Locking type adapter ring for switching Leica M lens to Arri movie machine

Abstract

The utility model relates to the field of a connection technology of a Leica M lens adapter Arri movie machine, in particular to a locking type adapter ring of the Leica M lens adapter Arri movie machine, which comprises an Arri movie machine connecting seat, a clamping jaw pressing ring, a driving thread ring and a lens positioning pin. The Arri movie machine connecting seat is provided with four movie machine screw counter bores, a thread structure is arranged in the Arri movie machine connecting seat, and three sets of equal arc-shaped clamping grooves are further arranged in the Arri movie machine connecting seat. The clamping jaw pressing ring is provided with three groups of equal boss structures; the driving thread ring is provided with an external thread, a handle and six connecting holes. Compared with the existing adapter ring, the adapter ring disclosed by the utility model adopts a thread locking mode, so that most Leica M lenses with different specifications can be conveniently mounted, the firmness and the stability of adapter connection between the Leica M lenses and the Leica M lenses are improved, and the lens resources of the Arri movie machine are expanded and enriched.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of Leica M lens adapter Arri movie machine connection technology, in particular to a locking type adapter ring of Leica M lens adapter Arri movie machine. BACKGROUND

[0002] Nowadays, there are many kinds of movie machines and lenses, and many professional photographers hope to use other different brand lenses on the original movie machine to bring new fun and different experience. At present, the flange distance of Arri movie machine and Leica M lens is quite different due to the design of the manufacturer. Arri movie machine usually adopts PL bayonet with 52mm or LPL bayonet with 44mm (long flange distance), while the flange distance of Leica M lens bayonet is 27.8mm. The difference in flange distance is too large, and directly adapting the lens has some limitations in structure, which leads to the inability to use different lenses with each other, bringing great difficulty to the design of adapter ring. Therefore, it is difficult to use Leica M lens on Arri movie machine when adapting each other. In order to use Leica M lens on Arri movie machine, the feasibility analysis and research are carried out for this problem. The technical scheme of the utility model can lock and stably connect Leica M lens and Arri movie machine, which brings hope for Arri movie machine to adapt Leica M lens, increases the resources of Leica M lens, and can better play the role of Leica M lens. After searching, no same or similar technical scheme is found. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve one of the technical problems in the prior art. The present application proposes a locking type adapter ring of Leica M lens adapter Arri movie machine, which not only facilitates the installation of Leica M lens on Arri movie machine, but also improves the safety and stability of the adapter, bringing higher shooting quality and effect to the shooting of movies.

[0004] Due to the inconsistent size of Leica M lens appearance, it is difficult to utilize large size Leica M bayonet lens, therefore, the installation lens port diameter of Arri movie machine connecting seat (1) and driving thread ring (3) is increased, so as to better install and use most of the Leica M port lenses.

[0005] The utility model adopts the technical scheme: provide a kind of adapter ring of Leica M lens adapter Arri movie machine, including Arri movie machine connecting seat (1), claw compression ring (2), driving screw ring (3), lens positioning pin (4) four parts composition.A kind of locking type adapter ring of Leica M lens adapter Arri movie machine, including Arri movie machine connecting seat (1), it is characterized in that:Arri movie machine connecting seat (1) is provided with driving screw ring (3);Driving screw ring (3) is fixedly connected with claw compression ring (2) being provided with;Driving screw ring (3) outside has dismantling handle;Arri movie machine connecting seat (1) is provided with lens positioning pin (4), Arri movie machine connecting seat (1) is provided with limiting structure;Arri movie machine connecting seat (1) is provided with three groups of equal arc-shaped clamping groove structure, Arri movie machine connecting seat (1) is connected together with driving screw ring (3) using screw structure;Arri movie machine connecting seat (1) and Leica M lens base are designed on one part;Arri movie machine connecting seat (1) is fixedly connected with lens positioning pin (4);Driving screw ring (3) and claw compression ring (2) are connected using the fixed mode of screw;Driving screw ring (3) is provided with dismantling handle, and claw compression ring (2) is pressed by handle rotation to hold Leica M lens bayonet;Arri movie machine connecting seat (1) is installed with lens positioning pin (4).

[0006] Three groups of equal arc-shaped clamping grooves are arranged on Arri movie machine connecting seat (1), and the thread rotation stroke is set, so that driving screw ring (3) can only be disassembled and locked within the rotation range of the arc-shaped clamping groove to limit the stroke.

[0007] Driving screw ring (3) is connected with Arri movie machine connecting seat (1) using a threaded structure, a handle is arranged on driving screw ring (3), so that the lens can be conveniently disassembled;Lens positioning pin (4) is installed on Arri movie machine connecting seat (1) to fix the lens rotation.

[0008] Claw compression ring (2) is connected with driving screw ring (3) to facilitate the rotation of driving screw ring (3) to lock and fix the lens.

[0009] Lens positioning pin (4) is installed on Arri movie machine connecting seat (1).

[0010] Leica M lens reference surface is designed on Arri movie machine bayonet connecting seat (1) on one part, which can more effectively save structural space to design the adapter ring device.

[0011] When shooting movies, gaps in the lens mounting due to the adapter ring often lead to problems such as unclear or blurry images. In order to better reduce the installation error and gap between the lens and the camera, this utility model adopts a threaded connection method and uses the spiral downward sinking method to press and fix the lens claw. During installation, the lens can be easily locked and installed and removed by simply rotating the threaded ring (3), without any gaps or loosening, preventing the lens from generating loose material, thereby improving the quality of shooting movies and the safety of use. Attached Figure Description

[0012] Figure 1 This is a disassembly diagram of the locking adapter ring for a Leica M lens to an Arri cinema camera, as described in this utility model.

[0013] Figure 2 This is a front view of the Leica M lens to Arri cinema camera adapter ring of this utility model.

[0014] Figure 3 This is a schematic diagram of the reverse side of the Leica M lens to Arri cinema camera adapter ring of this utility model.

[0015] Figure 4 This is a front view of the Arri cinema projector connector of this utility model.

[0016] Figure 5 This is a schematic diagram of the clamping ring of this utility model.

[0017] Figure 6 This is a schematic diagram of the drive threaded ring of this utility model.

[0018] In the figure: Arri cinema camera connector (1); pawl clamping ring (2); drive threaded ring (3); lens positioning pin (4). Detailed Implementation

[0019] The following is a detailed description of the present invention in conjunction with specific embodiments thereof:

[0020] As shown in the schematic diagram, the present invention provides an adapter ring for adapting a Leica M lens to an Arri cinema camera, comprising four parts: an Arri cinema camera connector (1), a jaw clamping ring (2), a drive threaded ring (3), and a lens positioning pin (4).

[0021] The Arri cinema projector connector (1) and the drive threaded ring (3) are connected by threads.

[0022] The Arri movie machine connecting seat (1) is designed with three sets of equal 75-degree arc-shaped clamping grooves for driving the rotation of the threaded ring, and the actual driving rotation angle of the utility model is 60 degrees, which is used to ensure that the lens will not fall off due to exceeding the rotation stroke when the lens is disassembled.

[0023] The lens positioning pin (4) is installed in the Arri movie machine connecting seat (1), which can ensure that the Leica M lens will not rotate 360 degrees, and avoid lens movement, so as to ensure the safety of the lens.

[0024] When the utility model is installed, first, the Arri movie machine connecting seat (1) and the driving threaded ring (3) are screwed together, and are aligned through the corresponding three sets of equal 75-degree arc-shaped clamping grooves; second, the four counterbores of the Arri movie machine bayonet connecting seat (1) are directly fixed with the Arri movie machine by screws.

[0025] The Arri movie machine connecting seat (1) is provided with an internal thread structure, the driving threaded ring (3) is provided with an external thread structure, and the two parts are connected in cooperation; the clamping jaw compression ring (2) and the driving threaded ring (3) are fixed together by six screws, when the driving threaded ring (3) is rotated and screwed downward, the clamping jaw compression ring (2) will also move downward, at this time, the clamping jaw of the Leica M lens will be tightly pressed and fixed, realizing the stable connection of the Leica M lens.

[0026] The above-mentioned embodiments of the utility model are only for illustrating the technical concept and detailed scheme of the locking type adapter ring for adapting the Leica M lens to the Arri movie machine. The purpose is to enable those skilled in the art to understand the technical content and specific implementation, but the protection scope of the utility model is not limited to this, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change should be covered in the protection scope of the utility model. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A locking adapter ring for adapting a Leica M lens to an Arri cinema camera, comprising an Arri cinema camera connector (1), characterized in that: The Arri cinema camera connector (1) is provided with a drive threaded ring (3); the drive threaded ring (3) is fixedly connected to the claw clamping ring (2); the drive threaded ring (3) has a disassembly handle on the outside; the Arri cinema camera connector (1) is provided with a lens positioning pin (4) and a limiting structure.

2. The locking adapter ring for adapting a Leica M lens to an Arri cinema camera according to claim 1, characterized in that: The Arri cinema camera connector (1) is provided with three sets of equal arc-shaped slot structures. The Arri cinema camera connector (1) is connected to the drive threaded ring (3) by a threaded structure. The Arri cinema camera connector (1) and the Leica M lens base are designed on the same part. The Arri cinema camera connector (1) is fixedly connected to the lens positioning pin (4).

3. The locking adapter ring for adapting a Leica M lens to an Arri cinema camera according to claim 2, characterized in that: The drive threaded ring (3) and the claw clamping ring (2) are connected by screws.

4. The locking adapter ring for adapting a Leica M lens to an Arri cinema camera according to claim 2, characterized in that: The drive threaded ring (3) is equipped with a disassembly handle, which is used to rotate the jaw clamping ring (2) to press the Leica M lens mount.

5. A locking adapter ring for adapting a Leica M lens to an Arri cinema camera according to claim 3, characterized in that: The Arri cinema camera connector (1) is equipped with a lens positioning pin (4).

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