JP6862508B2 - Mount adapter for lens - Google Patents

Description

The present disclosure relates to a lens mount adapter for mounting a lens having a predetermined standard on an image pickup apparatus.

There are image pickup devices with interchangeable lenses to support various shooting scenes. For example, single-lens reflex cameras and mirrorless cameras are typical, but in recent years, new lenses have been added to cameras mounted on smartphones, gimbal cameras, drones, etc., and the originally mounted lenses have different mounting standards. There is an increasing demand for replacement with lenses that have a camera. In such a case, by using a lens mount adapter for the image pickup apparatus, it is possible to add a lens or attach a lens having a different mount standard.

For example, Patent Document 1 (Patent No. 6381778) discloses a mechanism for fitting and fixing a lens mount adapter to a support. The lens mount adapter in this mechanism can fix the lens mount adapter and the support by rotating the locking ring.

Japanese Patent No. 6381778

The lens mount adapter of Patent Document 1 is merely rotated and fixed to the locking ring, and is not provided with a mechanism for fixing the image pickup apparatus. However, with interchangeable lens gimbal cameras, there are cases where you want to shoot with the movement of the gimbal fixed when a heavy lens is attached, or when you want to shoot with a light lens attached and use it as a stabilizer without fixing the gimbal. Therefore, a highly versatile fixing mechanism that can be applied in any case is required. In order to reduce the convenience of carrying the user and the burden on the gimbal, a mechanism that is as lightweight as possible is required, and especially when used for a flying object such as a drone, the weight reduction greatly contributes to energy saving.

Therefore, in view of the above problems, the present disclosure provides a lightweight and highly versatile lens mount adapter that can be easily and stably attached to a fixing device.

In one aspect, in a lens mount adapter having a first mount ring for mounting a lens having a predetermined standard and a second mount ring for mounting on an imaging device, the first mount ring and the first mount ring. At least one of the two mount rings has a fitting for attaching the fixing device.

The first mount ring may have the mating portion.

The fitting portion may include a fitting shape formed substantially uniformly along the outer peripheral side surface of the mount ring having the fitting portion.

The fitting portion may have a substantially V-shaped cross section in the thickness direction of the mount ring having the fitting portion.

The mount ring with the fitting may be made of metal.

The mount ring having the fitting portion may have at least one notch for preventing the fixing device from rotating along the mount ring in the fitted state.

According to the lens mount adapter in the present disclosure, the fixing device can be easily and stably attached by providing the fitting portion on the sturdy mount ring. Further, since the fixing device is easy to remove when not in use, it is lightweight and highly versatile.

The outline of the above invention does not list all the features of the present disclosure. Sub-combinations of these feature groups can also be inventions.

It is a perspective view which shows the mount adapter for a lens in this disclosure. It is a perspective view which shows the mount adapter for a lens in this disclosure. It is a perspective view which shows the fixing device in the state which the arm is closed. It is a perspective view which shows the fixing device in the state which the arm is closed. It is a perspective view which shows the fixing device in the state which the arm is open. It is a perspective view which shows the mount adapter for a lens in the state which a fixing device is attached. (A)-(c) is a cross-sectional view of the first mount ring of the lens mount adapter in the present disclosure in a state where the fixing device is attached.

Hereinafter, the present disclosure will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Not all combinations of features described in the embodiments are essential to the solution of the invention.

The claims, description, drawings, and abstracts include matters that are subject to copyright protection. The copyright holder will not object to any person's reproduction of these documents as long as they appear in the Patent Office files or records. However, in other cases, all copyrights are reserved.

The lens mount adapter according to the present disclosure is equipment for attaching interchangeable lenses of different standards to an imaging device, and the imaging device is, for example, a single-lens reflex camera, a mirrorless camera, a smartphone, a tablet terminal, a gimbal camera, a drone, or the like. The device may have any photographing function.

1 and 2 are views showing an example of the appearance of the lens mount adapter 100 in the present disclosure when observed from different angles. As shown in FIGS. 1 and 2, the lens mount adapter 100 in the present disclosure is attached to a first mount ring 110 and an imaging device (not shown) for mounting an interchangeable lens (not shown) having a predetermined standard. A second mount ring 120 for mounting may be provided.

The first mount ring 110 makes it possible to attach an interchangeable lens having a predetermined mount standard different from the mount standard of the image pickup apparatus main body to the lens mount adapter 100.

The second mount ring 120 has a shape conforming to the mount standard of the image pickup apparatus main body, and enables the lens mount adapter 100 to be attached to the image pickup apparatus main body.

Therefore, the user can attach an interchangeable lens having a mount standard different from its own mount standard to the image pickup apparatus main body by interposing the lens mount adapter 100.

The lens mount adapter 100 locks the first lock mechanism 130 for locking the state in which the interchangeable lens is attached to the first mount ring 110, and the state in which the image pickup apparatus main body is attached to the second mount ring 120. A second locking mechanism 140 for this purpose may be provided.

The first lock mechanism 130 is a button type, and locks the lens mount adapter 100 and the interchangeable lens when the interchangeable lens is rotated by a certain angle in one direction from the fitted state. The first mount ring 110 has a mount pin 111, and when the interchangeable lens is correctly attached, it generates a sound or vibration to make the user recognize the state. With the lens mount adapter 100 and the interchangeable lens locked, the user can push the first locking mechanism 130 to release the lock and rotate the interchangeable lens in the direction opposite to the above direction. Become. The user can remove the interchangeable lens from the lens mount adapter 100 by rotating the interchangeable lens by a certain angle in the direction opposite to the above direction with the lock released.

The second lock mechanism 140 is provided with a lever, and the user can attach the lens mount adapter 100 to the image pickup device or remove the lens mount adapter 100 from the image pickup device by rotating the lever. ..

The first mount ring 110 may have an electric contact 121 for communicating with the interchangeable lens, transmits information on the interchangeable lens to the image pickup device, and transmits a control signal from the image pickup device to the interchangeable lens. can do.

The first mount ring 110 is provided with a fitting portion 112 for mounting the fixing device 200 described later. The fitting portion 112 may include, for example, a fitting shape formed substantially uniformly along the outer peripheral side surface of the first mount ring 110. The fitting shape is preferably, for example, a substantially V-shaped cross section of the first mount ring 110 in the thickness direction, but the present disclosure is not limited to this, and a substantially U-shape, a substantially W-shape, or other complicated shape may be used. It may be there. Further, the fitting shape of the fitting portion 112 is not limited to the groove shape, and may be a convex shape or a combination of a groove shape and a convex shape.

Further, the first mount ring 110 and the second mount ring 120 are preferably made of a sturdy material so as to withstand the attachment of a heavy interchangeable lens. In particular, the first mount ring 110 having the fitting portion 112 is preferably made of metal such as stainless steel or aluminum.

It is preferable that the first mount ring has at least one notch 113 for preventing the fixing device 200, which will be described later, from rotating along the first mount ring in a fitted state. More preferably, one cutout portion 113 (113-1, 113-2) may be provided at a position corresponding to the vertical shooting angle and a position corresponding to the horizontal shooting angle of the imaging device.

It is clear that the specific configuration of the lens mount adapter 100 in the present disclosure is merely an example, and the technical scope of the present disclosure is not limited to this. For example, the lens mount adapter 100 may include any other element that does not contradict the technical idea of the present disclosure, and the specific shape, size, position, movement method, etc. of each element are different from the above. It's okay.

Next, the configuration of the fixing device 200 that can be attached to the lens mount adapter 100 will be described. 3 and 4 are views showing an example of the appearance of the fixing device in a state where the arm is closed when observed from different angles. FIG. 5 is a diagram showing an example of the appearance of the fixing device with the arm open. FIG. 6 is a perspective view showing a lens mount adapter with a fixing device attached.

The fixing device 200 has a main body 210 and an arm 220. The arm 220 is rotatably attached to the main body 210 via a rotating portion 230. The main body 210 is provided with a rotatable screw 211. The arm 220 is provided with a hole 222 at a position where the tip of the screw 211 of the main body 210 faces in the closed state. The main body 210 is provided with screw holes 212 (212-1, 212-2), which can be fixed to a tripod, a pan head or other equipment.

The main body 210 and / or the arm 220 of the fixing device 200 is provided with a fitting portion 221 (221-1, 221-2, 221-3). The fitting portion 221 has a shape of fitting with the fitting portion 112 provided on the first mount ring 110 of the lens mount adapter 100.

For example, when the shape of the fitting portion 112 provided on the first mount ring 110 is groove-shaped, it is preferable that the main body 210 of the fixing device 200 and / or the fitting portion 221 of the arm 220 is convex. .. On the contrary, when the shape of the fitting portion 112 provided on the first mount ring 110 is convex, the fitting portion 221 of the main body 210 and / or the arm 220 of the fixing device 200 may be groove-shaped. preferable. However, the present disclosure is not limited to the simple convex shape and groove shape described above, and may be fitted by a combination thereof or other shapes.

The user fits the first mount ring 110 of the lens mount adapter 100 into the fitting portion 221 of the fixing device 200, closes the arm 220, and rotates and tightens the screw 211 to stabilize the lens mount adapter 100. The fixing device 200 can be attached.

7 (a) to 7 (c) are cross-sectional views of the first mount ring of the lens mount adapter 100 in a state where the fixing device 200 is attached to the lens mount adapter 100. 7 (b) is an enlarged view of the 7b portion of FIG. 7 (a), and FIG. 7 (c) is an enlarged view of the 7c portion of FIG. 7 (a). As shown in FIG. 7, the fitting portion 112 of the first mount ring 110 and the fitting portion 221 of the fixing device 200 are fitted to each other. The fitting portion 221-3 of the arm 220 and the fitting portion 221-2 of the main body 210 are fitted to the fitting portion 112 of the first mount ring 110, respectively. It is preferable that there is a slight gap in the fitting portion, whereby the lens mount adapter 100 can be firmly fixed to the fixing device 200.

Then, the fixing device 200 can be fixed to a tripod, a pan head or other equipment by the screw holes 212. By fixing the lens mount adapter 100, the interchangeable lens or gimbal attached to the lens mount adapter 100 can be fixed.

According to the lens mount adapter 100 in the present disclosure, when the user wants to fix the interchangeable lens or gimbal, the fixing device 200 is attached and used, and when the user wants to move the interchangeable lens or gimbal, the fixing device 200 is removed and used. Can be done. This not only enhances versatility, but also makes it possible to reduce the weight, especially when an interchangeable lens or gimbal is desired to be moved. The weight reduction improves the convenience of carrying by the user, and in the case of a gimbal camera or drone in particular, the burden on the gimbal can be reduced and contributes to energy saving.

Further, according to the lens mount adapter 100 in the present disclosure, it is not necessary to directly fix the interchangeable lens or gimbal, so that the expensive direct interchangeable lens or the delicate gimbal is damaged due to the excessive tightening force at the time of fixing. Can be prevented.

Further, according to the lens mount adapter 100 in the present disclosure, since the fixing device 200 is attached to the first mount ring 110 which is sturdy to make, it can be tightened with a large force and can be fixed more stably. become.

In the present disclosure, the case where the fitting portion 112 is provided on the first mount ring 110 will be described as an example, but the fitting portion 112 may be provided on the second mount ring 120. Further, the fitting portion 112 may be provided on both the first mount ring 110 and the second mount ring 120. That is, the fitting portion 112 may be provided on at least one of the first mount ring 110 and the second mount ring 120.

Although the present disclosure has been described above using the embodiments, the technical scope of the invention according to the present disclosure is not limited to the scope described in the above-described embodiments. It will be apparent to those skilled in the art to make various changes or improvements to the embodiments described above. It is clear from the description of the claims that the form with such changes or improvements may be included in the technical scope of the present invention.

100 Lens mount adapter 110 First mount ring 111 Mount pin 112 Fitting part 113 Notch part 120 Second mount ring 121 Electrical contact 130 First lock mechanism 140 Second lock mechanism 200 Fixing device 210 Main body 211 Screw 212 Screw hole 220 Arm 221 Fitting part 222 Hole 230 Rotating part

Claims (6)

In a lens mount adapter having a first mount ring for mounting a lens having a predetermined standard and a second mount ring for mounting on an imaging device.
At least one of the first mount ring and the second mount ring is a lens mount adapter having a fitting portion for mounting a fixing device. The lens mount adapter according to claim 1, wherein the first mount ring has the fitting portion. The lens mount adapter according to claim 1 or 2, wherein the fitting portion includes a fitting shape formed substantially uniformly along the outer peripheral side surface of the mount ring having the fitting portion. The mount adapter for a lens according to claim 3, wherein the fitting portion has a substantially V-shaped cross section in the thickness direction of the mount ring having the fitting portion. The lens mount adapter according to any one of claims 1 to 4, wherein the mount ring having the fitting portion is made of metal. The mount ring having the fitting portion has at least one notch portion for preventing the fixing device from rotating along the mount ring in a fitted state, according to claims 1 to 5. The mount adapter for the lens described in any one of the items.

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