Lens barrel adapter

Abstract

The utility model discloses a lens barrel adapter which comprises an intensifier conversion ring, one end of the intensifier conversion ring is provided with a step structure integrated with the intensifier conversion ring, the step structure is used for limiting an image intensifier, and the image intensifier is arranged in the intensifier conversion ring. The other end of the intensifier conversion ring is provided with an intensifier conversion pressing ring used for axially limiting the image intensifier, a groove is formed in the position, corresponding to a contact of the image intensifier, of the inner wall of the intensifier conversion ring, an elastic piece making close contact with the contact of the image intensifier is placed in the groove, and a bent piece integrated with the elastic piece is arranged on the elastic piece. The bending sheet penetrates through the intensifier conversion ring, the side wall outside the intensifier conversion ring is provided with a wire groove and a contact sheet groove, a contact sheet used for being connected with an electronic component of a lens barrel is fixed in the contact sheet groove, a wire is placed in the wire groove, and the contact sheet and the bending sheet are communicated through the two ends of the wire respectively. According to the utility model, the image intensifier and the lens cone which are not matched can be connected.

Description

Technical Field

[0001] The utility model belongs to the technical field of night vision devices and relates to a lens barrel adapter. Background Art

[0002] In the prior art, the image intensifier is a very important component in the night vision device and is also a very expensive component. A certain model of intensifier may not be suitable for all specifications of lens barrels. In order to make the two compatible without changing the size of the lens barrel and the image intensifier, an adapter is required for the conversion. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a lens barrel adapter that can solve the above-mentioned problem.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A lens barrel adapter is located between the lens barrel and an image intensifier. The adapter includes an intensifier conversion ring. One end of the intensifier conversion ring is provided with a step structure integrated therewith for limiting the image intensifier. The image intensifier is placed inside the intensifier conversion ring. The other end of the intensifier conversion ring is provided with an intensifier conversion pressure ring for axially limiting the image intensifier. A groove is provided on the inner wall of the intensifier conversion ring at a position corresponding to the contact of the image intensifier. A spring piece that is in close contact with the contact of the image intensifier is placed in the groove. A bending piece that is integrated therewith is provided on the spring piece. The bending piece passes through the intensifier conversion ring. A wire groove and a contact piece groove are provided on the side wall outside the intensifier conversion ring. A contact piece for connecting with electronic components of the lens barrel is fixed in the contact piece groove. A wire is placed in the wire groove. The two ends of the wire connect the contact piece and the bending piece respectively.

[0006] Furthermore, a limiting protrusion is provided on the inner wall of the intensifier conversion ring inside the step, and the limiting protrusion matches the limiting groove on the image intensifier.

[0007] Furthermore, the intensifier conversion pressure ring is connected to the inner wall of the intensifier conversion ring by internal and external threads, and a through hole is opened at the intensifier conversion pressure ring corresponding to the imaging lens barrel of the image intensifier.

[0008] Furthermore, a positioning groove is formed at the bottom of the exterior of the intensifier conversion ring and matches with the positioning protrusion on the lens barrel.

[0009] The beneficial effects of the utility model are:

[0010] The utility model has a simple structure and is easy to operate, and can connect unmatched image intensifiers and lens barrels, thereby increasing the adaptability of the image intensifier and greatly saving the production cost of night vision devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the intensifier conversion ring and the image intensifier after being assembled in an embodiment of the utility model;

[0014] Figure 3 A longitudinal cross-sectional view of an embodiment of the utility model;

[0015] Figure 4 This is a schematic structural diagram of an enhancer conversion ring according to an embodiment of the utility model;

[0016] Figure 5 The figure is a schematic structural diagram of an image intensifier according to an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Intensifier conversion ring; 11. Step; 12. Limiting protrusion; 13. Contact plate groove; 14. Wire groove; 15. Positioning groove; 16. Intensifier conversion pressure ring; 2. Image intensifier; 21. Limiting groove; 3. Lens barrel; 4. Spring piece; 41. Bending piece; 5. Contact plate; 6. Wire. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] like Figures 1 to 5 As shown, a lens barrel adapter is located between the lens barrel 3 and the image intensifier 2, the adapter includes an intensifier conversion ring 1, one end of the intensifier conversion ring 1 is provided with a step 11 structure integrated therewith, which is used to limit the image intensifier 2, the image intensifier 2 is placed inside the intensifier conversion ring 1, and a limiting protrusion 12 is provided on the inner wall of the intensifier conversion ring 1 inside the step 11, which matches the limiting groove 21 on the image intensifier 2, and the other end of the intensifier conversion ring 1 is provided with an intensifier conversion pressure ring 16 for axially limiting the image intensifier 2, the intensifier conversion pressure ring 16 is connected to the inner wall of the intensifier conversion ring 1 by internal and external threads, and a through hole is opened at the intensifier conversion pressure ring 16 corresponding to the imaging lens barrel of the image intensifier 2.

[0024] A groove is provided on the inner wall of the intensifier conversion ring 1 at a position corresponding to the contact of the image intensifier 2, and a spring piece 4 is placed in the groove. The spring piece 4 can ensure that the spring piece 4 is in close contact with the contact of the image intensifier 2 under the action of elastic force. A bending piece 41 integral with the spring piece 4 is provided on the side where the spring piece 4 contacts the intensifier conversion ring 1. The bending piece 41 passes through the intensifier conversion ring 1. A wire groove 14 and a contact piece groove 13 are provided on the outer side wall of the intensifier conversion ring 1. A contact piece 5 for connecting with the electronic components of the lens barrel 3 is fixed in the contact piece groove 13. A wire 6 is placed in the wire groove 14. The two ends of the wire 6 connect the contact piece 5 and the bending piece 41 respectively. In this way, the position of the contact of the image intensifier 2 is shifted, making it suitable for a lens barrel 3 of large size.

[0025] In order to facilitate the connection between the adapter and the lens barrel 3 , a positioning groove 15 is formed at the bottom of the exterior of the intensifier conversion ring 1 to match the positioning protrusion on the lens barrel 3 .

[0026] The working principle of this utility model:

[0027] Align the image intensifier 2 with the limiting protrusion 12 and install it into the intensifier conversion ring 1, tighten the intensifier conversion pressure ring 16, and then align the positioning groove 15 of the intensifier conversion ring 1 with the positioning protrusion of the lens barrel 3 and install it into the lens barrel 3.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens barrel adapter, characterized in that: The adapter is located between the lens barrel (3) and the image intensifier (2), and comprises an intensifier conversion ring (1). One end of the intensifier conversion ring (1) is provided with a step (11) structure integral therewith, which is used to limit the position of the image intensifier (2). The image intensifier (2) is placed inside the intensifier conversion ring (1). The other end of the intensifier conversion ring (1) is provided with an intensifier conversion pressure ring (16) which is used to axially limit the image intensifier (2). A groove is provided on the inner wall of the intensifier conversion ring (1) at a position corresponding to the contact point of the image intensifier (2). A spring sheet (4) in close contact with a contact of the image intensifier (2) is placed in the groove, a bending sheet (41) integral with the spring sheet (4) is provided on the spring sheet (4), the bending sheet (41) passes through the intensifier conversion ring (1), a wire groove (14) and a contact sheet groove (13) are provided on the outer side wall of the intensifier conversion ring (1), a contact sheet (5) for connecting with an electronic component of a lens barrel (3) is fixed in the contact sheet groove (13), a wire (6) is placed in the wire groove (14), and two ends of the wire (6) respectively connect the contact sheet (5) and the bending sheet (41).

2. The lens barrel adapter according to claim 1, characterized in that: A limiting protrusion (12) is provided on the inner wall of the intensifier conversion ring (1) inside the step (11), and the limiting protrusion (12) matches the limiting groove (21) on the image intensifier (2).

3. The lens barrel adapter according to claim 1, characterized in that: The intensifier conversion pressure ring (16) is connected to the inner wall of the intensifier conversion ring (1) by internal and external threads, and a through hole is opened at the intensifier conversion pressure ring (16) corresponding to the imaging lens barrel of the image intensifier (2).

4. The lens barrel adapter according to claim 1, characterized in that: The bottom of the exterior of the intensifier conversion ring (1) is provided with a positioning groove (15) which matches with the positioning protrusion on the lens barrel (3).

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