JP5407219B2

JP5407219B2 - Camera system and camera

Info

Publication number: JP5407219B2
Application number: JP2008215335A
Authority: JP
Inventors: 徳康小谷
Original assignee: Nikon Corp
Current assignee: Nikon Corp
Priority date: 2008-08-25
Filing date: 2008-08-25
Publication date: 2014-02-05
Anticipated expiration: 2028-08-25
Also published as: JP2010049174A

Description

本発明は、カメラシステム及びカメラに関するものである。 The present invention relates to a camera system and a camera.

従来、レンズ交換式カメラでは、バヨネット方式によってカメラボディに交換レンズを装着している。そして、カメラのマウント部分には、カメラボディと交換レンズとの間のがたつきを防止するための付勢ばねと、レンズ鏡筒との通信を行うための接点が設けられている（例えば、特許文献１参照）。
特公平７−３４０５４１号公報 Conventionally, in an interchangeable lens camera, an interchangeable lens is attached to the camera body by a bayonet method. The mounting portion of the camera is provided with a biasing spring for preventing rattling between the camera body and the interchangeable lens and a contact for communicating with the lens barrel (for example, Patent Document 1).
Japanese Examined Patent Publication No. 7-340541

しかし、カメラのマウント部分に付勢ばね及び接点を配置するためには、ある程度のスペースが必要であり、また、構造も複雑となる。 However, in order to arrange the biasing spring and the contact point on the mount portion of the camera, a certain amount of space is required and the structure becomes complicated.

本発明の課題は、カメラのマウント部分の構造をより簡単にするとともにスペース効率が向上したカメラシステム及びカメラを提供することである。 An object of the present invention is to provide a camera system and a camera in which the structure of the mount portion of the camera is simplified and the space efficiency is improved.

本発明は、以下のような解決手段により前記課題を解決する。 The present invention is, that solve the problems by following such a solution.

請求項１に記載の発明は、カメラに装着可能であり、一方の端部にレンズ側マウント部を備えるレンズ鏡筒と、前記レンズ側マウント部に対応し、前記レンズ鏡筒を装着するカメラ側マウント部を備え、前記レンズ鏡筒がバヨネット方式で装着されるカメラと、を備えるカメラシステムであって、前記カメラ側マウント部は、光軸を中心とした円形の開口部と、前記開口部から前記光軸に向けて延びる方向に形成されたカメラ側爪部と、前記光軸方向に沿って配置されて導電性を有する凸部を有し、前記凸部を前記レンズ鏡筒側に突出するように付勢し、前記光軸を中心とした円周方向に均等な間隔で複数配置される付勢部材と、を備え、前記レンズ側マウント部は、前記光軸を中心とした円輪状のレンズ側端面と、前記レンズ側端面の外周側から前記光軸から離れる方向に延びるように形成されたレンズ側爪部と、前記レンズ鏡筒が前記カメラに装着されているときに、前記凸部に当接して前記カメラとの通信に用いられるレンズ側接点と、を備え、前記レンズ鏡筒が前記カメラに装着されているときに、前記カメラ側爪部の前記カメラ内部側の面に、前記レンズ側爪部の前記レンズ鏡筒内部側の面が係合し、前記付勢部材は、前記凸部を前記レンズ側接点に当接させて前記レンズ側爪部の前記レンズ鏡筒内部側の面を前記カメラ側爪部の前記カメラ内部側の面に押し付けること、を特徴とするカメラシステムである。
請求項２に記載の発明は、請求項１に記載のカメラシステムであって、前記付勢部材は、前記レンズ鏡筒を前記カメラから離れる方向に付勢すること、を特徴とするカメラシステムである。
請求項３に記載の発明は、請求項１又は２に記載のカメラシステムであって、前記カメラは、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は複数の接点部を有し、前記レンズ鏡筒を前記カメラに対して回転させて装着する際に先頭となる接点部は、正規のレンズ鏡筒か否かの認証に用いられることを特徴とするカメラシステムである。
請求項４に記載の発明は、請求項３に記載のカメラシステムであって、前記円周方向に配置された複数の付勢部材は、均等な圧力でレンズ鏡筒を付勢すること、を特徴とするカメラシステムである。
請求項５に記載の発明は、請求項３又は４に記載のカメラシステムであって、前記円周方向に複数配置された前記付勢部材のうちの２以上が前記カメラ側接点をそれぞれ含み、前記付勢部材毎に、その上に設けられている前記カメラ側接点の機能が異なること、を特徴とするカメラシステムである。
請求項６に記載の発明は、請求項５に記載のカメラシステムであって、前記カメラ側接点の数が前記付勢部材間で異なるときには、少ない数の方の付勢力を他方よりも上げること、を特徴とするカメラシステムである。
請求項７に記載の発明は、請求項１〜６のいずれか１項に記載のカメラシステムであって、前記カメラは、カメラ側マウント部において光軸を中心とした円輪状のカメラ側端面を備え、前記カメラ側爪部は、前記カメラ側端面の外周側と連続するとともに光軸に沿って延びる面から、前記カメラ側端面と平行に光軸に向かって延び、該カメラ側端面の外周部との間に間隙を形成し、前記付勢部材は、前記カメラ側端面における該間隙が設けられている部分に配置されていること、を特徴とするカメラシステムである。
請求項８に記載の発明は、請求項１〜６のいずれか１項に記載のカメラシステムであって、前記カメラは、カメラ側マウント部において光軸を中心とした円輪状のカメラ側端面を備え、前記カメラ側爪部は、前記カメラ側端面の外周側と連続するとともに光軸に沿って延びる面から、前記カメラ側端面と平行に光軸に向かって延び、該カメラ側端面の外周部との間に間隙を形成し、前記付勢部材は、前記カメラ側端面における前記間隙が設けられている部分以外の部分に配置されていること、を特徴とするカメラシステムである。
請求項９に記載の発明は、請求項１〜８のいずれか１項に記載のカメラシステムであって、前記カメラは、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は、一端がカメラ側に固定されたコイルばねの他端が接続されたピンであること、を特徴とするカメラシステムである。
請求項１０に記載の発明は、請求項１〜８のいずれか１項に記載のカメラシステムであって、前記カメラは、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は、板ばねであること、を特徴とするカメラシステムである。
請求項１１に記載の発明は、一方の端部に、光軸を中心とした円輪状のレンズ側端面と、前記レンズ側端面の外周側から前記光軸から離れる方向に延びるように形成されたレンズ側爪部と、カメラに装着されているときに、カメラとの通信に用いられるレンズ側接点とを有するレンズ側マウント部を備えるレンズ鏡筒を装着可能であり、前記レンズ側マウント部に対応し、前記レンズ鏡筒を装着するカメラ側マウント部を備え、前記レンズ鏡筒とバヨネット方式で装着されるカメラであって、前記カメラ側マウント部は、前記光軸を中心とした円形の開口部と、前記開口部から前記光軸に向けて延びる方向に形成されたカメラ側爪部と、前記光軸方向に沿って配置されて導電性を有する凸部を有し、前記凸部を前記レンズ鏡筒側に突出するように付勢し、前記光軸を中心とした円周方向に均等な間隔で複数配置される付勢部材と、を備え、前記レンズ鏡筒が前記カメラに装着されているときに、前記カメラ側爪部の前記カメラ内部側の面に、前記レンズ側爪部の前記レンズ鏡筒内部側の面が係合し、前記付勢部材は、前記凸部を前記レンズ側接点に当接させて前記レンズ側爪部の前記レンズ鏡筒内部側の面を前記カメラ側爪部の前記カメラ内部側の面に押し付けること、を特徴とするカメラである。
請求項１２に記載の発明は、請求項１１に記載のカメラであって、前記付勢部材は、前記レンズ鏡筒を前記カメラから離れる方向に付勢すること、を特徴とするカメラである。
請求項１３に記載の発明は、請求項１１又は１２に記載のカメラであって、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は複数の接点部を有し、前記レンズ鏡筒を前記カメラに対して回転させて装着する際に先頭となる接点部は、正規のレンズ鏡筒か否かの認証に用いられること、を特徴とするカメラである。
請求項１４に記載の発明は、請求項１３に記載のカメラであって、前記円周方向に配置された複数の付勢部材は、均等な圧力でレンズ鏡筒を付勢すること、を特徴とするカメラである。
請求項１５に記載の発明は、請求項１３又は１４に記載のカメラであって、前記円周方向に複数配置された前記付勢部材のうちの２以上が前記カメラ側接点をそれぞれ含み、前記付勢部材毎に、その上に設けられている前記カメラ側接点の機能が異なること、を特徴とするカメラである。
請求項１６に記載の発明は、請求項１５に記載のカメラシステムであって、前記カメラ側接点の数が前記付勢部材間で異なるときには、少ない数の方の付勢力を他方よりも上げること、を特徴とするカメラである。
請求項１７に記載の発明は、請求項１１〜１６のいずれか１項に記載のカメラであって、カメラ側マウント部において光軸を中心とした円輪状のカメラ側端面を備え、前記カメラ側爪部は、前記カメラ側端面の外周側と連続するとともに光軸に沿って延びる面から、前記カメラ側端面と平行に光軸に向かって延び、該カメラ側端面の外周部との間に間隙を形成し、前記付勢部材は、前記カメラ側端面における該間隙が設けられている部分に配置されていること、を特徴とするカメラである。
請求項１８に記載の発明は、請求項１１〜１６のいずれか１項に記載のカメラであって、カメラ側マウント部において光軸を中心とした円輪状のカメラ側端面を備え、前記カメラ側爪部は、前記カメラ側端面の外周側と連続するとともに光軸に沿って延びる面から、前記カメラ側端面と平行に光軸に向かって延び、該カメラ側端面の外周部との間に間隙を形成し、前記付勢部材は、前記カメラ側端面における前記間隙が設けられている部分以外の部分に配置されていること、を特徴とするカメラである。
請求項１９に記載の発明は、請求項１１〜１８のいずれか１項に記載のカメラであって、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は、一端がカメラ側に固定されたコイルばねの他端が接続されたピンであること、を特徴とするカメラである。
請求項２０に記載の発明は、請求項１１〜１８のいずれか１項に記載のカメラであって、前記付勢部材の少なくとも１つであって前記レンズ側接点と当接して前記レンズ鏡筒との通信を可能とするカメラ側接点を有し、前記カメラ側接点は、板ばねであること、を特徴とするカメラである。

According to the first aspect of the present invention, a lens barrel that can be mounted on a camera and has a lens side mount at one end thereof, and a camera side that mounts the lens barrel corresponding to the lens side mount. A camera system comprising: a mount unit, wherein the lens barrel is mounted in a bayonet manner , wherein the camera-side mount unit includes a circular opening centered on the optical axis; It has a camera side claw portion formed in a direction extending toward the optical axis, and a convex portion having conductivity arranged along the optical axis direction, and the convex portion protrudes toward the lens barrel side. urges manner, and a plurality placed urged Ru member at equal intervals in the circumferential direction around the optical axis, the lens-side mount portion, of circular ring shape around the optical axis Lens side end surface and outer periphery of the lens side end surface When the lens barrel is attached to the camera, the lens side claw portion is formed to extend from the optical axis to the direction away from the optical axis, and is used for communication with the camera by contacting the convex portion. A lens-side contact, and when the lens barrel is attached to the camera, the lens-side claw portion on the inner side of the lens barrel on the surface of the camera-side claw portion on the inner side of the camera. surface engages the biasing member, the camera internal side of the surface of the lens barrel inner side of the convex portion is brought into contact with the lens-side contact the lens-side claw portion and the camera-side claw portion The camera system is characterized by being pressed against the surface of the camera.
The invention according to claim 2 is the camera system according to claim 1, wherein the biasing member biases the lens barrel in a direction away from the camera. is there.
A third aspect of the present invention is the camera system according to the first or second aspect, wherein the camera is at least one of the urging members and abuts on the lens side contact so as to contact the lens barrel. A camera-side contact that enables communication with the camera-side contact, the camera-side contact has a plurality of contact portions, and the contact portion that becomes the head when the lens barrel is rotated and attached to the camera is The camera system is used for authentication as to whether or not a regular lens barrel is used.
A fourth aspect of the present invention is the camera system according to the third aspect, wherein the plurality of urging members arranged in the circumferential direction urge the lens barrel with equal pressure. This is a featured camera system.
Invention of Claim 5 is a camera system of Claim 3 or 4, Comprising: Two or more of the said urging members arrange | positioned in multiple numbers in the said circumferential direction contain the said camera side contact, respectively. The camera system is characterized in that the function of the camera-side contact provided on each biasing member is different.
The invention according to claim 6 is the camera system according to claim 5, wherein when the number of the contact points on the camera side is different between the biasing members, the biasing force of the smaller number is increased more than the other. The camera system characterized by the above.
A seventh aspect of the present invention is the camera system according to any one of the first to sixth aspects, wherein the camera has an annular camera-side end surface centered on the optical axis in the camera-side mount portion. The camera side claw portion extends from the surface extending along the optical axis to the optical axis in parallel to the camera side end surface and extending from the surface extending from the camera side end surface to the optical axis. And the biasing member is disposed in a portion of the camera side end surface where the gap is provided.
The invention according to claim 8 is the camera system according to any one of claims 1 to 6, wherein the camera has an annular camera-side end surface centered on the optical axis in the camera-side mount portion. The camera side claw portion extends from the surface extending along the optical axis to the optical axis in parallel to the camera side end surface and extending from the surface extending from the camera side end surface to the optical axis. And the biasing member is disposed in a portion of the camera side end surface other than the portion in which the gap is provided.
A ninth aspect of the present invention is the camera system according to any one of the first to eighth aspects, wherein the camera is at least one of the urging members and abuts on the lens side contact. A camera-side contact that enables communication with the lens barrel, and the camera-side contact is a pin to which the other end of a coil spring having one end fixed to the camera is connected. It is a camera system.
A tenth aspect of the present invention is the camera system according to any one of the first to eighth aspects, wherein the camera is at least one of the urging members and abuts on the lens side contact. The camera system has a camera-side contact that enables communication with the lens barrel, and the camera-side contact is a leaf spring.
The invention according to claim 11 is formed at one end so as to extend in a direction away from the optical axis from an outer peripheral side of the lens-side end surface, and an annular lens-side end surface centered on the optical axis. A lens barrel having a lens side mount portion having a lens side claw portion and a lens side contact point used for communication with the camera when attached to the camera can be attached and corresponds to the lens side mount portion. A camera-side mount portion for mounting the lens barrel, the camera-side mount portion being mounted in a bayonet manner with the lens barrel , wherein the camera-side mount portion is a circular opening centered on the optical axis A camera-side claw portion formed in a direction extending from the opening portion toward the optical axis, and a conductive convex portion disposed along the optical axis direction, wherein the convex portion is the lens. It protrudes to the lens barrel side Biased in, and a biasing member Ru are more evenly spaced in the circumferential direction around the optical axis, when the lens barrel is mounted to the camera, the camera-side said camera internal side surface of the claw portion, the lens-side claw portion and the lens barrel inner side surface engages the said biasing member, said by abutting the convex portion to the lens side contact The camera is characterized in that a surface on the lens barrel inner side of the lens side claw portion is pressed against a surface on the camera inner side of the camera side claw portion.
A twelfth aspect of the present invention is the camera according to the eleventh aspect, wherein the urging member urges the lens barrel in a direction away from the camera.
A thirteenth aspect of the present invention is the camera according to the eleventh or twelfth aspect of the present invention, which is at least one of the urging members and abuts on the lens side contact to enable communication with the lens barrel. The camera side contact has a plurality of contact portions, and the contact portion that becomes the head when the lens barrel is rotated and attached to the camera is a regular lens mirror. The camera is characterized in that it is used for authentication of whether or not it is a cylinder.
The invention described in claim 14 is the camera according to claim 13, wherein the plurality of biasing members arranged in the circumferential direction bias the lens barrel with an equal pressure. It is a camera.
The invention according to claim 15 is the camera according to claim 13 or 14, wherein two or more of the biasing members arranged in the circumferential direction each include the camera side contact, The camera is characterized in that the function of the camera-side contact provided on each biasing member is different.
According to a sixteenth aspect of the present invention, in the camera system according to the fifteenth aspect, when the number of the camera side contacts is different between the urging members, the urging force of the smaller number is increased more than the other. The camera is characterized by.
The invention according to claim 17 is the camera according to any one of claims 11 to 16, wherein the camera side mount portion includes an annular camera side end surface centering on the optical axis, and the camera side The claw portion extends from the surface continuous with the outer peripheral side of the camera side end surface and extending along the optical axis toward the optical axis in parallel with the camera side end surface, and is spaced from the outer peripheral portion of the camera side end surface. And the urging member is disposed in a portion of the camera side end surface where the gap is provided.
The invention according to claim 18 is the camera according to any one of claims 11 to 16, wherein the camera side mount portion includes an annular camera side end surface centered on the optical axis, and the camera side The claw portion extends from the surface continuous with the outer peripheral side of the camera side end surface and extending along the optical axis toward the optical axis in parallel with the camera side end surface, and is spaced from the outer peripheral portion of the camera side end surface. The urging member is disposed in a portion other than the portion provided with the gap on the camera side end surface.
A nineteenth aspect of the present invention is the camera according to any one of the eleventh to eleventh aspects, wherein the lens barrel is at least one of the urging members and is in contact with the lens side contact. The camera-side contact is a pin connected to the other end of a coil spring whose one end is fixed to the camera side.
The invention according to claim 20 is the camera according to any one of claims 11 to 18, wherein the lens barrel is at least one of the urging members and abuts on the lens side contact. A camera-side contact that enables communication with the camera, and the camera-side contact is a leaf spring.

本発明によれば、カメラのマウント部分の構造をより簡単にするとともにスペース効率が向上したカメラシステム及びカメラを提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the camera system and camera which improved the space efficiency while simplifying the structure of the mount part of a camera can be provided.

以下、図面等を参照して、本発明の実施形態について説明する。なお、以下に示す図において、説明と理解を容易にするために、適宜ＸＹＺ直交座標系を設けた。この座標系では、撮影者が光軸Ａを水平として横長の画像を撮影する場合のカメラの位置（以下、正位置という）において撮影者から見て左側に向かう方向をＸプラス方向とする。また、正位置において上側に向かう方向をＹプラス方向とする。さらに、正位置において被写体に向かう方向をＺプラス方向とする。 Embodiments of the present invention will be described below with reference to the drawings. In the drawings shown below, an XYZ orthogonal coordinate system is provided as appropriate for ease of explanation and understanding. In this coordinate system, the direction toward the left side as viewed from the photographer at the position of the camera when the photographer shoots a horizontally long image with the optical axis A being horizontal (hereinafter referred to as a normal position) is defined as the X plus direction. Further, the direction toward the upper side in the normal position is defined as the Y plus direction. Further, the direction toward the subject at the normal position is defined as the Z plus direction.

（第１実施形態）
図１は、第１実施形態におけるレンズ交換式のカメラシステム１００を示す。カメラシステム１００は、カメラ１と、カメラ１に対して着脱自在なレンズ鏡筒２とを備える。 (First embodiment)
FIG. 1 shows a lens-interchangeable camera system 100 according to the first embodiment. The camera system 100 includes a camera 1 and a lens barrel 2 that is detachable from the camera 1.

カメラ１は筐体３、カメラ側マウント部４、撮像ユニット５、表示装置６等を備えている。筐体３はカメラ１の外側を覆う部分であり、その外面にはレリーズスイッチ７や図示しない電源スイッチ等の各種操作スイッチが設けられている。 The camera 1 includes a housing 3, a camera side mount unit 4, an imaging unit 5, a display device 6, and the like. The housing 3 is a portion that covers the outside of the camera 1, and various operation switches such as a release switch 7 and a power switch (not shown) are provided on the outer surface thereof.

撮像ユニット５は撮像素子５ａと、撮像素子５ａよりも被写体側に位置する光学ローパスフィルタ５ｂとを備えている。撮像素子５ａはレンズ鏡筒２を介して被写体が露光されることにより被写体光を電気信号に変換して出力する。光学ローパスフィルタ５ｂは撮像素子５ａの入射面に対向して配置されることにより、撮像素子の結像面に結像される被写体像にモアレ等が発生することを防止する。 The imaging unit 5 includes an imaging element 5a and an optical low-pass filter 5b located on the subject side of the imaging element 5a. The imaging element 5a converts subject light into an electrical signal and outputs it when the subject is exposed through the lens barrel 2. The optical low-pass filter 5b is disposed to face the incident surface of the image sensor 5a, thereby preventing the occurrence of moire or the like in the subject image formed on the image formation surface of the image sensor.

表示装置６は筐体３の背面部に表示画面が露出して設けられた液晶パネルを含む。表示装置６は撮影済みの画像や各種設定を行うためのメニュー画面が表示可能となっている。 The display device 6 includes a liquid crystal panel provided with a display screen exposed on the back surface of the housing 3. The display device 6 can display a captured image and a menu screen for performing various settings.

カメラ側マウント部４は、レンズ鏡筒２が着脱自在に接続される部分であり、筐体３の正面側（Ｚプラス側）に設けられている。カメラ側マウント部４は、レンズ鏡筒２の装着に用いられるカメラ側爪部１１を備えている。カメラ側爪部１１はレンズ鏡筒２に設けられているレンズ側爪部１２と係合してレンズ鏡筒２との装着状態を保持する。 The camera side mount portion 4 is a portion to which the lens barrel 2 is detachably connected, and is provided on the front side (Z plus side) of the housing 3. The camera-side mount unit 4 includes a camera-side claw unit 11 that is used for mounting the lens barrel 2. The camera-side claw portion 11 is engaged with the lens-side claw portion 12 provided in the lens barrel 2 and holds the mounting state with the lens barrel 2.

レンズ鏡筒２は、撮影レンズ２０を保持するレンズ保持枠２１と、レンズ側マウント部２２と、レンズ側接点２３とを備えている。撮影レンズ２０は複数のレンズ群を含み（図中１つのレンズのみ図示）、これらのレンズ群が光軸Ａ方向に移動し、撮影画角の変更やフォーカシング動作が行われる。 The lens barrel 2 includes a lens holding frame 21 that holds the photographing lens 20, a lens side mount portion 22, and a lens side contact 23. The photographing lens 20 includes a plurality of lens groups (only one lens is shown in the figure), and these lens groups move in the direction of the optical axis A to change the photographing angle of view and perform a focusing operation.

レンズ側マウント部２２はカメラ１への装着方向先端部に設けられており、カメラ側爪部１１と係合するレンズ側爪部１２を有している。レンズ側爪部１２の近傍には、レンズ側接点２３が設けられている。レンズ側接点２３は、後述するカメラ側接点としても機能する付勢部材３０が接触することにより付勢部材３０と電気的に接続されるものであり、付勢部材３０との接続によってレンズ鏡筒２とカメラ１との間で通信やデータの送受信が可能となり、さらにはカメラ１からの電力供給が可能となる。 The lens side mount portion 22 is provided at the front end portion of the camera 1 in the mounting direction, and has a lens side claw portion 12 that engages with the camera side claw portion 11. A lens side contact 23 is provided in the vicinity of the lens side claw portion 12. The lens-side contact 23 is electrically connected to the urging member 30 when a urging member 30 that also functions as a camera-side contact, which will be described later, comes into contact therewith. 2 and the camera 1 can communicate and transmit / receive data, and further, power can be supplied from the camera 1.

レンズ鏡筒２はバヨネット方式によってカメラ１に装着される。図２はカメラ側マウント部４のカメラ側端面１５、図３はレンズ側マウント部２２のレンズ側端面１６示している。カメラ側端面１５は、光軸Ａを中心とした円輪状となっている。 The lens barrel 2 is attached to the camera 1 by a bayonet method. FIG. 2 shows the camera side end face 15 of the camera side mount portion 4, and FIG. 3 shows the lens side end face 16 of the lens side mount portion 22. The camera side end face 15 has an annular shape with the optical axis A as the center.

３つのカメラ側爪部１１（１１ａ，１１ｂ，１１ｃ）が、カメラ側マウント部４において、光軸Ａを中心とした円周方向に均等な間隔で形成されている。このカメラ側爪部１１ａ，１１ｂ，１１ｃは、カメラ側端面１５の外周側から光軸に沿って延びる側面１７より、カメラ側端面１５と平行に光軸Ａに向かって延びてカメラ側端面１５の外周部との間に間隙１４を形成している。この間隙１４には、レンズ側爪部１２が挿入可能となっている。 Three camera side claw portions 11 (11a, 11b, 11c) are formed at equal intervals in the circumferential direction around the optical axis A in the camera side mount portion 4. The camera side claw portions 11 a, 11 b, and 11 c extend from the side surface 17 extending along the optical axis from the outer peripheral side of the camera side end surface 15 toward the optical axis A in parallel with the camera side end surface 15. A gap 14 is formed between the outer periphery. The lens side claw portion 12 can be inserted into the gap 14.

レンズ側マウント部２２は図３に示すように、光軸Ａを中心とした円輪状となっており、その外周部分には、３つのレンズ側爪部１２（１２ａ，１２ｂ，１２ｃ）が突出するように形成されている。レンズ側爪部１２ａ，１２ｂ，１２ｃはカメラ側爪部１１ａ，１１ｂ，１１ｃと同様に円周方向に均等に配置されている。レンズ側マウント部２２をカメラ側マウント部４に突き合わせ、この突き合わせ状態でレンズ鏡筒２を回転させることにより、レンズ側爪部１２ａ，１２ｂ，１２ｃがカメラ側マウント部４におけるカメラ側端面１５とカメラ側爪部１１ａ，１１ｂ，１１ｃとの間の間隙１４に挿入され、この挿入によってレンズ鏡筒２のカメラ１への装着が行われる。そしてカメラ１とレンズ鏡筒２とが装着された際の、カメラ１とレンズ鏡筒２との間のがたつきを防ぐため、付勢部材３０（３０ａ，３０ｂ，３０ｃ）がカメラ側マウント部４に配置されている。 As shown in FIG. 3, the lens side mount portion 22 has an annular shape centered on the optical axis A, and three lens side claw portions 12 (12a, 12b, 12c) protrude from the outer peripheral portion thereof. It is formed as follows. The lens side claw portions 12a, 12b, and 12c are equally arranged in the circumferential direction similarly to the camera side claw portions 11a, 11b, and 11c. The lens side mount portion 22 is abutted against the camera side mount portion 4 and the lens barrel 2 is rotated in this abutted state, whereby the lens side claw portions 12a, 12b, 12c are connected to the camera side end surface 15 and the camera in the camera side mount portion 4. The lens barrel 2 is attached to the camera 1 by being inserted into the gap 14 between the side claw portions 11a, 11b, and 11c. In order to prevent rattling between the camera 1 and the lens barrel 2 when the camera 1 and the lens barrel 2 are mounted, the biasing member 30 (30a, 30b, 30c) is a camera side mount portion. 4 is arranged.

図１に示すように、付勢部材３０は導電性のピン３１と、ピン３１がレンズ鏡筒２の方向に突出するように付勢するコイルばね３２と、ピン３１及びコイルばね３２をカメラ側端面１５に取り付けるための押さえ板３３とを備えて形成されている。このコイルばね３２によって付勢されたピン３１は、間隙１４に挿入されたレンズ側爪部１２ａ，１２ｂ，１２ｃと当接し、レンズ側爪部１２ａ，１２ｂ，１２ｃをカメラ側爪部１１ａ，１１ｂ，１１ｃに押し付ける。これによって、付勢部材３０はレンズ鏡筒２をカメラ１から離れる方向に付勢する。この押し付けによってレンズ側爪部１２ａ，１２ｂ，１２ｃとカメラ側爪部１１ａ，１１ｂ，１１ｃとの間の締結が強まり、カメラ１にレンズ鏡筒２を装着する際のがたつきが防止される。 As shown in FIG. 1, the biasing member 30 includes a conductive pin 31, a coil spring 32 that biases the pin 31 so as to protrude in the direction of the lens barrel 2, and the pin 31 and the coil spring 32 on the camera side. A pressing plate 33 for attaching to the end surface 15 is provided. The pin 31 biased by the coil spring 32 abuts on the lens side claws 12a, 12b, 12c inserted in the gap 14, and the lens side claws 12a, 12b, 12c are brought into contact with the camera side claws 11a, 11b, Press against 11c. As a result, the urging member 30 urges the lens barrel 2 in a direction away from the camera 1. By this pressing, the fastening between the lens side claw portions 12a, 12b, 12c and the camera side claw portions 11a, 11b, 11c is strengthened, and rattling when the lens barrel 2 is attached to the camera 1 is prevented.

付勢部材３０は、上述のレンズ側接点２３ａ，２３ｂ，２３ｃと対応してレンズ側接点２３ａ，２３ｂ，２３ｃと同数設けられる。この実施形態において、図３に示すようにレンズ側接点２３ａ，２３ｂ，２３ｃはそれぞれのレンズ側爪部１２ａ，１２ｂ，１２ｃの内周側に配置され、それぞれのレンズ側接点２３ａ，２３ｂ，２３ｃは４つの接点部が横並び状に集合されて形成されている。一方、図２に示すように、付勢部材３０ａ，３０ｂ，３０ｃは、各カメラ側爪部１１ａ，１１ｂ，１１ｃの内周側に配置されている。そして、各付勢部材３０ａ，３０ｂ，３０ｃは、それぞれのレンズ側接点２３ａ，２３ｂ，２３ｃと同様に４つの接点部が横並び状に集合している。 The urging members 30 are provided in the same number as the lens side contacts 23a, 23b, and 23c corresponding to the lens side contacts 23a, 23b, and 23c described above. In this embodiment, as shown in FIG. 3, the lens side contacts 23a, 23b, 23c are arranged on the inner peripheral side of the respective lens side claws 12a, 12b, 12c, and the respective lens side contacts 23a, 23b, 23c are Four contact portions are formed in a side-by-side manner. On the other hand, as shown in FIG. 2, the urging members 30a, 30b, and 30c are disposed on the inner peripheral side of the camera side claw portions 11a, 11b, and 11c. In each of the urging members 30a, 30b, and 30c, four contact portions are gathered side by side in the same manner as the lens side contacts 23a, 23b, and 23c.

複数の付勢部材３０ａ，３０ｂ，３０ｃは、それぞれが均等な圧力でレンズ鏡筒２を付勢することが好ましい。例えば、接点部の集合体となっている各付勢部材３０ａ，３０ｂ，３０ｃは個々に１０〜１００ｇ／ｃｍ^２程度の均等の圧力でレンズ側接点２３ａ，２３ｂ，２３ｃを押し付けるように設定されている。均等な圧力とすることにより信号の送受信や電力の供給を安定して行うことができる。このため、例えば、カメラ側の接点部の数が付勢部材３０ａ，３０ｂ，３０ｃ間で異なるときには、少ない数の方の付勢力を他方よりも上げて、接点部の集合体としての付勢部材３０ａ，３０ｂ，３０ｃを、均等な圧力でレンズ鏡筒２を付勢するようにする。 The plurality of biasing members 30a, 30b, and 30c preferably bias the lens barrel 2 with equal pressure. For example, the urging members 30a, 30b, and 30c that are aggregates of the contact portions are individually set to press the lens side contacts 23a, 23b, and 23c with an equal pressure of about 10 to 100 g / cm ^2. Yes. By making the pressure uniform, signal transmission and reception and power supply can be performed stably. For this reason, for example, when the number of contact portions on the camera side is different among the biasing members 30a, 30b, 30c, the biasing member as an aggregate of the contact portions is increased by increasing the biasing force of the smaller number than the other. The lens barrel 2 is urged by 30a, 30b and 30c with equal pressure.

それぞれのレンズ側接点２３ａ，２３ｂ，２３ｃの各接点部はレンズ側フレキシブル配線基板２５を介してレンズ側制御基板２６に接続されており、カメラ１側のそれぞれの付勢部材３０ａ，３０ｂ，３０ｃの各ピン３１はカメラ側フレキシブル配線基板２７を介してカメラ側制御基板２８に接続されている。 The contact portions of the lens side contacts 23a, 23b, and 23c are connected to the lens side control board 26 through the lens side flexible wiring board 25, and the respective biasing members 30a, 30b, and 30c on the camera 1 side are connected. Each pin 31 is connected to the camera side control board 28 via the camera side flexible wiring board 27.

ここで、複数のレンズ側接点２３ａ，２３ｂ，２３ｃ及び複数の付勢部材３０ａ，３０ｂ，３０ｃにおいては、以下のような設定が可能である。
（１）レンズ側接点２３ａ及びこれに対応した付勢部材３０ａを電力供給用とし、他のレンズ側接点２３ｂ、２３ｃ及びこれに対応した付勢部材３０ｂ、３０ｃを信号送受信用として区分けする。 Here, in the plurality of lens side contacts 23a, 23b, 23c and the plurality of urging members 30a, 30b, 30c, the following setting is possible.
(1) The lens side contact 23a and the corresponding urging member 30a are classified for power supply, and the other lens side contacts 23b, 23c and the corresponding urging members 30b, 30c are classified for signal transmission / reception.

（２）レンズ側接点２３ａ及びこれに対応した付勢部材３０ａを強電流供給用とし、レンズ側接点２３ｂ及びこれに対応した付勢部材３０ｂを中電流供給用とし、レンズ側接点２３ｃ及びこれに対応した付勢部材３０ｃを弱電流供給用として区分けする。 (2) The lens side contact 23a and the urging member 30a corresponding thereto are used for supplying a high current, and the lens side contact 23b and the urging member 30b corresponding thereto are used for supplying a medium current. The corresponding urging member 30c is classified for weak current supply.

（３）一群となっている複数の付勢部材３０ａ，３０ｂ，３０ｃのうち、１つの群又は２つの群の付勢部材をレンズ側接点２３との電気的な接続を行う構造とし、２つの群又は１つの群の付勢部材を単に付勢用とする。 (3) Of the plurality of urging members 30a, 30b, and 30c that form a group, one group or two groups of urging members are configured to be electrically connected to the lens side contact 23. A group or one group of biasing members is simply used for biasing.

（４）図４は、レンズ鏡筒２をカメラ１に対して回転させて装着させる際の接点同士の接続を示した図である。レンズ鏡筒２をカメラ１に対して回転させて装着させる際、レンズ鏡筒２側のレンズ側接点２３のうちの、装着における回転時に先頭になる接点２３−１と、カメラ１側の複数のピン３１における、回転時に先頭になるピン３１−１とが、まず接触する。例えば、この、先頭になる接点２３−１とピン３１−１との接触によりレンズ鏡筒２が正規のレンズ鏡筒であるか否かを認証する。認証の結果、正規のレンズ鏡筒である場合には、その他のレンズ側接点と付勢部材との接触によってレンズ鏡筒２とカメラ１とを電気的に接続する。正規のレンズ鏡筒でない場合には、その他のレンズ側接点２３ａと付勢部材との電気的な接続を無効とする。これにより、正規のレンズ鏡筒だけが装着されるため、不適格に起因した故障を防止することができる。 (4) FIG. 4 is a diagram showing the connection between the contacts when the lens barrel 2 is rotated and attached to the camera 1. When the lens barrel 2 is rotated and attached to the camera 1, among the lens-side contacts 23 on the lens barrel 2 side, a contact 23-1 that becomes the head during rotation in attachment and a plurality of the camera 1 side First, the pin 31-1 at the top of the pin 31 comes into contact with the pin 31. For example, whether or not the lens barrel 2 is a regular lens barrel is authenticated by the contact between the leading contact 23-1 and the pin 31-1. As a result of authentication, if the lens barrel is a regular lens barrel, the lens barrel 2 and the camera 1 are electrically connected by contact between the other lens side contact and the urging member. If it is not a regular lens barrel, the electrical connection between the other lens side contact 23a and the urging member is invalidated. As a result, since only the regular lens barrel is attached, it is possible to prevent a failure caused by the ineligibility.

以上、本実施形態によると、以下の効果を有する。
（１）コイルばね３２で付勢された導電性のピン３１を有する付勢部材３０ａ，３０ｂ，３０ｃを、レンズ鏡筒２のレンズ側接点２３ａ，２３ｂ，２３ｃに当接させることにより、コイルばね３２の付勢力によってレンズ鏡筒２をカメラ１に対してがたつきなく装着させることができる。それとともにレンズ鏡筒２とカメラ１との電気的な接続も行うことができる。このため、付勢部材と電気接点とを別々に設ける必要がなく、カメラのマウント部分の構造をより簡単にするとともにスペース効率が向上させることができる。
（２）複数の付勢部材３０ａ，３０ｂ，３０ｃの付勢力を均等の圧力とすることによりレンズ鏡筒２とカメラ１との電気的な接続が安定する。 As described above, this embodiment has the following effects.
(1) The biasing members 30a, 30b, and 30c having the conductive pin 31 biased by the coil spring 32 are brought into contact with the lens side contacts 23a, 23b, and 23c of the lens barrel 2, thereby making the coil spring With the urging force of 32, the lens barrel 2 can be attached to the camera 1 without rattling. At the same time, the lens barrel 2 and the camera 1 can be electrically connected. For this reason, it is not necessary to separately provide the urging member and the electrical contact, and the structure of the mount portion of the camera can be simplified and the space efficiency can be improved.
(2) The electrical connection between the lens barrel 2 and the camera 1 is stabilized by making the urging forces of the urging members 30a, 30b, and 30c equal pressures.

（第２実施形態）
図５及び図６は、本発明の第２実施形態を示す。この実施形態では、付勢部材として、全体が導電性金属によって形成された板ばね３６を用いる。板ばね３６は図６に示すように、櫛歯状となっており、複数のばね片３６ｂを有している。それぞれのばね片３６ｂは図５に示すように、先端部分が自由端となってカメラ１の筐体３から突出する方向の弾性力が付与されている。ばね片３６には、凸部３６ａが形成されており、凸部３６ａがカメラ１の筐体３に形成された開口部３７よりレンズ鏡筒２のレンズ側接点２３に臨んでいる。 (Second Embodiment)
5 and 6 show a second embodiment of the present invention. In this embodiment, a plate spring 36 that is entirely formed of a conductive metal is used as the biasing member. As shown in FIG. 6, the leaf spring 36 has a comb-teeth shape and has a plurality of spring pieces 36b. As shown in FIG. 5, each spring piece 36 b is provided with an elastic force in a direction of protruding from the housing 3 of the camera 1 with the tip portion being a free end. A convex portion 36 a is formed on the spring piece 36, and the convex portion 36 a faces the lens side contact 23 of the lens barrel 2 through an opening 37 formed in the housing 3 of the camera 1.

この構造では、レンズ鏡筒２をカメラ１に装着すると、板ばね３６の凸部３６ａがレンズ側爪部１２に弾性的に当接するため、レンズ鏡筒２を付勢することができ、これと同時に、導電性の板ばね３６がレンズ側接点２３に接触するため、レンズ鏡筒２とカメラ１との電気的な接続を行うことができる。 In this structure, when the lens barrel 2 is attached to the camera 1, the convex portion 36a of the leaf spring 36 elastically contacts the lens side claw portion 12, so that the lens barrel 2 can be biased. At the same time, since the conductive leaf spring 36 contacts the lens side contact 23, the lens barrel 2 and the camera 1 can be electrically connected.

（変形形態）
以上、説明した実施形態に限定されることなく、以下に示すような種々の変形や変更が可能であり、それらも本発明の範囲内である。 (Deformation)
The present invention is not limited to the above-described embodiment, and various modifications and changes as described below are possible, and these are also within the scope of the present invention.

（１）図７は、第１実施形態の変形形態を示す。図７の形態においては、付勢部材３０は、カメラ側端面１５における間隙１４が設けられている部分に配置されている。このような取り付け構造とすることにより、レンズ鏡筒２を装着していない状態において、付勢部材３０がカメラ側爪部１１に隠蔽されるため、レンズ鏡筒２を装着しない状態での接点の保護が可能となる。 (1) FIG. 7 shows a modification of the first embodiment. In the form of FIG. 7, the urging member 30 is disposed at a portion where the gap 14 is provided on the camera side end face 15. With such an attachment structure, the biasing member 30 is concealed by the camera-side claw portion 11 when the lens barrel 2 is not attached, so that the contact point when the lens barrel 2 is not attached is hidden. Protection is possible.

（２）図８は、第１実施形態の他の変形形態を示す。図８の形態においては、カメラ側爪部１１の外側に付勢部材３０が取り付けられる。付勢部材３０が筐体３の外側に近い部分に配置されるため、付勢部材３０の取り付けが容易となる。
（３）本実施形態では、レンズ側接点２３を複数の接点部の集合体としたが、これに限らず、単一の接点としてもよい。
（４）本実施形態では、付勢部材３０をピン３１とコイルばね３２との組付構造としたが、導電性のコイルばねだけとしてもよい。
なお、実施形態及び変形形態は、適宜組み合わせて用いることもできるが、詳細な説明は省略する。また、本発明は以上説明した実施形態によって限定されることはない。 (2) FIG. 8 shows another modification of the first embodiment. In the form of FIG. 8, the urging member 30 is attached to the outside of the camera side claw portion 11. Since the urging member 30 is disposed near the outside of the housing 3, the urging member 30 can be easily attached.
(3) In the present embodiment, the lens-side contact 23 is an assembly of a plurality of contact portions, but the present invention is not limited to this and may be a single contact.
(4) In this embodiment, the urging member 30 is an assembly structure of the pin 31 and the coil spring 32. However, only the conductive coil spring may be used.
In addition, although embodiment and a deformation | transformation form can also be used in combination as appropriate, detailed description is abbreviate | omitted. Further, the present invention is not limited to the embodiment described above.

本発明の第１実施形態のカメラシステムを示す断面図である。It is sectional drawing which shows the camera system of 1st Embodiment of this invention. カメラ側マウント部を示す正面図である。It is a front view which shows a camera side mount part. レンズ側マウント部を示す正面図である。It is a front view which shows a lens side mount part. レンズ鏡筒をカメラに対して回転させて装着させる際の接点同士の接続を示した図である。It is the figure which showed the connection of the contacts at the time of rotating and mounting a lens-barrel with respect to a camera. 付勢部材として板ばねを用いた構造を示した第２実施形態の断面図である。It is sectional drawing of 2nd Embodiment which showed the structure using a leaf | plate spring as an urging | biasing member. 第２実施形態の板ばねの概略図である。It is the schematic of the leaf | plate spring of 2nd Embodiment. 第１実施形態の変形形態のマウント部の断面図である。It is sectional drawing of the mount part of the modification of 1st Embodiment. 第１実施形態の別の変形形態のマウント部の断面図である。It is sectional drawing of the mount part of another modification of 1st Embodiment.

Explanation of symbols

１：カメラ、２：レンズ鏡筒、４：カメラ側マウント部、１１：カメラ側爪部、１２：レンズ側爪部、１４：間隙、１５：カメラ側端面、２２：レンズ側マウント部、２３：レンズ側接点、３０：付勢部材、３１：ピン、３５：板ばね 1: camera, 2: lens barrel, 4: camera side mount, 11: camera side claw, 12: lens side claw, 14: gap, 15: camera side end surface, 22: lens side mount, 23: Lens side contact, 30: biasing member, 31: pin, 35: leaf spring

Claims

A lens barrel that can be attached to the camera and has a lens-side mount at one end ;
A camera system corresponding to the lens side mount part, comprising a camera side mount part on which the lens barrel is mounted, and a camera on which the lens barrel is mounted in a bayonet manner ,
The camera side mount is
A circular opening centered on the optical axis;
A camera side claw formed in a direction extending from the opening toward the optical axis;
It has a convex part which is arranged along the optical axis direction and has conductivity, urges the convex part to protrude to the lens barrel side, and is even in the circumferential direction around the optical axis. a biasing member Ru are more arranged in such intervals,
With
The lens side mount part is
An annular lens side end surface centered on the optical axis;
A lens side claw portion formed so as to extend from the outer peripheral side of the lens side end surface in a direction away from the optical axis;
When the lens barrel is mounted on the camera, a lens side contact used for communication with the camera in contact with the convex portion,
With
When the lens barrel is attached to the camera,
A surface of the lens side claw part on the inner side of the lens barrel engages with a surface of the camera side claw part on the inner side of the camera,
It said biasing member, pressing the said convex portion side of the lens barrel inner side of the lens-side contact is abutted against the lens-side claw portions to said camera internal side surface of the camera-side claw portion,
A camera system characterized by

The camera system according to claim 1,
The biasing member biasing the lens barrel in a direction away from the camera;
A camera system characterized by

The camera system according to claim 1 or 2,
The camera has a camera-side contact that is at least one of the urging members and makes contact with the lens-side contact to enable communication with the lens barrel;
The camera side contact has a plurality of contact portions,
When the lens barrel is rotated and attached to the camera, the leading contact portion is used for authentication as to whether or not it is a regular lens barrel.
A camera system characterized by

The camera system according to claim 3,
The plurality of biasing members arranged in the circumferential direction bias the lens barrel with an equal pressure;
A camera system characterized by

The camera system according to claim 3 or 4,
Two or more of the biasing members arranged in the circumferential direction each include the camera side contact,
The function of the camera side contact provided on each biasing member is different,
A camera system characterized by

The camera system according to claim 5,
When the number of the camera side contacts is different between the biasing members, increasing the biasing force of the smaller number than the other;
A camera system characterized by

The camera system according to any one of claims 1 to 6,
The camera includes an annular camera-side end surface centered on the optical axis in the camera-side mount portion,
The camera-side claw portion extends from the surface that is continuous with the outer peripheral side of the camera-side end surface and extends along the optical axis, extends in parallel with the camera-side end surface toward the optical axis, and the outer peripheral portion of the camera-side end surface. Forming a gap between them,
The urging member is disposed in a portion of the camera side end surface where the gap is provided;
A camera system characterized by

The camera system according to any one of claims 1 to 6,
The camera includes an annular camera-side end surface centered on the optical axis in the camera-side mount portion,
The camera-side claw portion extends from the surface that is continuous with the outer peripheral side of the camera-side end surface and extends along the optical axis, extends in parallel with the camera-side end surface toward the optical axis, and the outer peripheral portion of the camera-side end surface. Forming a gap between them,
The biasing member is disposed in a portion other than the portion provided with the gap on the camera side end surface;
A camera system characterized by

The camera system according to any one of claims 1 to 8,
The camera has a camera-side contact that is at least one of the urging members and makes contact with the lens-side contact to enable communication with the lens barrel;
The camera side contact is a pin to which the other end of a coil spring whose one end is fixed to the camera side is connected,
A camera system characterized by

The camera system according to any one of claims 1 to 8,
The camera has a camera-side contact that is at least one of the urging members and makes contact with the lens-side contact to enable communication with the lens barrel;
The camera side contact is a leaf spring;
A camera system characterized by

Mounted on the camera at one end, an annular lens-side end surface centered on the optical axis, a lens-side claw portion formed so as to extend away from the optical axis from the outer peripheral side of the lens-side end surface A lens barrel having a lens-side mount portion having a lens-side contact point used for communication with the camera can be attached, and the lens barrel is attached corresponding to the lens-side mount portion. A camera provided with a camera-side mount , and mounted by the lens barrel and bayonet method ,
The camera side mount is
A circular opening centered on the optical axis;
A camera side claw formed in a direction extending from the opening toward the optical axis;
It has a convex part which is arranged along the optical axis direction and has conductivity, urges the convex part to protrude to the lens barrel side, and is even in the circumferential direction around the optical axis. a biasing member Ru are more arranged in such intervals,
With
When the lens barrel is attached to the camera,
A surface of the lens side claw part on the inner side of the lens barrel engages with a surface of the camera side claw part on the inner side of the camera,
It said biasing member, pressing the said convex portion side of the lens barrel inner side of the lens-side contact is abutted against the lens-side claw portions to said camera internal side surface of the camera-side claw portion,
Camera characterized by.

The camera according to claim 11,
The biasing member biasing the lens barrel in a direction away from the camera;
Camera characterized by.

The camera according to claim 11 or 12,
A camera-side contact that is at least one of the urging members and contacts the lens-side contact to enable communication with the lens barrel;
The camera side contact has a plurality of contact portions,
When the lens barrel is rotated and attached to the camera, the leading contact portion is used for authentication as to whether or not it is a regular lens barrel.
Camera characterized by.

The camera according to claim 13,
The plurality of biasing members arranged in the circumferential direction bias the lens barrel with an equal pressure;
Camera characterized by.

The camera according to claim 13 or 14,
Two or more of the biasing members arranged in the circumferential direction each include the camera side contact,
The function of the camera side contact provided on each biasing member is different,
Camera characterized by.

The camera system according to claim 15,
When the number of the camera side contacts is different between the biasing members, increasing the biasing force of the smaller number than the other;
Camera characterized by.

The camera according to any one of claims 11 to 16,
In the camera side mount part, equipped with an annular camera side end surface centered on the optical axis,
The camera-side claw portion extends from the surface that is continuous with the outer peripheral side of the camera-side end surface and extends along the optical axis, extends in parallel with the camera-side end surface toward the optical axis, and the outer peripheral portion of the camera-side end surface. Forming a gap between them,
The urging member is disposed in a portion of the camera side end surface where the gap is provided;
Camera characterized by.

The camera according to any one of claims 11 to 16,
In the camera side mount part, equipped with an annular camera side end surface centered on the optical axis,
The camera-side claw portion extends from the surface that is continuous with the outer peripheral side of the camera-side end surface and extends along the optical axis, extends in parallel with the camera-side end surface toward the optical axis, and the outer peripheral portion of the camera-side end surface. Forming a gap between them,
The biasing member is disposed in a portion other than the portion provided with the gap on the camera side end surface;
Camera characterized by.

The camera according to any one of claims 11 to 18,
A camera-side contact that is at least one of the urging members and contacts the lens-side contact to enable communication with the lens barrel;
The camera side contact is a pin to which the other end of a coil spring whose one end is fixed to the camera side is connected,
Camera characterized by.

The camera according to any one of claims 11 to 18,
A camera-side contact that is at least one of the urging members and contacts the lens-side contact to enable communication with the lens barrel;
The camera side contact is a leaf spring;
Camera characterized by.