成される。従つて、交換レンズの回
転中は接触子３７ａが交換レンズ側の接触子に接
触しても電気が流れないので、回路が破壊される
ようなことはない。第６図は各接触子間の間隔を
それぞれ異ならしめたものであり、交換レンズ側
接触子９ａ〜９ｆの内の２個の接触子がカメラ本
体側の接触子３７ａ〜３７ｆの内の２個の接触子
に装着途中で同時に接触しないようにしたもので
ある。各接触子の間隔は例えば、３７ａ−３７ｂ
の間隔d1＝６、３７ｂ−３７ｃの間隔d2＝８、３
７ｃ−３７ｄの間隔d3＝10、３７ｄ−３７ｅの間
隔d4＝12、３７ｅ−３７ｆの間隔d5＝16の割合に
すればよい。 Power battery contacts 37a, 37b and other contacts 37c to 37 as shown in FIG. 4B and FIG. 4C above.
Embodiments of the present invention that improve the drawbacks due to the difference in arrangement with f will be described below. In order to improve the above-mentioned drawbacks, as shown in FIG. 5A and FIG. '=d±
d/2, the contacts 37a and 37b alternately contact one of the contacts on the interchangeable lens side that is rotating, and at the same time, the contacts 37a and 37b contact the interchangeable lens side. The contactors 37a and 37b for the power battery are simultaneously connected to the contactors 9a and 9b for the drive circuit at the end of the rotation of the interchangeable lens without making contact with the contacts on the side, and a power supply line is formed. be done. Therefore, even if the contactor 37a contacts the contactor on the interchangeable lens side while the interchangeable lens is rotating, no electricity will flow, so the circuit will not be destroyed. In Fig. 6, the spacing between the contacts is different, and two of the contacts 9a to 9f on the interchangeable lens side are two of the contacts 37a to 37f on the camera body side. This prevents the contacts from coming into contact with each other at the same time during installation. The spacing between each contact is, for example, 37a-37b
Distance d 1 = 6, Distance d 2 between 37b-37c = 8, 3
The ratio may be such that the interval d 3 between 7c and 37d is 10, the interval d 4 between 37d and 37e is 12, and the interval d 5 between 37e and 37f is 16.
以上、本発明によれば、電源用接触子３７ａが
交換レンズ側の電気装置の信号用コネクター接触
子９ｃ〜９ｆと干渉しないように構成されている
ので、交換レンズの装着時に電気装置が破壊した
り誤動作をする恐れがなく、操作性、安全性共に
向上する。またスイツチなどの付加的装置を必要
としないのでコスト的に有利であり、構造的にも
単純で故障の少ない、小型コネクター装置を実現
することができる。 As described above, according to the present invention, the power supply contact 37a is configured so as not to interfere with the signal connector contacts 9c to 9f of the electrical device on the interchangeable lens side, so that the electrical device will not be destroyed when the interchangeable lens is attached. There is no risk of malfunction or malfunction, improving both operability and safety. Furthermore, since no additional devices such as a switch are required, it is advantageous in terms of cost, and it is possible to realize a compact connector device that is structurally simple and has fewer failures.
本発明はレンズ装着時にカメラ側の電源に接続
された２つの接触子上をレンズ側の複数の接触子
が摺動するよう各接触子を配置しても、カメラ側
の電源がレンズ側の接触子を介して不用意にレン
ズ側回路へ接続してしまうことがない。 The present invention allows the power supply on the camera side to be connected to the power supply on the lens side even if each contactor is arranged so that each contactor on the lens side slides on two contacts connected to the power supply on the camera side when the lens is attached. There is no possibility of inadvertent connection to the lens side circuit via the child.
第１図は本発明の前提となる例の交換レンズの
斜視図、第２図は第１図の交換レンズをカメラ本
体と結合した場合の断面図、第３図は第２図のコ
ネクター部の概略図、第４図はコネクター部の電
源接続の説明図、第５図は本発明の実施例を示す
説明図、第６図は本発明の他の実施例を示す説明
図である。
Ａ……交換レンズ、Ｂ……カメラ本体、９ａ〜
９ｆ……交換レンズ側コネクター接触子、２０，
２１……交換レンズ側電気回路、３１，３８……
カメラ本体側電気回路、３７ａ……電源用コネク
ター接触子、３７ａ〜３７ｆ……カメラ本体側コ
ネクター接触子、４１……電源。
Fig. 1 is a perspective view of an interchangeable lens as an example of the premise of the present invention, Fig. 2 is a sectional view of the interchangeable lens shown in Fig. 1 combined with a camera body, and Fig. 3 is a view of the connector section of Fig. 2. 4 is an explanatory diagram of the power connection of the connector portion, FIG. 5 is an explanatory diagram showing an embodiment of the present invention, and FIG. 6 is an explanatory diagram showing another embodiment of the present invention. A...Interchangeable lens, B...Camera body, 9a~
9f...Interchangeable lens side connector contact, 20,
21... Interchangeable lens side electric circuit, 31, 38...
Camera body side electrical circuit, 37a...power supply connector contact, 37a to 37f...camera body side connector contact, 41...power supply.
Claims (1)
接触子３７ａと、前記電源の陰極側に接続する第
２接触子３７ｂと、カメラ本体内の別の電気回路
に接続する複数の他の接触子３７ｃ〜３７ｆとを
カメラ本体側マウント部３４に備えたカメラ本体
Ｂに対して、レンズ側マウント部を回転操作する
ことにより装着可能であり、且つ装着完了時に前
記第１接触子に接触する陽極側接触子９ａと前記
第２接触子に接触する陰極側接触子９ｂと前記他
の接触子に接触するレンズ側の他の接触子９ｃ〜
９ｆとを前記レンズ側マウント部に有する交換レ
ンズにおいて、 前記レンズ側マウント部の各接触子９ａ〜９ｆ
がそれぞれ前記カメラ本体側の各接触子に接触す
る如く前記レンズ側マウント部の各接触子９ａ〜
９ｆを付勢する付勢部材（７ａ，７ｂ等）を有す
るとともに、 前記レンズ側マウント部の各接触子９ａ〜９ｆ
は、レンズ光軸に垂直な平面内の同一円周上に配
置され、且つ回転操作時に前記第１及び第２の各
接触子３７ａ，３７ｂ上をそれぞれ複数の接触子
が摺動する如く配置され、 前記陽極側及び陰極側接触子９ａ，９ｂの間隔
は、前記第１及び第２接触子３７ａ，３７ｂの間
隔d′と等しく、また レンズ側マウント部の前記他の接触子同士の任
意の２つの間隔、並びレンズ側マウント部の前記
他の接触子の任意の１つと前記陽極側或いは陰極
側接触子９ａ，９ｂとの間隔は、これらレンズ側
マウント部の接触子が前記第１及び第２の接触子
に同時に接触しないように、前記第１及び第２接
触子３７ａ，３７ｂの間隔d′とは相違する間隔に
設定されていることを特徴とする交換レンズ。 ２ 特許請求の範囲第１項に記載の交換レンズに
おいて、 前記陽極側接触子９ａと陰極側接触子９ｂとの
間隔d′は、前記レンズ側マウント部の前記他の接
触子同士の間隔ｄ、並びにレンズ側マウント部の
前記他の接触子の１つと前記陽極側或いは陰極側
接触子９ａ，９ｂとの間隔ｄのほぼ1.5倍である
ことを特徴とする交換レンズ。[Claims] 1. A first device connected to the anode side of the power source inside the camera body.
The camera body side mount section 34 includes a contact 37a, a second contact 37b connected to the cathode side of the power source, and a plurality of other contacts 37c to 37f connected to another electric circuit in the camera body. The anode side contact 9a contacts the first contact and the cathode contacts the second contact. Another contact 9c on the lens side that contacts the side contact 9b and the other contact 9c~
9f on the lens side mount portion, each contact 9a to 9f on the lens side mount portion
The contacts 9a to 9a on the lens side mount portion are in contact with the contacts on the camera body side, respectively.
It has a biasing member (7a, 7b, etc.) that biases 9f, and each contactor 9a to 9f of the lens side mount part.
are arranged on the same circumference in a plane perpendicular to the optical axis of the lens, and arranged so that a plurality of contacts slide on each of the first and second contacts 37a and 37b during rotation operation. , the spacing between the anode side and cathode side contacts 9a, 9b is equal to the spacing d' between the first and second contacts 37a, 37b, and any two of the other contacts on the lens side mount section and the distance between any one of the other contacts of the lens side mount section and the anode side or cathode side contacts 9a, 9b, so that these contacts of the lens side mount section are not connected to the first and second contacts. An interchangeable lens characterized in that the distance between the first and second contactors 37a and 37b is set to be different from the distance d' so as not to contact the first and second contactors at the same time. 2. In the interchangeable lens according to claim 1, the distance d' between the anode side contact 9a and the cathode side contact 9b is equal to the distance d between the other contacts of the lens side mount section, Also, an interchangeable lens characterized in that the distance d between one of the other contacts of the lens side mount portion and the anode side or cathode side contacts 9a, 9b is approximately 1.5 times.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18197881A JPS5883824A (en) | 1981-11-13 | 1981-11-13 | Electric connector device for interchangeable lens camera |
| US06/439,534 US4464034A (en) | 1981-11-13 | 1982-11-05 | Device for electrically connecting lens and camera |
| DE19823241957 DE3241957A1 (en) | 1981-11-13 | 1982-11-12 | DEVICE FOR ELECTRICALLY CONNECTING LENS AND CAMERA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18197881A JPS5883824A (en) | 1981-11-13 | 1981-11-13 | Electric connector device for interchangeable lens camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5883824A JPS5883824A (en) | 1983-05-19 |
| JPH0411850B2 true JPH0411850B2 (en) | 1992-03-02 |
Family
ID=16110182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18197881A Granted JPS5883824A (en) | 1981-11-13 | 1981-11-13 | Electric connector device for interchangeable lens camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5883824A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053912A (en) * | 1983-09-02 | 1985-03-28 | Minolta Camera Co Ltd | Mount device for attaching and detaching lens of camera and interchangeable lens |
| JPS6189821U (en) * | 1984-11-19 | 1986-06-11 | ||
| GB2187856B (en) * | 1986-02-17 | 1990-10-03 | Canon Kk | Mount device |
| JPS6331048Y2 (en) * | 1986-02-17 | 1988-08-19 | ||
| JPS62195633A (en) * | 1986-02-24 | 1987-08-28 | Canon Inc | Connector for connecting electric circuit in switching lens type camera |
| JPS63166352A (en) * | 1986-12-27 | 1988-07-09 | Canon Inc | Communication control equipment |
| US6369853B1 (en) | 1997-11-13 | 2002-04-09 | Foveon, Inc. | Intra-pixel frame storage element, array, and electronic shutter method suitable for electronic still camera applications |
| US6452633B1 (en) | 1998-02-26 | 2002-09-17 | Foveon, Inc. | Exposure control in electronic cameras by detecting overflow from active pixels |
| US6853404B1 (en) | 1998-05-11 | 2005-02-08 | Foveon, Inc. | Electronic view camera for tripod mounting |
| US6410899B1 (en) | 1998-06-17 | 2002-06-25 | Foveon, Inc. | Active pixel sensor with bootstrap amplification and reduced leakage during readout |
| US6697114B1 (en) | 1999-08-13 | 2004-02-24 | Foveon, Inc. | Triple slope pixel sensor and arry |
| US6809768B1 (en) | 2000-02-14 | 2004-10-26 | Foveon, Inc. | Double slope pixel sensor and array |
| US6882367B1 (en) | 2000-02-29 | 2005-04-19 | Foveon, Inc. | High-sensitivity storage pixel sensor having auto-exposure detection |
| JP2007101656A (en) | 2005-09-30 | 2007-04-19 | Fujifilm Corp | Electronic device system and electronic device |
| JP5701267B2 (en) * | 2012-07-20 | 2015-04-15 | キヤノン株式会社 | Cameras and camera accessories |
-
1981
- 1981-11-13 JP JP18197881A patent/JPS5883824A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5883824A (en) | 1983-05-19 |
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